CN101624238A - Scale and corrosion inhibiting agent for circular cooling water of oxygen preparation plant as well as method and application thereof - Google Patents
Scale and corrosion inhibiting agent for circular cooling water of oxygen preparation plant as well as method and application thereof Download PDFInfo
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- CN101624238A CN101624238A CN200910090087A CN200910090087A CN101624238A CN 101624238 A CN101624238 A CN 101624238A CN 200910090087 A CN200910090087 A CN 200910090087A CN 200910090087 A CN200910090087 A CN 200910090087A CN 101624238 A CN101624238 A CN 101624238A
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- 238000005260 corrosion Methods 0.000 title claims abstract description 77
- 230000007797 corrosion Effects 0.000 title claims abstract description 76
- 239000000498 cooling water Substances 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract description 15
- 239000001301 oxygen Substances 0.000 title abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 title abstract description 15
- 239000003795 chemical substances by application Substances 0.000 title abstract description 8
- 230000002401 inhibitory effect Effects 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000010949 copper Substances 0.000 claims abstract description 41
- 229910052802 copper Inorganic materials 0.000 claims abstract description 41
- 229920001577 copolymer Polymers 0.000 claims abstract description 36
- 150000003751 zinc Chemical class 0.000 claims abstract description 32
- 229920000805 Polyaspartic acid Polymers 0.000 claims abstract description 30
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 claims abstract description 26
- 108010064470 polyaspartate Proteins 0.000 claims abstract description 26
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000003112 inhibitor Substances 0.000 claims description 76
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 27
- 230000003134 recirculating effect Effects 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 8
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 5
- 239000012964 benzotriazole Substances 0.000 claims description 5
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Natural products NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 3
- 239000004471 Glycine Substances 0.000 claims description 3
- -1 glycine dimethylene phosphonic acids Chemical class 0.000 claims description 3
- RZLVQBNCHSJZPX-UHFFFAOYSA-L zinc sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Zn+2].[O-]S([O-])(=O)=O RZLVQBNCHSJZPX-UHFFFAOYSA-L 0.000 claims description 3
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 2
- JKTORXLUQLQJCM-UHFFFAOYSA-N 4-phosphonobutylphosphonic acid Chemical compound OP(O)(=O)CCCCP(O)(O)=O JKTORXLUQLQJCM-UHFFFAOYSA-N 0.000 claims 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Substances CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims 1
- 230000005764 inhibitory process Effects 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 12
- 238000007710 freezing Methods 0.000 abstract description 10
- 230000008014 freezing Effects 0.000 abstract description 10
- 230000015572 biosynthetic process Effects 0.000 abstract description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 6
- 239000008235 industrial water Substances 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 239000013081 microcrystal Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 53
- 239000002826 coolant Substances 0.000 description 13
- 238000004458 analytical method Methods 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 239000011575 calcium Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 239000002455 scale inhibitor Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000012085 test solution Substances 0.000 description 8
- 229910000975 Carbon steel Inorganic materials 0.000 description 7
- 239000010962 carbon steel Substances 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 230000003020 moisturizing effect Effects 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
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- 229910052749 magnesium Inorganic materials 0.000 description 3
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- 239000002808 molecular sieve Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
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- 238000011068 loading method Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
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- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical class [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
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- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
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Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to a scale and corrosion inhibiting agent for the circular cooling water of an oxygen preparation plant as well as a method and an application thereof, which are characterized in that the scale and corrosion inhibiting agent comprises the following components: organic phosphonate, polycarboxylic acid multicomponent copolymer, copper corrosion inhibiting agent, zinc salt, polyaspartic acid and water, wherein the water is solvent. The scale and corrosion inhibiting agent can effectively prevent the formation of calcium carbonate, disperse calcium carbonate microcrystals, change the crystallization state of the calcium carbonate and have favorable performance for preventing the formation of calcium carbonate scale in the circular cooling water. The invention has the effect of preventing calcium carbonate incrustation under the complicated condition that the circular cooling water of the oxygen preparation plant is not only used by a high-temperature heat exchanger, but also used by low-temperature freezing water equipment and low-temperature equipment. Only 10-50 mg/L of scale and corrosion inhibiting agent can achieve the requirement of scale and corrosion inhibition, and the invention greatly saves the industrial water consumption amount and the economic cost and has favorable economic and social benefits.
Description
Technical field
The present invention relates to the Treatment of Industrial Water technical field, be applied to the scale inhibitor technology in oxyen manutactory's recirculating cooling water system specifically, prevent pipeline, equipment scaling and corrosion, particularly a kind of anti-incrustation corrosion inhibitor and methods and applications that are used for oxyen manutactory's recirculated cooling water.Anti-incrustation corrosion inhibitor of the present invention is energy-saving low-phosphorous environment-friendly water treatment agent.
