CN103128273B - A kind of method for saponification of copper powder production - Google Patents
A kind of method for saponification of copper powder production Download PDFInfo
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- CN103128273B CN103128273B CN201110385480.4A CN201110385480A CN103128273B CN 103128273 B CN103128273 B CN 103128273B CN 201110385480 A CN201110385480 A CN 201110385480A CN 103128273 B CN103128273 B CN 103128273B
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Abstract
A kind of method for saponification of copper powder production, it is that saponification liquor is added in the copper powder of wet electrolysis, the saponification liquor is formed with reverse osmosis deaslination water mixed preparing using soap powder, and the mass percentage concentration for controlling sodium soap in the saponification liquor is 65~75%, saponification liquor pH 12.0~13.5；The pH of water is controlled 6.0~6.8 in wet copper powder.Using method for saponification of the present invention, final products oxygen content obtained can be made to control very low, be only 0.01~0.04%, the anti-oxidant phase was up to 8~12 months.Meanwhile there was only the 40% of soap using soap powder dosage, and soap powder lower than the price of soap 50%, and soap powder fusing time is short, has saved power consumption, the method for the present invention greatly reduces cost, improves economic benefit, has reached cost efficiency purpose.
Description
Technical field
The present invention relates to copper powder production fields, and in particular to the method for saponification in a kind of production of copper powder.
Background technology
Electrolytic copper powder, which passes through, during electrolysis produces copper powder washes powder, when pH value reaches neutrality, saponification liquor is added to stir,
Copper Powder Surface one layer of anti-oxidation film of generation, plays anti-oxidation purpose, for subsequent drying, reduction, cooling, sieves powder, final
Product creates condition.
The quality of saponification process determines the height of final copper powder oxygen content obtained, to determine the quality of product；
But it is higher to final copper powder product oxygen content after the saponification process of electrolytic copper powder at present, ideal not enough, while saponification liquor is adopted
It is higher with the preparation of industrial soap, cost, it is calculated with producing 6000 tons of electrolytic copper powder per year, 1 ton of electrolytic copper powder consumption 1.75kg soap, one
Year will use 10.5 tons of soap.
Invention content
The purpose of the present invention is to provide the method for saponification in a kind of copper powder production at low cost, high treating effect.
Purpose of the present invention is to what is be achieved through the following technical solutions：
A kind of method for saponification of copper powder production, is that saponification liquor is added in the copper powder of wet electrolysis, it is characterised in that：The soap
Changing liquid is formed with reverse osmosis deaslination water mixed preparing using soap powder, and the quality percentage for controlling sodium soap in the saponification liquor is dense
Degree is 65~75%, saponification liquor pH 12.0~13.5；The pH of water is controlled 6.0~6.8 in wet copper powder.Wherein, soap powder is industry
Leftover pieces in soap production, sodium soap content are 80%~90wt%；The reverse osmosis deaslination water is to use reverse osmosis dress
The water of processing is set, purity is high, is practically free of the impurity such as salt.
In order to further decrease the oxygen content of final copper powder product obtained, improve product quality, controlled in saponification bucket
Moisture content height in the wet copper powder is higher by 5~8cm of copper powder liquid level；Copper powder is 3 tons in wet copper powder, moisture content is 1.2~1.8 tons,
Saponification liquor dosage is 200~250L.
In order to further reduce the oxygen content of final copper powder product obtained, BTA is also added in saponification process（Benzo
Triazole）Corrosion inhibiter, addition is 100~150g, to handle in terms of 3 tons of copper powders.
Specifically, a kind of method for saponification of copper powder production, carries out as follows：
1. reverse osmosis deaslination water is added in saponification bucket, it is warming up to 100 DEG C；
2. again by soap powder（Sodium soap content 85%）It is added in saponification bucket, so that it is sufficiently stirred dissolving, be configured to aliphatic acid
Sodium content is the saponification liquor of 65~75wt%, pH 12.5；
3. the water pH value after washing electrolytic copper powder reaches 6.5, above-mentioned saponification liquor is drenched in electrolytic copper powder, is added
BTA（Benzotriazole）Corrosion inhibiter carries out saponification；
The height of the moisture content in the wet electrolytic copper powder is controlled in saponification bucket is higher by copper powder liquid level 7cm；Copper powder in wet copper powder
It it is 1.5 tons for 3 tons, moisture content, saponification liquor dosage is 200~230L；Above-mentioned addition BTA（Benzotriazole）The amount of corrosion inhibiter is
120g。
The present invention has the beneficial effect that：
Using method for saponification of the present invention, final products oxygen content obtained can be made to control very low, be only 0.01~
0.04%, the anti-oxidant phase was up to 8~12 months.Meanwhile there was only the 40% of soap using soap powder dosage, and soap powder is lower than the price of soap
50%, and soap powder fusing time is short, has saved power consumption, the method for the present invention greatly reduces cost, improves economic benefit,
Cost efficiency purpose is reached.
