CN112159737A - Neutral environment-friendly cleaning agent and preparation method thereof - Google Patents
Neutral environment-friendly cleaning agent and preparation method thereof Download PDFInfo
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- CN112159737A CN112159737A CN202011030382.4A CN202011030382A CN112159737A CN 112159737 A CN112159737 A CN 112159737A CN 202011030382 A CN202011030382 A CN 202011030382A CN 112159737 A CN112159737 A CN 112159737A
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- cleaning agent
- neutral environment
- citrate
- friendly cleaning
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/265—Carboxylic acids or salts thereof
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3245—Aminoacids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3281—Heterocyclic compounds
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to a neutral environment-friendly cleaning agent and a preparation method thereof, wherein the neutral environment-friendly cleaning agent comprises the following components in percentage by mass: 20-25% of ammonium citrate, 20-25% of sodium citrate, 10-15% of ethylene diamine tetraacetic acid tetrasodium salt, 10-15% of ternary organic polycarboxylic acid, 10-15% of diammonium citrate, 5-7% of methylbenzotriazole and 2-5% of urotropine. The invention aims at the scale and rust scale generated in the production process when various pipelines, petroleum, chemical engineering devices and industrial machines are processed, and has the advantages of excellent cleaning effect, strong practicability, low corrosivity, safe cleaning effect, environmental protection and higher economic value.
Description
Technical Field
The invention relates to the field of chemical industry, and particularly relates to a neutral environment-friendly cleaning agent and a preparation method thereof.
Background
Industrial cleaning and descaling is a new industry, the beginning of China is only over 20 years of history, and process cleaning agents have great development potential in the future in the long run, and the related fields of the process cleaning agents are expanded from petroleum, chemical industry, energy sources and electronics to various industries such as metallurgy, building, mechanical electronics, nuclear industry, light industry and the like.
At present, the cleaning process in China can be generally divided into three types. Chemical cleaning, physical cleaning and microbial cleaning. The chemical cleaning is widely applied, generally adopts acid liquor or alkali liquor, is matched with an activator to be added for cleaning, needs neutralization after use, and has strong corrosivity and great harm to equipment.
Therefore, the development of a safe and environment-friendly excellent cleaning agent which is non-toxic, does not affect the health of a human body and has good stability is a problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
The present invention is directed to solving, to some extent, one of the technical problems in the related art described above. Therefore, the invention aims to provide a neutral environment-friendly cleaning agent and a preparation method thereof, and the neutral environment-friendly cleaning agent has the advantages of water consumption saving, environmental protection, high efficiency, low corrosivity, good cleaning effect, safety and high economic value.
On one hand, the invention provides a neutral environment-friendly cleaning agent, which comprises the following components in percentage by mass: 20-25% of ammonium citrate, 20-25% of sodium citrate, 10-15% of ethylene diamine tetraacetic acid tetrasodium salt, 10-15% of ternary organic polycarboxylic acid, 10-15% of diammonium citrate, 5-7% of methylbenzotriazole and 2-5% of urotropine.
The neutral environment-friendly cleaning agent comprises the following components in percentage by mass: 23% of ammonium citrate, 21% of sodium citrate, 15% of ethylene diamine tetraacetic acid tetrasodium salt, 15% of ternary organic polycarboxylic acid, 15% of diammonium citrate, 7% of methylbenzotriazole and 5% of urotropine.
The pH value of the neutral environment-friendly cleaning agent is 6-7.
The neutral environment-friendly cleaning agent is white solid powder.
On the other hand, the invention provides a preparation method of a neutral environment-friendly cleaning agent, which comprises the following steps of mixing the components according to the mass percentage of the formula as claimed in claim 1 or 2, and sequentially adding ammonium citrate, sodium citrate, ethylene diamine tetraacetic acid tetrasodium salt, ternary organic polycarboxylic acid, diammonium citrate, methylbenzotriazole and urotropine; after the uniform mixing, pouring the mixture into a stirring tank, adding water with the same volume, starting the stirring tank to fully dissolve and mix the mixture, stirring the mixture for 5 to 8 hours, and putting the mixture into a container to evaporate and crystallize after the stirring is finished.
The invention has the beneficial effects that:
the product aims at the water scale and rust scale generated in the production process when various pipelines, petroleum, chemical engineering devices and industrial machining are processed, has excellent cleaning effect and is safe and reliable to use; the cleaning is safer, environment-friendly, economical and practical;
the corrosion rate of carbon steel, stainless steel, brass, red copper, aluminum and other materials is less than 0.3 g/square meter h, the corrosion rate of the device made of the materials in the cleaning process is far lower than the index that the corrosion rate of HG/T2387-2007 quality standard for chemical cleaning of industrial equipment is less than or equal to 6 g/square meter h, and the product cannot be seriously corroded after being used for a long time.
