CN102051628B - Degradable environment-friendly dirt remover - Google Patents
Degradable environment-friendly dirt remover Download PDFInfo
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- CN102051628B CN102051628B CN201010506449.7A CN201010506449A CN102051628B CN 102051628 B CN102051628 B CN 102051628B CN 201010506449 A CN201010506449 A CN 201010506449A CN 102051628 B CN102051628 B CN 102051628B
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Abstract
The invention relates to a degradable environment-friendly dirt remover which is characterized by comprising the following components in percentage by weight: 70-75% of citric acid, 14-18% of sulfamic acid, 5.0-6.0% of sodium gluconate, 2.8-3.0% of sodium polyaspartate, 1.4-1.6% of thiocarbamide and 1.4-1.6% of 2,2-dibromo-3-nitrilopropionamide. In the invention, environment-friendly solid organic acids are used as the main components, and degradable corrosion inhibitor, dispersant, slime remover and chelator are used as auxiliary components, therefore, the degradable environment-friendly dirt remover is applicable to various types of dirt and various metal materials, and has excellent descaling and corrosion-inhibiting properties. The degradation rate of the degradable environment-friendly dirt remover can be higher than 93% after 28 days, thus, the degradable environment-friendly dirt remover belongs to an environment-friendly product. The product can be used for preferably overcoming the defects of single function, narrow applicability and non-environment-friendliness in the current cleaning agent.
Description
Technical field
The present invention relates to a kind of degradable environment-friendly type dirt remover be used to removing heat-exchange system knot and scaling and embroider dirt.
Background technology
At chemical industry, pharmacy, chemical fertilizer, electric power, printing and dyeing, iron and steel, metallurgy, heating and nearly all industry and civil area such as civilian, many equipment tend to give birth to a large amount of incrustation scales or the dirt of other type at some heat exchange position knots through after a while operation.The formation of these dirts, the lighter can cause the equipment work decrease in efficiency, shortens service life of equipment, increases energy consumption and production cost, severe one can cause equipment scrapping, the serious consequences such as production development accident or contaminate environment, financial loss will be very huge.Therefore, these equipment must carry out matting to it after operation after a while.So that equipment moves under the environment of efficient, less energy-consumption and safety.
At present the equipment such as industrial all types of boiler, pipeline, the interchanger method of carrying out matting scale removal, decontamination generally adopts strong acid solution to carry out pickling.Interchanger material and dirt composition according to different adopt respectively different Acidwash solutions and inhibiter, and these Acidwash solutions have very strong volatility and niff usually, and employed inhibiter toxicity is large and cannot biological degradation.These clean-out systems still all are unacceptable from environmental protection from a security perspective.At present people have found the inhibiter of the excellent property of the clean-out system that is applicable to a certain dirt or a certain metal material.But many equipment are comprised of two or more materials often, the composition of its dirt is more complicated also, in actual procedure, adopt different types of acid to replace cleaning with regard to needs, and when cleaning, also will consider the practical situation of various material coexistence, so that cleaning process is complicated.Therefore, development of new is applicable to different dirts and the friendly type clean-out system of Multifunctional environment that various material all has good corrosion inhibition and a safety non-toxic is had very important significance.
At present, the matting of China is commonly used incrustation scale and the rust deposite of the strong acid cleaning equipments such as hydrochloric acid, nitric acid, sulfuric acid take pickling as main.Because strong acid is acid strong, scale removal efficient is high, therefore, is widely used with the rinse product of the strong acid such as hydrochloric acid, nitric acid, sulfuric acid as main component.But strong acid has certain danger to equipment and operator, and particularly above several acid all contain very niff, and often form acid mist, may jeopardize operator's safety in the cleaning process.On the other hand, also more serious to the corrosion of metallic substance take top several strong acid as the clean-out system that the basis produces.For avoiding cleaning process to the corrosion of equipment, the inhibiter that must adding adapts with it.At present general inhibiter has respectively preferably rust inhibition under different acid environments, but they all can not degrade, and some also has larger toxicity.
Along with improving constantly of people's environmental consciousness, there has been the investigator that sight has been concentrated in the research of environmental friendliness inhibiter at present.Wang Yimin has developed a kind of security chemistry inhibiter, composite the forming such as organic acid and inhibiter, thus realized solidification and the low acidifying of inhibiter, but its life degradation property is poor.Zheng Xingwen etc. sum up the natural green hydrochloric acid pickling corrosion inhibitor, find that research in the past all is that the corrosion inhibition under hydrochloric acid and the sulfuric acid medium is introduced, and still do not break away from hydrochloric acid or sulfuric acid as basic material.Chen Xinyi has developed a kind of environmentally friendly inhibiter, and its mechanism is inquired into.This inhibiter is by three kinds of composite forming of composition such as glycerol, potassium sulfocyanate, sulfanilamide (SN).Its corrosion inhibition rate in hydrochloric acid soln has reached more than 98%, but not biodegradable.The ocean Li Yan of the Chinese Academy of Sciences has invented a kind of green acid restrainer, by three kinds of composite forming of composition such as berberine hydrochlorides, also is to be had preferably corrosion inhibition during as medium by sulfuric acid, hydrochloric acid.In sum, although domestic and international environment amenable inhibiter has carried out some researchs, still take hydrochloric acid or sulfuric acid as the research medium, its medium high volatility and inhibiter itself are not biodegradable in these researchs.From the angle of safety and environmental protection, also has very large gap.