Background technology
Now; the world faces the population growth; the deterioration of the ecological environment; crises such as shortage of water resources; the scarcity of water resources and pollution constitute a threat to social stability, Economic development; one of outstanding problem that becomes that world's overwhelming majority of countries stability and development faces, water saving, the utilization ratio that improves water resources has been the task of top priority.Water saving at first will be caught relatively and to concentrate the process water that uses, and in process water, the ratio maximum of water coolant accounts for 60-70%, and therefore, saving water coolant just becomes the industry urgent task of economizing on water, cooling moisture once-through cooling water and recirculated cooling water.Recirculated cooling water is being used for being used further to cooling after cooled water is lowered the temperature by cooling tower.After the cooling water circulation use, saved water consumption greatly, but because water coolant constantly evaporates, salt is concentrated in the water, adds that water coolant fully contacts with atmosphere, dissolved oxygen and bacteria content increase greatly, cause recirculated cooling water serious fouling, corrosion and bacterium bath to occur and grow or the like disadvantageous effect, directly influence the normal operation of equipment and the work-ing life of equipment, and then, directly restrict unit safety, economical operation, will bring heavy losses to enterprise when serious.For this reason, need in water coolant, add water treatment agent,, prevent that recirculated water fouling, corrosion and bacterium bath from growing etc. as Scale inhibitors, inhibiter, Biocidal algae-killing agent etc.In numerous methods; adopting the Water Treatment technology is the effective means that current industry water saving of generally acknowledging is both at home and abroad the most generally used; simultaneously, take suitable water technology to carry out the anti-corrosion, scale-inhibiting protection, can prolong the work-ing life of system device effectively heat power equipment.
Oxygen is the material that all lived bodies are depended on for existence on the earth.It is easy to generate oxide compound with other material generation chemical reactions, can produce a large amount of heats in oxidation reaction process.Therefore, oxygen is used widely in departments such as metallurgy, chemical industry, the energy, machinery, national defense industry as oxygenant and ignition dope.The oxygen user of iron and steel enterprise's maximum is the converter steelmaking workshop, utilizes to be blown into high purity oxygen gas, makes oxidations of impurities such as carbon and phosphorus in the iron, sulphur, silicon, and the heat that oxidation produces is enough to keep the required temperature of steelmaking process.Because oxygen has important use in industrial production and scientific technological advance, so the mankind produce oxygen with different methods already.The method of industrial system oxygen has: chemical method, electrolytic process, absorption method and Deep Cooling Method.Wherein Deep Cooling Method is most economical, can produce oxygen in a large number again, thereby becomes the industrial main method of producing oxygen at present.Deep cooling legal system oxygen is to be raw material with inexhaustible, the nexhaustible air of occurring in nature, makes its liquefying and rectifying at low temperatures, is separated into oxygen and nitrogen.Air separation plant (common name oxygenerator) is exactly to utilize the Deep Cooling Method separation of air to produce a kind of machinery of oxygen and nitrogen.
Temperature when air separation facility is wished the pressurized air motion device is low as far as possible, with thermal load of reducing airborne saturation water content and main heat exchanger etc.And in fact air compressor machine can not realize isothermal compression, the air themperature after the final stage compression after the heat exchange cooling also up to 50 ℃.Therefore, air behind air compressor machine, advance air separation facility before, cool off air.Especially to the molecular sieve adsorption purification process, because the loading capacity of molecular sieve is relevant with temperature, temperature is low more, and loading capacity is big more.Thereby reduce the size that air themperature can be dwindled adsorber.In the running, just can guarantee decontamination effect improving, maybe can prolong switching time, reduce switch cost.Therefore, air more requires in advance pressurized air to be cooled to alap temperature behind compressor, and then enters adsorber.
The air precooling system that adopts has several patterns at present: the atmospheric cooling tower of band water at low temperature directly contacts cooled compressed air with spray water with air.Water coolant is from two portions: after reducing the temperature of water coolant with dirty nitrogen in water cooling tower, be conducted to atmospheric cooling tower with pump again; Another part further cools air to the temperature that needs with the water at low temperature that the vaporizer of refrigerator provides.This type of cooling directly contacts by gas, liquid carries out heat exchange.
Air separation plant generally with rivers and lakes or underground water as water coolant.Usually all contain hydrocarbonate [Ca (HCO such as suspended substance (silt and other dirts) and calcium, magnesium in this water
3)
2And Mg (HCO
3)
2], be called hard water.Suspended substance more easily stops up passage, filtering net and the valve etc. of water cooler.Hydrocarbonate such as calcium, the magnesium generation throw out that is heated, promptly form general said when water temperature raises easy generation lime scale.General water temperature is at the formation incrustation scale that is about to begin more than 45 ℃, the high more easy more fouling of water temperature.Recirculated cooling water another characteristics in oxyen manutactory's are in cyrogenic equipment foulings such as cryogenic freezing water and air cooling towers, incrustation scale is located attached to the tube wall of water cooler, filler, shower nozzle or the sieve aperture etc. of atmospheric cooling tower, not only influence heat exchange, reduce cooling performance, and hinder the circulation of water coolant or air, can cause equipment failure when serious.
