CN1068312A - Corrosion inhibiting antisludging agent for circularly-cooling sea water - Google Patents
Corrosion inhibiting antisludging agent for circularly-cooling sea water Download PDFInfo
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- CN1068312A CN1068312A CN 91104667 CN91104667A CN1068312A CN 1068312 A CN1068312 A CN 1068312A CN 91104667 CN91104667 CN 91104667 CN 91104667 A CN91104667 A CN 91104667A CN 1068312 A CN1068312 A CN 1068312A
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Abstract
The invention belongs to the corrosion inhibiting and descaling agent of making recirculated cooling water of seawater.Corrosion inhibiting and descaling agent of the present invention comprises poly carboxylic acid, organic phosphonate, organic sludge conditioning agent, nitrogen azole material, components such as poly-phosphate.The present invention is applicable to the system of making recirculated cooling water of seawater, particularly for the cooling system of carbon steel and copper material, has higher corrosion-mitigation scale-inhibition effect.
Description
The invention belongs to the water conditioner that industrial circulating cooling water is used, further say so with the corrosion inhibiting and descaling agent of seawater round-robin industrial colling.
Because saltiness height in the seawater have the ionic concn of corrodibility and fouling tendency far above general fresh water, and content of microorganisms is also high in the seawater, so, do recirculated cooling water with seawater, exist the serious burn into fouling and the problem of microorganism growth.Therefore, when doing recirculated cooling water with seawater replacement fresh water, the processing in fresh water has bigger difficulty.
Circularly-cooling sea water is handled, the same with the processing of fresh water recirculated cooling water, also must can play corrosion-mitigation scale-inhibition and the water treatment agent that suppresses microorganism growth, but need medicament that good performance is arranged toward wherein adding.Handle the water treatment agent of seawater, though at present existing bibliographical information often only limits to simple function.Perhaps only have corrosion inhibitive function or only have anti-soil dirt performance.The brine disposal medicament that has only a spot of document to mention to have inhibition, scale-inhibiting properties concurrently, and the inhibition of various material studied.(the American Exxon Research and Engineering Co. of U.S. Exxon company and Drew company, Drew Chemical Co.) at document " can control the new invention of brine cooling tower system problem " (An Tnnovative Approach to Controlling Salt Water Cooling Tower System Problems, Presented During Consion/78, March, 1978, Houston in Ameriea) report in, select carbon steel for use, copper, naval's copper, 304 stainless steels, monel metal 400, materials such as titanium material, control seawater cycles of concentration 1.5～2.0, the water treatment agent that adopts comprises poly-phosphate, organic phosphine, zinc chloride, anion superpolymer, the nonionic superpolymer, iron chelating agent and dispersion agent, components such as NaClO are tested.The water treatment agent of the document can play certain corrosion inhibition to above-mentioned several materials, but unsatisfactory, particularly to carbon steel material, and test gained data, corrosion rate is still very high, reaches 0.15 millimeter/year, and dosing is also big.
The present invention is directed to the existing problem of water treatment agent that present processing seawater is used, the corrosion inhibiting and descaling agent that provides a kind of double inhibition and scale-inhibiting properties to use in the circularly-cooling sea water of one.
The corrosion inhibiting and descaling agent that circularly-cooling sea water provided by the invention is used is a kind of compound medicament, and it can be adjusted within the specific limits according to the difference of water quality, material, to reach optimal treatment effect.Medicament provided by the present invention comprises 1. at least a polycarboxylic acid material, for example, polymaleic anhydride, vinylbenzene and copolymer-maleic anhydride, consumption is generally 9～30%; 2. at least a organic phosphate material, for example, Amino Trimethylene Phosphonic Acid (ATMP), ethylene diamine tetra methylene phosphonic acid (EDTMP), 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP), consumption is generally 25～36%; 3. at least a material that is referred to as organic sludge conditioning agent class, for example, polymethyl acrylic acid or its sodium salt, polyacrylic acid or its sodium salt, consumption is generally 4.5～22%.Different according to equipment material and water quality, medicament provided by the present invention also comprises nitrogen azole material, for example, and benzotriazole (BZT), mercaptobenzothiazole (MBT), consumption is generally 10～20%; Polymer phosphate salt material, for example, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, consumption is generally 30～40%; Zinc salt such as zinc sulfate, consumption is generally 3.0～6.0%; Surfactant-based material, for example, the quaternary ammonium salts material, as dimethylamine, epoxy chloropropane and dodecyl tertiary amine multipolymer, alkylphenol and oxyethane polycondensate, consumption is generally 10～30%.
