CN104017677A - Detergent for removing gypsum residues on dewaxing handicraft - Google Patents
Detergent for removing gypsum residues on dewaxing handicraft Download PDFInfo
- Publication number
- CN104017677A CN104017677A CN201410302434.7A CN201410302434A CN104017677A CN 104017677 A CN104017677 A CN 104017677A CN 201410302434 A CN201410302434 A CN 201410302434A CN 104017677 A CN104017677 A CN 104017677A
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- salt
- sodium
- ammonium
- sylvite
- acid
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- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to a detergent for removing gypsum residues on a dewaxing handicraft. The stock solution is composed of the following components in parts by weight: 1-30 parts of penetrant, 5-50 parts of precipitant, 1-4.4 parts of pH regulator, 0.1-0.3 part of corrosion inhibitor, 0.1-1 part of surfactant and 30-92.7 parts of water. The penetrant is one or mixture of more of the following acids or salts capable of providing free fluorine ions: hydrofluoric acid, and sodium salt or potassium salt or ammonium salt thereof; fluoboric acid, and potassium salt or sodium salt or ammonium salt thereof; sodium bifluoride; potassium hydrogen fluoride; and ammonium acid fluoride. The detergent has favorable gypsum residue removal effect, does not generate the volatile toxic gas hydrofluoric acid, and has the characteristics of environmental protection, high economy and high efficiency.
Description
Technical field
The present invention relates to industry cleaning link technical field, be specifically related to a kind of clean-out system that can effectively remove the residual dirt of gypsum on lost wax process goods.
Background technology
Wax-loss casting process is the Main Means that the goods such as current jewellery, artwork are produced in enormous quantities.Be widely used in the molding moulding of the metals such as gold and silver, copper, lead, gunmetal.In product surface prepared by lost wax process, gap, there are a large amount of gypsum (CaSO
4) residual, thoroughly not removing these residual dirts can affect subsequent handling as electroplating surface, covers with paint, lacquer, colour wash, etc. processing etc., becomes unacceptable product.
The method that traditional technology is removed the residual dirt of gypsum is to adopt hydrofluoric acid, and reaction principle is as follows:
CaSO
4 + HF = CaF
2 + H
2SO
4
Hydrofluoric acid in this method, belonging to the corrodibility of using of keeping under strict control has harm chemical.In production operation, need constantly to add a large amount of hydrofluoric acid, hydrogen fluoride smog volatilization in job site is serious, grievous injury workers ' health and pollution surrounding enviroment.Along with the requirement of environmental protection and labour protection is day by day strict, this method is urgently improved.But the effect of removing gypsum due to hydrofluoric acid is better, and this method is still widely used at present in actual production, there is no effective alternative means.Also have no Patents or bibliographical information.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of and do not use hypertoxic hydrofluoric acid for removing the clean-out system of the residual dirt of gypsum on lost wax process goods, do not produce volatility toxic gas, there is good removing effect, can long-acting maintenance use, there is environmental protection, efficiently feature.
In order to solve the problems of the technologies described above, the present invention proposes following technical scheme: a kind of for removing the clean-out system of the residual dirt of gypsum on lost wax process goods, its stoste is comprised of the following component of calculating according to parts by weight:
Permeate agent 1-30 part;
Precipitation agent 5-50 part;
PH value conditioning agent 1-4.4 part;
Corrosion inhibitor 0.1-0.3 part;
Tensio-active agent 0.1-1 part;
Water 30-92.7 part;
Described permeate agent is followingly can provide the acid of free fluorine ion or one or more the mixture in salt: hydrofluoric acid and sodium salt thereof or sylvite or ammonium salt; Fluoroboric acid and sylvite thereof or sodium salt or ammonium salt; Sodium hydrogen fluoride; Potassium bifluoride; Ammonium acid fluoride;
Described precipitation agent is following one or more the mixture that can provide in phosphate radical material: phosphoric acid; The sodium salt of phosphoric acid or sylvite or ammonium salt; Disodium-hydrogen salt or sylvite or ammonium salt; Biphosphate sodium salt or sylvite or ammonium salt; Tetra-sodium; The sodium salt of tetra-sodium or sylvite or ammonium salt; Hexa metaphosphoric acid; The sodium salt of Sodium hexametaphosphate 99 or sylvite or ammonium salt;
Described pH value conditioning agent is one or more the mixture in following material: phosphoric acid, sodium phosphate salt, potassium phosphate salt, ammonium phosphate salt, disodium-hydrogen salt, potassium phosphate,monobasic salt, ammonium hydrogen phosphate salt;
Described corrosion inhibitor is one or more the mixture in following material: benzotriazole, tetrahydroglyoxaline or NaNO
2.
