CN100371499C - Process for preparing composite corrosion inhibitor for copper nickel alloy in sea water - Google Patents
Process for preparing composite corrosion inhibitor for copper nickel alloy in sea water Download PDFInfo
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- CN100371499C CN100371499C CNB2005100437870A CN200510043787A CN100371499C CN 100371499 C CN100371499 C CN 100371499C CN B2005100437870 A CNB2005100437870 A CN B2005100437870A CN 200510043787 A CN200510043787 A CN 200510043787A CN 100371499 C CN100371499 C CN 100371499C
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- inhibiter
- sodium
- corrosion inhibitor
- copper nickel
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- 230000007797 corrosion Effects 0.000 title claims abstract description 19
- 238000005260 corrosion Methods 0.000 title claims abstract description 19
- 229910000570 Cupronickel Inorganic materials 0.000 title claims abstract description 15
- 239000013535 sea water Substances 0.000 title claims abstract description 15
- 239000003112 inhibitor Substances 0.000 title claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 9
- 239000000956 alloy Substances 0.000 title claims abstract description 9
- 239000002131 composite material Substances 0.000 title claims abstract description 9
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims abstract description 11
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims abstract description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 11
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012153 distilled water Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 claims abstract description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 10
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 10
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 10
- 229960001763 zinc sulfate Drugs 0.000 claims description 10
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 10
- 239000003814 drug Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 5
- -1 Sunmorl N 60S Chemical compound 0.000 claims description 2
- 231100000053 low toxicity Toxicity 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000000813 microbial effect Effects 0.000 abstract description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 2
- 229910052708 sodium Inorganic materials 0.000 abstract 2
- 239000011734 sodium Substances 0.000 abstract 2
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 abstract 1
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000005536 corrosion prevention Methods 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 239000000176 sodium gluconate Substances 0.000 abstract 1
- 235000012207 sodium gluconate Nutrition 0.000 abstract 1
- 229940005574 sodium gluconate Drugs 0.000 abstract 1
- 235000015393 sodium molybdate Nutrition 0.000 abstract 1
- 239000011684 sodium molybdate Substances 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- 235000009529 zinc sulphate Nutrition 0.000 abstract 1
- 239000011686 zinc sulphate Substances 0.000 abstract 1
- 241000894006 Bacteria Species 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 6
- 229910021653 sulphate ion Inorganic materials 0.000 description 6
- 230000005764 inhibitory process Effects 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000002147 killing effect Effects 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910002482 Cu–Ni Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 231100000027 toxicology Toxicity 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 229940000489 arsenate Drugs 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011005 laboratory method Methods 0.000 description 1
- 231100000636 lethal dose Toxicity 0.000 description 1
- 150000002730 mercury Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229940071182 stannate Drugs 0.000 description 1
- 125000005402 stannate group Chemical group 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000820 toxicity test Toxicity 0.000 description 1
- 238000009602 toxicology test Methods 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The present invention relates to a process for preparing composite corrosion inhibitor for copper nickel alloys in sea water, wherein corrosion inhibitor comprises (by mass percent) 15 to 35 percent of benzimidazole, 1 to 2 percent of zinc sulphate, 35 to 60 percent of sodium molybdate, 7 to 15 percent of sodium silicate, 7 to 14 percent of sodium gluconate, 2 to 4 percent of sodium hexametahposphate and 2 to 4 percent of sodium bisilicate which are weighed according to proportion and are orderly dissolved by stirring by making use of distilled water as solvent. The present invention has obvious effect on inhibiting the corrosion of copper nickel alloys in sea water, has the advantages of low toxicity, less degradation and no environmental pollution and can be used for the corrosion prevention of copper nickel alloys in microbial environments.
Description
Technical field:
The present invention relates to a kind of preparation method of composite corrosion inhibitor, particularly a kind of at the preparation method of the cupronickel that in briny environment, uses with inhibiter, belong to the corrosion and protection field.
