CN102583785B - Circulating cooling water corrosion inhibitor, and preparation and application thereof - Google Patents
Circulating cooling water corrosion inhibitor, and preparation and application thereof Download PDFInfo
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- CN102583785B CN102583785B CN 201210024716 CN201210024716A CN102583785B CN 102583785 B CN102583785 B CN 102583785B CN 201210024716 CN201210024716 CN 201210024716 CN 201210024716 A CN201210024716 A CN 201210024716A CN 102583785 B CN102583785 B CN 102583785B
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Abstract
The invention discloses a circulating cooling water corrosion inhibitor, and the preparation and the application thereof. The circulating cooling water corrosion inhibitor comprises following components by mass percentage: 5 to 12 percent of N, N-bis phosphonyl methyl aspartic acid, 5 to 10 percent of polyethylene polyamine, 2 to 5 percent of octadecylamine, 2 to 5 percent of acrylic acid-acrylate-sulfonate terpolymer, 0.5 to 2.5 percent of diethylene triamine pentamethylene phosphonic acid, 0.5 to 2.5 percent of 2-phosphonobutane-1,2,4-tricarboxylic acid, 0.5 to 1.5 percent of tdlyltriazole, 0.5 to 1.5 percent of N-alkyl amino-2-perfluoroalkyl imidazoline quaternary ammonium salt, 0.5 to 1.5 percent of sodium alginate, 4 to 6 percent of sodium chromate, 0.5 to 3 percent of zinc chloride and the rest percent of water. The circulating cooling water corrosion inhibitor disclosed by the invention belongs to environmentally-friendly products, achieves a good corrosion inhibition effect, has a high anti-calcium-carbonate rate and can be used for corrosion inhibition treatment of a closed type circulating water system.
Description
Technical field
The present invention relates to a kind of circulating cooling water corrosion inhibitor and preparation and application thereof.
Background technology
The mankind's development and progress is the environment of depending on for existence take natural resources and the mankind as the basis.China's Freshwater resources are abundanter, occupy the 5th, the world.But per capita resources occupies the 18, the world.Therefore water resources is not rich.Along with growth and the economic fast development of China's population, limited water resources is shorter.The water resource pollution of China is also very serious.From national situation, urban water shortage is serious at present, has caused serious financial loss and social and environmental problems.The lack of water city distributes and is spread to the whole nation gradually by North China, northeast, the Northwest and the coastal eastern region of concentrating at present.
Therefore water saving, improvement sewage and mining new source of water have the effect of no less important.The most important thing is process water in town water.In process water, the consumption of water coolant ranks first.Therefore saving water coolant becomes primary target.The main method of saving water coolant is to take recirculated cooling water and improve cycles of concentration.But the harmful ion composition after the employing recirculated cooling water in water increases, and brings again a large amount of dissolved oxygens, dust and bacterium from cooling tower into, and water quality is degenerated, so that brings the problems such as corrosion and scaling, bacterium algae and foundry loam to cooling water system.Greatly developing Water Treatment Chemicals plays an important role to water saving, improvement sewage.Water conditioner be in process water, domestic water, wastewater treatment process the chemical agent that must use.Use through these chemical agents makes water reach certain specification of quality.The Main Function of water conditioner is the formation of controlling incrustation scale, mud, reduces foam, reduces the corrosion of the material that contact with water, and except suspended solids and the toxic substance in anhydrating, deodorization and discoloration softens with stabilizing water quality etc.Therefore, water conditioner can be divided into the four main medicaments of class.Be inhibiter, Scale inhibitors, sterilant and flocculation agent.China's water conditioner just draws attention after introducing large scale fertilizer plant the seventies and progressively grows up.After this developed a series of water conditioner.
Summary of the invention
In order to solve the prior art above shortcomings, one of technical problem to be solved by this invention is to provide a kind of circulating cooling water corrosion inhibitor.
Two of technical problem to be solved by this invention is to provide the preparation method of above-mentioned circulating cooling water corrosion inhibitor.
Three of technical problem to be solved by this invention is to provide the application of above-mentioned circulating cooling water corrosion inhibitor.