Medicament provided by the present invention has higher inhibition and scale effect, can solve the etching problem that seawater is used as recirculated cooling water.Do industrial water coolant with seawater and solved coastland industrial cooling water problem in short supply.Seawater recycle and dosing are handled, to water saving, energy-conservation, protection environment, guarantee that all there is positive effect production safety aspect such as move, enhance productivity.The present invention is specially adapted to the various recirculating cooling water systems of making material of copper or carbon steel.
Example 1
Adopt naval's copper material to do corrosion test, 1.5 times of seawater cycles of concentration, 50 ℃, rotary hanging plate 96 hours, institute's with medicament is: polymaleic anhydride 28.6%, ATMP35.7%, sodium polymethacrylate 21.4%, MBT14.3% adds dose 7PPM.Recording the corrosion rate data through test is 0.0257 millimeter/year, and the data that Exxon and Drew company provide are 0.03 millimeter/year.
Example 2
Test conditions and material are with example 1, and institute's with medicament is: vinylbenzene and copolymer-maleic anhydride 28.6%, and HEDP35.7%, sodium polyacrylate 21.4%, BZT14.3%, adding dose is 7PPM, recording corrosion rate is 0.023 millimeter/year.
Example 3
Adopt carbon steel to adopt matter and do corrosion test, 1.5 times of seawater cycles of concentration, 50 ℃, rotary hanging plate, 96 hours, institute's with medicament is: polymaleic anhydride 9.4%, ATMP25.9%, sodium polymethacrylate 4.7%, tripoly phosphate sodium STPP 33%, zinc sulfate 3.3%, alkylphenol and oxyethane polycondensate 23.6%, adding dose is 21.2PPM.Recording the corrosion rate data through test is 0.028 millimeter/year, and the data that Exxon company and Drew company provide are 0.15 millimeter/year.
Example 4
Test conditions and material are with example 3, institute's with medicament is: vinylbenzene and copolymer-maleic anhydride 9.4%, HEDP25.6%, sodium polyacrylate 4.7%, Sodium hexametaphosphate 99 33%, zinc sulfate 3.3% dimethylamine, epoxy chloropropane and dodecyl tertiary amine multipolymer 23.1%, adding dose is 21.2PPM, recording the corrosion rate data is 0.025 millimeter/year.
Example 5
Antisludging test.Adopt the medicament and the concentration of example 1,, in 60 ℃ of water, kept 24 hours, kept 5 hours in 90 ℃ of water, record that the calcium retention rate is 100% in the water with static-state scale inhibition rate method.
Example 6
Adopt naval's copper material to do dynamic analog test, 1.5 times of seawater cycles of concentration, 61.5 ℃ of medium temperatures, import and export the water temperature atmosphere and be respectively 36 ℃, 42 ℃, move 170 hours, medicament and concentration are with example 1, recording the corrosion rate data is 0.028 millimeter/year, and the fouling resistance value is 0.51 * 10
-4Rice
2Hour ℃ of/kilocalorie.
Example 7
Adopt carbon steel material to do dynamic analog test, 1.5 times of seawater cycles of concentration, 100 ℃ of medium temperatures, import and export water temperature and be respectively 36 ℃, 42 ℃, move 170 hours, medicament and concentration are with example 3, record corrosion rate according to being 0.0103 millimeter/year, the fouling resistance value is 2.5 * 10
-4Rice
2Hour ℃ of/kilocalorie.
Claims (7)
1, the compound corrosion inhibiting and descaling agent of a kind of circularly-cooling sea water, comprising 1. at least a polycarboxylic acid material, consumption is 9～30%, 2. at least a organic phospho acid salt material, consumption is 25～36%, the 3. at least a material that is referred to as organic sludge conditioning agent, consumption is 4.5～22%, also comprises nitrogen azole material, and consumption is 10～20%, polymer phosphate salt material, consumption is 30～40%, and zinc sulfate, consumption are 3.0～6.0%, surfactant-based material, consumption are 10～30%.
2, a kind of corrosion inhibiting and descaling agent as claimed in claim 1, said poly carboxylic acid tear material is a polymaleic anhydride, vinylbenzene and copolymer-maleic anhydride.
3, a kind of corrosion inhibiting and descaling agent as claimed in claim 1, said organic phospho acid salt material is Amino Trimethylene Phosphonic Acid (ATMP), ethylene diamine tetra methylene phosphonic acid (EDTMP), 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP).