Therefore, oxyen manutactory's recirculating cooling water system is born two tasks simultaneously, and one provides water coolant for a plurality of interchanger of air separation plant, and it two provides the Cryogenic air water coolant for sieve purification system.Be to improve the adsorptive power of molecular sieve, air cooling water must just produce a new problem thus below 10 degree, promptly refrigerated water at atmospheric cooling tower nozzle place, filler place and filter screen place produce the low temperature dirt.For addressing this problem, the big quantity research of my company's process, and Hebei area Duo Jia oxyen manutactory recirculating cooling water system carried out developing anti-incrustation corrosion inhibitor of new generation on the autoptical basis, solve interchanger high temperature and use and fouling of refrigerated water cyrogenic equipment and equipment corrosion problem.Therefore, the inventor has finished the described invention of present patent application: a kind of anti-incrustation corrosion inhibitor and methods and applications that are used for oxyen manutactory's recirculated cooling water.
Summary of the invention
The present invention is directed to the defective or the deficiency that exist in the characteristics of oxyen manutactory's recirculating cooling water system technology and the prior art, a kind of anti-incrustation corrosion inhibitor and methods and applications that are used for oxyen manutactory's recirculated cooling water are provided.This anti-incrustation corrosion inhibitor is a kind of being fit to do moisturizing with underground water or river, and high basicity, high-hardness water have the water conditioner of the open type recirculating cooling water system use of high temperature heat exchange and cryogenic freezing wetting system, and have the characteristics of efficient, low phosphine environmental protection.
The present invention also provides a kind of above-mentioned preparation method who is used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water.
The present invention also provides a kind of above-mentioned application that is used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water.
Technical conceive of the present invention is, anti-incrustation corrosion inhibitor of the present invention is that to have high-temperature heat-exchanging and cryogenic freezing water and equipment simultaneously with oxyen manutactory's recirculated cooling water be background, and a kind of being fit to that proposes, done moisturizing with underground water or river, high basicity, high-hardness water, water conditioner with open type recirculating cooling water system of high temperature heat exchange and cryogenic freezing wetting system, by research, test or experiment, selecting six kinds of combinations of substances forms, these six kinds of materials are respectively: organic phosphonate, the poly carboxylic acid multiple copolymer, copper inhibitor, poly aspartic acid, zinc salt, compositions such as water, wherein water plays solvent.In actual the use,, make this prescription have scale inhibitor function efficiently, can be used on the Treatment of Industrial Water field, especially in oxyen manutactory's recirculating cooling water system, use by various medicament intrinsic synergistic effects in the prescription.
Technical scheme of the present invention is as follows:
Be used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water, it is characterized in that, comprise following each component: organic phosphonate, poly carboxylic acid multiple copolymer, copper inhibitor, poly aspartic acid, zinc salt and water, wherein water is solvent.
The weight part scope of described each component is: organic phosphonate 1-30 part, poly carboxylic acid multiple copolymer 1-40 part, copper inhibitor 1-10 part, poly aspartic acid 1-60 part, zinc salt 1-30 part, water 1-50 part.
The weight part scope of described each component is: organic phosphonate 15-30 part, poly carboxylic acid multiple copolymer 20-30 part, copper inhibitor 3-6 part, poly aspartic acid 20-60 part, zinc salt 10-25 part and water 20-50 part.
The weight part of described each component is: 28 parts of organic phosphonates, 25 parts of poly carboxylic acid multiple copolymers, 4 parts of copper inhibitors, 30 parts of poly aspartic acids, 18 parts of zinc salts, 25 parts in water.
Wherein organic phosphonate is selected glycine dimethylene phosphonic acids or 2-phosphinylidyne butane 1,2 for use, the 4-tricarboxylic acid, and molecular formula is C
4H
11O
8NP
2Or C
7H
11O
9P; The poly carboxylic acid multiple copolymer is selected vinylformic acid-sulfonate-Propylene glycol monoacrylate phosphoryl carboxylic acid multiple copolymer for use, and structural formula is (C
3H
4O
2) n (C
7H
18NO
4S) m (C
6H
10O
3) r (PO
2H
2), n, m and r are integer in this copolymer molecule formula, or select other poly carboxylic acid multiple copolymers for use; Copper inhibitor is selected benzotriazole for use, molecular formula C
6H
5N
3Zinc salt is selected Zinc Sulphate Heptahydrate for use, and molecular formula is ZnSO
47H
2O.
Be used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water, it is characterized in that, the preparation that comprises packing 1. with preparation 2., 1. preparation comprises following each component: organic phosphonate, poly carboxylic acid multiple copolymer, copper inhibitor, zinc salt and water, wherein water is solvent; 2. preparation comprises following component: poly aspartic acid.
Described preparation 1. with preparation each component in 2. based on the described anti-incrustation corrosion inhibitor that is used for oxyen manutactory's recirculated cooling water of one of claim 2-5.
The above-mentioned preparation method who is used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water may further comprise the steps:
Get component organic phosphonate, poly carboxylic acid multiple copolymer, copper inhibitor, zinc salt, poly aspartic acid, water in proportion.
Organic phosphonate, poly carboxylic acid multiple copolymer, copper inhibitor, zinc salt, water are added in the reactor, stir, this be preparation 1.; Poly aspartic acid is prepared separately, this be preparation 2.; 1. preparation is anti-incrustation corrosion inhibitor of the present invention with preparation combination 2..
The above-mentioned application that is used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water in oxyen manutactory's Water Treatment in Circulating Cooling System, described anti-incrustation corrosion inhibitor is by amount of makeup water, 2. 1. preparation added respectively with preparation, and ratio is 10: 3, and it adds up to dosage is 10～50mg/L finished product dosage.