The product can be used for direct passivation treatment without neutralization, rinsing and water washing after cleaning, and a compact protective film is formed on the surface of equipment after cleaning, so that the product has the advantages of safety, economy, reliability, no toxicity or harm to human bodies, no neutralization treatment for waste liquid discharge, and no pollution to the environment.
The specific implementation mode is as follows:
example 1
The formula is as follows:
comprises the following components in percentage by mass: 20% of ammonium citrate, 20% of sodium citrate, 10% of ethylene diamine tetraacetic acid tetrasodium salt, 10% of ternary organic polycarboxylic acid, 10% of diammonium citrate, 5% of methylbenzotriazole and 2% of urotropine.
The preparation method comprises the following steps: sequentially adding ammonium citrate, sodium citrate, ethylene diamine tetraacetic acid tetrasodium, ternary organic polycarboxylic acid, diammonium citrate, methylbenzotriazole and urotropine and mixing; after the uniform mixing, pouring the mixture into a stirring tank, adding water with the same volume, starting the stirring tank to fully dissolve and mix the mixture, stirring the mixture for 5 to 8 hours, and putting the mixture into a container to evaporate and crystallize after the stirring is finished.
Example 2
The formula is as follows:
comprises the following components in percentage by mass: 25% of ammonium citrate, 25% of sodium citrate, 15% of ethylene diamine tetraacetic acid tetrasodium salt, 15% of ternary organic polycarboxylic acid, 15% of diammonium citrate, 7% of methylbenzotriazole and 5% of urotropine.
The preparation method comprises the following steps: sequentially adding ammonium citrate, sodium citrate, ethylene diamine tetraacetic acid tetrasodium, ternary organic polycarboxylic acid, diammonium citrate, methylbenzotriazole and urotropine and mixing; after the uniform mixing, pouring the mixture into a stirring tank, adding water with the same volume, starting the stirring tank to fully dissolve and mix the mixture, stirring the mixture for 5 to 8 hours, and putting the mixture into a container to evaporate and crystallize after the stirring is finished.
Example 3
The formula is as follows:
comprises the following components in percentage by mass: 23% of ammonium citrate, 21% of sodium citrate, 13% of ethylene diamine tetraacetic acid tetrasodium salt, 14% of ternary organic polycarboxylic acid, 11% of diammonium citrate, 6% of methylbenzotriazole and 4% of urotropine.
The preparation method comprises the following steps: sequentially adding ammonium citrate, sodium citrate, ethylene diamine tetraacetic acid tetrasodium, ternary organic polycarboxylic acid, diammonium citrate, methylbenzotriazole and urotropine and mixing; after the uniform mixing, pouring the mixture into a stirring tank, adding water with the same volume, starting the stirring tank to fully dissolve and mix the mixture, stirring the mixture for 5 to 8 hours, and putting the mixture into a container to evaporate and crystallize after the stirring is finished.
Example 4
The formula is as follows:
comprises the following components in percentage by mass: 24% of ammonium citrate, 23% of sodium citrate, 14% of ethylene diamine tetraacetic acid tetrasodium salt, 11% of ternary organic polycarboxylic acid, 12% of diammonium citrate, 6.5% of methylbenzotriazole and 3.5% of urotropine.
Example 5
Before cleaning, determining specific cleaning targets and process parameters, and determining workpiece cleaning requirements according to final requirements; the required concentration and cleaning time of the product are determined according to the rusty dirt and the thickness of the dirt of the workpiece.
Normal temperature cleaning: the concentration of the prepared aqueous solution is 3-8%, and the cleaning and soaking or circulating time is 24-48 hours;
heating and cleaning: fully washing, namely, heating the TH-86 prepared aqueous solution to 45-90 ℃ when the concentration is 3-8%, wherein the descaling and rust effects are better when the temperature is more than 65 ℃, and washing, soaking or circulating for 8-6 hours; the specific cleaning time is determined according to actual conditions, and the pH value is directly adjusted for passivation; or rinsing with water to obtain 0.1-0.2% product, and adjusting pH to deactivate.
And (3) cleaning and then treating: blowing the mixture by using nitrogen or directly adjusting the pH value to 8 after cleaning the mixture, and adding a passivating agent for passivation; or replacing with high concentration of iron ion, rinsing with the product, adjusting pH, and inactivating to 7.8.
Preferably, when the product is used for circulating or soaking cleaning: when the descaling is thick, if the equipment is not cleaned completely at one time, the cleaning agent can be supplemented or reconfigured according to the concentration of 2-3%, and then the equipment is cleaned continuously, and when the equipment is cleaned chemically, the upper part of the equipment is required to be opened and the exhaust hole is filled.
Claims (5)
1. The neutral environment-friendly cleaning agent is characterized by comprising the following components in percentage by mass: 20-25% of ammonium citrate, 20-25% of sodium citrate, 10-15% of ethylene diamine tetraacetic acid tetrasodium salt, 10-15% of ternary organic polycarboxylic acid, 10-15% of diammonium citrate, 5-7% of methylbenzotriazole and 2-5% of urotropine.