Specific implementation mode
The present invention is specifically described below by embodiment, it is necessary to which indicated herein is that following embodiment is only used
In invention is further explained, it should not be understood as limiting the scope of the invention, the people that is skilled in technique in the field
Member can make some nonessential modifications and adaptations according to aforementioned present invention content to the present invention.
Embodiment 1
A kind of method for saponification of copper powder production, carries out as follows：
1. reverse osmosis deaslination water is added in saponification bucket, it is warming up to 100 DEG C；
2. again by soap powder（Sodium soap content 85%）It is added in saponification bucket, so that it is sufficiently stirred dissolving, be configured to aliphatic acid
Sodium content is the saponification liquor of 65~75wt%, pH 12.5；
3. the water pH value after washing electrolytic copper powder reaches 6.5, above-mentioned saponification liquor is drenched in electrolytic copper powder, is added
BTA（Benzotriazole）Corrosion inhibiter carries out saponification；
The height of the moisture content in the wet electrolytic copper powder is controlled in saponification bucket is higher by copper powder liquid level 7cm；Copper powder in wet copper powder
It it is 1.5 tons for 3 tons, moisture content, saponification liquor dosage is 200~230L；Above-mentioned addition BTA（Benzotriazole）The amount of corrosion inhibiter is
120g。
Through conventional drying, reduction, cooling, sieve powder, mixed powder and etc. obtain product, copper powder oxygen content obtained is only
0.01%, the anti-oxidant phase was up to 12 months；Saponification is of low cost, and low energy consumption.
Embodiment 2
A kind of method for saponification of copper powder production, carries out as follows：
1. reverse osmosis deaslination water is added in saponification bucket, it is warming up to 100 DEG C；
2. again by soap powder（80 wt% of sodium soap content）It is added in saponification bucket, so that it is sufficiently stirred dissolving, be configured to fat
Fat acid sodium content is the saponification liquor of 65%~75%, pH 13.5；
3. the water pH value after washing electrolytic copper powder reaches 6.0, above-mentioned saponification liquor is drenched in electrolytic copper powder, is added
BTA（Benzotriazole）Corrosion inhibiter carries out saponification；
The height of the moisture content in the wet electrolytic copper powder is controlled in saponification bucket is higher by copper powder liquid level 8cm；Copper powder in wet copper powder
It it is 1.8 tons for 3 tons, moisture content, saponification liquor dosage is 250L；Above-mentioned addition BTA（Benzotriazole）The amount of corrosion inhibiter is 115g.
Through conventional drying, reduction, cooling, sieve powder, mixed powder and etc. obtain product, copper powder oxygen content obtained is only
0.03%, the anti-oxidant phase was up to 10 months；Saponification is of low cost, and low energy consumption.
Embodiment 3
A kind of method for saponification of copper powder production, carries out as follows：
1. reverse osmosis deaslination water is added in saponification bucket, it is warming up to 100 DEG C；
2. again by soap powder（Sodium soap content 90wt%）It is added in saponification bucket, so that it is sufficiently stirred dissolving, be configured to fat
Sour sodium content is the saponification liquor of 65%~75%, pH 12.0；
3. the water pH value after washing electrolytic copper powder reaches 6.8, above-mentioned saponification liquor is drenched in electrolytic copper powder, is added
BTA（Benzotriazole）Corrosion inhibiter carries out saponification；
The height of the moisture content in the wet electrolytic copper powder is controlled in saponification bucket is higher by copper powder liquid level 5cm；Copper powder in wet copper powder
It it is 1.2 tons for 3 tons, moisture content, saponification liquor dosage is 200L；Above-mentioned addition BTA（Benzotriazole）The amount of corrosion inhibiter is 150g.
Through conventional drying, reduction, cooling, sieve powder, mixed powder and etc. obtain product, copper powder oxygen content obtained is only
0.03%, the anti-oxidant phase was up to 10 months；Saponification is of low cost, and low energy consumption.
