CN105220166A - A kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof - Google Patents

A kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof Download PDF

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Publication number
CN105220166A
CN105220166A CN201510627145.9A CN201510627145A CN105220166A CN 105220166 A CN105220166 A CN 105220166A CN 201510627145 A CN201510627145 A CN 201510627145A CN 105220166 A CN105220166 A CN 105220166A
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China
Prior art keywords
agent
weight percent
environment
phosphorous
painting dressing
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Pending
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CN201510627145.9A
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Chinese (zh)
Inventor
马颖
庞涛
程鹏
郎丰军
黄先球
石争鸣
陈叶清
何锐
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Wuhan Iron and Steel Co Ltd
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Wuhan Iron and Steel Group Corp
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Application filed by Wuhan Iron and Steel Group Corp filed Critical Wuhan Iron and Steel Group Corp
Priority to CN201510627145.9A priority Critical patent/CN105220166A/en
Publication of CN105220166A publication Critical patent/CN105220166A/en
Pending legal-status Critical Current

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Abstract

The present invention discloses a kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof, described grease-removing agent comprises: alkaline matter, comprise sodium hydroxide and potassium hydroxide, the weight percent of described sodium hydroxide and described potassium hydroxide is respectively 5%-20% and 10%-25%; Auxiliary cleaning agent, adopt sodium carbonate, weight percent is 1%-3%; Sequestrant, be Trisodium Citrate and diethylene triaminepentaacetic acid(DTPA) sodium, weight percent is respectively 2%-5% and 3%-6%; Tensio-active agent, comprises ester analog anion surfactants and fatty alcohol-polyoxyethylene ether, and weight percent is respectively 1%-3% and 1%-4% deionized water, and weight ratio is 34%-77%.Above-mentioned painting dressing automobiles Environment-friendlydegreasant degreasant be not phosphorous and nitrogen without phosphorous alkali environment-friendly grease-removing agent, with former phosphorous alkaline defatting agent, there is equal degreasing performance, solve in prior art owing to there being phosphorous material in alkaline defatting agent, certain difficulty is caused to follow-up processing wastewater process, adds the discharge of pollutent and the technical problem of subsequent treatment cost.

