Separating and recycling method for nickel-plated copper wire

Abstract

The invention provides a separating and recycling method for a nickel-plated copper wire. The separating and recycling method comprises the steps that firstly, plastic skin on the surface layer of thenickel-plated copper wire is separated, and the plastic skin is put into a vacuum pyrolysis reaction device to be pyrolyzed; secondly, the nickel-plated copper wire of which the plastic skin is stripped is cut by a copper graining machine to be converted into nickel-plated copper grains; thirdly, the obtained nickel-plated copper grains, steel balls and medium oil are mixed according to a certainproportion and subjected to ball milling treatment, cleaning and screening are conducted by adopting alcohol, and nickel-removed copper grains and a nickel and copper powder mixture are obtained; andlastly, the nickel and copper powder mixture is put into diluted hydrochloric acid for a reaction, filtering is conducted, and a nickel chloride solution and copper powder are obtained. According tothe separating and recycling method for the nickel-plated copper wire, separating and recycling treatment is conducted in a targeted mode according to the physicochemical characteristics of the plastic skin of the nickel-plated copper wire, copper and nickel, the whole recycling process is clean and has no pollution, and the recycling rate is high.

Description

Technical field: [0001] The invention belongs to the field of recycling of secondary resources, and in particular relates to a method for separating and recycling nickel-plated copper wires. technical background: [0002] Very thin copper wires are more likely to be damaged due to oxidation and corrosion. The conductors are twisted from single wires with a diameter of 0.015 inches (0.38mm) and below. Nickel-plated copper single wires are used to prevent oxidation of the surface of the copper single wires. [0003] Nickel-plated copper wire refers to a wire that is coated with a layer of nickel on copper by electrolysis or chemical methods. Nowadays, copper wire is used more and more widely. The role of nickel-plated copper wire is to make parts have excellent corrosion resistance, wear resistance, weldability and high hardness, etc., to meet the use requirements of parts and improve the service life of parts . [0004] With the development of the power communication indust...

AI Technical Summary

Problems solved by technology

It can be seen from the above methods that most of the recovery of copper and nickel adopts high-temperature smelting, electrolysis and other processing methods, which have high energy consumption, long recovery process, high recovery cost, and great hidden dangers of secondary pollution.

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