CN114481140A - Circulating water corrosion inhibitor - Google Patents
Circulating water corrosion inhibitor Download PDFInfo
- Publication number
- CN114481140A CN114481140A CN202111656350.XA CN202111656350A CN114481140A CN 114481140 A CN114481140 A CN 114481140A CN 202111656350 A CN202111656350 A CN 202111656350A CN 114481140 A CN114481140 A CN 114481140A
- Authority
- CN
- China
- Prior art keywords
- corrosion inhibitor
- circulating water
- amine
- water corrosion
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F15/00—Other methods of preventing corrosion or incrustation
- C23F15/005—Inhibiting incrustation
Abstract
The invention provides a circulating water corrosion inhibitor which is characterized by being prepared from the following components in percentage by mass: 25-50% of HPAA; POCA 5-10%; 2-5% of heptadecyl imidazoline; 10-15% of zinc sulfate; 5-10% of benzotriazole; 1-2% of amine; the balance of water. The product has low dosage, has good corrosion inhibition effect on carbon steel, copper and stainless steel, and the addition of the corrosion inhibitor does not influence the water quality of a system.
Description
Technical Field
The invention relates to the field of water treatment agents, and particularly relates to a circulating water corrosion inhibitor.
Background
At present, scale and corrosion inhibitors in the market have good compatibility and are easy to compound, and more scale and corrosion inhibitors are available in the market, but in actual use, system scale inhibitors are probably enough aiming at different water qualities and circulating water materials, but because the corrosion inhibition effect is not in place, more medicaments are required to be added, so that the scale inhibitors are added more, the waste of economic cost is caused, the conductivity of water is increased after more medicaments are added, and the circulating water special corrosion inhibitor is rarely provided in the market.
Disclosure of Invention
The invention aims to overcome the defects and provide the corrosion inhibitor which is low in dosage and has a very good corrosion inhibition effect on carbon steel, copper and stainless steel, and the addition of the corrosion inhibitor cannot influence the water quality of a system.
The invention provides a circulating water corrosion inhibitor which is characterized by being prepared from the following components in percentage by mass:
further, the invention provides a circulating water corrosion inhibitor, which is characterized in that:
the alkylamine is one or more selected from alkylamine with carbon atoms more than 10.
Further, the invention provides a circulating water corrosion inhibitor, which is characterized in that:
the alkylamine is membrane amine;
the membrane amine is selected from one or more of tallow amine, hexadecyl amine and octadecyl amine.
Further, the invention provides a circulating water corrosion inhibitor, which is characterized in that:
the alkyl imidazoline is one or more selected from alkyl imidazoline with carbon atom more than 10.
Further, the invention provides a circulating water corrosion inhibitor, which is characterized in that:
the sulfate is one or more selected from divalent metal sulfate.
Further, the invention provides a circulating water corrosion inhibitor which is characterized by comprising the following specific preparation methods:
s1, sequentially adding HPAA, POCA and sulfate into water, and uniformly mixing;
s2, heating to 30-40 ℃, and sequentially and slowly adding benzotriazole and alkyl imidazoline;
s3, raising the temperature to 55-65 ℃, slowly adding the amine film, and stirring for 1-2 hours to obtain the product.
Further, the invention provides a circulating water corrosion inhibitor, which is characterized in that:
the membrane amine is selected from one or more of tallow amine, hexadecyl amine and octadecyl amine.
Further, the invention provides a circulating water corrosion inhibitor which is characterized in that the specific preparation method is as follows:
s1, sequentially adding HPAA, POCA and zinc sulfate into water, and uniformly mixing;
s2, heating to 30-40 ℃, and slowly adding benzotriazole and heptadecyl imidazoline in sequence;
s3, raising the temperature to 55-65 ℃, slowly adding the amine film, and stirring for 1-2 hours to obtain the product.
Detailed Description
Example 1
The corrosion inhibitor comprises the following components: 25% of HPAA, 5% of POCA, 5% of heptadecyl imidazoline, 15% of zinc sulfate, 5% of benzotriazole, 1% of tallow amine and the balance of water.
The preparation method comprises the following steps:
the first step is as follows: deionized water is added into a 1 ton reaction kettle, then HPAA, POCA and zinc sulfate are added, and the mixture is uniformly mixed.
