CN106399698A - Method for recovering copper and aluminum from copper clad aluminum bar processing waste - Google Patents
Method for recovering copper and aluminum from copper clad aluminum bar processing waste Download PDFInfo
- Publication number
- CN106399698A CN106399698A CN201610975305.3A CN201610975305A CN106399698A CN 106399698 A CN106399698 A CN 106399698A CN 201610975305 A CN201610975305 A CN 201610975305A CN 106399698 A CN106399698 A CN 106399698A
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- copper
- processing waste
- clad aluminum
- copper clad
- waste material
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/008—Wet processes by an alkaline or ammoniacal leaching
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0078—Leaching or slurrying with ammoniacal solutions, e.g. ammonium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0015—Obtaining aluminium by wet processes
- C22B21/0023—Obtaining aluminium by wet processes from waste materials
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrolytic Production Of Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a method for recovering copper and aluminum from copper clad aluminum bar processing waste, and belongs to the technical field of hydrometallurgy. The method comprises the steps that the copper clad aluminum bar processing waste is placed into an ammonium sulfate solution which is mixed with cupric ions and ammonia water beforehand, air is blown into the solution by an air pump to carry out oxidizing leaching, copper in the copper clad aluminum bar processing waste enters the solution, copper is extracted from leachate with a solvent extraction method to obtain strip liquor with copper, cathode copper products are obtained by using insoluble anode electro-deposited copper strip liquor, the raffinate obtained after copper extraction is fed back to continuously carry out leaching on the copper clad aluminum bar processing waste, and the aluminum which is not leached out from the copper clad aluminum bar processing waste can go back into the copper clad aluminum bars to be used again after processing. The method for recovering copper and aluminum from copper clad aluminum bar processing waste has the advantages of being short in process, small in number of working procedures, low in energy consumption and cost, and the like, and meets the requirements on cleaner production for environment protection.
Description
Technical field
The present invention relates to technical field of wet metallurgy, particularly relate to a kind of recovery copper, aluminum from copper clad aluminum wire processing waste material
Method.
Background technology
Copper clad aluminum wire composite (CCA) with fine aluminium as core body, external sheath fine copper, so that two kinds of metals is formed at interface former
It is combined between son as a bulk metal wire rod, the advantage taking into account copper and aluminum simultaneously, there is low-density, low cost and easy soldering
The features such as." Kelvin effect " when transmitting alternating current for the conductor makes copper-coated aluminium composite material in high frequency signal transmission and electric greatly
Flow having a extensive future of conveying aspect.But in copper clad aluminum wire production process, because the ratio of briquetting of product is relatively low, produce a large amount of
Inferior waste material (copper cover aluminum scrap body material and line conductor row), cause the significant waste of resource and the increase of production cost, therefore from copper
Valuable metal copper is reclaimed, aluminum has great importance in clad aluminum busbar processing waste material.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of processing waste material from copper clad aluminum wire to reclaim copper, the method for aluminum,
Realize extracting directly from waste material and obtain metallic aluminium and copper.
The process object of the method is copper clad aluminum wire processing waste material, specifically includes step as follows：
(1) with air as oxidant, the ammonium sulfate of copper ions and ammonia leaches copper clad aluminum wire processing for leaching agent
Waste material, obtains the leachate of metal aluminum blocks and cupric by solid-liquor separation after the completion of leaching；
(2) with LIX984N as extractant, the leachate that obtains of the organic extractant phase step (1) as diluent for the kerosene, obtain
The load organic phases of cupric and raffinate；
(3) load organic phases that step (2) is obtained wash, back extraction, obtain strip liquor and the organic faciess of cupric；
(4) the cupric strip liquor electrodeposition obtaining step (3), obtains negative electrode copper products；
(5) after the electrodeposition obtaining step (4), liquid return to step (3) back extraction load organic phases use；
(6) aluminium block that step (1) obtains is returned copper clad aluminum wire processing to reuse；
(7) the raffinate return to step (1) that step (2) obtains is used；
(8) the organic faciess return to step (2) that step (3) obtains is used.
