CN106601386B - A kind of recovery method of useless tin-coated copper rice - Google Patents
A kind of recovery method of useless tin-coated copper rice Download PDFInfo
- Publication number
- CN106601386B CN106601386B CN201710003623.8A CN201710003623A CN106601386B CN 106601386 B CN106601386 B CN 106601386B CN 201710003623 A CN201710003623 A CN 201710003623A CN 106601386 B CN106601386 B CN 106601386B
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- China
- Prior art keywords
- tin
- copper rice
- copper
- vacuum tank
- rice
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 88
- 239000010949 copper Substances 0.000 title claims abstract description 88
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 59
- 235000009566 rice Nutrition 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 58
- 239000010913 used oil Substances 0.000 claims abstract description 27
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 17
- 239000000945 filler Substances 0.000 claims abstract description 13
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000000654 additive Substances 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000000967 suction filtration Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000007670 refining Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 239000004020 conductor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- WAKHLWOJMHVUJC-FYWRMAATSA-N (2e)-2-hydroxyimino-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(=N/O)\C(O)C1=CC=CC=C1 WAKHLWOJMHVUJC-FYWRMAATSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B15/00—Apparatus or processes for salvaging material from cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention provides a kind of recovery method of useless tin-coated copper rice, useless tin-coated copper rice is placed in vacuum tank first, add appropriate used oil, by external heating device to vacuum tank computer heating control temperature at 250 300 DEG C, 20 30min are stirred to the tin-coated copper rice in vacuum tank by agitating device, the tin on copper rice surface is peeled off by agitating friction effect, the copper powder and the molten tin on copper rice surface that a small amount of agitating friction obtains enter in used oil；Used oil is released, after cooling vacuum container to room temperature, the copper rice after detin is taken out from vacuum tank, that is, detin copper rice is obtained, directly as copper refining raw material；Used oil is subjected to suction filtration processing, obtains the additive that copper-containing tin is used for wastewater treatment iron-carbon micro-electrolysis filler.Method and apparatus that the present invention uses are simple, pollution-free, cost is low, efficiency high.
Description
Technical field：
The invention belongs to secondary resource recycling field, and in particular to a kind of recovery method of useless tin-coated copper rice.
Technical background：
With the rapid development of power communication cause, society increasingly increases the demand of electric wire, and the thing followed is given up
Electric wire is also growing day by day, increasingly deficient plus metals resources, and World Copper, tin price can be in any more, and waste electric wire cable returns
Receive all significant to economic and society.Because traditional conductor copper cash has partial oxidation in high temperature extrusion, and easily
Easily occurs loose contact when wire connects, therefore, existing copper conductor is generally good to make it have in electroplating surfaces with tin
Corrosion resistance and welding performance.
It is low due to being difficult wire stripping or wire stripping efficiency for most of useless tinned wirds, the processing of generally use crushing technology.Powder
Broken technology is that waste electric wire cable is directly broken into graininess by plant equipment such as cutting machine and pulverizers, then is set by sorting
It is standby to separate plastics and metal.As can be seen that the recovery technology of existing waste electric wire cable focuses on separation copper and plastics,
It is and helpless to the separation and recovery of the tin coating on copper conductor.Thus largely useless tin-coated copper rice is produced, i.e., caused by cut-out
Sectional copper cash, the tin coating on surface still without departing from.From the prior art, it is main from the point of view of the recovery method of tin-coated copper rice
There are two kinds of the acid-hatching of young eggs and electrolysis, such as Chinese invention patent 200910090636.9 proposes copper sulphate-dump leaching process recovery
Copper and tin in waste and old tinned wird, Chinese invention patent 201010279564.5 are electrolysed again after being handled using special leaching equipment
Etc. technique, these methods reclaim tin from copper rice and the problems such as cost recovery is high, technological process is long be present.
Therefore, it is necessary to research and develop a kind of more efficient, low cost and economic friendly method, solves the separation of tin plating waste cupron
Recovery problem.
The content of the invention：
It is useless that the technical problems to be solved by the invention are to provide that a kind of method is simple, pollution-free, cost is low, the rate of recovery is high
The recovery method of tin-coated copper rice.
