CN103663741A - Corrosion and scale inhibitor for water circulation system of thermal power plant and preparation method - Google Patents
Corrosion and scale inhibitor for water circulation system of thermal power plant and preparation method Download PDFInfo
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- CN103663741A CN103663741A CN201310737770.XA CN201310737770A CN103663741A CN 103663741 A CN103663741 A CN 103663741A CN 201310737770 A CN201310737770 A CN 201310737770A CN 103663741 A CN103663741 A CN 103663741A
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Abstract
The invention discloses a corrosion and scale inhibitor for a water circulation system of a thermal power plant, and belongs to the technical field of treatment of industrial circulating cooling water. The corrosion and scale inhibitor consists of the following components in percentage by mass: 5-10 percent of edetic acid, 5-10 percent of polyamino polyether methylene phosphonae, 5-10 percent of hydroxy ethylidene diphosphonic acid, 10-15 percent of amino trimethylene phosphonic acid, 2-6 percent of diethylenetriamine penta(methylene phosphonic acid), 8-14 percent of hydrolytic polymaleic anhydride, 10-20 percent of polyacrylic acid, 4-8 percent of 2-mercaptobenzothiazole and the balance of industrial deionized water. The invention further discloses a preparation method of the corrosion and scale inhibitor for the water circulation system of the thermal power plant. The corrosion and scale inhibitor disclosed by the invention has good chelating and dispersing effects on calcium carbonate, calcium sulfate, calcium phosphate and the like in various types of water, has a corrosion inhibition effect on carbon steel and copper, and can form a protection layer on the inner wall of equipment to prevent the generation of water scales to a certain degree.
Description
Technical field
The present invention relates to a kind of corrosion inhibiting and descaling agent and preparation method, specifically relate to a kind of corrosion inhibiting and descaling agent for heat power plant's water circulation system and preparation method, belong to technology of industrial recirculating cooling water treatment field.
Background technology
Heat power plant is process water rich and influential family, its circulating cooling system water consumption accounts for the 70%-80% of total water amount, utilize reuse water as the make-up water source of its circulating cooling system, can greatly reduce the use at conventional water source, realize extensive water saving, therefore carry out recirculated cooling water work for the treatment of, can significantly reduce the cost of electricity-generating of Thermal Power Enterprises.
Corrosion inhibiting and descaling agent is a kind of water treatment agent that hydrologic cycle cooling system is conventional, be used for alleviating recirculated water for the corrosion and scaling of the equipment such as the water pump of circulating cooling system, pipeline, condenser, and then improve heat and power system operational efficiency, extension device work-ing life, improve the economic benefit of Thermal Power Enterprises.At present conventional corrosion inhibiting and descaling agent component is too single, and when regeneration water hardness, basicity, chloride ion content are higher, difficulty reaches good anticorrosion-antiscaling effect, cannot meet the requirement of circulating water system operation.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned defect, and a kind of corrosion inhibiting and descaling agent and preparation method that can adapt to heat power plant's water circulation system of multiple-quality water is provided.
In order to solve the problems of the technologies described above, the corrosion inhibiting and descaling agent for heat power plant's water circulation system provided by the invention, its component and quality percentage composition are as follows:
Ethylenediamine tetraacetic acid (EDTA): 5%～10%
Polyamino polyether methylene phosphoric acid: 5%～10%
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 5%～10%
Amino Trimethylene Phosphonic Acid: 10%～15%
Diethylene triamine pentamethylene phosphonic: 2%～6%
Hydrolytic polymaleic anhydride: 8%～14%
Polyacrylic acid: 10%～20%
2-mercaptobenzothiazole: 4～8%
Industry deionized water: surplus.
The present invention also provides a kind of preparation method of the corrosion inhibiting and descaling agent for heat power plant's water circulation system, comprises the following steps:
1), by described proportional quantity, take respectively ethylenediamine tetraacetic acid (EDTA), polyamino polyether methylene phosphoric acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, diethylene triamine pentamethylene phosphonic, hydrolytic polymaleic anhydride, polyacrylic acid and put into container and stir, make compound;
2), by described proportional quantity, taking respectively 2-mercaptobenzothiazole adds and within industrial deionized water for stirring 20-40 minute of described proportional quantity, makes the aqueous solution;
3), by step 1) compound made joins step 1) in the aqueous solution made, stirring heating, churning time is 40-60 minute, Heating temperature is 35-50 ℃, makes corrosion inhibiting and descaling agent.