Technique effect of the present invention is as follows:
The present invention is used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water, is several materials are mixed into composition, and forms with addition of poly aspartic acid.These several materials include organic phosphonates, poly carboxylic acid multiple copolymer, copper inhibitor, zinc salt, poly aspartic acid, water.Oxyen manutactory's recirculating cooling water system comprises high-temperature heat-exchanging and cryogenic freezing water for a plurality of users provide water coolant, and copper, stainless steel and simple steel heat exchanger or pipeline are wherein arranged.In the composition organic phosphonate often and the composite use of zinc salt in recirculating cooling water system, carbon steel is had good corrosion inhibition.The poly carboxylic acid multiple copolymer has obvious scale inhibition effect in high rigidity, high basicity circulating cooling water quality, and has the ability of good dispersion lime carbonate and calcium phosphate.Poly aspartic acid is applied in the industrial circulating cooling water process field as a kind of novel green water conditioner.Polyvalent metal ions such as poly aspartic acid can chelating calcium, magnesium, copper, iron, especially can change the crystals of calcium salts structure, disperse the lime carbonate crystallite, make it form soft dirt, can be used for water treatment field such as industrial circulating water, feedwater, reverse osmosis water, oil-field water, sea water desaltination, Excellence in Performance in high rigidity, high basicity, high pH value, high concentration multiple system.Benzotriazole is the copper inhibitor of excellent performance, contains a large amount of copper heat exchangers in oxyen manutactory's recirculating cooling water system, uses benzotriazole can make copper material surface film forming rapidly, suppresses the copper material corrosion.Zinc salt belongs to the cathode type inhibiter, at the negative electrode position, and when zine ion during near the metallic surface, the OH that can build up with the cathodic area
-Form the zinc hydroxide throw out apace, be deposited on cathode surface, thereby play corrosion inhibition.Zinc salt can be in water medium the metallic surface fast filming, this is that other inorganic inhibitors are incomparable, but film is soft insecure, so can not suppress the corrosion of metal in the aqueous solution fully when zinc salt uses separately.Composite synergism of several components, and can reduce these organic consumptions.
Because the present invention limits the weight part scope of each component, these qualifications combine the consideration of testing data, practical application effect, economy and environmental benefit, fully satisfy normal temperature environmental protection, applied range and technical requirements efficiently, also provide convenience simultaneously for of the present invention promoting the use of.
Because the industrial cycle water treatment composition that the present invention still develops at the etching problem of heat power equipment, good by its corrosion inhibition of a large amount of evidences, technical superiority is obvious.Add composition medicament of the present invention in circulating water system after, the erosion rate of carbon steel, stainless steel, copper all reaches the requirement of national Design of Circulation Cooling Water Treatment standard.
In oxyen manutactory's recirculating cooling water system, using compound prescription product dosage of the present invention is that 10～50mg/L stops high-temperature heat-exchanging fouling and the fouling of cryogenic freezing wetting system simultaneously, and as seen its using dosage is low, has considerable economic.Shown that fully the present invention has low dosage, energy-efficient technique effect.
Carry out equipment inspection after using compound prescription of the present invention, oxyen manutactory's recirculated cooling water high-temperature heat-exchanging and pipeline all do not have scale formation, and refrigerated water pipeline, cooling tower and filter screen do not have lime carbonate yet and separate out depositional phenomenon.No matter be carbon steel material, still copper and stainless equipment inwall does not all have obvious corrosion generation, and the equipment inspection state obviously is better than the domestic same device level same period.
Embodiment
Below will the present invention will be further described by example.
The objective of the invention is to be achieved through the following technical solutions:
Be used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water, it is characterized in that, comprise that following component is: organic phosphonate, poly carboxylic acid multiple copolymer, copper inhibitor, poly aspartic acid, zinc salt and water, wherein water is solvent.
The weight part scope of described each component is elected as: organic phosphonate 1-30 part, poly carboxylic acid multiple copolymer 1-40 part, copper inhibitor 1-10 part, poly aspartic acid 1-60 part, zinc salt 1-30 part, water 1-50 part.
The weight part scope of described each component is preferably: organic phosphonate 15-30 part, poly carboxylic acid multiple copolymer 20-30 part, copper inhibitor 3-6 part poly aspartic acid 20-60 part, zinc salt 10-25 part and water 20-50 part.
The weight part of described each component is: 28 parts of organic phosphonates, 25 parts of poly carboxylic acid multiple copolymers, 4 parts of copper inhibitors, 30 parts of poly aspartic acids, 18 parts of zinc salts, 25 parts in water.
Wherein the concrete composition of organic phosphonate can be glycine dimethylene phosphonic acids or 2-phosphinylidyne butane 1,2, the 4-tricarboxylic acid, and molecular formula is C
4H
11O
8NP
2Or C
7H
11O
9P; The concrete component of poly carboxylic acid multiple copolymer can be vinylformic acid-sulfonate-Propylene glycol monoacrylate phosphoryl carboxylic acid multiple copolymer, and structural formula is (C
3H
4O
2) n (C
7H
18NO
4S) m (C
6H
10O
3) r (PO
2H
2), n, m and r are known integer in this copolymer molecule formula, or the multipolymer that has close effect in the present invention; Copper inhibitor can be benzotriazole, molecular formula C
6H
5N
3Poly aspartic acid; Zinc salt can be Zinc Sulphate Heptahydrate, and molecular formula is ZnSO
47H
2O.