4, a kind of corrosion inhibiting and descaling agent as claimed in claim 1, said organic sludge conditioning agent is polymethyl acrylic acid or its sodium salt, polyacrylic acid or its sodium salt.
5, a kind of corrosion inhibiting and descaling agent as claimed in claim 1, said nitrogen azole material is benzotriazole (BZT), mercaptobenzothiazole (MBT).
6, a kind of corrosion inhibiting and descaling agent as claimed in claim 1, said polymeric phosphate is a tripoly phosphate sodium STPP, Sodium hexametaphosphate 99.
7, a kind of corrosion inhibiting and descaling agent as claimed in claim 1, said surfactant-based material are dimethylamine, epoxy chloropropane, dodecyl tertiary amine multipolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104667 CN1068312A (en) | 1991-07-09 | 1991-07-09 | Corrosion inhibiting antisludging agent for circularly-cooling sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104667 CN1068312A (en) | 1991-07-09 | 1991-07-09 | Corrosion inhibiting antisludging agent for circularly-cooling sea water |
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| Publication Number | Publication Date |
|---|---|
| CN1068312A true CN1068312A (en) | 1993-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 91104667 Pending CN1068312A (en) | 1991-07-09 | 1991-07-09 | Corrosion inhibiting antisludging agent for circularly-cooling sea water |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052763C (en) * | 1995-11-15 | 2000-05-24 | 首钢总公司 | Si Series corrosion inhibitor for soft water close circulation cooling system |
| CN100391860C (en) * | 2006-07-18 | 2008-06-04 | 武汉中新化工有限公司 | Method of biological inhibition using sea water cooling system |
| CN100424228C (en) * | 2006-01-14 | 2008-10-08 | 中国海洋大学 | Scale and corrosion inhibitor for inhibiting corrosion of carbon steel |
| CN100441526C (en) * | 2006-09-07 | 2008-12-10 | 武汉钢铁(集团)公司 | Long effective environmental protection type corrosion inhibitor for inclosed recirculated cooling water |
| CN100460564C (en) * | 2005-10-31 | 2009-02-11 | 中国石油化工股份有限公司 | Method for restraining corrosion by circulating cooling water of containing sulphur |
| CN101088933B (en) * | 2006-06-16 | 2010-10-27 | 南京理工大学 | Method of raising concentration multiple of circulating water system |
| CN101993685A (en) * | 2009-08-12 | 2011-03-30 | 中国石油天然气股份有限公司 | Composite scale inhibitor |
| CN102491542A (en) * | 2011-12-21 | 2012-06-13 | 新疆蓝利洁康生物科技有限公司 | Method for preparing corrosion and scale inhibitor |
| CN102674565A (en) * | 2012-05-16 | 2012-09-19 | 河北省科学院能源研究所 | Seawater corrosion inhibitor |
| CN102674566A (en) * | 2012-06-07 | 2012-09-19 | 刘梅英 | Low-phosphorous efficient corrosion and scale inhibitor |
| CN102712476A (en) * | 2009-09-25 | 2012-10-03 | 塞特克技术公司 | Preventing or reducing scale in wet-process phosphoric acid production |
| CN103708634A (en) * | 2013-12-09 | 2014-04-09 | 山东华亚环保科技有限公司 | Compound corrosion and scale inhibitor used for circulating cooling water |
| CN104326578A (en) * | 2014-10-14 | 2015-02-04 | 董升 | Chemical agent capable of completely recycling power plant wastewater into circulating cooling water and preparation method of chemical agent |
| CN104445561A (en) * | 2014-11-13 | 2015-03-25 | 无锡伊佩克科技有限公司 | Industrial wastewater treating agent |
| CN109502772A (en) * | 2017-09-14 | 2019-03-22 | 南京鑫豪高分子材料有限公司 | A kind of anti-corrosion, scale-inhibiting water stabilizer |
| CN110028170A (en) * | 2019-05-21 | 2019-07-19 | 四川文理学院 | A kind of efficient scale inhibitor and its application |
| CN110127871A (en) * | 2019-05-21 | 2019-08-16 | 四川文理学院 | A kind of Novel scale inhibitor and its application |
| CN112391633A (en) * | 2020-11-12 | 2021-02-23 | 威海翔泽新材料科技有限公司 | Corrosion inhibitor for cooling water of marine diesel engine and preparation method thereof |
