CN114407237A - Waste composite copper film recovery processing method - Google Patents
Waste composite copper film recovery processing method Download PDFInfo
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- CN114407237A CN114407237A CN202210072744.9A CN202210072744A CN114407237A CN 114407237 A CN114407237 A CN 114407237A CN 202210072744 A CN202210072744 A CN 202210072744A CN 114407237 A CN114407237 A CN 114407237A
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- copper film
- composite copper
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- production line
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 239000010949 copper Substances 0.000 title claims abstract description 93
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 93
- 239000002131 composite material Substances 0.000 title claims abstract description 69
- 239000002699 waste material Substances 0.000 title claims abstract description 26
- 238000011084 recovery Methods 0.000 title claims description 6
- 238000003672 processing method Methods 0.000 title description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 30
- 229910000365 copper sulfate Inorganic materials 0.000 claims abstract description 27
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- 238000004064 recycling Methods 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000009713 electroplating Methods 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims description 30
- 229920003023 plastic Polymers 0.000 claims description 30
- 239000011159 matrix material Substances 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 7
- 239000005751 Copper oxide Substances 0.000 claims description 7
- 229910000431 copper oxide Inorganic materials 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000004090 dissolution Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000009298 carbon filtering Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 abstract description 9
- 229920006255 plastic film Polymers 0.000 abstract description 9
- 238000007747 plating Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 28
- 239000010410 layer Substances 0.000 description 14
- 230000008569 process Effects 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
- B29B17/0047—Compacting complete waste articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- 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
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
-
- 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
- C22B15/0084—Treating solutions
- C22B15/0086—Treating solutions by physical methods
-
- 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
- C22B7/001—Dry processes
-
- 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
- C22B7/007—Wet processes by acid leaching
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0293—Dissolving the materials in gases or liquids
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for recycling and treating a waste composite copper film. According to the invention, the copper layer attached to the surface of the base plastic film is dissolved by sulfuric acid, and a copper sulfate solution and the base plastic film are formed after solid-liquid separation, wherein the copper sulfate solution is an electroplating raw material and can be directly used for a plating solution of a water-electricity copper plating production line, and the base plastic film can be directly compressed to realize recycling, so that the utilization rate of the copper layer is improved, the base plastic film can be recycled, the production cost is reduced, and the recycling scheme has no discharge in principle, does not influence the environment, and is green and environment-friendly.
Description
Technical Field
The invention relates to the technical field of recovery treatment of electroplating waste composite copper films, in particular to a recovery treatment method of waste composite copper films.
Background
The lithium battery is a mainstream product of modern energy storage, is a key product for promoting the development of electric intelligent equipment such as an electric automobile and a smart phone, and has a very wide development prospect and space. With the development of the lithium battery industry, the product quality and safety management technology and specification are continuously improved, and the adoption of a composite copper film as a negative electrode material for the lithium battery becomes a mainstream technology in the industry. In the production process of the composite copper film, certain waste copper films and the like are generated in the production processes of vacuum copper plating films, water copper plating films and the like and due to defects and the like of the manufacturing process. The composite copper film for the negative electrode of the lithium battery consists of a matrix plastic film and a copper layer, belongs to a composite material, and cannot be directly used as copper or plastic of a single material for recycling treatment. In the prior art, the waste composite copper film is generally directly taken as solid industrial waste to be incinerated, and copper is recovered after incineration. This process is usually a paid process, which not only increases the production cost of the manufacturer and wastes the plastic substrate, but also has a large environmental impact and increases carbon emissions.
The above disadvantages need to be improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method for recovering and treating a waste composite copper film.
The technical scheme of the invention is as follows:
a process for reclaiming the waste composite copper film includes such steps as adding sulfuric acid to the oxidized composite copper film, dissolving the copper layer in said film, and solid-liquid separation to obtain copper sulfate solution and matrix plastics.
The method for recycling the waste composite copper film comprises the following implementation steps:
s1, placing the composite copper film in a heating furnace, and injecting sufficient oxygen into the heating furnace to oxidize a copper layer on the surface of the composite copper film to form copper oxide;
s2, adding sufficient sulfuric acid into the composite copper film to enable copper oxide on the surface of the composite copper film to fully react with the sulfuric acid to form a copper sulfate solution;
and S3, filtering the mixture of the composite copper film and the sulfuric acid, and separating the copper sulfate solution from the matrix plastic.
Further, before step S1, the composite copper film is added with pure water and then sufficiently stirred to make the humidity of the composite copper film uniform.
In the method for recycling and treating the waste composite copper film, the composite copper film is crushed into granular materials by using a film crusher before the composite copper film is treated.
In the method for recovering and treating the waste composite copper film, the separated copper sulfate solution is filtered by the activated carbon.
In the method for recycling the waste composite copper film, the separated matrix plastic is washed, dried and compressed into blocks.