The further restriction of technique scheme is: described tensio-active agent can be chosen one or more the mixture in anionic, oleate soap class, ethoxylated alkyl sulfate, nonionogenic tenside alkylphenol polyoxyethylene.
Compared with prior art, the present invention has following beneficial effect:
1, in formula of the present invention, by phosphate radical and CaF
2reaction generates the more calcium phosphate (Ca of indissoluble
3(PO
4)
2solubility product parameter is 2.0 * 10
-29), discharge fluorion, the F in formula simultaneously
-totally there is no minimizing, removing what in gypsum process, consume is phosphate radical, so, in scavenging solution working process as long as constantly supplement precipitation agent phosphate radical, just can long-acting maintenance use.
2, the present invention, for removing the clean-out system of the residual dirt of gypsum on lost wax process goods, has the effect of the good residual dirt of removing gypsum, does not produce volatility toxic gas hydrofluoric acid in use procedure, and can long-acting maintenance use, and has the feature of environmental protection, economical and efficient.
Embodiment
The present invention proposes a kind of for removing the clean-out system of the residual dirt of gypsum on lost wax process goods, and its stoste is comprised of the following component of calculating according to parts by weight:
Permeate agent 1-30 part;
Precipitation agent 5-50 part;
PH value conditioning agent 1-4.4 part;
Corrosion inhibitor 0.1-0.3 part;
Tensio-active agent 0.1-1 part;
Water 30-92.7 part.
Described permeate agent is followingly can provide the acid of free fluorine ion or one or more the mixture in salt: hydrofluoric acid and sodium salt thereof or sylvite or ammonium salt; Fluoroboric acid and sylvite thereof or sodium salt or ammonium salt; Sodium hydrogen fluoride; Potassium bifluoride; Ammonium acid fluoride.
Described precipitation agent is following one or more the mixture that can provide in phosphate radical material: phosphoric acid; The sodium salt of phosphoric acid or sylvite or ammonium salt; Disodium-hydrogen salt or sylvite or ammonium salt; Biphosphate sodium salt or sylvite or ammonium salt; Tetra-sodium; The sodium salt of tetra-sodium or sylvite or ammonium salt; Hexa metaphosphoric acid; The sodium salt of Sodium hexametaphosphate 99 or sylvite or ammonium salt.
Described pH value conditioning agent is one or more the mixture in following material: phosphoric acid, sodium phosphate salt, potassium phosphate salt, ammonium phosphate salt, disodium-hydrogen salt, potassium phosphate,monobasic salt, ammonium hydrogen phosphate salt.
Described pH value conditioning agent can be also other alkali or the salt that can regulate pH value, as NaOH, and Na
2cO
3etc. common alkali or salt.
Described corrosion inhibitor can prevent corrosion of metal in cleaning and subsequent process, according to the metallic substance of institute's treatment articles, determines.
Described corrosion inhibitor is one or more the mixture in following material: benzotriazole, tetrahydroglyoxaline or NaNO
2.
The effect of described tensio-active agent is that auxiliary permeate agent infiltrates goods gap, and the precipitation preventing is attached to product surface, and foam can effectively intercept harmful smog.
Described tensio-active agent can be chosen anion surfactant K12 (sodium lauryl sulphate), oleate soap class, AES(ethoxylated alkyl sulfate), one or more the mixture in non-ionic surfactant OP-10 (alkylphenol polyoxyethylene) and other tensio-active agent.
The present invention is a kind of as follows for removing the preparation method of the clean-out system of the residual dirt of gypsum on lost wax process goods: by above-mentioned precipitation agent, corrosion inhibitor, tensio-active agent by the formula ratio dissolving that is added to the water, add again permeate agent to mix, then by pH adjusting agent, regulate pH value between 4.5-8.0.