The second step: raising the temperature of the solution to 30-40 ℃, and slowly adding benzotriazole and heptadecyl imidazoline.
The third step: and continuously raising the temperature to 55-65 ℃, slowly adding the amine film, and stirring for 2 hours after the addition of the chemicals is finished to obtain the product.
Example 2
The corrosion inhibitor comprises the following components: 50% of HPAA, 10% of POCA, 2% of heptadecyl imidazoline, 10% of zinc sulfate, 10% of benzotriazole, 1% of hexadecylamine, 1% of octadecylamine and the balance of water.
The preparation method comprises the following steps:
the first step is as follows: deionized water is added into a 1 ton reaction kettle, then HPAA, POCA and zinc sulfate are added, and the mixture is uniformly mixed.
The second step is that: raising the temperature of the solution to 30-40 ℃, and slowly adding benzotriazole and heptadecyl imidazoline.
The third step: and continuously raising the temperature to 55-65 ℃, slowly adding the amine film, and stirring for 2 hours after the addition of the chemicals is finished to obtain the product.
Example 3
The corrosion inhibitor comprises the following components: HPAA 35%, POCA 10%, heptadecyl imidazoline 5%, zinc sulfate 12%, benzotriazole 10%, tallow amine 1%, hexadecyl amine 1%, and water in balance.
The preparation method comprises the following steps:
the first step is as follows: deionized water is added into a 1 ton reaction kettle, then HPAA, POCA and zinc sulfate are added, and the mixture is uniformly mixed.
The second step is that: raising the temperature of the solution to 30-40 ℃, and slowly adding benzotriazole and heptadecyl imidazoline.
The third step: and continuously raising the temperature to 55-65 ℃, slowly adding the amine film, and stirring for 2 hours after the addition of the chemicals is finished to obtain the product.
The corrosion inhibition effect test result of the product is as follows:
corrosion inhibition for several metals: the dosage is 10ppm
From the results, under the condition that the dosage of the corrosion inhibitor is only 10ppm, the effect of the new product is obviously better than that of a single raw material, and the new product reaches the national standard of circulating water quality after being added with the chemical agent. The single raw material has the phenomenon of poor effect and even corrosion rate increase.
Claims (6)
1. The circulating water corrosion inhibitor is characterized by being prepared from the following components in percentage by mass:
2. the circulating water corrosion inhibitor of claim 1, wherein:
the alkylamine is one or more selected from alkylamine with carbon atoms more than 10.
3. The corrosion inhibitor for circulating water of claim 1, wherein:
the alkylamine is a membrane amine;
the membrane amine is selected from one or more of tallow amine, hexadecyl amine and octadecyl amine.
4. The circulating water corrosion inhibitor of claim 1, wherein:
the alkyl imidazoline is one or more selected from alkyl imidazoline with carbon atom more than 10.
5. The circulating water corrosion inhibitor of claim 1, wherein:
the sulfate is selected from one or more of divalent metal sulfate salts.
6. The circulating water corrosion inhibitor as claimed in claim 1, wherein the specific preparation method is as follows:
s1, sequentially adding HPAA, POCA and sulfate into water, and uniformly mixing;
s2, heating to 30-40 ℃, and slowly adding benzotriazole and alkyl imidazoline in sequence;
s3, raising the temperature to 55-65 ℃, slowly adding the amine film, and stirring for 1-2 hours to obtain the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656350.XA CN114481140A (en) | 2021-12-30 | 2021-12-30 | Circulating water corrosion inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656350.XA CN114481140A (en) | 2021-12-30 | 2021-12-30 | Circulating water corrosion inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114481140A true CN114481140A (en) | 2022-05-13 |
Family