The method for recycling the waste composite copper film comprises a recycling system, wherein the recycling system comprises an oxidation reaction furnace, a dissolving tank and a filtering separation production line, the oxidation reaction furnace is connected with an oxygen pipeline, sulfuric acid is arranged in the dissolving tank, the composite copper film passes through the oxidation reaction furnace and then is put into the dissolving tank to be dissolved, and suspension liquid in the dissolving tank respectively forms a copper sulfate solution and matrix plastic after passing through the filtering separation production line.
Furthermore, a crusher and a stirrer are arranged at the front end of the oxidation reaction furnace, the stirrer is connected with a water conveying pipeline, the composite copper film is put into the crusher to be crushed and then conveyed into the stirrer through the conveying pipeline, and the stirrer uniformly stirs the composite copper film and pure water and then outputs the mixture into the oxidation reaction furnace.
Furthermore, the one end of filtering separation production line is connected with active carbon filtration equipment, active carbon filtration equipment connects electroplating production line, via liquid material flow through behind the filtering separation production line get into behind the active carbon filtration equipment among the electroplating production line.
Furthermore, one end of the filtering and separating production line is connected with a cleaning and drying line, the cleaning and drying line is connected with a briquetting machine, and solid substances on the filtering and separating production line enter the briquetting machine to be compressed into blocks after passing through the cleaning and drying line.
The method has the advantages that the copper layer attached to the surface of the base plastic film is dissolved through sulfuric acid, and the copper sulfate solution and the base plastic film are formed after solid-liquid separation, wherein the copper sulfate solution is an electroplating raw material and can be directly used for a plating solution of a water-electricity copper plating production line, the base plastic film can be directly compressed to realize recycling, the utilization rate of the copper layer is improved, meanwhile, the base plastic film can be recycled, the production cost is reduced, and the recycling scheme has no discharge in principle, does not influence the environment, and is green and environment-friendly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of the steps of the present invention.
FIG. 2 is a flow chart of the material change of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A process for reclaiming the waste composite copper film includes such steps as adding sulfuric acid to the oxidized composite copper film, dissolving the copper layer in said film, and solid-liquid separation to obtain copper sulfate solution and matrix plastics. The method utilizes the characteristic that the components of matrix plastic are stable and do not react with strong acid, the surface copper layer of the composite copper film is oxidized and then reacts with sulfuric acid to form copper sulfate solution, so that the surface copper layer of the composite copper film is separated from the matrix plastic, the separation form is solid and liquid, the physical characteristics are obviously distinguished, the copper sulfate solution and the matrix plastic aggregate can be directly formed by filtering, the recyclable object is separated to form a single substance, the copper sulfate solution is usually also used for water electroplating, the solution can be recycled and reused after simple impurity removal, the matrix plastic can be directly recycled as the single substance, and a manufacturer can recycle the solution by himself or change the solution to the market. The scheme can fully recover the composite copper film, reduces the extra cost for treating wastes, reduces the production cost, and achieves the effects of environmental protection and sustainable development.
In one embodiment, a method for recycling waste composite copper films uses materials comprising waste or useless composite copper films and sulfuric acid, wherein the composite copper films are waste of negative electrode materials of lithium batteries and comprise surface copper layers and matrix plastics.
After a certain amount of composite copper film is collected, as shown in fig. 1 and 2, the specific implementation steps are as follows:
and T1, putting the composite copper film into a film crusher, and crushing the waste composite copper film into granules. The later step needs to react the surface copper layer with the sulfuric acid, so that the surface copper layer and the sulfuric acid are fully reacted, the composite copper film is crushed as far as possible to form small particle substances, and the reaction area with the sulfuric acid is increased.
And T2, putting the crushed composite copper film granules into a stirrer, adding a certain proportion of pure water, and fully and uniformly stirring to form the composite copper film wet granules. Set up the transmission line between film crusher and the mixer, the hydraulic pipeline is connected to the mixer, and when the mixer stirring in-process, the continuous inward injection quantitative pure water of hydraulic pipeline for compound copper film aggregate evenly adsorbs or adheres to the moisture of capacity at the stirring in-process, forms wet material.
And T3, conveying the stirred composite copper film wet granules into an oxidation reaction furnace through a transmission line for heating. And (3) reacting the surface copper layer in the composite copper film with oxygen by heating to form a surface copper oxide layer, and evaporating water in the wet granules of the composite copper film to change the wet granules of the composite copper film into dry materials again.
And T4, conveying the composite copper film (the copper oxide surface layer and the matrix plastic) into a dissolving tank, continuously injecting sufficient sulfuric acid into the dissolving tank, and continuously reacting the copper oxide on the surface of the composite copper film with the sulfuric acid to form a copper sulfate solution. Because the base plastic is chemically stable, the conditions in the oxidation furnace are not sufficient for oxidation aging with oxygen, and likewise, the plastic does not react with the sulfuric acid solution, so that only the surface copper layer is dissolved in the sulfuric acid to form the copper sulfate solution during the dissolution process.
