CN105645604A - Low-phosphorus scale and corrosion inhibitor - Google Patents
Low-phosphorus scale and corrosion inhibitor Download PDFInfo
- Publication number
- CN105645604A CN105645604A CN201610254561.3A CN201610254561A CN105645604A CN 105645604 A CN105645604 A CN 105645604A CN 201610254561 A CN201610254561 A CN 201610254561A CN 105645604 A CN105645604 A CN 105645604A
- Authority
- CN
- China
- Prior art keywords
- corrosion inhibitor
- low
- acid
- scale
- molybdate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 25
- 238000005260 corrosion Methods 0.000 title claims abstract description 25
- 239000003112 inhibitor Substances 0.000 title claims abstract description 18
- 239000011574 phosphorus Substances 0.000 title claims abstract description 12
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- KJBJCAJCBCPBGV-UHFFFAOYSA-N 2-nitropropanedioic acid Chemical compound OC(=O)C(C(O)=O)[N+]([O-])=O KJBJCAJCBCPBGV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 108010064470 polyaspartate Proteins 0.000 claims abstract description 6
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- VPTUPAVOBUEXMZ-UHFFFAOYSA-N (1-hydroxy-2-phosphonoethyl)phosphonic acid Chemical compound OP(=O)(O)C(O)CP(O)(O)=O VPTUPAVOBUEXMZ-UHFFFAOYSA-N 0.000 claims description 5
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims description 5
- 239000011684 sodium molybdate Substances 0.000 claims description 5
- 235000015393 sodium molybdate Nutrition 0.000 claims description 5
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical group [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 5
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 claims description 5
- 230000005764 inhibitory process Effects 0.000 abstract description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 abstract 1
- 229920000805 Polyaspartic acid Polymers 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 abstract 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
- C02F5/125—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
- C02F5/145—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a low-phosphorus scale and corrosion inhibitor which is composed of the following components in percentage by weight: 8-15% of polyaspartic acid, 5-8% of tungstate, 5-8% of molybdate, 8-15% of nitromalonic acid, 20-30% of hydroxyethylidenediphosphonic acid, 4-7% of hydroxy ethidene bis phosphoric acid and the balance of water. The scale and corrosion inhibitor is easy to prepare, and has the advantages of high stability and favorable corrosion and scale inhibition properties.
Description
Technical field
The present invention relates to chemical technology field, be specifically related to a kind of low-phosphorus antiincrustation corrosion inhibitor.
Background technology
Corrosion inhibiter is a kind of when being present in environment (medium) with suitable concentration and form, it is possible to prevent or slow down the chemical substance of corrosion or the mixture of several chemical substance. In industry, the utilization of recirculated water is conducive to saving the cost of enterprise, improve the benefit of enterprise, but recirculated water in use there will be two problems, the evaporation of moisture when one, causes crystallization and the precipitation of salt, and modal have the incrustation scale such as calcium carbonate, calcium silicates, the existence of incrustation scale greatly reduces heat transfer efficiency, it two is the electrochemical corrosion corrosiveness to equipment of recirculated water, and this corrosion is fatal, gently then more exchange device; Heavy then injure human life, currently mainly adopt anti-incrustation corrosion inhibitor to be added in recirculated water, reduce the appearance of incrustation scale. But the composition of anti-incrustation corrosion inhibitor at present on the market is single, and scale removal effect is bad, particularly with the treatment effect of modal calcium carbonate etc. bad, this is the deficiencies in the prior art.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of new low-phosphorus antiincrustation corrosion inhibitor, and its scale inhibitor is effective, stability is strong.
The present invention adopts the technical scheme that:
A kind of low-phosphorus antiincrustation corrosion inhibitor, is made up of following component by weight percentage:
Poly-aspartate 8-15%
Tungstates 5-8%
Molybdate 5-8%
Nitro malonic acid 8-15%
Hydroxy ethylene diphosphonic acid 20-30%
1-hydroxy ethylidene-1,1-diphosphonic acid 4-7%
Surplus is water.
Described tungstates is sodium tungstate.
Described molybdate is sodium molybdate.
The invention have the advantage that
1, the anti-incrustation corrosion inhibitor of the present invention is without toxic compounds and inorganic phosphate, low stain, is beneficial to environmental conservation;
2, the anti-incrustation corrosion inhibitor of the present invention is easily prepared, good stability, has good inhibition and scale-inhibiting properties.
Detailed description of the invention
Below embodiments of the invention are described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention being made apparent clear and definite defining.
Embodiment 1
A kind of low-phosphorus antiincrustation corrosion inhibitor, is made up of following component by weight percentage:
Poly-aspartate 8%
Sodium tungstate 5%
Sodium molybdate 5%
Nitro malonic acid 8%
Hydroxy ethylene diphosphonic acid 20%
1-hydroxy ethylidene-1,1-diphosphonic acid 4%
Surplus is water.
Embodiment 2
A kind of low-phosphorus antiincrustation corrosion inhibitor, is made up of following component by weight percentage:
Poly-aspartate 11.5%
Sodium tungstate 6.5%
Sodium molybdate 6.5%
Nitro malonic acid 11.5%
Hydroxy ethylene diphosphonic acid 25%
1-hydroxy ethylidene-1,1-diphosphonic acid 5.5%
Surplus is water.
Embodiment 3
A kind of low-phosphorus antiincrustation corrosion inhibitor, is made up of following component by weight percentage:
Poly-aspartate 15%
Sodium tungstate 8%
Sodium molybdate 8%
Nitro malonic acid 15%
Hydroxy ethylene diphosphonic acid 30%
1-hydroxy ethylidene-1,1-diphosphonic acid 7%
Surplus is water.