Description

A kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof
Technical field
The present invention relates to application techniques field, particularly relate to a kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof.
Background technology
Degreasing process mainly utilizes alkali lye to remove the greasy dirt of workpiece surface to the saponification of grease, emulsification, solubilizing reaction, and be one of operation of outbalance in whole coating process, the quality of its Disposal quality is the key ensureing painting quality.In general alkaline defatting agent, due to phosphorous material conventional in washing assistant, additive, certain difficulty is caused to follow-up processing wastewater process, adds discharge and the subsequent treatment cost of pollutent.
Summary of the invention
The application provides a kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof, solve in prior art owing to there being phosphorous material in alkaline defatting agent, certain difficulty is caused to follow-up processing wastewater process, adds the discharge of pollutent and the technical problem of subsequent treatment cost.
The application provides a kind of painting dressing automobiles Environment-friendlydegreasant degreasant, and described grease-removing agent comprises:
Alkaline matter, comprises sodium hydroxide and potassium hydroxide, and the weight percent of described sodium hydroxide and described potassium hydroxide is respectively 5%-20% and 10%-25%;
Auxiliary cleaning agent, adopt sodium carbonate, weight percent is 1%-3%;
Sequestrant, be Trisodium Citrate and diethylene triaminepentaacetic acid(DTPA) sodium, weight percent is respectively 2%-5% and 3%-6%;
Tensio-active agent, comprise ester analog anion surfactants and fatty alcohol-polyoxyethylene ether, weight percent is respectively 1%-3% and 1%-4%
Deionized water, weight ratio is 34%-77%.
The application also provides a kind of using method of painting dressing automobiles Environment-friendlydegreasant degreasant, and for using described painting dressing automobiles Environment-friendlydegreasant degreasant, described using method comprises:
Described grease-removing agent is carried out skimming treatment by 2%-4% concentration, and described skimming treatment temperature is 35-45 DEG C, and the described skimming treatment time is 120-180 second.
The application's beneficial effect is as follows:
Above-mentioned painting dressing automobiles Environment-friendlydegreasant degreasant be not phosphorous and nitrogen without phosphorous alkali environment-friendly grease-removing agent, with former phosphorous alkaline defatting agent, there is equal degreasing performance, solve in prior art owing to there being phosphorous material in alkaline defatting agent, certain difficulty is caused to follow-up processing wastewater process, adds the discharge of pollutent and the technical problem of subsequent treatment cost.
Described alkaline matter select sodium hydroxide and potassium hydroxide composite, vegetable and animals oils generation saponification reaction on steel plate and can be sticked to, is well dissolved in clean-out system, the animal-plant oil on cold rolled automobile sheet is removed.
Described auxiliary cleaning agent adopts sodium carbonate, and Main Function is softening water hardness, provides alkaline buffer environment and wetting, emulsification, suspension, dispersion spot dirt, prevents the precipitation again of dirt from adhering to.Selected inorganic salt also have the ability of certain cleaning greasy dirt, can strengthen the deoiling effect of clean-out system.
Adopt Trisodium Citrate and diethylene triaminepentaacetic acid(DTPA) sodium as sequestrant, coordination compound can be formed with metal ions such as Fe, Ca, the Mg in scavenging solution, reduce the possibility that lipid acid that these metal ions and fat saponification formed is combined into metallic soap, thus avoid the formation of water-fast heavy metal soap and again adhere to band steel and cause cleaning efficiency to decline.
Adopt ester analog anion surfactants and fatty alcohol-polyoxyethylene ether as tensio-active agent, lipophilic group absorption dirt, hydrophilic radical is water-soluble, simultaneously due to the existence of these two kinds of groups, the surface tension of water significantly reduces, original immiscible oil and water are connected, makes lipophilic group become fine particle together with dirt companion hydrophilic radical and be scattered in water, reach the object of decontamination.In addition, tensio-active agent also has the effect of emulsification, wetting, dispersion.
Embodiment
The embodiment of the present application is by providing a kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof, solve in prior art owing to there being phosphorous material in alkaline defatting agent, certain difficulty is caused to follow-up processing wastewater process, adds the discharge of pollutent and the technical problem of subsequent treatment cost.
Technical scheme in the embodiment of the present application is for solving the problems of the technologies described above, and general thought is as follows:
A kind of painting dressing automobiles Environment-friendlydegreasant degreasant, described grease-removing agent comprises:
Alkaline matter, comprises sodium hydroxide and potassium hydroxide, and the weight percent of described sodium hydroxide and described potassium hydroxide is respectively 5%-20% and 10%-25%;
Auxiliary cleaning agent, adopt sodium carbonate, weight percent is 1%-3%;
Sequestrant, be Trisodium Citrate and diethylene triaminepentaacetic acid(DTPA) sodium, weight percent is respectively 2%-5% and 3%-6%;
Tensio-active agent, comprise ester analog anion surfactants and fatty alcohol-polyoxyethylene ether, weight percent is respectively 1%-3% and 1%-4%
Deionized water, weight ratio is 34%-77%.
Above-mentioned painting dressing automobiles Environment-friendlydegreasant degreasant be not phosphorous and nitrogen without phosphorous alkali environment-friendly grease-removing agent, with former phosphorous alkaline defatting agent, there is equal degreasing performance, solve in prior art owing to there being phosphorous material in alkaline defatting agent, certain difficulty is caused to follow-up processing wastewater process, adds the discharge of pollutent and the technical problem of subsequent treatment cost.
In order to better understand technique scheme, below in conjunction with concrete embodiment, technique scheme is described in detail.
In order to solve in prior art owing to there being phosphorous material in alkaline defatting agent, certain difficulty is caused to follow-up processing wastewater process, add the discharge of pollutent and the technical problem of subsequent treatment cost, a kind of not phosphorous and nitrogen of the application without phosphorous alkali environment-friendly grease-removing agent, with former phosphorous alkaline defatting agent, there is equal degreasing performance.
The painting dressing automobiles Environment-friendlydegreasant degreasant that the application provides comprises: alkaline matter, auxiliary cleaning agent, sequestrant, tensio-active agent and deionized water.Wherein, described alkaline matter comprises sodium hydroxide and potassium hydroxide, and the weight percent of described sodium hydroxide and described potassium hydroxide is respectively 5%-20% and 10%-25%.Described auxiliary cleaning agent adopts sodium carbonate, and weight percent is 1%-3%.Described sequestrant is Trisodium Citrate and diethylene triaminepentaacetic acid(DTPA) sodium, and weight percent is respectively 2%-5% and 3%-6%.Described tensio-active agent comprises ester analog anion surfactants and fatty alcohol-polyoxyethylene ether, and weight percent is respectively 1%-3% and 1%-4%.All the other are deionized water, and weight ratio is 34%-77%.
Each compositional selecting and the principle of qualification of the painting dressing automobiles Environment-friendlydegreasant degreasant of the application are as follows:
1. alkaline matter described in select sodium hydroxide and potassium hydroxide composite, vegetable and animals oils generation saponification reaction on steel plate and can be sticked to, is well dissolved in clean-out system, the animal-plant oil on cold rolled automobile sheet is removed.
2. auxiliary cleaning agent described in adopts sodium carbonate, and Main Function is softening water hardness, provides alkaline buffer environment and wetting, emulsification, suspension, dispersion spot dirt, prevents the precipitation again of dirt from adhering to.Selected inorganic salt also have the ability of certain cleaning greasy dirt, can strengthen the deoiling effect of clean-out system.
3. adopt Trisodium Citrate and diethylene triaminepentaacetic acid(DTPA) sodium as sequestrant, coordination compound can be formed with metal ions such as Fe, Ca, the Mg in scavenging solution, reduce the possibility that lipid acid that these metal ions and fat saponification formed is combined into metallic soap, thus avoid the formation of water-fast heavy metal soap and again adhere to band steel and cause cleaning efficiency to decline.
4. adopt ester analog anion surfactants and fatty alcohol-polyoxyethylene ether as tensio-active agent, lipophilic group absorption dirt, hydrophilic radical is water-soluble, simultaneously due to the existence of these two kinds of groups, the surface tension of water significantly reduces, original immiscible oil and water are connected, makes lipophilic group become fine particle together with dirt companion hydrophilic radical and be scattered in water, reach the object of decontamination.In addition, tensio-active agent also has the effect of emulsification, wetting, dispersion.
The application also provides a kind of using method of painting dressing automobiles Environment-friendlydegreasant degreasant:
Described grease-removing agent is carried out skimming treatment by 2%-4% concentration, and described skimming treatment temperature is 35-45 DEG C, and the described skimming treatment time is 120-180 second.
Be described in further detail below in conjunction with a kind of painting dressing automobiles Environment-friendlydegreasant degreasant of concrete embodiment to the application.
Example 1:
In existing container, adding weight ratio is the water of 77% and the auxiliary cleaning agent sodium carbonate of 1%, after stirring, add alkaline matter by 5% sodium hydroxide with 10% potassium hydroxide is composite forms, after basic salt fully dissolves, add sequestrant 2% Trisodium Citrate and 3% diethylene triaminepentaacetic acid(DTPA) sodium composition, finally add tensio-active agent and be made up of 1% ester analog anion surfactants and 1% fatty alcohol-polyoxyethylene ether, stir all with can obtain this painting dressing automobiles Environment-friendlydegreasant degreasant.
Example 2:
In existing container, adding weight ratio is the water of 34% and the auxiliary cleaning agent sodium carbonate of 3%, after stirring, add alkaline matter by 20% sodium hydroxide with 25% potassium hydroxide is composite forms, after basic salt fully dissolves, add sequestrant 5% Trisodium Citrate and 6% diethylene triaminepentaacetic acid(DTPA) sodium composition, finally add tensio-active agent and be made up of 3% ester analog anion surfactants and 4% fatty alcohol-polyoxyethylene ether, stir all with can obtain this painting dressing automobiles Environment-friendlydegreasant degreasant.
Example 3:
In existing container, adding weight ratio is the water of 60% and the auxiliary cleaning agent sodium carbonate of 2%, after stirring, add alkaline matter by 10% sodium hydroxide with 15% potassium hydroxide is composite forms, after basic salt fully dissolves, add sequestrant 3% Trisodium Citrate and 5% diethylene triaminepentaacetic acid(DTPA) sodium composition, finally add tensio-active agent and be made up of 2% ester analog anion surfactants and 3% fatty alcohol-polyoxyethylene ether, stir all with can obtain this painting dressing automobiles Environment-friendlydegreasant degreasant.
Example 4:
In existing container, adding weight ratio is the water of 51% and the auxiliary cleaning agent sodium carbonate of 2%, after stirring, add alkaline matter by 15% sodium hydroxide with 20% potassium hydroxide is composite forms, after basic salt fully dissolves, add sequestrant 4% Trisodium Citrate and 4% diethylene triaminepentaacetic acid(DTPA) sodium composition, finally add tensio-active agent and be made up of 2% ester analog anion surfactants and 2% fatty alcohol-polyoxyethylene ether, stir all with can obtain this painting dressing automobiles Environment-friendlydegreasant degreasant.
Example 5:
In existing container, adding weight ratio is the water of 64% and the auxiliary cleaning agent sodium carbonate of 2%, after stirring, add alkaline matter by 6% sodium hydroxide with 16% potassium hydroxide is composite forms, after basic salt fully dissolves, add sequestrant 5% Trisodium Citrate and 3% diethylene triaminepentaacetic acid(DTPA) sodium composition, finally add tensio-active agent and be made up of 3% ester analog anion surfactants and 1% fatty alcohol-polyoxyethylene ether, stir all with can obtain this painting dressing automobiles Environment-friendlydegreasant degreasant.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (2)