Wherein, the copper clad aluminum wire processing waste material processing in step (1) is the copper-clad producing in the copper clad aluminum wire course of processing
Aluminum scrap body material and line conductor row, extraction temperature be 10～50 DEG C, extraction time be 1～24h, solution ammonium sulfate concentrations be 50～
300g/L, copper ion concentration are 0.5～10g/L, ammonia concn 5～100g/L, and air intake is that (minL is molten for 0.1～5L/
Liquid).
In step (2), extraction compares O/A=1～5:1, the volumetric concentration of organic faciess LIX984N is 10～30%, extraction
2～3 grades of series, incorporation time is 1～3min.
In step (3), washing compares O/A=10～20:1, wash 1～2 grade of series, O/A=1～5 are compared in back extraction:1,
2～3 grades of back extraction series, sulfuric acid concentration 100～200g/L.
In step (4), the electric current density of copper electrodeposition is 100～500A/m2, 10～50 DEG C of temperature, anode is insoluble anode
Pb-Ca-Sn alloy or Pb-Ag alloy, negative electrode is permanent cathode.
The having the beneficial effect that of the technique scheme of the present invention：
Ammonium sulfate leaching agent can be recycled, the main consumed cabin air of leaching process, a small amount of ammonia, liquid and extraction after copper electrodeposition
Agent all can be recycled, and reagent consumption is few, produces waste liquid few.Metallic aluminium and metallic copper can be directly obtained.Using hydrometallurgy
Method, energy consumption is low, meets the environmental requirement of clean manufacturing.
Brief description
Fig. 1 is recovery copper, the method process chart of aluminum from copper clad aluminum wire processing waste material of the present invention.
Specific embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of hydrometallurgic recovery copper, the method for aluminum processing waste material from copper clad aluminum wire.As shown in figure 1, for being somebody's turn to do
The process chart of method.The method specifically includes the steps such as leaching, extraction, washing, back extraction, electrodeposition, with reference to concrete reality
Apply example to be explained.
Embodiment 1
Leach：52g copper scrap alclad blank, leaching agent is 200g/L ammonium sulfate, and volume is 3L, solution copper ion concentration
For 3g/L, ammonia density is 60g/L, and air intake is 1.0L/ (minL solution), 30 DEG C of extraction temperature, extraction time 3h, and copper soaks
Go out rate and reach 99.8%.
Extraction：Extract compares O/A=3:1, the volumetric concentration of organic faciess LIX984N is 20%, extracts 3 grades of series, mixes
The conjunction time is 3min, and extraction of copper reaches 99.5%.
Washing, back extraction：That washs compares O/A=15:1, wash 2 grades of series, O/A=3 is compared in back extraction:1, back extraction series 3
Level, sulfuric acid concentration 150g/L, copper back extraction ratio reaches 99.6%.
Electrodeposition：With Pb-Ca-Sn alloy as insoluble anode, using permanent cathode, it is 250A/m in electric current density2, temperature 25
Electrodeposition under the conditions of DEG C, current efficiency reaches 93.5%.
Embodiment 2
Leach：58g copper scrap alclad blank, leaching agent is 250g/L ammonium sulfate, and volume is 3L, solution copper ion concentration
For 5g/L, ammonia density is 30g/L, and air intake is 2.0L/ (minL solution), 20 DEG C of extraction temperature, extraction time 6h, and copper soaks
Go out rate and reach 99.2%.
Extraction：Extract compares O/A=2:1, the volumetric concentration of organic faciess LIX984N is 30%, extracts 2 grades of series, mixes
The conjunction time is 2min, and extraction of copper reaches 99.6%.
Washing, back extraction：That washs compares O/A=20:1, wash 2 grades of series, O/A=4 is compared in back extraction:1, back extraction series 3
Level, sulfuric acid concentration 170g/L, copper back extraction ratio reaches 99.7%.
Electrodeposition：With Pb-Ag alloy as insoluble anode, using permanent cathode, it is 200A/m in electric current density2, 30 DEG C of temperature
Under the conditions of electrodeposition, current efficiency reaches 94.1%.