Technical scheme of the present invention is achieved in that
A kind of circulating cooling water corrosion inhibitor is made of by mass percentage following component:
N, the two (phosphonomethyl) aspartic acid 5-12% of N-;
Polyethylene polyamine 5-10%;
Octadecylamine 2-5%;
Vinylformic acid-acrylate-sulfonate terpolymer 2-5%;
Diethylene triamine pentamethylene phosphonic 0.5-2.5%;
2-phosphonate group-1,2,4-butane tricarboxylate 0.5-2.5%;
Tolyltriazole 0.5-1.5%;
N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt 0.5-1.5%;
Sodium alginate 0.5-1.5%;
Sodium chromate 4-6%;
Zinc chloride 0.5-3%;
Surplus is water.
The present invention also provides the preparation method of above-mentioned circulating cooling water corrosion inhibitor; heat water to 40-60 ℃; again with N; the two (phosphonomethyl) aspartic acids of N-, polyethylene polyamine, octadecylamine, vinylformic acid-acrylate-sulfonate terpolymer, diethylene triamine pentamethylene phosphonic, 2-phosphonate group-1; 2; 4-butane tricarboxylate, tolyltriazole, N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt, sodium alginate, Sodium chromate and zinc chloride are added to the water; mix, can make circulating cooling water corrosion inhibitor of the present invention.
The present invention also provide above-mentioned circulating cooling water corrosion inhibitor purposes, the inhibition that can be used for the Closed Cycle water system is processed.
Preferably,
Described Closed Cycle water system comprises production labor skill cooling water system, central air-conditioning medium water system and the system take hot water as medium.
Described production labor skill cooling water system comprises that production in automobile industry is with closed process cooling water system.
Further, the using method of described closed circulating water corrosion inhibitor is: the above-mentioned circulating cooling water corrosion inhibitor that adds 200-400mg/l in closed circulating water.
With respect to prior art, beneficial effect of the present invention is embodied as:
(1) the present invention's most polymer raw materials used are the biodegradable product, belong to environmental friendly product;
(2) can give good protection to iron and steel, copper, zinc, aluminium and other alloys thereof;
(3) applicable pH value scope very wide (pH=6-11);
(4) corrosion mitigating effect is good, and resistance calcium carbonate rate is high.
Embodiment
Embodiment 1
Raw material is prepared:
Take 100 kilograms of raw materials, wherein:
N, 5 kilograms of the two (phosphonomethyl) aspartic acids of N-;
10 kilograms of polyethylene polyamines;
2 kilograms of octadecylamines;
Vinylformic acid-acrylate-5 kilograms of sulfonate terpolymers;
0.5 kilogram of diethylene triamine pentamethylene phosphonic;
2-phosphonate group-1,2,2.5 kilograms of 4-butane tricarboxylates;
0.5 kilogram of tolyltriazole;
1.5 kilograms of N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salts;
0.5 kilogram of sodium alginate;
6 kilograms of Sodium chromates;
0.5 kilogram of zinc chloride.
Surplus is water.
Be water and N; the two (phosphonomethyl) aspartic acids of N-, polyethylene polyamine, octadecylamine, vinylformic acid-acrylate-sulfonate terpolymer, diethylene triamine pentamethylene phosphonic, 2-phosphonate group-1; the gross weight of 2,4-butane tricarboxylate, tolyltriazole, N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt, sodium alginate, Sodium chromate and zinc chloride is 100 kilograms.
Heat water to 40-60 ℃; again with N; the two (phosphonomethyl) aspartic acids of N-, polyethylene polyamine, octadecylamine, vinylformic acid-acrylate-sulfonate terpolymer, diethylene triamine pentamethylene phosphonic, 2-phosphonate group-1; 2; 4-butane tricarboxylate, tolyltriazole, N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt, sodium alginate, Sodium chromate and zinc chloride are added to the water; mix, can make circulating cooling water corrosion inhibitor of the present invention.
The inhibition that can be used for the Closed Cycle water system of circulating cooling water corrosion inhibitor of the present invention is processed.Specifically comprise production labor skill cooling water system, central air-conditioning medium water system and the system take hot water as medium.Further, described production labor skill cooling water system comprises that production in automobile industry is with closed process cooling water system.
The using method of closed circulating water corrosion inhibitor of the present invention is: the above-mentioned circulating cooling water corrosion inhibitor that adds 200-400mg/l in closed circulating water.
