Metal recycling process for waste plastic electroplating parts

A technology for electroplating parts and waste plastics, which is applied in the direction of photography technology, photography auxiliary technology, and process efficiency improvement. Effect

Inactive Publication Date: 2019-01-08
广东明方科技有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its process is complicated, the labor intensity is high and the pollution is serious, it is not suitable for the current situation, the development of industrialization

Method used

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  • Metal recycling process for waste plastic electroplating parts

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Embodiment Construction

[0019] Below with reference to the accompanying drawings, through the description of the implementation examples, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between each part, the role and working principle of each part, etc., will be further described. detailed instructions.

[0020] Such as figure 1 , metal recycling process of the present invention, comprises the following steps:

[0021] A. Put the waste plastic electroplating parts into the leaching equipment for leaching. The leaching agent is dilute sulfuric acid to obtain a chemical leaching solution; generally speaking, the waste plastic electroplating parts are crushed before being put into the leaching equipment to speed up the leaching speed of the metal layer ; As a preferred embodiment, the leaching equipment of this embodiment selects a leaching tower, and the leaching tower is equipped with a dispersing agitator and an air agitat...

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Abstract

The invention aims to propose a metal recycling process for waste plastic electroplating parts, wherein the metal recycling process is clean and environmentally friendly, high in metal recycling rate,and capable of reducing damages to a plastic substrate. The metal recycling process comprises the following steps: step A, leaching the waste plastic electroplating parts in leaching equipment, usingdilute sulfuric acid or sulfamic acid as a leaching agent to obtain chemical leachate; step B, filtering the chemical leachate to obtain nickel-copper mixed liquid, extracting the nickel-copper mixedliquid, wherein the nickel-copper mixed liquid is used as a water phase, diphosphate is used as an extracting agent, and sulfonated kerosene is used as a diluent during extraction; and step C, usingsulfuric acid as a back extractant for back extraction of an organic phase obtained after extraction, separating to obtain a copper-containing solution and a nickel-containing solution, and separatelyelectrolyzing the copper-containing solution and the nickel-containing solution into electrolytic copper and electrolytic nickel.

Description

technical field [0001] The invention belongs to the technical field of metal recycling technology, and in particular relates to a metal recycling technology for waste plastic electroplating parts. Background technique [0002] Waste plastic electroplating parts such as automobiles, waste household appliances and furniture decorations, plumbing components, toy casings, game console casings, etc. Every year, there are a large number of discarded plastic electroplating spare parts. The plastic of these waste plastic electroplating parts is ABS, which has a high recycling value. The plating layer includes copper, nickel, chromium, and its metal content is 10-20%. 10%, of which 3% is nickel plating, 7% is copper plating, the waste plastic electroplating parts of automobiles have higher content, nickel 12%, copper 5-7%, palladium is 4-6 g / ton per ton of waste plastic electroplating, Chromium is 4-6 kg per ton. The usual electroplating parts of waste plastics are added with hydro...

Claims

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Application Information

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IPC IPC(8): C22B7/00C25C1/12C25C1/08
CPCC22B7/007C25C1/08C25C1/12Y02P10/20
Inventor 郭大彪黄立忠吴映明
Owner 广东明方科技有限公司
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