Method And Principle of the present invention can represent with following equation:
CaSO
4 + 2F
- = CaF
2 + SO
4 2-
3CaF
2 + 2PO
4 3- = Ca
3(PO
4)
2 + 6F
-
CaSO
4solubility product parameter is 3.2 * 10
-7, CaF
2solubility product parameter is 4.0 * 10
-11(25 ℃, lower same).By permeate agent F
-first disintegrate the residual dirt of gypsum, generate and compare CaSO
4the Calcium Fluoride (Fluorspan) of indissoluble, then by phosphate radical and CaF
2reaction generates the more calcium phosphate (Ca of indissoluble
3(PO
4)
2solubility product parameter is 2.0 * 10
-29), discharge fluorion simultaneously.F in formula
-totally there is no minimizing, removing what in gypsum process, consume is phosphate radical.So, in scavenging solution working process, as long as constantly supplement precipitation agent phosphate radical, just can long-acting maintenance use.
The present invention is a kind of for removing the using method of the clean-out system of the residual dirt of gypsum on lost wax process goods: at Ultrasonic Cleaners, add the above-mentioned stoste 2-10 of above-mentioned stoste or dilute with water doubly to become working fluid; At 60-95 ℃, 1-5min can remove the residual dirt of gypsum on goods completely.
Preparation Example one
Take following material:
Permeate agent 15kg, the specifically KF of 15kg;
Precipitation agent 50kg, specifically 30kg H
3pO
4with 20kg Na
2hPO
4;
PH value conditioning agent 4kg, specifically 4kg Na
3pO
4;
Corrosion inhibitor 0.2kg, specifically 0.2kg benzotriazole;
Tensio-active agent 1kg, specifically 1kg tensio-active agent K-12;
Water 30kg.
By 30kg H
3pO
4, 20kg Na
2hPO
4, 0.2kg benzotriazole, 1kg tensio-active agent K-12 join in 30kg water, after mixing, adds 15kg KF, fully mix, then add 4kg Na
3pO
4regulate pH value 4.5 left and right.Make clean-out system stoste.
During use, the above-mentioned stoste 5-10 of dilute with water doubly becomes working fluid; In Ultrasonic Cleaners, at 60-95 ℃, 1-5min can remove the residual dirt of gypsum on brass work completely.
Preparation Example two
Take following material:
Permeate agent 30kg, the specifically KF of 30kg;
Precipitation agent 30kg, specifically 30kg NaH
2pO
4;
PH value conditioning agent 4.4kg, specifically 4.4kg Na
3pO
4;
Corrosion inhibitor 0.3kg, specifically 0.3kg tetrahydroglyoxaline;
Tensio-active agent 0.1kg, specifically 0.1kg surfactant A ES;
Water 35kg.
30kg NaH
2pO
4, 0.3kg tetrahydroglyoxaline, 0.1kg surfactant A ES join in 35kg water, mix; Add again KF 30kg, fully mix at 40-50 ℃, then add 4.4 parts of Na
3pO
4regulate pH value in 4.5 left and right.Make clean-out system stoste.
During use, the above-mentioned stoste 5-10 of dilute with water doubly becomes working fluid; In Ultrasonic Cleaners, at 60-95 ℃, 1-5min can remove the residual dirt of gypsum on zinc alloy or gunmetal goods completely.
Preparation Example three
Take following material:
Permeate agent 1kg, the specifically NaF of 1kg;
Precipitation agent 5kg, specifically 5kg NaH
2pO
4;
PH value conditioning agent 1kg, specifically 1kg Na
3pO
4;
Corrosion inhibitor 0.1kg, specifically 0.1kg tetrahydroglyoxaline;
Tensio-active agent 0.2kg, specifically 0.2kg surfactant A ES;
Water 92.7kg.
By 5kg NaH
2pO
4, 0.1kg tetrahydroglyoxaline, 0.2kg surfactant A ES join in 92.7kg water, mix; Add again NaF 1kg, fully mix, then add 1kg Na
3pO
4regulate pH value in 4.5 left and right.Make clean-out system stoste.
During use, with 2 times of stoste or dilute with waters, become working fluid; In Ultrasonic Cleaners, 1-5min can remove the residual dirt of gypsum on metal completely at 60-95 ℃.