The production technique that the present invention is used for the anti-incrustation corrosion inhibitor (being designated hereinafter simply as TW-301 or TW-301 anti-incrustation corrosion inhibitor) of oxyen manutactory's recirculated cooling water is described below:
1) get the raw materials ready: in strict accordance with formulation ratio, the octarius of using tricks takes by weighing 25 parts in 28 parts of quantitative organic phosphonates, 25 parts of poly carboxylic acid multiple copolymers, 4 parts of copper inhibitors, 18 parts of zinc salts and water, 30 parts of poly aspartic acids successively.
2) produce: open vacuum pump, in organic phosphonate, poly carboxylic acid multiple copolymer and water suction reactor, open and stir (80 rev/mins), under condition of stirring, add zinc salt and copper inhibitor and make its whole dissolvings, continued stir about 20 minutes, 1. packing behind the mixing promptly gets thing preparation of the present invention.2. preparation is poly aspartic acid, preparation separately, packing separately.
Three, the packing inspection is analysed: the said products oxyen manutactory recirculated cooling water anti-incrustation corrosion inhibitor branch is installed in 25 kilograms of plastic barrels.
Four, sampling analysis.
Five, adhesive label and conformity certification and handle warehouse-in.
The technical performance index that is used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water is described below:
Preparation 1.
Outward appearance: brown liquid;
Solids content (%): 〉=23
Total phosphorus (%): 〉=4
PH value (1% aqueous solution): 1.5-4.5;
Density g/cm
3(20 ℃): 1.05-1.25.
Preparation 2.
Outward appearance: brown liquid
Solids content (%): 〉=30
PH value (1% aqueous solution): 9.0-11.0
Density g/cm
3(20 ℃): 1.05-1.25
The present invention also provides the application method of described anti-incrustation corrosion inhibitor in the bigger recirculating cooling water system of variation water quality.In Duo Jia oxyen manutactory, area, Hebei recirculating cooling water system, this contrivance is by moisturizing, and its suitable dosage is 10～50mg/L, all obtains obvious scale inhibitor effect, demonstrates fully the characteristic of its low dosage.
To the Economic and Efficiency Analysis of a kind of anti-incrustation corrosion inhibitor that is used for oxyen manutactory's recirculated cooling water of the present invention and methods and applications as can be known, because national development and the factor that is on the rise of environmental pollution through advancing by leaps and bounds, becoming increasingly conspicuous of shortage of water resources contradiction, water coolant recycles in the recycle system, improving cycles of concentration will be inexorable trend, and recirculated cooling water fouling and etching problem also become increasingly conspicuous.Recirculating cooling water system existing high-temperature heat-exchanging in oxyen manutactory's has cryogenic freezing water and cyrogenic equipment again, and the fouling of recirculating cooling water system cyrogenic equipment becomes the characteristics of oxyen manutactory's recirculated cooling water operation, is different from general recirculating cooling water system.Anti-incrustation corrosion inhibitor of the present invention is that compound is composite forms for organic phosphonate, co-poly carboxylic acid and poly aspartic acid etc., in recirculated cooling water, can effectively prevent the formation of lime carbonate, the formation that prevents calcium phosphate scale also there is superperformance, in the abominable water quality of high rigidity, high basicity, high chlorine root, can the good scale inhibitor characteristic of performance and silt had very strong dissemination, stable performance, temperature influence not.Adding concentration according to different quality is 10-50mg/L, and available Teat pipette adds system or directly adds the cooling tower water supply tank.It is wide that thing of the present invention adapts to the variation water quality scope, excellent anticorrosion-antiscaling property all can be provided, and the consumption of medicament is very little, adopt anti-incrustation corrosion inhibitor consumption of the present invention only to need 10-50mg/L just can reach the requirement of scale inhibitor, save industrial water consumption and economic cost greatly, had good economic benefit and social benefit.
Embodiment 1:
A kind of anti-incrustation corrosion inhibitor (TW-301) that is used for oxyen manutactory's recirculated cooling water contains following each component: organic phosphonate, poly carboxylic acid multiple copolymer, copper inhibitor, poly aspartic acid, zinc salt and water, wherein water is solvent.
1.1 get the raw materials ready: in strict accordance with formulation ratio, take by weighing quantitative organic phosphonate, poly carboxylic acid multiple copolymer, copper inhibitor, zinc salt and water successively with volume pump, described be preparation 1..2. preparation is poly aspartic acid, separately preparation.
1.2 produce: open vacuum pump, in organic phosphonate, poly carboxylic acid multiple copolymer and water suction reactor, open and stir (80 rev/mins), under condition of stirring, add zinc salt and copper inhibitor and make its whole dissolvings, continued stir about 20 minutes, 1. packing behind the mixing promptly gets thing preparation of the present invention.2. preparation is poly aspartic acid, preparation separately, packing separately.