Embodiment 3
Leach：46g copper scrap clad aluminum busbar, leaching agent is 200g/L ammonium sulfate, and volume is 2L, and solution copper ion concentration is
3g/L, ammonia density is 40g/L, and air intake is 1.0L/ (minL solution), 20 DEG C of extraction temperature, extraction time 10h, and copper soaks
Go out rate and reach 99.1%.
Extraction：Extract compares O/A=4:1, the volumetric concentration of organic faciess LIX984N is 30%, extracts 2 grades of series, mixes
The conjunction time is 3min, and extraction of copper reaches 99.7%.
Washing, back extraction：That washs compares O/A=10:1, wash 1 grade of series, O/A=2 is compared in back extraction:1, back extraction series 3
Level, sulfuric acid concentration 170g/L, copper back extraction ratio reaches 99.4%.
Electrodeposition：With Pb-Ag alloy as insoluble anode, using permanent cathode, it is 300A/m in electric current density2, 25 DEG C of temperature
Under the conditions of electrodeposition, current efficiency reaches 93.2%.
The above is the preferred embodiment of the present invention it is noted that for those skilled in the art
For, on the premise of without departing from principle of the present invention, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of processing waste material from copper clad aluminum wire reclaim copper, aluminum method it is characterised in that：Comprise the following steps：
(1) with air as oxidant, the ammonium sulfate of copper ions and ammonia leaches copper clad aluminum wire processing waste material for leaching agent,
Obtain the leachate of aluminium block and cupric by solid-liquor separation after the completion of leaching；
(2) with LIX984N as extractant, the leachate that obtains of the organic extractant phase step (1) as diluent for the kerosene, obtain cupric
Load organic phases and raffinate；
(3) load organic phases that step (2) is obtained wash, back extraction, obtain strip liquor and the organic faciess of cupric；
(4) the cupric strip liquor electrodeposition obtaining step (3), obtains negative electrode copper products；
(5) after the electrodeposition obtaining step (4), liquid return to step (3) back extraction load organic phases use；
(6) aluminium block that step (1) obtains is returned copper clad aluminum wire processing to reuse；
(7) the raffinate return to step (1) that step (2) obtains is used；
(8) the organic faciess return to step (2) that step (3) obtains is used.
2. the processing waste material from copper clad aluminum wire according to claim 1 reclaim copper, aluminum method it is characterised in that：Described
The copper clad aluminum wire processing waste material processing in step (1) is the copper cover aluminum scrap body material and wire producing in the copper clad aluminum wire course of processing
Row.
3. the processing waste material from copper clad aluminum wire according to claim 1 reclaim copper, aluminum method it is characterised in that：Described
In step (1) extraction temperature be 10～50 DEG C, extraction time be 1～24h, solution ammonium sulfate concentrations be 50～300g/L, copper from
Sub- concentration is 0.5～10g/L, ammonia concn 5～100g/L, and air intake is 0.1～5L/ (minL solution).
4. the processing waste material from copper clad aluminum wire according to claim 1 reclaim copper, aluminum method it is characterised in that：Described
In step (2), extraction compares O/A=1～5:1, the volumetric concentration of organic faciess LIX984N is 10～30%, extracts series 2～3
Level, incorporation time is 1～3min.
5. the processing waste material from copper clad aluminum wire according to claim 1 reclaim copper, aluminum method it is characterised in that：Described
In step (3), washing compares O/A=10～20:1, wash 1～2 grade of series, O/A=1～5 are compared in back extraction:1, back extraction series 2
～3 grades, sulfuric acid concentration 100～200g/L.
