CN110835174A - Phosphorus-free industrial circulating water composite corrosion and scale inhibitor - Google Patents
Phosphorus-free industrial circulating water composite corrosion and scale inhibitor Download PDFInfo
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- CN110835174A CN110835174A CN201911177298.2A CN201911177298A CN110835174A CN 110835174 A CN110835174 A CN 110835174A CN 201911177298 A CN201911177298 A CN 201911177298A CN 110835174 A CN110835174 A CN 110835174A
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- scale inhibitor
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- composite corrosion
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- 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
- C02F5/105—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 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
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- Inorganic Chemistry (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)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to a phosphorus-free industrial circulating water composite corrosion and scale inhibitor which comprises, by weight, 10-20 parts of hydrolyzed polymaleic acid, 10-20 parts of acrylic acid-hydroxypropyl acrylate copolymer, 15-30 parts of polyepoxysuccinic acid, 2-5 parts of zinc salt, 2-5 parts of a stabilizing synergist and 30-40 parts of water. The invention can improve the corrosion inhibition performance of the medicament and enhance the stability of the medicament.
Description
Technical Field
The invention relates to a corrosion and scale inhibitor, in particular to a composite corrosion and scale inhibitor.
Background
In the circulating cooling water system of industrial production, hardness, alkalinity and pH value of circulating water are naturally raised due to water temperature rise, water evaporation, concentration of various inorganic ions and organic substances, and alkaline earth metal cations such as Ca contained in water2+、Mg2+、Ba2+And small amounts of other cations such as Fe2+、Fe3+、Cu2+、Al3+、Zn2+Etc. will react with SO in the water4 2-、CO3 2-、HCO3 -、OH-、PO4 3-、SiO3 2-Plasma formation of insoluble inorganic salts such as Ca3(PO4)2、Ca(CO3)2、CaSO4、Mg(OH)2And the like, deposits on the surfaces of the pipes and the heat exchangers to cause the heat transfer efficiency of the heat exchangers to be reduced and cause corrosion under the deposits, wasting a large amount of energy, and reducing the service life of the whole system.
Chinese patent document CN101805068A (application No. 201010147936.9) discloses a phosphorus-free scale inhibition dispersant and a preparation method thereof, the phosphorus-free scale inhibition dispersant is a copolymer of maleic anhydride and propenyl ether, and the propenyl ether is propenyl polyoxyethylene ether; the preparation method comprises the steps of dropwise adding an initiator ammonium persulfate aqueous solution into an aqueous solution containing maleic anhydride and propenyl ether, and stirring and reacting for 3-6 hours at the temperature of 60-90 ℃ after the dropwise adding is finished. The scale inhibitor is a binary copolymer scale inhibitor, has good calcium carbonate scale inhibition performance, does not show other scale inhibition dispersion performance, and has a narrow application range.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects in the prior art and provide the phosphorus-free industrial circulating water composite corrosion and scale inhibitor with good corrosion and scale inhibition performance and stable working efficiency.
The technical scheme is as follows: in order to solve the technical problems, the phosphorus-free industrial circulating water composite corrosion and scale inhibitor comprises the following components in parts by weight,
(1) 10-20 parts of hydrolyzed polymaleic acid;
(2) 10-20 parts of acrylic acid-hydroxypropyl acrylate copolymer;
(3) 15-30 parts of polyepoxysuccinic acid;
(4) 2-5 parts of zinc salt;
(5) 2-5 parts of a stabilizing synergist;
(6) 30-40 parts of water.
Preferably, it comprises, in parts by weight,
(1) 18 parts of hydrolyzed polymaleic acid;
(2) 17 parts of acrylic acid-hydroxypropyl acrylate copolymer;
(3) 25 parts of polyepoxysuccinic acid;
(4) 4 parts of zinc salt;
(5) 3 parts of a stabilizing synergist;
(6) 38 parts of water.
Preferably, the stabilizing synergist is dimethylformamide.
Preferably, the preparation method of the composite corrosion and scale inhibitor comprises the steps of firstly adding part of water, then putting the zinc salt and the stabilizing synergist into an enamel mixing kettle, pumping hydrolyzed polymaleic acid, acrylic acid-hydroxypropyl acrylate copolymer and polyepoxysuccinic acid into the enamel mixing kettle by using a material sucking pump after stirring and completely dissolving, finally adding the rest water, starting the mixing kettle to stir for 10-15 minutes, and closing stirring after determining uniform mixing.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the invention adopts hydrolyzed polymaleic acid, acrylic acid-hydroxypropyl acrylate copolymer, polyepoxysuccinic acid, zinc salt and stabilizing synergist, and the corrosion inhibition performance is enhanced and the working efficiency is improved by adding water and uniformly stirring, thereby meeting the actual use requirement.
Detailed Description
Example 1
The invention relates to a phosphorus-free industrial circulating water composite corrosion and scale inhibitor, which comprises the following components in parts by weight,
(1) 19 parts of hydrolyzed polymaleic acid;
(2) 15 parts of acrylic acid-hydroxypropyl acrylate copolymer;
(3) 17 parts of polyepoxysuccinic acid;
(4) 3 parts of zinc salt;
(5) 4 parts of a stabilizing synergist;
(6) 33 parts of water.
The stabilizing synergist is dimethylformamide.
The preparation method of the composite corrosion and scale inhibitor comprises the steps of firstly adding part of water, then putting the zinc salt and the stabilizing synergist into an enamel mixing kettle, stirring and completely dissolving, pumping hydrolyzed polymaleic acid, acrylic acid-hydroxypropyl acrylate copolymer and polyepoxysuccinic acid into the enamel mixing kettle by using a suction pump, finally adding the rest water, starting the mixing kettle for stirring, stirring for 10-15 minutes, and stopping stirring after uniform mixing is determined.