Beneficial effect of the present invention is: corrosion inhibiting and descaling agent of the present invention all has good chelating dissemination and carbon steel, copper are had to good corrosion mitigating effect the calcium carbonate in all kinds of water, calcium sulfate, calcium phosphate etc., and can on equipment inner wall, form protective layer and stop to a certain extent incrustation scale to generate.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
Corrosion inhibiting and descaling agent for heat power plant's water circulation system of the present invention, its component and quality percentage composition are as follows:
Ethylenediamine tetraacetic acid (EDTA): 8%
Polyamino polyether methylene phosphoric acid: 8%
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 8%
Amino Trimethylene Phosphonic Acid: 12%
Diethylene triamine pentamethylene phosphonic: 4%
Hydrolytic polymaleic anhydride: 11%
Polyacrylic acid: 15%
2-mercaptobenzothiazole: 6%
Industry deionized water: surplus.
Preparation method for the corrosion inhibiting and descaling agent of heat power plant's water circulation system is as follows:
1), by described proportional quantity, take respectively ethylenediamine tetraacetic acid (EDTA), polyamino polyether methylene phosphoric acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, diethylene triamine pentamethylene phosphonic, hydrolytic polymaleic anhydride, polyacrylic acid and put into container and stir, make compound;
2), by described proportional quantity, taking respectively 2-mercaptobenzothiazole adds the industrial deionized water for stirring of described proportional quantity within 30 minutes, to make the aqueous solution;
3), by step 1) compound made joins step 1) in the aqueous solution made, stirring heating, churning time is 50 minutes, Heating temperature is 43 ℃, makes corrosion inhibiting and descaling agent.
Embodiment 2
Corrosion inhibiting and descaling agent for heat power plant's water circulation system of the present invention, its component and quality percentage composition are as follows:
Ethylenediamine tetraacetic acid (EDTA): 5%
Polyamino polyether methylene phosphoric acid: 10%
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 7%
Amino Trimethylene Phosphonic Acid: 10%
Diethylene triamine pentamethylene phosphonic: 2%
Hydrolytic polymaleic anhydride: 14%
Polyacrylic acid: 18%
2-mercaptobenzothiazole: 7%
Industry deionized water: surplus.
Preparation method for the corrosion inhibiting and descaling agent of heat power plant's water circulation system is as follows:
1), by described proportional quantity, take respectively ethylenediamine tetraacetic acid (EDTA), polyamino polyether methylene phosphoric acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, diethylene triamine pentamethylene phosphonic, hydrolytic polymaleic anhydride, polyacrylic acid and put into container and stir, make compound;
2), by described proportional quantity, taking respectively 2-mercaptobenzothiazole adds the industrial deionized water for stirring of described proportional quantity within 25 minutes, to make the aqueous solution;
3), by step 1) compound made joins step 1) in the aqueous solution made, stirring heating, churning time is 45 minutes, Heating temperature is 50 ℃, makes corrosion inhibiting and descaling agent.
Embodiment 3
Corrosion inhibiting and descaling agent for heat power plant's water circulation system of the present invention, its component and quality percentage composition are as follows:
Ethylenediamine tetraacetic acid (EDTA): 7%
Polyamino polyether methylene phosphoric acid: 9%
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 5%
Amino Trimethylene Phosphonic Acid: 14%
Diethylene triamine pentamethylene phosphonic: 5%
Hydrolytic polymaleic anhydride: 8%
Polyacrylic acid: 10%
2-mercaptobenzothiazole: 4%
Industry deionized water: surplus.
Preparation method for the corrosion inhibiting and descaling agent of heat power plant's water circulation system is as follows:
1), by described proportional quantity, take respectively ethylenediamine tetraacetic acid (EDTA), polyamino polyether methylene phosphoric acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, diethylene triamine pentamethylene phosphonic, hydrolytic polymaleic anhydride, polyacrylic acid and put into container and stir, make compound;
2), by described proportional quantity, taking respectively 2-mercaptobenzothiazole adds the industrial deionized water for stirring of described proportional quantity within 20 minutes, to make the aqueous solution;
3), by step 1) compound made joins step 1) in the aqueous solution made, stirring heating, churning time is 60 minutes, Heating temperature is 46 ℃, makes corrosion inhibiting and descaling agent.
