CN104591258A - Method for producing oxide copper powder from copper sand - Google Patents
Method for producing oxide copper powder from copper sand Download PDFInfo
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- CN104591258A CN104591258A CN201510063011.9A CN201510063011A CN104591258A CN 104591258 A CN104591258 A CN 104591258A CN 201510063011 A CN201510063011 A CN 201510063011A CN 104591258 A CN104591258 A CN 104591258A
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- China
- Prior art keywords
- copper
- sand
- cupric oxide
- oxide powder
- powder
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G3/00—Compounds of copper
- C01G3/02—Oxides; Hydroxides
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for producing oxide copper powder from copper sand, relates to a method for utilizing waste copper and particularly relates to a method for producing copper powder from recycled waste copper sand. The method comprises the following process steps: sorting copper scrap and copper particle wastes produced in the factory production process serving as raw materials, removing impurity, milling by virtue of a pair of rollers, charging the raw materials into a disc, heating and oxidizing in an oxidation furnace, cooling, grinding, sieving and packaging. According to the method, the copper scrap and copper particle wastes produced in the factory production process are directly subjected to high-temperature oxidization to form oxide copper which is loose in structure and is easily broken and oxide copper is ground and sieved to obtain oxide copper powder with required particle size. The method is simple in process and device, convenient to operate and free of pollution during the production, the purity of prepared oxide copper depends on that of the original copper power, the product has controllable particle size and structure, the production efficiency is high, the production cost is low and oxide copper powder is suitable for industrial production.
Description
Technical field
The present invention relates to the method that copper scrap utilizes, especially utilize and reclaim the method that copper powder produced by copper scrap sand material.
Background technology
Cupric oxide powder range of application widely, can be used as the tinting material of glass, pottery, porcelain enamel industry, the anti-creasing agent of paint, the polishing agent of opticglass, manufactures the additive of dyestuff, and organic catalysis agent carrier, the pyrotechnics etc. of fireworks and firecrackers, also can apply as the interpolation of national defence exotic materials.Current China productive technology of powdered copper oxide mainly oxidization of copper powder method, the cuprous leaching method of volatile salt, copper sulfate calcination method and copper salt solution adds alkali synthesis method.Oxidization of copper powder method be with copper ash, copper ashes carries out oxide treatment for raw material heats in a furnace, goes out moisture in raw material and organic impurity in this process.The oxide compound produced after cooling and fragmentation, then carries out secondary oxidation in oxidized still, and the crude product cupric oxide obtained through centrifugation, drying, then is oxidized through repeatedly broken, thus obtained cupric oxide powder.This method energy consumption is large, and obtained cupric oxide powder particle shape and size are difficult to effectively control and can to environment.
Summary of the invention
Order of the present invention is: provide a kind of method utilizing copper sand to produce cupric oxide powder.
Present method, completes through following processing step: sorting removal of impurities → pair roller grinds presses → feed into dish → oxidized still heated oxide → cooling → grinding → screening → packaging for raw material with the copper scale produced in process of factory production and copper granular wastes.
Sorting removal of impurities: the copper scale produced in process of factory production and copper granular wastes are carried out artificial clear inspection.
Pair roller grinds pressure: the waste material loading automatic feeder after examining clearly is fed into multistage twin rollers according to quantity, and after grinding pressure through three grades, output thickness is about the scale copper shape thing of 200um.
To feed dish: get a certain amount of scale copper shape thing and load in the mould of stainless steel, high temperature steel or ceramic structure, add a certain amount of H2O2 or atmosphere furnace oxygen carries out oxide treatment.
Oxidized still heated oxide: oxidized still heating temperatures is carried out oxide treatment to 500-700 DEG C, soaking time is 2-4 hour.
Cooling: the material of oxidized still heated oxide is naturally cooled to less than 60 DEG C.
Broken: to take out the material crushing grinding on shredder naturally cooling to less than 60 DEG C.
Screening: the material sieve apparatus after grinding is sieved, obtains particle from 100 order-500 object finished product powder.