A kind of recovery method of useless tin-coated copper rice of the present invention, is realized by following steps：
1) useless tin-coated copper rice is placed in vacuum tank, appropriate used oil is added, by external heating device to vacuum
Container computer heating control temperature stirs 20-30min at 250-300 DEG C, by agitating device to the tin-coated copper rice in vacuum tank, leads to
Cross agitating friction effect to peel off the tin on copper rice surface, the copper powder and the molten tin on copper rice surface that a small amount of agitating friction obtains enter
In used oil；
2) valve of vacuum tank bottom is opened, used oil is released, collection is treated to handle in next step；Cooling vacuum container is extremely
After room temperature, the copper rice after detin is taken out from vacuum tank, that is, detin copper rice is obtained, directly as copper refining raw material；
3) used oil is subjected to suction filtration processing, obtains copper-containing tin；
4) copper-containing tin is used for the additive of wastewater treatment iron-carbon micro-electrolysis filler.
In the step 1), the amount ratio of useless tin-coated copper rice and used oil is 1kg:(100-300)mL；
In the step 1), the system pressure of vacuum tank is not higher than 25kpa；
In the step 1), the rotating speed of agitating device stirring is 300-600rpm.
A kind of device of the recovery method of useless tin-coated copper rice of the present invention, including motor, rotary shaft, vacuum tank, the institute
Rotary shaft one end is stated provided with agitating paddle and is extended in the cavity of vacuum tank, the other end is connected with electric machine main shaft；Described true
Rotary shaft between empty container and motor is provided with the movable sealing sleeve of suit on the rotary shaft, and the top of the vacuum tank is set
Gas outlet, the bottom of the vacuum tank are provided with outlet at bottom, and the outlet at bottom is provided with valve.
Using a kind of recovery method of useless tin-coated copper rice of above-mentioned technical proposal, its operation principle is summarized as follows：
Pending useless tin-coated copper rice is fitted into vacuum tank by the present invention, appropriate used oil is added, to vacuum tank
Heating, when temperature reaches more than the fusing point (232 DEG C) of tin, tin is in molten condition, under vacuum by stirring outer masterpiece
With the tin coating on copper rice surface enters in used oil, by realizing the separation with copper rice after outlet at bottom releasing used oil.
It has been found that containing substantial amounts of copper powder in the glass putty that used oil obtains after suction filtration is handled, these copper powders are to stir
Scrape what is obtained during mixing, the glass putty obtained here is the mixed-powder of copper and tin.
Applicant further found that copper-containing tin is the quality raw materials for iron-carbon micro-electrolysis filler.Because current iron
Carbon micro-electrolysis filler also exist service efficiency it is not high, remove COD it is indifferent, phenomena such as hardened easily occurs；Copper-containing tin is made
For the iron-carbon micro-electrolysis filler of catalyst preparation, multiple catalyzing system is formed, increases potential difference, Gibbs free energy negative value is entered
One step is improved, and potential difference increase, oxidation efficiency improves, and faster, copper-containing tin is used for iron-carbon micro-electrolysis to reaction speed by the present invention
Filler, light electrolysis efficiency is improved, obtained unexpected technique effect.
The beneficial effects of the invention are as follows：
1st, under vacuum conditions by being sirred and separated, the tin coating on copper rice surface can remove to greatest extent, after tin separation
Into in used oil, separation process is simple relative to the acid leaching process or electrolysis process of prior art, and cost is low；
2nd, the method and apparatus that use of the present invention are simple, pollution-free, cost is low, efficiency high, ingenious to make use of tin fusing point temperature
Degree is segregated into the principle of used oil above by stirring external force, realizes efficiently separating for tin coating and copper scrap rice；
3rd, the stanniferous copper powder after separating is directly used in the preparation of micro-electrolysis stuffing, without next step separation is carried out again, handles
Process is simple, and added value is high；
4th, this technical process creatively proposes the recycling recovery process of tin-coated copper rice, can give full play to process advantage
And feedstock availability, the treatment of wastes with processes of wastes against one another, obtain unexpected technique effect.