6. the processing waste material from copper clad aluminum wire according to claim 1 reclaim copper, aluminum method it is characterised in that：Described
In step (4), the electric current density of copper electrodeposition is 100～500A/m2, 10～50 DEG C of temperature, anode closes for insoluble anode Pb-Ca-Sn
Gold or Pb-Ag alloy, negative electrode is permanent cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975305.3A CN106399698A (en) | 2016-10-27 | 2016-10-27 | Method for recovering copper and aluminum from copper clad aluminum bar processing waste |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975305.3A CN106399698A (en) | 2016-10-27 | 2016-10-27 | Method for recovering copper and aluminum from copper clad aluminum bar processing waste |
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| Publication Number | Publication Date |
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| CN106399698A true CN106399698A (en) | 2017-02-15 |
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| CN201610975305.3A Pending CN106399698A (en) | 2016-10-27 | 2016-10-27 | Method for recovering copper and aluminum from copper clad aluminum bar processing waste |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570560A (en) * | 2018-06-11 | 2018-09-25 | 李天麟 | A method of recycling copper from copper-bearing waste material |
| CN111575487A (en) * | 2020-05-28 | 2020-08-25 | 哈尔滨工业大学（深圳） | Method for recovering products of hydrogen production by hydrolysis of aluminum-based materials |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2043430A1 (en) * | 1990-05-30 | 1991-12-01 | William H. Kruesi | Process and removal of zinc and nickel from copper ammine sulfate solutions |
| CN1076494A (en) * | 1992-03-13 | 1993-09-22 | 北京矿冶研究总院 | Hydrometallurgical method for recovering copper from copper oxide ore |
| CN1113520A (en) * | 1994-06-13 | 1995-12-20 | 北京矿冶研究总院 | Hydrometallurgical process for the recovery of copper and zinc from copper and zinc materials |
| CN1172074A (en) * | 1997-08-15 | 1998-02-04 | 张礼英 | Preparation method of cupric oxide or cupric sulfate using copper sheathed steel by ammonia immersion |
| CN101519727A (en) * | 2009-04-16 | 2009-09-02 | 北京矿冶研究总院 | Method for treating zinc smelting by-products |
| CN102041392A (en) * | 2010-12-31 | 2011-05-04 | 上海大学 | Method for recycling copper from copper-steel back bimetal waste through wet process |
| CN103388160A (en) * | 2013-07-19 | 2013-11-13 | 北京科技大学 | Method for preparation of ultrafine copper powder by waste circuit board copper dissolution-electrodeposition combined method |
| CN103667713A (en) * | 2013-12-12 | 2014-03-26 | 江西理工大学 | Method for recycling copper from coppered steel wires |
-
2016
- 2016-10-27 CN CN201610975305.3A patent/CN106399698A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2043430A1 (en) * | 1990-05-30 | 1991-12-01 | William H. Kruesi | Process and removal of zinc and nickel from copper ammine sulfate solutions |
| CN1076494A (en) * | 1992-03-13 | 1993-09-22 | 北京矿冶研究总院 | Hydrometallurgical method for recovering copper from copper oxide ore |
| CN1113520A (en) * | 1994-06-13 | 1995-12-20 | 北京矿冶研究总院 | Hydrometallurgical process for the recovery of copper and zinc from copper and zinc materials |
| CN1172074A (en) * | 1997-08-15 | 1998-02-04 | 张礼英 | Preparation method of cupric oxide or cupric sulfate using copper sheathed steel by ammonia immersion |
| CN101519727A (en) * | 2009-04-16 | 2009-09-02 | 北京矿冶研究总院 | Method for treating zinc smelting by-products |
| CN102041392A (en) * | 2010-12-31 | 2011-05-04 | 上海大学 | Method for recycling copper from copper-steel back bimetal waste through wet process |
| CN103388160A (en) * | 2013-07-19 | 2013-11-13 | 北京科技大学 | Method for preparation of ultrafine copper powder by waste circuit board copper dissolution-electrodeposition combined method |
| CN103667713A (en) * | 2013-12-12 | 2014-03-26 | 江西理工大学 | Method for recycling copper from coppered steel wires |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570560A (en) * | 2018-06-11 | 2018-09-25 | 李天麟 | A method of recycling copper from copper-bearing waste material |
| CN111575487A (en) * | 2020-05-28 | 2020-08-25 | 哈尔滨工业大学（深圳） | Method for recovering products of hydrogen production by hydrolysis of aluminum-based materials |
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Application publication date: 20170215 |
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