Embodiment 4
Corrosion inhibiting and descaling agent for heat power plant's water circulation system of the present invention, its component and quality percentage composition are as follows:
Ethylenediamine tetraacetic acid (EDTA): 10%
Polyamino polyether methylene phosphoric acid: 5%
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 9%
Amino Trimethylene Phosphonic Acid: 15%
Diethylene triamine pentamethylene phosphonic: 6%
Hydrolytic polymaleic anhydride: 10%
Polyacrylic acid: 13%
2-mercaptobenzothiazole: 8%
Industry deionized water: surplus.
Preparation method for the corrosion inhibiting and descaling agent of heat power plant's water circulation system is as follows:
1), by described proportional quantity, take respectively ethylenediamine tetraacetic acid (EDTA), polyamino polyether methylene phosphoric acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, diethylene triamine pentamethylene phosphonic, hydrolytic polymaleic anhydride, polyacrylic acid and put into container and stir, make compound;
2), by described proportional quantity, taking respectively 2-mercaptobenzothiazole adds the industrial deionized water for stirring of described proportional quantity within 40 minutes, to make the aqueous solution;
3), by step 1) compound made joins step 1) in the aqueous solution made, stirring heating, churning time is 40 minutes, Heating temperature is 35 ℃, makes corrosion inhibiting and descaling agent.
Embodiment 5
Corrosion inhibiting and descaling agent for heat power plant's water circulation system of the present invention, its component and quality percentage composition are as follows:
Ethylenediamine tetraacetic acid (EDTA): 9%
Polyamino polyether methylene phosphoric acid: 7%
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 10%
Amino Trimethylene Phosphonic Acid: 12%
Diethylene triamine pentamethylene phosphonic: 3%
Hydrolytic polymaleic anhydride: 13%
Polyacrylic acid: 20%
2-mercaptobenzothiazole: 5%
Industry deionized water: surplus.
Preparation method for the corrosion inhibiting and descaling agent of heat power plant's water circulation system is as follows:
1), by described proportional quantity, take respectively ethylenediamine tetraacetic acid (EDTA), polyamino polyether methylene phosphoric acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, diethylene triamine pentamethylene phosphonic, hydrolytic polymaleic anhydride, polyacrylic acid and put into container and stir, make compound;
2), by described proportional quantity, taking respectively 2-mercaptobenzothiazole adds the industrial deionized water for stirring of described proportional quantity within 35 minutes, to make the aqueous solution;
3), by step 1) compound made joins step 1) in the aqueous solution made, stirring heating, churning time is 55 minutes, Heating temperature is 39 ℃, makes corrosion inhibiting and descaling agent.
Above-mentioned these embodiments are only for the present invention is described, but do not limit the scope of the invention, and after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Claims (2)
1. for a corrosion inhibiting and descaling agent for heat power plant's water circulation system, it is characterized in that component and quality percentage composition are as follows:
Ethylenediamine tetraacetic acid (EDTA): 5%～10%
Polyamino polyether methylene phosphoric acid: 5%～10%
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 5%～10%
Amino Trimethylene Phosphonic Acid: 10%～15%
Diethylene triamine pentamethylene phosphonic: 2%～6%
Hydrolytic polymaleic anhydride: 8%～14%
Polyacrylic acid: 10%～20%
2-mercaptobenzothiazole: 4～8%
Industry deionized water: surplus.