Brief description of the drawings：
Fig. 1 is a kind of process chart of the recovery method of useless tin-coated copper rice；
Fig. 2 is a kind of schematic device of the recovery method of useless tin-coated copper rice；
In Fig. 2,1 it is motor, 2 is vacuum tank top cover, 3 is vacuum tank, 4 is outlet at bottom, 5 is valve, 6 is stirring
Oar, 7 be rotary shaft, 8 be gas outlet, 9 be movable sealing sleeve.
Embodiment：
Embodiment 1
1) the 2kg tin-coated copper rice that gives up is placed in vacuum tank, adds 200mL used oil, pressed inside control vacuum tank
Power is 25kpa, and by external heating device to vacuum tank computer heating control temperature at 250 DEG C, vacuum is held by agitating device
Tin-coated copper rice stirring 20min, invariablenes turning speed 300rpm in device, the tin on copper rice surface is peeled off by agitating friction effect,
The copper powder and the molten tin on copper rice surface that a small amount of agitating friction obtains enter in used oil；
2) valve of vacuum tank bottom is opened, used oil is released, collection is treated to handle in next step；Cooling vacuum container is extremely
After room temperature, the copper rice after detin is taken out from vacuum tank, that is, detin copper rice is obtained, directly as copper refining raw material；
3) used oil is subjected to suction filtration processing, obtains copper-containing tin；
4) copper-containing tin is used for the additive of wastewater treatment iron-carbon micro-electrolysis filler.
Technique effect：The tin coating on useless tin-coated copper rice surface is basically separated totally, copper rice surface by before processing silvery white
It is changed into brassy；Additive of the copper-containing tin as wastewater treatment iron-carbon micro-electrolysis filler, improves iron-carbon micro-electrolysis filler
COD clearances and colourity removal efficiency.
Embodiment 2
1) the 2kg tin-coated copper rice that gives up is placed in vacuum tank, adds 600mL used oil, pressed inside control vacuum tank
Power is 25kpa, and by external heating device to vacuum tank computer heating control temperature at 300 DEG C, vacuum is held by agitating device
Tin-coated copper rice stirring 30min, invariablenes turning speed 600rpm in device, the tin on copper rice surface is peeled off by agitating friction effect,
The copper powder and the molten tin on copper rice surface that a small amount of agitating friction obtains enter in used oil；
2) valve of vacuum tank bottom is opened, used oil is released, collection is treated to handle in next step；Cooling vacuum container is extremely
After room temperature, the copper rice after detin is taken out from vacuum tank, that is, detin copper rice is obtained, directly as copper refining raw material；
3) used oil is subjected to suction filtration processing, obtains copper-containing tin；
4) copper-containing tin is used for the additive of wastewater treatment iron-carbon micro-electrolysis filler.
Technique effect：The tin coating on useless tin-coated copper rice surface is basically separated totally, copper rice surface by before processing silvery white
It is changed into brassy；Additive of the copper-containing tin as wastewater treatment iron-carbon micro-electrolysis filler, improves iron-carbon micro-electrolysis filler
COD clearances and colourity removal efficiency.
Claims (4)
- A kind of 1. recovery method of useless tin-coated copper rice, it is characterised in that：Comprise the following steps：1) useless tin-coated copper rice is placed in vacuum tank, appropriate used oil is added, by external heating device to vacuum tank Computer heating control temperature stirs 20-30min at 250-300 DEG C, by agitating device to the tin-coated copper rice in vacuum tank, by stirring Mix rubbing action to peel off the tin on copper rice surface, the copper powder and the molten tin on copper rice surface that a small amount of agitating friction obtains enter useless machine In oil；2) valve of vacuum tank bottom is opened, used oil is released, collection is treated to handle in next step；Cooling vacuum container is to room temperature Afterwards, the copper rice after detin is taken out from vacuum tank, that is, detin copper rice is obtained, directly as copper refining raw material；3) used oil is subjected to suction filtration processing, obtains copper-containing tin；4) copper-containing tin is used for the additive of wastewater treatment iron-carbon micro-electrolysis filler.