Amount with the 400mg/l water coolant adds automotive body welding technique Enclosed Type Circulating Cooling Water System, conductivity contribution: 106uS/cm, as follows with reference to the inhibiter standard analysis result of the water conditioner in " mensuration of GB/T18175-2000 water conditioner corrosion inhibition ": the carbon steel corrosion inhibition rate reaches 98.3%.Be shown as efficient inhibiter.
Carried out the static-state scale inhibition test according to State Standard of the People's Republic of China GB/T16632-2008 " the mensuration tosca method of water treatment scale performance ".
Test apparatus and equipment: porous thermostat water bath.
The preparation of test solution: add 250mL water in the 500mL volumetric flask, add the calcium chloride standardized solution of certain volume with drop-burette, the amount that makes calcium ion is 120mg.Add 5.0mL water conditioner sample solution with transfer pipet, shake up.Then add the 20mL borax buffer solution, shake up.The sodium bicarbonate standardized solution that slowly adds certain volume with drop-burette, making the amount of bicarbonate ion is 366mg, is diluted with water to scale, shakes up.Do simultaneously blank test.
Reagent: potassium hydroxide solution: 200g/l, borax buffer solution: PH ≈ 9, sodium bicarbonate standardized solution: 1mL is equivalent to 18.3mg HCO
3 -, the calcium chloride standardized solution: 1mL contains 6.0mgCa
2+, disodium ethylene diamine tetraacetate standard titration solution: 0.01mol/l, calcium carboxylate indicator.
Test result: static-state scale inhibition test resistance calcium carbonate rate 95.8%.
Embodiment 2
Raw material is prepared:
Take 100 kilograms of raw materials, wherein:
N, 12 kilograms of the two (phosphonomethyl) aspartic acids of N-;
5 kilograms of polyethylene polyamines;
5 kilograms of octadecylamines;
Vinylformic acid-acrylate-2 kilograms of sulfonate terpolymers;
2.5 kilograms of diethylene triamine pentamethylene phosphonics;
2-phosphonate group-1,2,0.5 kilogram of 4-butane tricarboxylate;
1.5 kilograms of tolyltriazole;
0.5 kilogram of N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt;
1.5 kilograms of sodium alginates;
4 kilograms of Sodium chromates;
3 kilograms of zinc chloride.
Surplus is water.
Be water and N; the two (phosphonomethyl) aspartic acids of N-, polyethylene polyamine, octadecylamine, vinylformic acid-acrylate-sulfonate terpolymer, diethylene triamine pentamethylene phosphonic, 2-phosphonate group-1; the gross weight of 2,4-butane tricarboxylate, tolyltriazole, N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt, sodium alginate, Sodium chromate and zinc chloride is 100 kilograms.
Heat water to 40-60 ℃; again with N; the two (phosphonomethyl) aspartic acids of N-, polyethylene polyamine, octadecylamine, vinylformic acid-acrylate-sulfonate terpolymer, diethylene triamine pentamethylene phosphonic, 2-phosphonate group-1; 2; 4-butane tricarboxylate, tolyltriazole, N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt, sodium alginate, Sodium chromate and zinc chloride are added to the water; mix, can make circulating cooling water corrosion inhibitor of the present invention.
The inhibition that can be used for the Closed Cycle water system of circulating cooling water corrosion inhibitor of the present invention is processed.Specifically comprise production labor skill cooling water system, central air-conditioning medium water system and the system take hot water as medium.Further, described production labor skill cooling water system comprises that production in automobile industry is with closed process cooling water system.
The using method of closed circulating water corrosion inhibitor of the present invention is: the above-mentioned circulating cooling water corrosion inhibitor that adds 200-400mg/l in closed circulating water.
Amount with the 200mg/l water coolant adds automotive body welding technique Enclosed Type Circulating Cooling Water System, conductivity contribution: 98uS/cm, as follows with reference to the inhibiter standard analysis result of the water conditioner in " mensuration of GB/T18175-2000 water conditioner corrosion inhibition ": the carbon steel corrosion inhibition rate reaches 97.6%.Be shown as efficient inhibiter.