Background technology:
Cupronickel has excellent conduction, heat conductivility, is easy to machine-shaping, thereby is widely used in the salt water cooling system of naval vessel, Coastal Power Plant etc.Adding inhibiter is the main means of cooling water system being carried out corrosion protection.Existing inhibiter mainly is applied in the cooling system of fresh water, because sea water salinity is higher, ion in the seawater reacts with the inhibiter component easily and sedimentation causes inefficacy, therefore existing fresh water inhibiter can not directly apply in the salt water cooling system, must add stablizer etc. simultaneously and just can be applied in the briny environment.Along with the reinforcement of environmental consciousness and awareness of safety, many inorganic inhibitors poisonous, harmful, contaminate environment will be limited and ban use of, as nitrite, phosphoric acid salt, arsenate, stannate, chromic salt, mercury salt etc.In addition, in cooling water system, often there is microorganism to exist, therefore requires inhibiter can have certain sterilizing function, be not degraded by microorganisms.Mainly concentrate on the inhibiter that uses in acidic medium and the fresh water about copper and copper alloy with inhibiter research for a long time.Lack efficient, low toxicity inhibiter in the market at the protection cupronickel that in briny environment, uses.
Summary of the invention:
The objective of the invention is to overcome the shortcoming of prior art, seek a kind of cupronickel of in briny environment, using with efficient, low toxicity, be not degraded by microorganisms, the preparation method of inhibiter free from environmental pollution.
In order to realize the foregoing invention purpose, the present invention selects nontoxic, harmless medicament is as the composite component of inhibiter.According to synergy between each medicament and complementary principle, carry out composite.By weightless test, be index with the corrosion inhibition rate, develop efficient, the low toxicity inhibiter of protection cupronickel in the briny environment.
The mass percent of each component of inhibiter of the present invention is: benzoglyoxaline 15-35%, zinc sulfate 1-2%, Sodium orthomolybdate 35-60%, water glass 7-15%, Sunmorl N 60S 7-14%, Sodium hexametaphosphate 99 2-4%, Starso 2-4%.
Preparation according to the following steps: take by weighing each component in proportion, with distilled water as solvent, on one side stir, add benzoglyoxaline, zinc sulfate, Sodium orthomolybdate, water glass, Sunmorl N 60S, Sodium hexametaphosphate 99, Starso on one side sequentially successively and make its dissolving.To treat to add a kind of medicine down again after medicine dissolves fully at every turn.Solvent load in the inhibiter is to add 300mg inhibiter mixture in one liter of distilled water.
Inhibiter of the present invention surpasses 90% to the corrosion inhibition rate of cupronickel B10 in the seawater, and the corrosion inhibition rate of cupronickel B30 in the seawater is surpassed 85%, and it is remarkable that experiment shows that this invention product suppresses the corrosive effect of cupronickel in seawater; Show that through the animal toxicology test product of the present invention is the low toxicity inhibiter; Inhibiter of the present invention can reach more than 88% the killing rate of sulphate reducing bacteria (SRB).
Specific embodiments:
Embodiment 1:
The prescription of inhibiter consists of (mass percent): benzoglyoxaline 30%, zinc sulfate 1%, Sodium orthomolybdate 39%, water glass 15%, Sunmorl N 60S 10%, Sodium hexametaphosphate 99 2%, Starso 3%.
Accurately take by weighing benzoglyoxaline 90mg according to the above ratio, zinc sulfate 3mg, Sodium orthomolybdate 117mg, water glass 45mg, Sunmorl N 60S 30mg, Sodium hexametaphosphate 99 6mg, Starso 9mg.Stir on the limit, and the limit joins above-mentioned medicament sequentially successively to dissolve in one liter of distilled water and promptly obtains inhibiter of the present invention.
Embodiment 2:
The prescription of inhibiter consists of (mass percent): benzoglyoxaline 35%, zinc sulfate 2%, Sodium orthomolybdate 41%, water glass 7%, Sunmorl N 60S 7%, Sodium hexametaphosphate 99 4%, Starso 4%.
Accurately take by weighing benzoglyoxaline 105mg according to the above ratio, zinc sulfate 6mg, Sodium orthomolybdate 123mg, water glass 21mg, Sunmorl N 60S 21mg, Sodium hexametaphosphate 99 12mg, Starso 12mg.Stir on the limit, and the limit joins above-mentioned medicament sequentially successively to dissolve in one liter of distilled water and promptly obtains inhibiter of the present invention.