Embodiment 2:
The present invention is used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water at the recirculated cooling water corrosion inhibition test of oxyen manutactory, area, Shijiazhuang.
2.1 test objective.
Rotary hanging plate corrosion test method is under the given condition in laboratory, goes out the corrosion inhibition that corrosion rate and corrosion inhibition rate are evaluated water conditioner with the loss Mass Calculation of test piece.Adopt rotary hanging plate corrosion measurement method, investigate the corrosive property of oxyen manutactory's recirculating cooling water system, will pass judgment on thing corrosion inhibition of the present invention by the index comprehensives such as erosion rate that appearance color changes, weight-loss method records of testing back carbon steel, stainless steel, copper.
2.2 test conditions.
Test water quality: test water is area, a Shijiazhuang underground water; The water stablizer is that thing of the present invention is used for oxyen manutactory's recirculated cooling water scale inhibitor composition, and add-on is 1. 20mg/L of preparation, and preparation is 6mg/L commodity concentration 2.; Test water temperature: 50 ± 1 ℃; Test piece linear velocity: 170r/min; The distance of test piece upper end and test solution face: should be greater than 2cm; Test piece specification and surface-area: 50 * 25 * 2mm; 28cm
2Test period: 216 hours; Hang test piece sheet number: in every glass three.
Test method is undertaken by " mensuration of water conditioner corrosion inhibition------rotary hanging plate method " GB/T18175-2000 standard.
2.3 experimental procedure.
1. use filter paper lacing film surface grease wiped clean, in normal hexane and dehydrated alcohol, clean respectively then, blot, place moisture eliminator more than 4 hours, weigh, be accurate to 0.0001g, be stored in the moisture eliminator with filter paper with absorbent cotton, stand-by.
2. by requirement of experiment, prepare the water conditioner storing solution.Storing solution concentration is generally about 100 times of running concentration.
3. be ready to test water by test requirements document.
4. add the water treatment stock solution in test glass, add the test water to certain volume, mixing is test solution.Make marks at test glass outer wall and the same level of liquid level place, test glass is placed water-bath.
5. when treating that test solution reaches assigned temperature, hang test piece, starter motor makes lacing film rotate by certain rotation speed, and picks up counting.
6. test glass is not added a cover, and makes the test solution spontaneous evaporation, and moisturizing in per 4 hours once makes liquid level remain on the fixed position.
7. in process of the test, according to actual requirement, replaceable test solution.
8. when reach designated value runtime, stop lacing film and rotate, take out test piece and carry out the outward appearance observation.
9. test piece is scrubbed clean with hairbrush, in Acidwash solution, soaked 3-5 minute then, take out, rapidly with after the tap water flushing, use immediately in the sodium hydroxide solution and about 30 seconds, with tap water, distilled water flushing, with the filter paper wiping and blot, in ethanol solution, soaked about 3 minutes, blot with filter paper, place moisture eliminator more than 4 hours, weigh, be accurate to 0.0001g.Do the pickling blank assay of three lacing films simultaneously.
10. the test piece after the pickling is observed,, should be measured the full depth of spot corrosion and the quantity on the unit surface if spot corrosion is arranged.
2.4 the analysis of corrosion test water sample.
The analysis of table 1 test water sample
| Project | ??pH | Basicity mg/L | Hardness mg/L | ??Ca 2+??mg/L | ??Cl -??mg/L | Specific conductivity us/cm |
| Numerical value | ??8.12 | ??179.5 | ??339.4 | ??237.2 | ??55.48 | ??603 |
2.5 corrosive nature experimental analysis and conclusion.
1) corrosive nature analysis of experiments, table 2
2) corrosive nature conclusion (of pressure testing).
Test lacing film erosion rate analysis in table 2.As known from Table 2, in the underground water of Shijiazhuang area, add thing of the present invention (preparation 1. with 2. adding proportion 10: 3 of preparation), add up to consumption 26mg/L commodity dosage, test period 216h, obvious corrosion phenomenon is not all found in carbon steel, stainless steel, copper test piece.Corrosion of carbon steel rate 0.0151mm/a, stainless steel 0.0002mm/a, copper test piece 0.0003mm/a.Every index all is lower than the national standard requirement, illustrates that thing of the present invention all plays a very good protection to carbon steel, stainless steel, copper material.
Embodiment 3:
3.1 test objective.
, and tentatively determine the reagent combination of this test and add dose the scale inhibition effect of oxyen manutactory's recirculated cooling water make up water under different adding consistencies by static-state scale inhibition test determination product of the present invention.
3.2 test method.
Test method is undertaken by " mensuration of water conditioner scale-inhibiting properties----tosca method " GB/T16632-1996 standard.
3.3 testing sequence.