And T5, separating the mixture in the dissolving tank, namely the suspension formed by the copper sulfate solution and the matrix plastic through solid-liquid separation equipment. The matrix plastic is granular and suspended in the copper sulfate solution, and cannot be separated by precipitation, and is usually a special disc with adsorption function, so that the solid matters in the flowing suspension can be adsorbed on the special disc, and the solid matters are transferred by the rotation and scraping of the special disc. The granular matrix plastic has small mass, so that the granular matrix plastic can be well adsorbed by a special disc, and is completely separated from the copper sulfate solution.
And T6, further treating the separated copper sulfate solution and the matrix plastic before recycling. The copper sulfate solution enters a filtering production line for filtering, so that impurities in the copper sulfate solution are thoroughly removed, and specifically, activated carbon filtering equipment can be used. And the matrix plastic enters a cleaning and drying line for cleaning, filtering and drying to form a plastic particle aggregate.
And T7, directly applying the copper sulfate solution after impurity removal to a water electroplating process to be directly used as a plating solution, and forming a block-shaped plastic particle integrated substance formed by matrix plastic through a briquetting machine, and recycling or directly selling the plastic particle integrated substance, and putting the plastic particle integrated substance into recycling and reproducing production.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A method for recovering and treating waste composite copper film is characterized in that sufficient sulfuric acid is added into the oxidized composite copper film, the sulfuric acid dissolves a copper layer on the surface of the composite copper film, and a copper sulfate solution and matrix plastic are formed through solid-liquid separation.
2. The method for recycling and treating the waste composite copper film according to claim 1, wherein the implementation steps comprise:
s1, placing the composite copper film in a heating furnace, and injecting sufficient oxygen into the heating furnace to oxidize a copper layer on the surface of the composite copper film to form copper oxide;
s2, adding sufficient sulfuric acid into the composite copper film to enable copper oxide on the surface of the composite copper film to fully react with the sulfuric acid to form a copper sulfate solution;
and S3, filtering the mixture of the composite copper film and the sulfuric acid, and separating the copper sulfate solution from the matrix plastic.
3. The method of claim 2, wherein before step S1, the composite copper film is added with pure water and then fully stirred to make the humidity of the composite copper film uniform.
4. The method for recycling and treating the waste composite copper film as claimed in claim 1, wherein the composite copper film is crushed into a granular material by a film crusher before the composite copper film is treated.
5. The method as claimed in claim 1, wherein the separated copper sulfate solution is filtered by activated carbon.
6. The method for recycling and treating the waste composite copper film according to claim 1, wherein the separated matrix plastic is washed, dried and then compressed into blocks.
7. The method as claimed in claim 1, wherein the method comprises a recovery processing system, the recovery processing system comprises an oxidation reaction furnace, a dissolution tank and a filtration separation production line, the oxidation reaction furnace is connected with an oxygen pipeline, sulfuric acid is arranged in the dissolution tank, the composite copper film passes through the oxidation reaction furnace and then is put into the dissolution tank to be dissolved, and suspension liquid in the dissolution tank passes through the filtration separation production line to respectively form copper sulfate solution and matrix plastic.
8. The method according to claim 7, wherein a crusher and a stirrer are provided at the front end of the oxidation reaction furnace, the stirrer is connected to a water pipe, the composite copper film is crushed by the crusher and then transported to the stirrer through the water pipe, and the stirrer uniformly stirs the composite copper film and pure water and then outputs the mixture to the oxidation reaction furnace.
9. The method as claimed in claim 7, wherein one end of the filtering and separating production line is connected with an activated carbon filtering device, the activated carbon filtering device is connected with an electroplating production line, and liquid substances passing through the filtering and separating production line flow through the activated carbon filtering device and then enter the electroplating production line.
10. The method for recycling and processing the waste composite copper film as claimed in claim 7, wherein one end of the filtering and separating production line is connected with a cleaning and drying line, the cleaning and drying line is connected with a briquetting machine, and the solid substances passing through the filtering and separating production line enter the briquetting machine to be compressed into briquettes after passing through the cleaning and drying line.
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| CN202210072744.9A CN114407237A (en) | 2022-01-21 | 2022-01-21 | Waste composite copper film recovery processing method |
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| CN202210072744.9A CN114407237A (en) | 2022-01-21 | 2022-01-21 | Waste composite copper film recovery processing method |
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| CN113199657A (en) * | 2021-04-30 | 2021-08-03 | 浙江工业大学 | Method for recycling diaphragm material from waste lithium ion battery |
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2022
- 2022-01-21 CN CN202210072744.9A patent/CN114407237A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088266A (en) * | 1993-12-27 | 1994-06-22 | 杨春青 | The method and apparatus of leaching and recoverying copper, silver, gold, lead, iron, sulphur from sulphuretted copper ore |
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| CN108642285A (en) * | 2018-04-17 | 2018-10-12 | 安徽华铂再生资源科技有限公司 | A kind of comprehensive recycling process of reviver industry lead copper matte |
| CN113199657A (en) * | 2021-04-30 | 2021-08-03 | 浙江工业大学 | Method for recycling diaphragm material from waste lithium ion battery |
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