Packaging: weigh, finished product packing is put in storage.
The present invention directly utilizes the copper scale and copper granular wastes that produce in process of factory production, forms short texture and breakable cupric oxide through high temperature direct oxidation, obtains the cupric oxide powder of required particle diameter through grinding screening.This production cupric oxide technique is simple, easy to operate, device simple, and production process is pollution-free, and obtained cupric oxide purity depends on original copper powder purity, product cut size and structure-controllable, and production efficiency is high, and production cost is low, is applicable to suitability for industrialized production.
Embodiment:
Present method, completes through following processing step: sorting removal of impurities → pair roller grinds presses → feed into dish → oxidized still heated oxide → cooling → grinding → screening → packaging for raw material with the copper scale produced in process of factory production and copper granular wastes.
Embodiment 1:
Sorting removal of impurities: the copper scale produced in process of factory production and copper granular wastes are carried out artificial clear inspection.Pair roller grinds pressure: the waste material loading automatic feeder after examining clearly is fed into 50 tons of multistage twin rollers according to quantity, and after grinding pressure through three grades, output thickness is about the scale copper shape thing of 200um.To feed dish: get a certain amount of scale copper shape thing and load in the mould of stainless steel, high temperature steel or ceramic structure, add a certain amount of H2O2 oxygen and carry out oxide treatment.Oxidized still heated oxide: oxidized still heating temperatures to 500 DEG C is carried out oxide treatment, soaking time is 4 hours.Cooling: the material of oxidized still heated oxide is naturally cooled to less than 60 DEG C.Broken: to take out the material crushing grinding on shredder naturally cooling to less than 60 DEG C.Screening: the material after grinding is sieved with 100 mesh sieve extension sets, obtains finished product powder.Screen overflow and macrobead powder again can grind rear rescreening and obtain available small particle powder.Packaging: weigh, finished product packing is put in storage.
Embodiment 2:
Sorting removal of impurities: the copper scale produced in process of factory production and copper granular wastes are carried out artificial clear inspection.Pair roller grinds pressure: the waste material loading automatic feeder after examining clearly is fed into 50 tons of multistage twin rollers according to quantity, and after grinding pressure through three grades, output thickness is about the scale copper shape thing of 200um.To feed dish: get a certain amount of scale copper shape thing and load in the mould of stainless steel, high temperature steel or ceramic structure, add atmosphere furnace oxygen and carry out oxide treatment.Oxidized still heated oxide: oxidized still heating temperatures to 700 DEG C is carried out oxide treatment, soaking time is 2 hours.Cooling: the material of oxidized still heated oxide is naturally cooled to less than 60 DEG C.Broken: to take out the material crushing grinding on shredder naturally cooling to less than 60 DEG C.Screening: the material after grinding is sieved with 500 mesh sieve extension sets, obtains finished product powder.Screen overflow and macrobead powder again can grind rear rescreening and obtain available small particle powder.Packaging: weigh, finished product packing is put in storage.
Claims (9)
1. the method utilizing copper sand to produce cupric oxide powder, it is characterized in that: with the copper scale produced in process of factory production and copper granular wastes for raw material, complete through following processing step: sorting removal of impurities → pair roller grinds presses → feed into dish → oxidized still heated oxide → cooling → grinding → screening → packaging.
2. a kind of copper sand that utilizes produces the method for cupric oxide powder as claimed in claim 1, it is characterized in that: sorting removal of impurities: the copper scale produced in process of factory production and copper granular wastes are carried out artificial clear inspection.
3. a kind of copper sand that utilizes produces the method for cupric oxide powder as claimed in claim 1, it is characterized in that: pair roller grinds pressure: the waste material loading automatic feeder after examining clearly is fed into multistage twin rollers according to quantity, and after grinding pressure through three grades, output thickness is about the scale copper shape thing of 200um.