2. the preparation method of the corrosion inhibiting and descaling agent for heat power plant's water circulation system according to claim 1, is characterized in that comprising the following steps:
1), by described proportional quantity, take respectively ethylenediamine tetraacetic acid (EDTA), polyamino polyether methylene phosphoric acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, diethylene triamine pentamethylene phosphonic, hydrolytic polymaleic anhydride, polyacrylic acid and put into container and stir, make compound;
2), by described proportional quantity, taking respectively 2-mercaptobenzothiazole adds and within industrial deionized water for stirring 20-40 minute of described proportional quantity, makes the aqueous solution;
3), by step 1) compound made joins step 1) in the aqueous solution made, stirring heating, churning time is 40-60 minute, Heating temperature is 35-50 ℃, makes corrosion inhibiting and descaling agent.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271536A (en) * | 2014-07-03 | 2016-01-27 | 新疆鑫恒发环保科技有限公司 | High-temperature, high-alkali, high-hardness and high-pressure gray water dispersion scale inhibitor and preparation method thereof |
| CN105368565A (en) * | 2015-12-18 | 2016-03-02 | 常熟市劲力工具有限公司 | Grinding fluid for machining of hard alloy saw blade milling cutter |
| CN105502700A (en) * | 2015-12-31 | 2016-04-20 | 上海丰信环保科技有限公司 | Efficient-sterilization scale inhibitor inhibiting reverse osmosis of silicon dioxide and organisms |
| CN105642125A (en) * | 2015-12-31 | 2016-06-08 | 上海丰信环保科技有限公司 | Scale inhibitor for advanced treatment film of leachate |
| CN106315873A (en) * | 2016-08-29 | 2017-01-11 | 山东胜伟园林科技有限公司 | Fluorescently-labeled scale inhibitor and preparation method thereof |
| CN106430656A (en) * | 2016-10-09 | 2017-02-22 | 广西大学 | Corrosion and scale inhibitor for treating high-concentration circulating water |
| CN113023863A (en) * | 2021-03-19 | 2021-06-25 | 南京加诺能源设备有限公司 | Boiler PH regulator and preparation method thereof |
| CN113354359A (en) * | 2021-06-21 | 2021-09-07 | 深圳市东大洋水泥制品有限公司 | Siliceous stone powder concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060123885A (en) * | 2005-05-30 | 2006-12-05 | 에스케이케미칼주식회사 | Method of water treatment for preventing corrosion and scale formation of metal |
| CN101172719A (en) * | 2006-10-31 | 2008-05-07 | 中国石油化工股份有限公司 | Dirty blocking inhibitor and application in water treatment thereof |
| CN102139968A (en) * | 2011-01-28 | 2011-08-03 | 南京工大开元化学有限公司 | High-efficiency low-phosphorous corrosion inhibition antisludging agent as well as preparation method and application thereof |
| CN102344205A (en) * | 2011-08-29 | 2012-02-08 | 大连市金州金河化工建材厂 | Boiler water treatment agent |
| CN102730852A (en) * | 2012-07-16 | 2012-10-17 | 山东省泰和水处理有限公司 | Special corrosion and scale inhibitor for power plant circulating water |
-
2013
- 2013-12-27 CN CN201310737770.XA patent/CN103663741A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060123885A (en) * | 2005-05-30 | 2006-12-05 | 에스케이케미칼주식회사 | Method of water treatment for preventing corrosion and scale formation of metal |
| CN101172719A (en) * | 2006-10-31 | 2008-05-07 | 中国石油化工股份有限公司 | Dirty blocking inhibitor and application in water treatment thereof |
| CN102139968A (en) * | 2011-01-28 | 2011-08-03 | 南京工大开元化学有限公司 | High-efficiency low-phosphorous corrosion inhibition antisludging agent as well as preparation method and application thereof |
| CN102344205A (en) * | 2011-08-29 | 2012-02-08 | 大连市金州金河化工建材厂 | Boiler water treatment agent |
| CN102730852A (en) * | 2012-07-16 | 2012-10-17 | 山东省泰和水处理有限公司 | Special corrosion and scale inhibitor for power plant circulating water |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271536A (en) * | 2014-07-03 | 2016-01-27 | 新疆鑫恒发环保科技有限公司 | High-temperature, high-alkali, high-hardness and high-pressure gray water dispersion scale inhibitor and preparation method thereof |
| CN105368565A (en) * | 2015-12-18 | 2016-03-02 | 常熟市劲力工具有限公司 | Grinding fluid for machining of hard alloy saw blade milling cutter |
| CN105502700A (en) * | 2015-12-31 | 2016-04-20 | 上海丰信环保科技有限公司 | Efficient-sterilization scale inhibitor inhibiting reverse osmosis of silicon dioxide and organisms |
| CN105642125A (en) * | 2015-12-31 | 2016-06-08 | 上海丰信环保科技有限公司 | Scale inhibitor for advanced treatment film of leachate |
| CN106315873A (en) * | 2016-08-29 | 2017-01-11 | 山东胜伟园林科技有限公司 | Fluorescently-labeled scale inhibitor and preparation method thereof |
| CN106430656A (en) * | 2016-10-09 | 2017-02-22 | 广西大学 | Corrosion and scale inhibitor for treating high-concentration circulating water |
| CN113023863A (en) * | 2021-03-19 | 2021-06-25 | 南京加诺能源设备有限公司 | Boiler PH regulator and preparation method thereof |
| CN113354359A (en) * | 2021-06-21 | 2021-09-07 | 深圳市东大洋水泥制品有限公司 | Siliceous stone powder concrete and preparation method thereof |
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Application publication date: 20140326 |