2. The neutral environment-friendly cleaning agent as claimed in claim 1, wherein the formulation comprises, by mass: 23% of ammonium citrate, 21% of sodium citrate, 15% of ethylene diamine tetraacetic acid tetrasodium salt, 15% of ternary organic polycarboxylic acid, 15% of diammonium citrate, 7% of methylbenzotriazole and 5% of urotropine.
3. A neutral environment-friendly cleaning agent as claimed in claim 1 or 2, wherein the pH value of the neutral environment-friendly cleaning agent is 6-7.
4. The neutral environment-friendly cleaning agent as claimed in claim 1 or 2, wherein the neutral environment-friendly cleaning agent is white solid powder.
5. A preparation method of a neutral environment-friendly cleaning agent is characterized in that the neutral environment-friendly cleaning agent is prepared by mixing the components according to the mass percentage of the formula as claimed in claim 1 or 2 and the components sequentially added by ammonium citrate, sodium citrate, ethylene diamine tetraacetic acid tetrasodium salt, ternary organic polycarboxylic acid, diammonium citrate, methylbenzotriazole and urotropine; after the uniform mixing, pouring the mixture into a stirring tank, adding water with the same volume, starting the stirring tank to fully dissolve and mix the mixture, stirring the mixture for 5 to 8 hours, and putting the mixture into a container to evaporate and crystallize after the stirring is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011030382.4A CN112159737A (en) | 2020-09-27 | 2020-09-27 | Neutral environment-friendly cleaning agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011030382.4A CN112159737A (en) | 2020-09-27 | 2020-09-27 | Neutral environment-friendly cleaning agent and preparation method thereof |
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| CN112159737A true CN112159737A (en) | 2021-01-01 |
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| CN202011030382.4A Pending CN112159737A (en) | 2020-09-27 | 2020-09-27 | Neutral environment-friendly cleaning agent and preparation method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105039013A (en) * | 2015-07-15 | 2015-11-11 | 龚灿锋 | Cleaning and processing agent of industrial pipe |
| CN108034954A (en) * | 2017-11-30 | 2018-05-15 | 珠海横琴思国科技发展有限公司 | A kind of anti-rust cleaning agent of aluminium and aluminium alloy and preparation method thereof |
| CN108034956A (en) * | 2017-12-12 | 2018-05-15 | 广州旭淼新材料科技有限公司 | A kind of neutrality environment-friendly rust remover and preparation method thereof |
| CN108286051A (en) * | 2017-12-21 | 2018-07-17 | 刘振民 | A kind of stainless steel gloss restorative |
| CN108998267A (en) * | 2018-08-29 | 2018-12-14 | 李少伟 | A kind of semiconductor devices corrosion inhibitor cleaning agent and preparation method |
| CN110791392A (en) * | 2019-11-21 | 2020-02-14 | 华阳新兴科技（天津）集团有限公司 | Lubricating grease cleaning agent for railway train wheel bearing and preparation method thereof |
| CN110983348A (en) * | 2019-12-30 | 2020-04-10 | 天津普罗米新材料有限公司 | Neutral rust remover |
| CN111003821A (en) * | 2019-12-26 | 2020-04-14 | 大庆鉴升科技开发有限公司 | Neutral detergent for efficiently removing carbonate and iron oxide scales and preparation method thereof |
-
2020
- 2020-09-27 CN CN202011030382.4A patent/CN112159737A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105039013A (en) * | 2015-07-15 | 2015-11-11 | 龚灿锋 | Cleaning and processing agent of industrial pipe |
| CN108034954A (en) * | 2017-11-30 | 2018-05-15 | 珠海横琴思国科技发展有限公司 | A kind of anti-rust cleaning agent of aluminium and aluminium alloy and preparation method thereof |
| CN108034956A (en) * | 2017-12-12 | 2018-05-15 | 广州旭淼新材料科技有限公司 | A kind of neutrality environment-friendly rust remover and preparation method thereof |
| CN108286051A (en) * | 2017-12-21 | 2018-07-17 | 刘振民 | A kind of stainless steel gloss restorative |
| CN108998267A (en) * | 2018-08-29 | 2018-12-14 | 李少伟 | A kind of semiconductor devices corrosion inhibitor cleaning agent and preparation method |
| CN110791392A (en) * | 2019-11-21 | 2020-02-14 | 华阳新兴科技（天津）集团有限公司 | Lubricating grease cleaning agent for railway train wheel bearing and preparation method thereof |
| CN111003821A (en) * | 2019-12-26 | 2020-04-14 | 大庆鉴升科技开发有限公司 | Neutral detergent for efficiently removing carbonate and iron oxide scales and preparation method thereof |
| CN110983348A (en) * | 2019-12-30 | 2020-04-10 | 天津普罗米新材料有限公司 | Neutral rust remover |
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Application publication date: 20210101 |