Example 2
The invention relates to a phosphorus-free industrial circulating water composite corrosion and scale inhibitor, which comprises the following components in parts by weight,
(1) 17 parts of hydrolyzed polymaleic acid;
(2) 16 parts of acrylic acid-hydroxypropyl acrylate copolymer;
(3) 23 parts of polyepoxysuccinic acid;
(4) 3.5 parts of zinc salt;
(5) 2.5 parts of a stabilizing synergist;
(6) and 36 parts of water.
The stabilizing synergist is dimethylformamide.
The preparation method of the composite corrosion and scale inhibitor comprises the steps of firstly adding part of water, then putting the zinc salt and the stabilizing synergist into an enamel mixing kettle, stirring and completely dissolving, pumping hydrolyzed polymaleic acid, acrylic acid-hydroxypropyl acrylate copolymer and polyepoxysuccinic acid into the enamel mixing kettle by using a suction pump, finally adding the rest water, starting the mixing kettle for stirring, stirring for 10-15 minutes, and stopping stirring after uniform mixing is determined.
The invention adopts hydrolyzed polymaleic acid, acrylic acid-hydroxypropyl acrylate copolymer, polyepoxysuccinic acid, zinc salt and stabilizing synergist, and the corrosion inhibition performance is enhanced and the working efficiency is stable by adding water and stirring uniformly, thereby meeting the actual use requirement.
The present invention provides a thought and a method, and a method and a way for implementing the technical scheme are many, the above is only a preferred embodiment of the present invention, it should be noted that, for a person skilled in the art, a plurality of improvements and modifications can be made without departing from the principle of the present invention, and the improvements and modifications should be regarded as the protection scope of the present invention, and each component not explicitly described in the embodiment can be implemented by the prior art.
Claims (4)
1. The phosphorus-free industrial circulating water composite corrosion and scale inhibitor is characterized in that: it comprises the following components in parts by weight,
(1) 10-20 parts of hydrolyzed polymaleic acid;
(2) 10-20 parts of acrylic acid-hydroxypropyl acrylate copolymer;
(3) 15-30 parts of polyepoxysuccinic acid;
(4) 2-5 parts of zinc salt;
(5) 2-5 parts of a stabilizing synergist;
(6) 30-40 parts of water.
2. The phosphorus-free industrial circulating water composite corrosion and scale inhibitor according to claim 1, which is characterized in that: it comprises the following components in parts by weight,
(1) 18 parts of hydrolyzed polymaleic acid;
(2) 17 parts of acrylic acid-hydroxypropyl acrylate copolymer;
(3) 25 parts of polyepoxysuccinic acid;
(4) 4 parts of zinc salt;
(5) 3 parts of a stabilizing synergist;
(6) 38 parts of water.
3. The phosphorus-free industrial circulating water composite corrosion and scale inhibitor according to claim 1, which is characterized in that: the stabilizing synergist is dimethylformamide.
4. The phosphorus-free industrial circulating water composite corrosion and scale inhibitor according to claim 1, which is characterized in that: the preparation method of the composite corrosion and scale inhibitor comprises the steps of firstly adding part of water, then putting the zinc salt and the stabilizing synergist into an enamel mixing kettle, pumping hydrolyzed polymaleic acid, acrylic acid-hydroxypropyl acrylate copolymer and polyepoxysuccinic acid into the enamel mixing kettle by using a suction pump after a stirring mixture is completely dissolved, finally adding the rest water, starting the mixing kettle for stirring, stirring for 10-15 minutes, and stopping stirring after uniform mixing is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911177298.2A CN110835174A (en) | 2019-11-27 | 2019-11-27 | Phosphorus-free industrial circulating water composite corrosion and scale inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911177298.2A CN110835174A (en) | 2019-11-27 | 2019-11-27 | Phosphorus-free industrial circulating water composite corrosion and scale inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110835174A true CN110835174A (en) | 2020-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911177298.2A Pending CN110835174A (en) | 2019-11-27 | 2019-11-27 | Phosphorus-free industrial circulating water composite corrosion and scale inhibitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517489A (en) * | 2020-04-27 | 2020-08-11 | 大唐长春第二热电有限责任公司 | Membrane-process reclaimed water reuse scale inhibitor and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805067A (en) * | 2009-02-17 | 2010-08-18 | 上海洗霸科技有限公司 | Phosphorus-free green composite corrosion and scale inhibitor |
| 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 |
| CN107021566A (en) * | 2017-04-10 | 2017-08-08 | 南京工大开元环保科技（滁州）有限公司 | Efficient low-phosphorus high temperature buck dispersant preparation method and its application |
| CN108002555A (en) * | 2017-12-07 | 2018-05-08 | 广州赫尔普化工有限公司 | A kind of phosphate-free corrosion inhibition antisludging agent suitable for industrial circulating cooling water |
-
2019
- 2019-11-27 CN CN201911177298.2A patent/CN110835174A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805067A (en) * | 2009-02-17 | 2010-08-18 | 上海洗霸科技有限公司 | Phosphorus-free green composite corrosion and scale inhibitor |
| 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 |
| CN107021566A (en) * | 2017-04-10 | 2017-08-08 | 南京工大开元环保科技（滁州）有限公司 | Efficient low-phosphorus high temperature buck dispersant preparation method and its application |
| CN108002555A (en) * | 2017-12-07 | 2018-05-08 | 广州赫尔普化工有限公司 | A kind of phosphate-free corrosion inhibition antisludging agent suitable for industrial circulating cooling water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517489A (en) * | 2020-04-27 | 2020-08-11 | 大唐长春第二热电有限责任公司 | Membrane-process reclaimed water reuse scale inhibitor and preparation method thereof |
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Application publication date: 20200225 |