Comparative example 1
A kind of method for saponification of copper powder production, carries out as follows：
1. drainage was added in saponification bucket, it is warming up to 100 DEG C；
2. industrial soap is added in saponification bucket again, it is made to be sufficiently stirred dissolving, be configured to sodium soap content for 35~
The saponification liquor of 45wt%, pH 10.3~11.5；
3. the water pH value after washing electrolytic copper powder is up to neutrality, above-mentioned saponification liquor is drenched in electrolytic copper powder, soap is carried out
Change reaction；
The height of the moisture content in the wet electrolytic copper powder is controlled in saponification bucket is higher by 3~4cm of copper powder liquid level；Copper in wet copper powder
Powder is 3 tons, moisture content is 1.5 tons, and saponification liquor dosage is 160L.
Through conventional drying, reduction, cooling, sieve powder, mixed powder and etc. obtain product, copper powder oxygen content obtained is only 0.07
~0.1%, the anti-oxidant phase is 3~4 months.
Claims (2)
1. a kind of method for saponification of copper powder production, is that saponification liquor is added in the copper powder of wet electrolysis, it is characterised in that：The soap
Changing liquid is formed with reverse osmosis deaslination water mixed preparing using soap powder, and the quality percentage for controlling sodium soap in the saponification liquor is dense
Degree is 65%~75%, saponification liquor pH 12.0~13.5；The pH of water is controlled 6.0~6.8, in saponification in wet copper powder
The height of the moisture content in the wet copper powder is controlled in bucket is higher by 5~8cm of copper powder liquid level；Copper powder is 3 tons in wet copper powder, moisture content is
1.2~1.8 tons, saponification liquor dosage is 200~250L.
2. method for saponification as described in claim 1, it is characterised in that：BTA also is added in the saponification process（Benzo three
Nitrogen azoles）Corrosion inhibiter, addition is 100~150g, to handle in terms of 3 tons of copper powders.
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| CN109881199A (en) * | 2019-04-10 | 2019-06-14 | 深圳市铿东科技有限公司 | A kind of regenerating alkaline etching liquid and its copper recovery system |
| CN111364068A (en) * | 2020-04-27 | 2020-07-03 | 阳谷祥光铜业有限公司 | Preparation method of micron copper powder |
| CN112808996B (en) * | 2020-12-30 | 2023-03-14 | 重庆宇泰金属材料有限公司 | Copper powder washing process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05209236A (en) * | 1992-01-28 | 1993-08-20 | Isao Kuboyama | Method for purifying powder |
| CN1356189A (en) * | 2000-12-02 | 2002-07-03 | 王有林 | Antioxidizing agent for metal powder |
| CN101200003A (en) * | 2006-12-12 | 2008-06-18 | 北京有色金属研究总院 | Preparing process for copper iron compound powder by waste cupric liquor |
| CN101935839A (en) * | 2010-09-01 | 2011-01-05 | 六安市晖润粉末新材料有限公司 | Protective liquid for preventing oxidation of copper powder, and preparation method and using method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736338B (en) * | 2009-11-25 | 2012-06-27 | 中南大学 | Composite antioxidant applied to copper powder |
-
2011
- 2011-11-28 CN CN201110385480.4A patent/CN103128273B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05209236A (en) * | 1992-01-28 | 1993-08-20 | Isao Kuboyama | Method for purifying powder |
| CN1356189A (en) * | 2000-12-02 | 2002-07-03 | 王有林 | Antioxidizing agent for metal powder |
| CN101200003A (en) * | 2006-12-12 | 2008-06-18 | 北京有色金属研究总院 | Preparing process for copper iron compound powder by waste cupric liquor |
| CN101935839A (en) * | 2010-09-01 | 2011-01-05 | 六安市晖润粉末新材料有限公司 | Protective liquid for preventing oxidation of copper powder, and preparation method and using method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 铜粉抗氧化性处理技术的进展;常仕英;《粉末冶金工业》;20070228;第17卷(第1期);第49-53页 * |
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Effective date of registration: 20170122 Address after: 401431 Sanjiang street, Chongqing District, Qijiang liberated area Applicant after: Chongqing You Yanchongye novel material company limited Address before: 401431 Sanjiang street, Qijiang, Chongqing Applicant before: Chongqing Huahao Smelting Co., Ltd. |
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