1. get the 2000ml scene adopt former water add in the beaker, accurately add the required Scale inhibitors storing solution of experiment, stir;
2. beaker being placed 60 ± 1 ℃ water bath with thermostatic control to carry out spontaneous evaporation concentrates;
3. after test solution is concentrated into 2.0 times, take out beaker, test solution is moved in the Erlenmeyer flask of 500ml, bottleneck adds the plug that has long thin glass tube, continues to insert in 60 ± 1 ℃ the water bath with thermostatic control, places 10 hours;
4. test is full after 10 hours, and powered-down according to requirement analysis time, can carry out naturally cooling or put into cold water being quickly cooled to room temperature.After the cooling, if the test solution liquid level just in time on scale marks, is drawn supernatant liquid assay determination calcium ion concn; If liquid level is lower than scale marks, then add water to scale, vibration shakes up, and analyzes calcium ion concn again after clarification or the filtration;
3.4 the antisludging test analysis of water sample.
The analysis of table 3 test water sample
| Project | ??pH | Basicity mg/L | Hardness mg/L | ??Ca 2+??mg/L | ??Cl -??mg/L | Specific conductivity us/cm |
| Numerical value | ??8.12 | ??179.5 | ??339.4 | ??237.2 | ??55.48 | ??603 |
3.5 the static-state scale inhibition performance test is analyzed and conclusion.
1) the static-state scale inhibition performance test is analyzed, and the results are shown in Table 4
| Drug concentration ppm | ??13 | ??26 | ??39 | ??52 |
| Scale inhibition performance % | ??91.4 | ??97.5 | ??98.7 | ??98.8 |
2) static-state scale inhibition performance test conclusion
By evidence, the TW-301 anti-incrustation corrosion inhibitor is that thing of the present invention is used in oxyen manutactory's recirculating cooling water system, preparation 1. with 2. adding proportion 10: 3 of preparation, add up to and add dose when 20～30mg/L commodity dosage is finished product dosage, good scale inhibition dispersion effect is just arranged.Scale inhibition performance is greater than 95%.
Embodiment 4:
4.1 test objective
Limit carbonate hardness is the carbonate hardness value of recirculated cooling water maximum when not producing carbonate deposition.Investigate the scale inhibition effect of TW-301 anti-incrustation corrosion inhibitor by dynamic analog test for oxyen manutactory, area, Shijiazhuang groundwater quality, in the conventional simulation testing apparatus, increase refrigerated water recirculated water analog machine, further investigate the scale inhibition effect of TW-301 anti-incrustation corrosion inhibitor in cryogenic freezing water quality and cyrogenic equipment.
4.2 dynamic simulation tester
Dynamic simulation tester is by water circulating pump, heat exchanger, cooling tower, simulation refrigerator, subcooling water tower, cooling basin, spinner-type flowmeter, compositions such as extra-feed tank.Two waterlines of circulation moisture, one enters circulating water pool by heat exchanger, cooling tower; It enters circulating water pool two by simulation refrigerator, subcooling water tower.
4.3 test conditions
Test apparatus: dynamic analog test instrument
Heat exchanger entrance temperature: 30 ℃
Heat exchanger outlet temperature: 42 ℃
Refrigerator temperature in: 30 ℃
Refrigerator temperature out: 10 ℃
Water stabilizer concentration: preparation is 20mg/L 1.,
Preparation is 6mg/L 2.
4.4 testing sequence
Add the 30L test water in cyclic water tank, it is 26mg/L commodity concentration that the adding water stabilizer makes the concentration of water stabilizer in the cyclic water tank.ON cycle water pump, Control Circulation discharge are 150L/h, and regulating temperature controller setting cyclic water tank temperature is 30.0 ℃, starts heating unit, and system enters automatic running status, and blower fan will be according to the automatic start-stop of temperature variation.Start automatic water-replenishing device, in cyclic water tank, replenish the dosing test water at any time,, keep quantity of circulating water constant to replenish sampling blowdown and vaporization losses.Regular hardness, basicity, calcium hardness, chlorine root, pH value according to test progress testing experiment solution, and calculate cycles of concentration and scale inhibition performance.The control cycles of concentration is at 2.0 times of operation 120h.
4.5 test-results
In this dynamic anti-scale test, add the TW-301 anti-incrustation corrosion inhibitor and add up to 26mg/L commodity dosage to make concentration rate bring up to 2.0 times, and the control cycles of concentration was in 2.0 times of operations 120 hours.Observe heat exchanger and cooling tower, do not find scale formation.Observe simulation refrigerator and low-temp cooling tower, do not find that lime carbonate separates out phenomenon.
The dynamic anti-scale analysis of experiments the results are shown in Table 6
| Project | ??PH | Basicity mg/L | Hardness mg/L | ??Ca 2+??mg/L | ??Cl -??mg/L | Cycles of concentration | Scale inhibition performance % |
| Former water | ??8.12 | ??179.5 | ??339.4 | ??237.2 | ??55.48 | ??- | ??- |
| Recirculated water | ??8.85 | ??355.4 | ??682.3 | ??472.1 | ??113.7 | ??2.05 | ??97.1 |
4.6 dynamic anti-scale performance test conclusion
By evidence, the TW-301 anti-incrustation corrosion inhibitor is that thing of the present invention is used in oxyen manutactory's recirculating cooling water system, preparation 1. with 2. adding proportion 10: 3 of preparation, add up to and add dose when 26mg/L commodity dosage or finished product dosage, cycles of concentration can calcium carbonate scaling not occur and separate out phenomenon in the operation of 2.0 double-length times.Scale inhibition performance is greater than 97%.Illustrate that thing of the present invention all has the effect that fine inhibition lime carbonate is separated out under high temperature heat transfer boundary condition and cryogenic freezing water condition.