The invention has the beneficial effects as follows: the present invention is for removing the clean-out system of the residual dirt of gypsum on lost wax process goods, the effect with the good residual dirt of removing gypsum, in use procedure, do not produce volatility toxic gas hydrofluoric acid, and can long-acting maintenance use, there is the feature of environmental protection, economical and efficient.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (2)
1. for removing a clean-out system for the residual dirt of gypsum on lost wax process goods, its stoste is comprised of the following component of calculating according to parts by weight:
Permeate agent 1-30 part;
Precipitation agent 5-50 part;
PH value conditioning agent 1-4.4 part;
Corrosion inhibitor 0.1-0.3 part;
Tensio-active agent 0.1-1 part;
Water 30-92.7 part;
Described permeate agent is followingly can provide the acid of free fluorine ion or one or more the mixture in salt: hydrofluoric acid and sodium salt thereof or sylvite or ammonium salt; Fluoroboric acid and sylvite thereof or sodium salt or ammonium salt; Sodium hydrogen fluoride; Potassium bifluoride; Ammonium acid fluoride;
Described precipitation agent is following one or more the mixture that can provide in phosphate radical material: phosphoric acid; The sodium salt of phosphoric acid or sylvite or ammonium salt; Disodium-hydrogen salt or sylvite or ammonium salt; Biphosphate sodium salt or sylvite or ammonium salt; Tetra-sodium; The sodium salt of tetra-sodium or sylvite or ammonium salt; Hexa metaphosphoric acid; The sodium salt of Sodium hexametaphosphate 99 or sylvite or ammonium salt;
Described pH value conditioning agent is one or more the mixture in following material: phosphoric acid, sodium phosphate salt, potassium phosphate salt, ammonium phosphate salt, disodium-hydrogen salt, potassium phosphate,monobasic salt, ammonium hydrogen phosphate salt;
Described corrosion inhibitor is one or more the mixture in following material: benzotriazole, tetrahydroglyoxaline or NaNO
2.
2. according to claim 1 a kind of for removing the clean-out system of the residual dirt of gypsum on lost wax process goods, it is characterized in that: described tensio-active agent can be chosen one or more the mixture in anionic, oleate soap class, ethoxylated alkyl sulfate, nonionogenic tenside alkylphenol polyoxyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410302434.7A CN104017677B (en) | 2014-06-30 | 2014-06-30 | Detergent for removing gypsum residues on dewaxing handicraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410302434.7A CN104017677B (en) | 2014-06-30 | 2014-06-30 | Detergent for removing gypsum residues on dewaxing handicraft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104017677A true CN104017677A (en) | 2014-09-03 |
| CN104017677B CN104017677B (en) | 2017-02-15 |
Family
ID=51434687
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410302434.7A Active CN104017677B (en) | 2014-06-30 | 2014-06-30 | Detergent for removing gypsum residues on dewaxing handicraft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113736571A (en) * | 2021-08-30 | 2021-12-03 | 横店集团东磁股份有限公司 | Pickling solution for graphite boat, preparation method of pickling solution and graphite boat cleaning method using pickling solution |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069296A (en) * | 1991-08-12 | 1993-02-24 | 刘沣 | The cyclic cleaning method of calcium dirt and scavenging agent |
| CN101955863A (en) * | 2010-06-28 | 2011-01-26 | 金保全 | Neutral calcium sulfate scale cleaning agent |
| CN103242986A (en) * | 2013-04-16 | 2013-08-14 | 太仓市宝马环境工程有限公司 | Calcium sulfate scale cleaning agent and preparation method thereof |
-
2014
- 2014-06-30 CN CN201410302434.7A patent/CN104017677B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069296A (en) * | 1991-08-12 | 1993-02-24 | 刘沣 | The cyclic cleaning method of calcium dirt and scavenging agent |
| CN101955863A (en) * | 2010-06-28 | 2011-01-26 | 金保全 | Neutral calcium sulfate scale cleaning agent |
| CN103242986A (en) * | 2013-04-16 | 2013-08-14 | 太仓市宝马环境工程有限公司 | Calcium sulfate scale cleaning agent and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113736571A (en) * | 2021-08-30 | 2021-12-03 | 横店集团东磁股份有限公司 | Pickling solution for graphite boat, preparation method of pickling solution and graphite boat cleaning method using pickling solution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104017677B (en) | 2017-02-15 |
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Effective date of registration: 20210402 Address after: 518000 3rd floor, building 1, Qiyu electronic company, baishixia community, Fuyong street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN SURFA TECH Co.,Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili Lake Patentee before: SHENZHEN POLYTECHNIC |