The present invention is directed to present clean-out system most for liquid, can not degrade the shortcoming of poor stability.Take environmentally friendly solid organic acid as main component, be aided with degradable inhibiter, dispersion agent, adhesive mud remover and sequestrant, developed the environmentally friendly degradable clean-out system of a kind of Multifunction.Applicable to multiple dirt and various metals material, corrosion inhibition is excellent, and soluble in water, safety non-toxic.It can well overcome present clean-out system function singleness, applicable surface is narrow, non-ambient is friendly present situation.The premium properties that this product has will remedy the drawback that exists in the present Process of Chemical Cleaning.
Summary of the invention
The object of the present invention is to provide a kind of environmentally friendly degradable dirt remover, this dirt remover has the characteristics such as scale removal speed is fast, use safety, energy-conserving and environment-protective, multiple functional, biodegradable, production process is simple.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of degradable environment-friendly type dirt remover is characterized in that it comprises following weight percent component:
Citric acid 70～75%,
Thionamic acid 14～18%,
Sunmorl N 60S 5.0～6.0%,
Poly (sodium aspartate) 2.8～3.0%,
Thiocarbamide 1.4～1.6%,
2,2-, two bromo-3-nitrilo propionic acid amides 1.4～1.6%.
A kind of degradable environment-friendly type dirt remover is characterized in that it comprises following weight percent component:
Citric acid 70%,
Thionamic acid 18%,
Sunmorl N 60S 6.0%,
Poly (sodium aspartate) 3.0%,
Thiocarbamide 1.4%,
2,2-, two bromo-3-nitrilo propionic acid amides 1.6%.
A kind of degradable environment-friendly type dirt remover is characterized in that it comprises following weight percent component:
Citric acid 75%,
Thionamic acid 14%,
Sunmorl N 60S 5.0%,
Poly (sodium aspartate) 2.8%,
Thiocarbamide 1.6%,
2,2-, two bromo-3-nitrilo propionic acid amides 1.6%.
The raw material of preparation dirt remover is Industrial products, the preparation method of dirt remover of the present invention is as follows: with citric acid, thionamic acid, Sunmorl N 60S, poly (sodium aspartate), diethyl thiourea and 2,2-two bromo-3-nitrilo propionic acid amides are put into cone-type mixer in described ratio, mix to get product.
Degradable environment-friendly type dirt remover provided by the invention, used raw material is solid in its prescription, nonpoisonous and tasteless, most raw material can biological degradation.When component design, the composition of existing quick descaling, considered again inhibition, the dirt of cleaning process dispersion, peel off the function ingredients such as chelating of sterilization and scale-forming ion.Stipulate according to the chemical industry standard HG/T2387-2007 of the People's Republic of China (PRC) " industrial equipments matting quality standard ": in the Process of Chemical Cleaning, the corrosion rate that must control the carbon steel kind equipment is not more than 6g/m2.h, corrosion rate to stainless steel-like, red copper, copper alloy, aluminium and aluminium alloy kind equipment is not more than 2g/m2.h, and degradable environment-friendly type dirt remover of the present invention to the corrosion rate of carbon steel below 2g/m2.h, to the corrosion rate of stainless steel, copper and aluminium below 0.35g/m2.h.When carrying out biodegradability mensuration, measuring method with reference to biodegradable in " Treatment of Industrial Water " the 21st volume first phase Xiong Rongchun etc. " the synthetic and scale-inhibiting properties research of green bio polymeric polyaspartic acid " literary composition adopts THZ-82 gas bath constant temperature oscillator to carry out the shaking table laboratory method and measures.
Degradable environment-friendly type dirt remover provided by the invention is compared with existing chemical and had the following advantages: (1) raw materials used solid that is, production technique is simple, transportation safety.。(2) having adopted can biodegradable raw material, so that Product environment is friendly.(3) dispersant with high efficiency, sterilizing peel-off agent and sequestrant have been added, so that product scale removal speed is fast, successful.(4) added multi-functional corrosion inhibior, the product corrosion inhibition is good, and is multiple functional, is applicable to the system of various material coexistence.The cleaning of peeling off that degradable environment-friendly type dirt remover of the present invention can be widely used in incrustation scale that chemical industry, pharmacy, chemical fertilizer, electric power, printing and dyeing, iron and steel, metallurgy, heating and the nearly all industry such as civilian and civil area watering equipment and heat-exchange equipment knot gives birth to, embroider the dirts such as dirt.