| CN113667984A (en) * | 2020-05-13 | 2021-11-19 | 上海蓝浦清洗技术有限公司 | Corrosion inhibitor and pipeline corrosion inhibitor coating device |
| CN114539999A (en) * | 2022-02-24 | 2022-05-27 | 沧州中润化学助剂有限公司 | Acidizing corrosion inhibitor for acidizing and plugging removal of stratum and preparation method thereof |
-
1991
- 1991-07-09 CN CN 91104667 patent/CN1068312A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052763C (en) * | 1995-11-15 | 2000-05-24 | 首钢总公司 | Si Series corrosion inhibitor for soft water close circulation cooling system |
| CN100460564C (en) * | 2005-10-31 | 2009-02-11 | 中国石油化工股份有限公司 | Method for restraining corrosion by circulating cooling water of containing sulphur |
| CN100424228C (en) * | 2006-01-14 | 2008-10-08 | 中国海洋大学 | Scale and corrosion inhibitor for inhibiting corrosion of carbon steel |
| CN101088933B (en) * | 2006-06-16 | 2010-10-27 | 南京理工大学 | Method of raising concentration multiple of circulating water system |
| CN100391860C (en) * | 2006-07-18 | 2008-06-04 | 武汉中新化工有限公司 | Method of biological inhibition using sea water cooling system |
| CN100441526C (en) * | 2006-09-07 | 2008-12-10 | 武汉钢铁(集团)公司 | Long effective environmental protection type corrosion inhibitor for inclosed recirculated cooling water |
| CN101993685A (en) * | 2009-08-12 | 2011-03-30 | 中国石油天然气股份有限公司 | Composite scale inhibitor |
| CN102712476A (en) * | 2009-09-25 | 2012-10-03 | 塞特克技术公司 | Preventing or reducing scale in wet-process phosphoric acid production |
| CN102491542A (en) * | 2011-12-21 | 2012-06-13 | 新疆蓝利洁康生物科技有限公司 | Method for preparing corrosion and scale inhibitor |
| CN102491542B (en) * | 2011-12-21 | 2013-05-29 | 孙寒月 | Method for preparing corrosion and scale inhibitor |
| CN102674565A (en) * | 2012-05-16 | 2012-09-19 | 河北省科学院能源研究所 | Seawater corrosion inhibitor |
| CN102674566A (en) * | 2012-06-07 | 2012-09-19 | 刘梅英 | Low-phosphorous efficient corrosion and scale inhibitor |
| CN103708634A (en) * | 2013-12-09 | 2014-04-09 | 山东华亚环保科技有限公司 | Compound corrosion and scale inhibitor used for circulating cooling water |
| CN104326578A (en) * | 2014-10-14 | 2015-02-04 | 董升 | Chemical agent capable of completely recycling power plant wastewater into circulating cooling water and preparation method of chemical agent |
| CN104445561A (en) * | 2014-11-13 | 2015-03-25 | 无锡伊佩克科技有限公司 | Industrial wastewater treating agent |
| CN109502772A (en) * | 2017-09-14 | 2019-03-22 | 南京鑫豪高分子材料有限公司 | A kind of anti-corrosion, scale-inhibiting water stabilizer |
| CN110028170A (en) * | 2019-05-21 | 2019-07-19 | 四川文理学院 | A kind of efficient scale inhibitor and its application |
| CN110127871A (en) * | 2019-05-21 | 2019-08-16 | 四川文理学院 | A kind of Novel scale inhibitor and its application |
| CN110028170B (en) * | 2019-05-21 | 2022-01-25 | 四川文理学院 | Efficient scale inhibitor and application thereof |
| CN113667984A (en) * | 2020-05-13 | 2021-11-19 | 上海蓝浦清洗技术有限公司 | Corrosion inhibitor and pipeline corrosion inhibitor coating device |
| CN113667984B (en) * | 2020-05-13 | 2023-08-22 | 上海蓝浦清洗技术有限公司 | Corrosion inhibitor and pipeline corrosion inhibitor film coating device |
| CN112391633A (en) * | 2020-11-12 | 2021-02-23 | 威海翔泽新材料科技有限公司 | Corrosion inhibitor for cooling water of marine diesel engine and preparation method thereof |
| CN112391633B (en) * | 2020-11-12 | 2022-07-29 | 威海翔泽新材料科技有限公司 | Corrosion inhibitor for cooling water of marine diesel engine and preparation method thereof |
| CN114539999A (en) * | 2022-02-24 | 2022-05-27 | 沧州中润化学助剂有限公司 | Acidizing corrosion inhibitor for acidizing and plugging removal of stratum and preparation method thereof |
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