ID=81508795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111656350.XA Pending CN114481140A (en) | 2021-12-30 | 2021-12-30 | Circulating water corrosion inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114481140A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2253697C1 (en) * | 2004-04-29 | 2005-06-10 | Гаврилов Наум Беньяминович | Brass and carbon steel corrosion inhibitor |
| CN101125715A (en) * | 2007-08-16 | 2008-02-20 | 樊桂修 | Composite corrosion-retarding antisludging agent for treating high-concentration multiple circulating water |
| CN102198983A (en) * | 2010-03-23 | 2011-09-28 | 上海梅山钢铁股份有限公司 | Corrosion inhibition antisludging agent for reclaimed water circulating water system and preparation method thereof |
| CN102276071A (en) * | 2011-05-24 | 2011-12-14 | 天津市科达斯实业有限公司 | Phosphorus-free scale and corrosion inhibitor for circulating cooling water treatment |
| CN102583785A (en) * | 2012-02-03 | 2012-07-18 | 上海韬鸿化工科技有限公司 | Circulating cooling water corrosion inhibitor, and preparation and application thereof |
| CN104591413A (en) * | 2015-01-15 | 2015-05-06 | 鞍钢贝克吉利尼水处理有限公司 | Corrosion and scale inhibitor for blast furnace closed-loop circulating water and preparation method of inhibitor |
| CN104609578A (en) * | 2013-11-01 | 2015-05-13 | 湖州欧美新材料有限公司 | Multi-component corrosion and scale inhibitor |
| CN108862644A (en) * | 2017-11-15 | 2018-11-23 | 上海屹屹环境科技有限公司 | A kind of corrosion inhibiting and descaling agent |
| CN110158091A (en) * | 2019-06-28 | 2019-08-23 | 湖南浩润科技有限公司 | A kind of new oil-soluble corrosion inhibiter |
| CN110777382A (en) * | 2019-10-18 | 2020-02-11 | 上海霖动环保科技有限公司 | Neutralizing film-forming corrosion and scale inhibitor and preparation method thereof |
| CN111058043A (en) * | 2018-10-17 | 2020-04-24 | 中国石油化工股份有限公司 | Organic composite corrosion inhibitor and method for inhibiting carbon steel corrosion in Fischer-Tropsch synthesis reaction water by using same |
| CN114477479A (en) * | 2022-01-20 | 2022-05-13 | 甘肃泰升化工科技有限公司 | Online scale preventing and removing agent for circulating water |
-
2021
- 2021-12-30 CN CN202111656350.XA patent/CN114481140A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2253697C1 (en) * | 2004-04-29 | 2005-06-10 | Гаврилов Наум Беньяминович | Brass and carbon steel corrosion inhibitor |
| CN101125715A (en) * | 2007-08-16 | 2008-02-20 | 樊桂修 | Composite corrosion-retarding antisludging agent for treating high-concentration multiple circulating water |
| CN102198983A (en) * | 2010-03-23 | 2011-09-28 | 上海梅山钢铁股份有限公司 | Corrosion inhibition antisludging agent for reclaimed water circulating water system and preparation method thereof |
| CN102276071A (en) * | 2011-05-24 | 2011-12-14 | 天津市科达斯实业有限公司 | Phosphorus-free scale and corrosion inhibitor for circulating cooling water treatment |
| CN102583785A (en) * | 2012-02-03 | 2012-07-18 | 上海韬鸿化工科技有限公司 | Circulating cooling water corrosion inhibitor, and preparation and application thereof |
| CN104609578A (en) * | 2013-11-01 | 2015-05-13 | 湖州欧美新材料有限公司 | Multi-component corrosion and scale inhibitor |
| CN104591413A (en) * | 2015-01-15 | 2015-05-06 | 鞍钢贝克吉利尼水处理有限公司 | Corrosion and scale inhibitor for blast furnace closed-loop circulating water and preparation method of inhibitor |
| CN108862644A (en) * | 2017-11-15 | 2018-11-23 | 上海屹屹环境科技有限公司 | A kind of corrosion inhibiting and descaling agent |
| CN111058043A (en) * | 2018-10-17 | 2020-04-24 | 中国石油化工股份有限公司 | Organic composite corrosion inhibitor and method for inhibiting carbon steel corrosion in Fischer-Tropsch synthesis reaction water by using same |
| CN110158091A (en) * | 2019-06-28 | 2019-08-23 | 湖南浩润科技有限公司 | A kind of new oil-soluble corrosion inhibiter |
| CN110777382A (en) * | 2019-10-18 | 2020-02-11 | 上海霖动环保科技有限公司 | Neutralizing film-forming corrosion and scale inhibitor and preparation method thereof |
| CN114477479A (en) * | 2022-01-20 | 2022-05-13 | 甘肃泰升化工科技有限公司 | Online scale preventing and removing agent for circulating water |
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