Former water calcium hardness (with calcium carbonate) 300mg/L, add the anti-incrustation corrosion inhibitor of the embodiment of the present invention 2 preparation of 40mg/L, by detect heat exchanger monitor carbon steel experiment tube corrosion rate to be 0.01031mm/a, rustless steel experiment tube corrosion rate be 0.000112mm/a, pyrite experiment tube corrosion rate are 0.0000937mm/a, dirtiness resistance is/1.05 �� 10-4m2��K/W��
Claims (3)
1. a low-phosphorus antiincrustation corrosion inhibitor, it is characterised in that be made up of following component by weight percentage:
Poly-aspartate 8-15%
Tungstates 5-8%
Molybdate 5-8%
Nitro malonic acid 8-15%
Hydroxy ethylene diphosphonic acid 20-30%
1-hydroxy ethylidene-1,1-diphosphonic acid 4-7%
Surplus is water.
2. low-phosphorus antiincrustation corrosion inhibitor according to claim 1, it is characterised in that described tungstates is sodium tungstate.
3. low-phosphorus antiincrustation corrosion inhibitor according to claim 1, it is characterised in that described molybdate is sodium molybdate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254561.3A CN105645604A (en) | 2016-04-22 | 2016-04-22 | Low-phosphorus scale and corrosion inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254561.3A CN105645604A (en) | 2016-04-22 | 2016-04-22 | Low-phosphorus scale and corrosion inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105645604A true CN105645604A (en) | 2016-06-08 |
Family
ID=56497469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610254561.3A Pending CN105645604A (en) | 2016-04-22 | 2016-04-22 | Low-phosphorus scale and corrosion inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105645604A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646583A (en) * | 2020-05-15 | 2020-09-11 | 大唐东北电力试验研究院有限公司 | Low-phosphorus scale and corrosion inhibitor for reclaimed water reuse |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5788857A (en) * | 1996-10-23 | 1998-08-04 | Nalco Chemical Company | Hydroxyimino alkylene phosphonic acids for corrosion and scale inhibition in aqueous systems |
| WO2000044677A1 (en) * | 1999-01-28 | 2000-08-03 | Ashland Inc. | Scale and/or corrosion inhibiting composition |
| CN1958848A (en) * | 2005-10-31 | 2007-05-09 | 中国石油化工股份有限公司 | Method for restraining corrosion by circulating cooling water of containing sulphur |
| CN101077811A (en) * | 2007-04-20 | 2007-11-28 | 上海电力学院 | Low-phosphorus scale and corrosion inhibitor used for stainless steel tube steam condenser |
| CN102730848A (en) * | 2011-04-02 | 2012-10-17 | 中国石油化工股份有限公司 | Composite anti-incrustation corrosion inhibiter and its application in water treatment |
| CN103496794A (en) * | 2013-09-26 | 2014-01-08 | 广东省石油化工研究院 | Corrosion and scale inhibitor for treating circulating cooling water |
| CN103641244A (en) * | 2013-12-23 | 2014-03-19 | 河南省科学院能源研究所有限公司 | Low-phosphorous multifunctional molybdate corrosion inhibitor and preparation method thereof |
| CN104556420A (en) * | 2013-10-12 | 2015-04-29 | 中国石油化工股份有限公司 | Non-phosphorus composite corrosion and scale inhibitor and preparation method thereof, as well as corrosion and scale inhibition method of circulating cooling water |
-
2016
- 2016-04-22 CN CN201610254561.3A patent/CN105645604A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5788857A (en) * | 1996-10-23 | 1998-08-04 | Nalco Chemical Company | Hydroxyimino alkylene phosphonic acids for corrosion and scale inhibition in aqueous systems |
| WO2000044677A1 (en) * | 1999-01-28 | 2000-08-03 | Ashland Inc. | Scale and/or corrosion inhibiting composition |
| CN1958848A (en) * | 2005-10-31 | 2007-05-09 | 中国石油化工股份有限公司 | Method for restraining corrosion by circulating cooling water of containing sulphur |
| CN101077811A (en) * | 2007-04-20 | 2007-11-28 | 上海电力学院 | Low-phosphorus scale and corrosion inhibitor used for stainless steel tube steam condenser |
| CN102730848A (en) * | 2011-04-02 | 2012-10-17 | 中国石油化工股份有限公司 | Composite anti-incrustation corrosion inhibiter and its application in water treatment |
| CN103496794A (en) * | 2013-09-26 | 2014-01-08 | 广东省石油化工研究院 | Corrosion and scale inhibitor for treating circulating cooling water |
| CN104556420A (en) * | 2013-10-12 | 2015-04-29 | 中国石油化工股份有限公司 | Non-phosphorus composite corrosion and scale inhibitor and preparation method thereof, as well as corrosion and scale inhibition method of circulating cooling water |
| CN103641244A (en) * | 2013-12-23 | 2014-03-19 | 河南省科学院能源研究所有限公司 | Low-phosphorous multifunctional molybdate corrosion inhibitor and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 于静敏，等: "海水中碳钢钨系复合缓蚀剂的研究", <<材料保护>> * |
| 汪树清等: "羟基乙叉二膦酸的制备", 《茂名学院学报》 * |
| 蒋拥华等: "羟基亚乙基二膦酸的合成", <<化学与生物工程>> * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646583A (en) * | 2020-05-15 | 2020-09-11 | 大唐东北电力试验研究院有限公司 | Low-phosphorus scale and corrosion inhibitor for reclaimed water reuse |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160608 |