Embodiment 3:
The prescription of inhibiter consists of (mass percent): benzoglyoxaline 15%, zinc sulfate 2%, Sodium orthomolybdate 53%, water glass 10%, Sunmorl N 60S 14%, Sodium hexametaphosphate 99 4%, Starso 2%.
Accurately take by weighing benzoglyoxaline 45mg according to the above ratio, zinc sulfate 6mg, Sodium orthomolybdate 159mg, water glass 30mg, Sunmorl N 60S 42mg, Sodium hexametaphosphate 99 12mg, Starso 6mg.Stir on the limit, and the limit joins above-mentioned medicament sequentially successively to dissolve in one liter of distilled water and promptly obtains inhibiter of the present invention.
Inhibiter of the present invention is studied the corrosion mitigating effect of B10: the sample that Cu-Ni alloy B 10 is processed into 40mm * 50mm * 3mm.Sample is polished step by step to No. 800 waterproof abrasive papers, uses the dehydrated alcohol degreasing, and oven dry is weighed.Adopting hanging slice method, is contrast with pure seawater, and the B10 test piece is statically placed in respectively in the inhibiter that embodiment 1, embodiment 2, embodiment 3 make, leave standstill 33 days after, be 50% hydrochloric acid cleaning with volume percent, oven dry is weighed.Calculate corrosion inhibition rate and be respectively 90.8%, 90.1%, 90.5%.
Inhibiter of the present invention is studied the corrosion mitigating effect of B30: the sample that Cu-Ni alloy B 30 is processed into 40mm * 50mm * 3mm.Sample after No. 800 waterproof abrasive paper is polished step by step, is used the dehydrated alcohol degreasing through 400,600, and oven dry is weighed.Adopting hanging slice method, is contrast with pure seawater, and the B30 test piece is statically placed in respectively in the inhibiter that embodiment 1, embodiment 2, embodiment 3 make, leave standstill 33 days after, be 50% hydrochloric acid cleaning with volume percent, oven dry is weighed.Calculate corrosion inhibition rate and be respectively 85.6%, 85.2%, 85.3%.
The toxicity research of inhibiter of the present invention: the inhibiter that makes is done the animal toxicology experiment.Toxicology detects and shows its big white mouse per os medial lethal dose LD50＞4000mg/Kg, thereby illustrates that this inhibiter is the low toxicity prescription.
Inhibiter of the present invention is studied the killing action of sulphate reducing bacteria: because inhibiter of the present invention is to be used in the microbial environment, therefore require it not to be degraded by microorganisms.Particularly in seawater, there is a large amount of sulphate reducing bacterias, so require seawater sulphate reducing bacteria preferably to be had certain bactericidal properties with corrosion inhibitor formula.Under 30 ℃, adopt suspension quantitative sterilization laboratory method to measure the killing rate of inhibiter to the slow former bacterium of vitriol, test-results shows that the present invention reaches more than 88.1% the killing rate of sulphate reducing bacteria.The substratum of sulphate reducing bacteria adopts Postgate C substratum.
Claims (2)
1. the preparation method of composite corrosion inhibitor for copper nickel alloy in the seawater, the mass percent that it is characterized in that each component of inhibiter is benzoglyoxaline 15-35%, zinc sulfate 1-2%, Sodium orthomolybdate 35-60%, water glass 7-15%, Sunmorl N 60S 7-14%, Sodium hexametaphosphate 99 2-4%, Starso 2-4%; Take by weighing each component in proportion, with distilled water as solvent, on one side stir, add benzoglyoxaline, zinc sulfate, Sodium orthomolybdate, water glass, Sunmorl N 60S, Sodium hexametaphosphate 99, Starso on one side sequentially successively and make its dissolving; To treat to add a kind of medicine down again after medicine dissolves fully at every turn.