Embodiment
The invention is further illustrated by the following examples, but be not limited to its scope.
Embodiment 1: preparation degradable environment-friendly type dirt remover 100kg, the raw materials used industrial goods that are.Citric acid 70kg, thionamic acid 18kg, Sunmorl N 60S 6kg, poly (sodium aspartate) 3kg, thiocarbamide 1.4kg and 2,2-, two bromo-3-nitrilo propionic acid amide 1.6kg.Above-mentioned raw materials is put into cone-type mixer, mix and get product.
Corrosion test: above-mentioned dirt remover is mixed with 5% the clean-out system aqueous solution with deionized water, the clean-out system aqueous solution with above-mentioned 5% is positioned in the Erlenmeyer flask of 500ml, the test piece of unlike material is hung on respectively in the Erlenmeyer flask that fills 5% the clean-out system aqueous solution, then Erlenmeyer flask is positioned in 50 ℃ the water bath with thermostatic control static test 12 hours.Measure corrosion rate with reference to the chemical industry standard HG/T2387-2007 of the People's Republic of China (PRC) " industrial equipments matting quality standard ".Its result such as table one:
The corrosion rate (g/m2.h) of table one degradable environment-friendly type dirt remover of the present invention
Biodegradability test: when carrying out the biological degradability test, adopting the concentration of degradable environment-friendly type dirt remover is 50mg/L, with reference to the measuring method of biodegradable in " the synthetic and scale-inhibiting properties research of green bio polymeric polyaspartic acid " literary compositions such as " Treatment of Industrial Water " the 21st volume first phase Xiong Rongchun, its result such as table two:
The biological degradation rate (%) of table two degradable environment-friendly type dirt remover of the present invention
The scale removal test: lime scale is used in test, dirty thick 4mm, and temperature 50 C, the above-mentioned clean-out system aqueous solution of employing 5% is tested, and incrustation scale dissolved fully in 30 minutes.
Embodiment 2: preparation degradable environment-friendly type dirt remover 100kg, the raw materials used industrial goods that are.Citric acid 75kg, thionamic acid 14kg, Sunmorl N 60S 5kg, poly (sodium aspartate) 2.8kg, thiocarbamide 1.6kg and 2,2-, two bromo-3-nitrilo propionic acid amide 1.6kg.Above-mentioned raw materials is put into cone-type mixer, mix and get product.
Corrosion test: above-mentioned dirt remover is mixed with 5% the clean-out system aqueous solution with deionized water, the clean-out system aqueous solution with above-mentioned 5% is positioned in the Erlenmeyer flask of 500ml, the test piece of unlike material is hung on respectively in the Erlenmeyer flask that fills 5% the clean-out system aqueous solution, then Erlenmeyer flask is positioned in 50 ℃ the water bath with thermostatic control static test 12 hours.Measure corrosion rate with reference to the chemical industry standard HG/T2387-2007 of the People's Republic of China (PRC) " industrial equipments matting quality standard ".Its result such as table three:
The corrosion rate (g/m2.h) of table three degradable environment-friendly type dirt remover of the present invention
Biodegradability test: when carrying out the biological degradability test, adopting the concentration of degradable environment-friendly type dirt remover is 50mg/L, with reference to the measuring method of biodegradable in " the synthetic and scale-inhibiting properties research of green bio polymeric polyaspartic acid " literary compositions such as " Treatment of Industrial Water " the 21st volume first phase Xiong Rongchun, its result such as table four:
The biological degradation rate (%) of table four degradable environment-friendly type dirt remover of the present invention
The scale removal test: lime scale is used in test, dirty thick 4mm, and temperature 50 C, the above-mentioned clean-out system aqueous solution of employing 5% is tested, and incrustation scale dissolved fully in 30 minutes.
Embodiment 3: preparation degradable environment-friendly type dirt remover 100kg, the raw materials used industrial goods that are.Citric acid 73kg, thionamic acid 16kg, Sunmorl N 60S 5kg, poly (sodium aspartate) 2.9kg, thiocarbamide 1.5kg and 2,2-, two bromo-3-nitrilo propionic acid amide 1.6kg.Above-mentioned raw materials is put into cone-type mixer, mix and get product.