1. a painting dressing automobiles Environment-friendlydegreasant degreasant, is characterized in that, described grease-removing agent comprises:
Alkaline matter, comprises sodium hydroxide and potassium hydroxide, and the weight percent of described sodium hydroxide and described potassium hydroxide is respectively 5%-20% and 10%-25%;
Auxiliary cleaning agent, adopt sodium carbonate, weight percent is 1%-3%;
Sequestrant, be Trisodium Citrate and diethylene triaminepentaacetic acid(DTPA) sodium, weight percent is respectively 2%-5% and 3%-6%;
Tensio-active agent, comprise ester analog anion surfactants and fatty alcohol-polyoxyethylene ether, weight percent is respectively 1%-3% and 1%-4%
Deionized water, weight ratio is 34%-77%.
2. a using method for painting dressing automobiles Environment-friendlydegreasant degreasant, for using as painting dressing automobiles Environment-friendlydegreasant degreasant as described in claim 1, it is characterized in that, described using method comprises:
Described grease-removing agent is carried out skimming treatment by 2%-4% concentration, and described skimming treatment temperature is 35-45 DEG C, and the described skimming treatment time is 120-180 second.
CN201510627145.9A 2015-09-28 2015-09-28 A kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof Pending CN105220166A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110512219A (en) * 2019-09-28 2019-11-29 立邦涂料(重庆)化工有限公司 A kind of low-temperature environment-friendly liquid automobile pre-treatment degreasing agent