Carried out the static-state scale inhibition test according to State Standard of the People's Republic of China GB/T16632-2008 " the mensuration tosca method of water treatment scale performance ".
Test result: static-state scale inhibition test resistance calcium carbonate rate 92.6%.
Claims (4)
1. a circulating cooling water corrosion inhibitor, is characterized in that, is comprised of by mass percentage following component:
N, the two (phosphonomethyl) aspartic acid 5-12% of N-;
Polyethylene polyamine 5-10%;
Octadecylamine 2-5%;
Vinylformic acid-acrylate-sulfonate terpolymer 2-5%;
Diethylene triamine pentamethylene phosphonic 0.5-2.5%;
2-phosphonate group-1,2,4-butane tricarboxylate 0.5-2.5%;
Tolyltriazole 0.5-1.5%;
N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt 0.5-1.5%;
Sodium alginate 0.5-1.5%;
Sodium chromate 4-6%;
Zinc chloride 0.5-3%;
Surplus is water;
Described circulating cooling water corrosion inhibitor adopts following method to be prepared from:
Heat water to 40-60 ℃; again with N; the two (phosphonomethyl) aspartic acids of N-, polyethylene polyamine, octadecylamine, vinylformic acid-acrylate-sulfonate terpolymer, diethylene triamine pentamethylene phosphonic, 2-phosphonate group-1; 2; 4-butane tricarboxylate, tolyltriazole, N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt, sodium alginate, Sodium chromate and zinc chloride are added to the water; mix, can make described circulating cooling water corrosion inhibitor.
2. the preparation method of circulating cooling water corrosion inhibitor as claimed in claim 1 is characterized in that:
Heat water to 40-60 ℃; again with N; the two (phosphonomethyl) aspartic acids of N-, polyethylene polyamine, octadecylamine, vinylformic acid-acrylate-sulfonate terpolymer, diethylene triamine pentamethylene phosphonic, 2-phosphonate group-1; 2; 4-butane tricarboxylate, tolyltriazole, N-alkylamino-2-perfluoroalkylimidazquaternary quaternary ammonium salt, sodium alginate, Sodium chromate and zinc chloride are added to the water; mix, can make described circulating cooling water corrosion inhibitor.
A circulating cooling water corrosion inhibitor as claimed in claim 1 purposes, it is characterized in that: described circulating cooling water corrosion inhibitor is used for the inhibition of Closed Cycle water system to be processed.
Circulating cooling water corrosion inhibitor as claimed in claim 3 purposes, it is characterized in that: described Closed Cycle water system comprises the production labor skill cooling water system central air-conditioning medium water system of unifying.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210024716 CN102583785B (en) | 2012-02-03 | 2012-02-03 | Circulating cooling water corrosion inhibitor, and preparation and application thereof |
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| CN 201210024716 CN102583785B (en) | 2012-02-03 | 2012-02-03 | Circulating cooling water corrosion inhibitor, and preparation and application thereof |
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| CN102583785B true CN102583785B (en) | 2013-05-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103172182B (en) * | 2013-03-15 | 2014-04-16 | 中冶建筑研究总院有限公司 | Scale-inhibition and dispersion synergist applied to high-temperature and high-pH value circulating water and preparation method thereof |
| CN103191646B (en) * | 2013-04-23 | 2015-08-12 | 济南鲁东环保科技有限公司 | A kind of without phosphorus Treated sewage reusing reverse osmosis membrane antisludging agent and preparation method thereof |
| CN103193330A (en) * | 2013-04-26 | 2013-07-10 | 王占军 | Water stabilizer and preparation method thereof |
| CN103641248B (en) * | 2013-12-27 | 2015-01-21 | 长沙矿冶研究院有限责任公司 | Composite scale and corrosion inhibitor and application thereof in water circulating cooling system |
| CN106854011B (en) * | 2016-12-21 | 2021-05-07 | 冯佳乐 | Oil extraction sewage treatment agent |
| CN114481140A (en) * | 2021-12-30 | 2022-05-13 | 上海丰信环保科技有限公司 | Circulating water corrosion inhibitor |
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| EP0672625A1 (en) * | 1994-03-14 | 1995-09-20 | Bayer Ag | Compound for water treatment with polyaspartic acid or a derivative thereof and phosphonic acid |
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