4. a kind of copper sand that utilizes produces the method for cupric oxide powder as claimed in claim 1, it is characterized in that: dish of feeding: get a certain amount of scale copper shape thing and load in the mould of stainless steel, high temperature steel or ceramic structure, add a certain amount of H2O2 or atmosphere furnace oxygen carries out oxide treatment.
5. a kind of copper sand that utilizes produces the method for cupric oxide powder as claimed in claim 1, and it is characterized in that: oxidized still heated oxide: oxidized still heating temperatures is carried out oxide treatment to 500-700 DEG C, soaking time is 2-4 hour.
6. a kind of copper sand that utilizes produces the method for cupric oxide powder as claimed in claim 1, it is characterized in that: cooling: the material of oxidized still heated oxide is naturally cooled to less than 60 DEG C.
7. a kind of copper sand that utilizes produces the method for cupric oxide powder as claimed in claim 1, it is characterized in that: broken: take out the material crushing grinding on shredder naturally cooling to less than 60 DEG C.
8. a kind of copper sand that utilizes produces the method for cupric oxide powder as claimed in claim 1, it is characterized in that: screening: sieved by the material sieve apparatus after grinding, obtain particle from 100 order-500 object finished product powder.
9. a kind of copper sand that utilizes produces the method for cupric oxide powder as claimed in claim 1, it is characterized in that: packaging: weigh, put in storage by finished product packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063011.9A CN104591258A (en) | 2015-02-08 | 2015-02-08 | Method for producing oxide copper powder from copper sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063011.9A CN104591258A (en) | 2015-02-08 | 2015-02-08 | Method for producing oxide copper powder from copper sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104591258A true CN104591258A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510063011.9A Pending CN104591258A (en) | 2015-02-08 | 2015-02-08 | Method for producing oxide copper powder from copper sand |
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| Country | Link |
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| CN (1) | CN104591258A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112691770A (en) * | 2021-01-12 | 2021-04-23 | 江苏智微新材料科技有限公司 | Preparation process of copper oxide powder material special for semiconductor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU639815A1 (en) * | 1977-07-25 | 1978-12-30 | Предприятие П/Я Р-6956 | Method of obtaining copper oxide |
| CN102275974A (en) * | 2011-05-13 | 2011-12-14 | 刘彬彬 | Preparation method of ultra-micrometer copper oxide powdery material |
| CN102320646A (en) * | 2011-09-09 | 2012-01-18 | 樊余杰 | Method for preparing copper oxide and cuprous oxide with waste copper foil |
| CN103553114A (en) * | 2013-11-15 | 2014-02-05 | 湖南大学 | Preparation method of high-purity copper oxide powder material |
| CN103964488A (en) * | 2013-01-30 | 2014-08-06 | 江苏格业新材料科技有限公司 | Method for preparing micro or nano copper oxide powder |
-
2015
- 2015-02-08 CN CN201510063011.9A patent/CN104591258A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU639815A1 (en) * | 1977-07-25 | 1978-12-30 | Предприятие П/Я Р-6956 | Method of obtaining copper oxide |
| CN102275974A (en) * | 2011-05-13 | 2011-12-14 | 刘彬彬 | Preparation method of ultra-micrometer copper oxide powdery material |
| CN102320646A (en) * | 2011-09-09 | 2012-01-18 | 樊余杰 | Method for preparing copper oxide and cuprous oxide with waste copper foil |
| CN103964488A (en) * | 2013-01-30 | 2014-08-06 | 江苏格业新材料科技有限公司 | Method for preparing micro or nano copper oxide powder |
| CN103553114A (en) * | 2013-11-15 | 2014-02-05 | 湖南大学 | Preparation method of high-purity copper oxide powder material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112691770A (en) * | 2021-01-12 | 2021-04-23 | 江苏智微新材料科技有限公司 | Preparation process of copper oxide powder material special for semiconductor |
| CN112691770B (en) * | 2021-01-12 | 2022-04-01 | 江苏智微新材料科技有限公司 | Preparation process of copper oxide powder material special for semiconductor |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150506 |
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