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101432464A (en) * 2006-03-23 2009-05-13 英国M-I化学制品有限公司 A method for dissolving oilfield scale
CN103469232A (en) * 2013-07-30 2013-12-25 辽宁科技大学 Degreasant composition
CN104674251A (en) * 2015-03-12 2015-06-03 武汉钢铁(集团)公司 Degreasing agent for cold-rolled continuous annealing unit
CN104694946A (en) * 2015-03-13 2015-06-10 武汉钢铁(集团)公司 Phosphorus-free degreaser
CN105247102A (en) * 2013-03-16 2016-01-13 Prc-迪索托国际公司 Metal complexing agents as corrosion inhibitors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101432464A (en) * 2006-03-23 2009-05-13 英国M-I化学制品有限公司 A method for dissolving oilfield scale
CN105247102A (en) * 2013-03-16 2016-01-13 Prc-迪索托国际公司 Metal complexing agents as corrosion inhibitors
CN103469232A (en) * 2013-07-30 2013-12-25 辽宁科技大学 Degreasant composition
CN104674251A (en) * 2015-03-12 2015-06-03 武汉钢铁(集团)公司 Degreasing agent for cold-rolled continuous annealing unit
CN104694946A (en) * 2015-03-13 2015-06-10 武汉钢铁(集团)公司 Phosphorus-free degreaser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110512219A (en) * 2019-09-28 2019-11-29 立邦涂料(重庆)化工有限公司 A kind of low-temperature environment-friendly liquid automobile pre-treatment degreasing agent

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Effective date of registration: 20170711

Address after: 430080 Qingshan District stock company of Hubei, Wuhan Province

Applicant after: Wuhan iron and Steel Company Limited

Address before: 430080 Friendship Avenue, Hubei, Wuhan, No. 999

Applicant before: Wuhan Iron & Steel (Group) Corp.

RJ01 Rejection of invention patent application after publication
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Application publication date: 20160106