2. the preparation method of composite corrosion inhibitor for copper nickel alloy in the seawater according to claim 1 is characterized in that the solvent load in the inhibiter is to add the 300mg composite corrosion inhibitor in one liter of distilled water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100437870A CN100371499C (en) | 2005-06-14 | 2005-06-14 | Process for preparing composite corrosion inhibitor for copper nickel alloy in sea water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100437870A CN100371499C (en) | 2005-06-14 | 2005-06-14 | Process for preparing composite corrosion inhibitor for copper nickel alloy in sea water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1880505A CN1880505A (en) | 2006-12-20 |
| CN100371499C true CN100371499C (en) | 2008-02-27 |
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| CNB2005100437870A Expired - Fee Related CN100371499C (en) | 2005-06-14 | 2005-06-14 | Process for preparing composite corrosion inhibitor for copper nickel alloy in sea water |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11572628B2 (en) | 2018-01-03 | 2023-02-07 | Ecolab Usa Inc. | Process and method for reducing metal corrosion in water |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705489B (en) * | 2009-11-20 | 2011-02-16 | 青岛双瑞防腐防污工程有限公司 | Corrosion inhibitor of level I reverse osmosis water for sea water desalinization |
| CN101974746B (en) * | 2010-09-02 | 2012-01-25 | 北京科技大学 | Method for passivating surface of permalloy online |
| CN102828187B (en) * | 2012-09-20 | 2014-08-13 | 昌邑市龙港无机硅有限公司 | Novel antirust agent for marine machinery and method for preparing same |
| CN104372346A (en) * | 2014-11-11 | 2015-02-25 | 华能国际电力股份有限公司玉环电厂 | Corrosion inhibitor formula of reverse osmosis seawater desalinated water and use method of corrosion inhibitor formula |
| CN112725806B (en) * | 2020-12-29 | 2023-03-21 | 宁德师范学院 | Neodymium-iron-boron composite corrosion inhibitor and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224079A (en) * | 1998-01-22 | 1999-07-28 | 中国科学院福建物质结构研究所二部 | Corrosion inhibitor for inhibiting corrosion of iron and steel in sea water |
| CN1424435A (en) * | 2002-12-20 | 2003-06-18 | 上海电力学院 | Composite corrosion inhibitor containg mercapto-heterocyclic compound and alkali metal iodide |
-
2005
- 2005-06-14 CN CNB2005100437870A patent/CN100371499C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224079A (en) * | 1998-01-22 | 1999-07-28 | 中国科学院福建物质结构研究所二部 | Corrosion inhibitor for inhibiting corrosion of iron and steel in sea water |
| CN1424435A (en) * | 2002-12-20 | 2003-06-18 | 上海电力学院 | Composite corrosion inhibitor containg mercapto-heterocyclic compound and alkali metal iodide |
Non-Patent Citations (4)
| Title |
|---|
| 一种海水缓蚀剂缓蚀行为的研究. 于辉，吴建华，钱建华等.中国腐蚀与防护学报，第23卷第5期. 2003 * |
| 几种缓蚀剂对低合金钢在海水中的缓蚀行为的研究. 黄洁，顾桂松.海军工程学院学报，第无卷第4期. 1997 * |
| 海水介质中缓蚀剂研究的回顾和展望. 杜敏，高荣杰，公萍.材料保护，第35卷第3期. 2002 * |
| 缓蚀剂的研究与进展. 杨雪莲，常青.甘肃科技，第20卷第1期. 2004 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11572628B2 (en) | 2018-01-03 | 2023-02-07 | Ecolab Usa Inc. | Process and method for reducing metal corrosion in water |
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| CN1880505A (en) | 2006-12-20 |
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Assignee: Qingdao Sunrui Corrosion and Fouling Control Company Assignor: No.725 Inst. China Shipping Heavy Industry Group Corp. Contract fulfillment period: 2008.8.28 to 2018.8.27 contract change Contract record no.: 2008370000078 Denomination of invention: Process for preparing composite corrosion inhibitor for copper nickel alloy in sea water Granted publication date: 20080227 License type: Exclusive license Record date: 20081031 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.28 TO 2018.8.27; CHANGE OF CONTRACT Name of requester: QINGDAO SHUANGRUI CORROSION PROTECTION ANTIFOULING Effective date: 20081031 |
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