Corrosion test: above-mentioned dirt remover is mixed with 5% the clean-out system aqueous solution with deionized water, the clean-out system aqueous solution with above-mentioned 5% is positioned in the Erlenmeyer flask of 500ml, the test piece of unlike material is hung on respectively in the Erlenmeyer flask that fills 5% the clean-out system aqueous solution, then Erlenmeyer flask is positioned in 50 ℃ the water bath with thermostatic control static test 12 hours.Measure corrosion rate with reference to the chemical industry standard HG/T2387-2007 of the People's Republic of China (PRC) " industrial equipments matting quality standard ".Its result such as table five:
The corrosion rate (g/m2.h) of table five degradable environment-friendly type dirt remover of the present invention
Biodegradability test: when carrying out the biological degradability test, adopting the concentration of degradable environment-friendly type dirt remover is 50mg/L, with reference to the measuring method of biodegradable in " the synthetic and scale-inhibiting properties research of green bio polymeric polyaspartic acid " literary compositions such as " Treatment of Industrial Water " the 21st volume first phase Xiong Rongchun, its result such as table six:
The biological degradation rate (%) of table six degradable environment-friendly type dirt remover of the present invention
The scale removal test: lime scale is used in test, dirty thick 4mm, and temperature 50 C, the above-mentioned clean-out system aqueous solution of employing 5% is tested, and incrustation scale dissolved fully in 30 minutes.
Claims (3)
1. degradable environment-friendly type dirt remover is characterized in that it comprises following weight percent component:
Citric acid 70～75%,
Thionamic acid 14～18%,
Sunmorl N 60S 5.0～6.0%,
Poly (sodium aspartate) 2.8～3.0%,
Thiocarbamide 1.4～1.6%,
2,2-, two bromo-3-nitrilo propionic acid amides 1.4～1.6%.
2. a kind of degradable environment-friendly type dirt remover according to claim 1 is characterized in that it comprises following weight percent component:
Citric acid 70%,
Thionamic acid 18%,
Sunmorl N 60S 6.0%,
Poly (sodium aspartate) 3.0%,
Thiocarbamide 1.4%,
2,2-, two bromo-3-nitrilo propionic acid amides 1.6%.
3. a kind of degradable environment-friendly type dirt remover according to claim 1 is characterized in that it comprises following weight percent component:
Citric acid 75%,
Thionamic acid 14%,
Sunmorl N 60S 5.0%,
Poly (sodium aspartate) 2.8%,
Thiocarbamide 1.6%,
2,2-, two bromo-3-nitrilo propionic acid amides 1.6%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010506449.7A CN102051628B (en) | 2010-10-14 | 2010-10-14 | Degradable environment-friendly dirt remover |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010506449.7A CN102051628B (en) | 2010-10-14 | 2010-10-14 | Degradable environment-friendly dirt remover |
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| CN102051628A CN102051628A (en) | 2011-05-11 |
| CN102051628B true CN102051628B (en) | 2013-03-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104878395B (en) * | 2015-04-15 | 2017-06-23 | 上海源育节能环保科技有限公司 | A kind of environmental protection cleaning agent and preparation method thereof |
| CN105731664B (en) * | 2016-04-14 | 2019-08-27 | 芜湖美的厨卫电器制造有限公司 | Scale remover and water heater |
| CN112980593A (en) * | 2021-02-08 | 2021-06-18 | 辽宁大学 | Active descaling powder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101950A (en) * | 1993-10-18 | 1995-04-26 | 北京柯力动力化学防腐技术开发公司 | Detergent for steel, aluminium and copper materials |
| CN1323750A (en) * | 2001-06-19 | 2001-11-28 | 华东理工大学 | Composite water treating agent with polyasparagic acid as main component |
| CN1436740A (en) * | 2002-02-07 | 2003-08-20 | 中国石油化工股份有限公司 | Corrosion inhibiting method for cooling water system of production equipment in shutdown period |
| CN101475878A (en) * | 2009-01-19 | 2009-07-08 | 大连三达奥克化学股份有限公司 | Cleaning agent and cleaning method for air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7597766B2 (en) * | 2007-08-03 | 2009-10-06 | American Sterilizer Company | Biodegradable detergent concentrate for medical instruments and equipment |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101950A (en) * | 1993-10-18 | 1995-04-26 | 北京柯力动力化学防腐技术开发公司 | Detergent for steel, aluminium and copper materials |
| CN1323750A (en) * | 2001-06-19 | 2001-11-28 | 华东理工大学 | Composite water treating agent with polyasparagic acid as main component |
| CN1436740A (en) * | 2002-02-07 | 2003-08-20 | 中国石油化工股份有限公司 | Corrosion inhibiting method for cooling water system of production equipment in shutdown period |
| CN101475878A (en) * | 2009-01-19 | 2009-07-08 | 大连三达奥克化学股份有限公司 | Cleaning agent and cleaning method for air conditioner |
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