Claims (9)
1. be used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water, it is characterized in that, comprise following each component: organic phosphonate, poly carboxylic acid multiple copolymer, poly aspartic acid, copper inhibitor, zinc salt and water, wherein water is solvent.
2. the anti-incrustation corrosion inhibitor that is used for oxyen manutactory's recirculated cooling water according to claim 1 is characterized in that: the weight part scope of described each component is: organic phosphonate 1-30 part, poly carboxylic acid multiple copolymer 1-40 part, poly aspartic acid 1-60 part, copper inhibitor 1-10 part, zinc salt 1-30 part and water 1-50 part.
3. the anti-incrustation corrosion inhibitor that is used for oxyen manutactory's recirculated cooling water according to claim 1 is characterized in that: the weight part scope of described each component is: organic phosphonate 15-30 part, poly carboxylic acid multiple copolymer 20-30 part, poly aspartic acid 20-60 part, copper inhibitor 3-6 part, zinc salt 10-25 part and water 20-50 part.
4. the oxyen manutactory's recirculating cooling water system anti-incrustation corrosion inhibitor that is used for according to claim 1, it is characterized in that: the weight part of described each component is: 25 parts in 28 parts of organic phosphonates, 25 parts of poly carboxylic acid multiple copolymers, 30 parts of poly aspartic acids, 4 parts of copper inhibitors, 18 parts of zinc salts and water.
5. the anti-incrustation corrosion inhibitor that is used for oxyen manutactory's recirculated cooling water according to claim 1; it is characterized in that: described organic phosphonate is selected glycine dimethylene phosphonic acids or 2-phosphinylidyne butane 1 for use; 2; the 4-tricarboxylic acid; the poly carboxylic acid multiple copolymer is selected vinylformic acid-sulfonate-Propylene glycol monoacrylate-phosphoryl carboxylic acid multiple copolymer for use; copper inhibitor is a benzotriazole, and zinc salt is selected Zinc Sulphate Heptahydrate for use.
6. be used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water, it is characterized in that, the preparation that comprises packing 1. with preparation 2., 1. preparation comprises following each component: organic phosphonate, poly carboxylic acid multiple copolymer, copper inhibitor, zinc salt and water, wherein water is solvent; 2. preparation comprises following component: poly aspartic acid.
7. the anti-incrustation corrosion inhibitor that is used for oxyen manutactory's recirculated cooling water according to claim 6 is characterized in that, described preparation 1. with preparation each component in 2. based on the described anti-incrustation corrosion inhibitor that is used for oxyen manutactory's recirculated cooling water of one of claim 2-5.
8. according to the described preparation method who is used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water of one of claim 6-7, it is characterized in that, may further comprise the steps:
Get component organic phosphonate, poly carboxylic acid multiple copolymer, copper inhibitor, zinc salt and water in proportion; And poly aspartic acid.
With organic phosphonate, the poly carboxylic acid multiple copolymer, copper inhibitor and zinc salt add in the reactor, add water and stir; This be preparation 1.; Poly aspartic acid be preparation 2.; 2. 1. preparation prepared separately with preparation, packing separately; 1. preparation is anti-incrustation corrosion inhibitor of the present invention with preparation combination 2..
9. according to the described application that is used for the anti-incrustation corrosion inhibitor of oxyen manutactory's recirculated cooling water in oxyen manutactory's Water Treatment in Circulating Cooling System of one of claim 6-7, this anti-incrustation corrosion inhibitor is by amount of makeup water, 2. 1. preparation added respectively with preparation, ratio is 10: 3, and it adds up to dosage is 10～50mg/L finished product dosage.
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| CN104803494A (en) * | 2015-05-12 | 2015-07-29 | 四川阳森石油技术有限公司 | Corrosion and scale inhibitor for recirculated cooling water |
| CN105217806A (en) * | 2015-10-13 | 2016-01-06 | 武汉钢铁(集团)公司 | Circulating water corrosion inhibitor and application thereof |
| CN108914135A (en) * | 2018-06-21 | 2018-11-30 | 北京万邦达环保技术股份有限公司 | A kind of pickling solution and acid washing method |
| CN114426337A (en) * | 2020-09-27 | 2022-05-03 | 中国石油化工股份有限公司 | Non-phosphorus composite corrosion inhibitor and application thereof |
| CN114426337B (en) * | 2020-09-27 | 2024-02-13 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor and application thereof |
| CN113104996A (en) * | 2021-04-01 | 2021-07-13 | 娄底市东顺环保有限公司 | Low-phosphorus corrosion inhibitor formula for circulating cooling water in steel industry |
| CN114014448A (en) * | 2021-11-10 | 2022-02-08 | 山东天庆科技发展有限公司 | Environment-friendly low-phosphorus scale and corrosion inhibitor for circulating cooling water and preparation method thereof |
| CN115613034A (en) * | 2022-11-15 | 2023-01-17 | 鲁西化工集团股份有限公司煤化工一分公司 | Process for weakening bottom corrosion of water cooling tower of air separation device |
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Application publication date: 20100113 |