- A kind of 2. recovery method of useless tin-coated copper rice according to claim 1, it is characterised in that：In the step 1), give up The amount ratio of tin-coated copper rice and used oil is 1kg:(100-300)mL.
- A kind of 3. recovery method of useless tin-coated copper rice according to claim 2, it is characterised in that：In the step 1), very The system pressure of empty container is not higher than 25kpa.
- A kind of 4. recovery method of useless tin-coated copper rice according to claim 3, it is characterised in that：In the step 1), stir The rotating speed for mixing device stirring is 300-600rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003623.8A CN106601386B (en) | 2017-01-04 | 2017-01-04 | A kind of recovery method of useless tin-coated copper rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003623.8A CN106601386B (en) | 2017-01-04 | 2017-01-04 | A kind of recovery method of useless tin-coated copper rice |
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| Publication Number | Publication Date |
|---|---|
| CN106601386A CN106601386A (en) | 2017-04-26 |
| CN106601386B true CN106601386B (en) | 2018-01-30 |
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| CN201710003623.8A Expired - Fee Related CN106601386B (en) | 2017-01-04 | 2017-01-04 | A kind of recovery method of useless tin-coated copper rice |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048663A (en) * | 2017-12-13 | 2018-05-18 | 长沙汇聚环境技术有限公司 | A kind of method of the Separation of Tin from useless tin-coated copper rice |
| CN108091454A (en) * | 2017-12-13 | 2018-05-29 | 长沙汇聚环境技术有限公司 | A kind of separation and recovery method of useless tinned wire |
| CN108048662A (en) * | 2017-12-13 | 2018-05-18 | 长沙汇聚环境技术有限公司 | A kind of method that copper and tin are separated from useless tin-coated copper rice |
| CN111735732A (en) * | 2020-07-03 | 2020-10-02 | 江苏亨通精工金属材料有限公司 | Method for testing copper content of plastic particles of dry copper rice mill |
| CN116062872A (en) * | 2021-10-30 | 2023-05-05 | 中国石油化工股份有限公司 | Composite micro-electrolysis iron-carbon slow-release material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002058081A1 (en) * | 2001-01-19 | 2002-07-25 | Yung Soo You | Device for recovering copper from waste electric lines |
| CN101625915A (en) * | 2009-08-06 | 2010-01-13 | 中南大学 | Method for recycling waste tin-plated electric wires |
| KR20140042976A (en) * | 2012-09-28 | 2014-04-08 | 주식회사 씨알테크 | Recycling method and apparatus for composite waste using solvent |
-
2017
- 2017-01-04 CN CN201710003623.8A patent/CN106601386B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002058081A1 (en) * | 2001-01-19 | 2002-07-25 | Yung Soo You | Device for recovering copper from waste electric lines |
| CN101625915A (en) * | 2009-08-06 | 2010-01-13 | 中南大学 | Method for recycling waste tin-plated electric wires |
| KR20140042976A (en) * | 2012-09-28 | 2014-04-08 | 주식회사 씨알테크 | Recycling method and apparatus for composite waste using solvent |
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Inventor after: Yang Zhonghui Inventor before: Yi Shi Inventor before: Zhang Bailin Inventor before: Zhou Yan |
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Effective date of registration: 20171228 Address after: 312500, Shizhu village, 133 Star Street, Xinchang County, Zhejiang, Shaoxing Applicant after: XINCHANG QINMIAN TRADE CO.,LTD. Address before: 410100 Hunan province Changsha Changsha City Economic and Technological Development Zone Bancang Road No. 29 new Changhai center service outsourcing base 3 A block 2 building 204 Applicant before: CHANGSHA HUIJU ENVIRONMENTAL TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20190529 Address after: 401520 Jinfeng Ring Road, Caojie Development Zone, Hechuan Industrial Park, Chongqing Patentee after: CHONGQING CHENGRUI PHOTOELECTRIC Co.,Ltd. Address before: 312500 No. 133, Shizhu Wan Village, Qixing street, Xinchang County, Shaoxing, Zhejiang Patentee before: XINCHANG QINMIAN TRADE CO.,LTD. |
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