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Separating and recycling method for nickel-plated copper wire

A technology for separation and recovery, nickel-plated copper, which is used in the improvement of process efficiency, the preparation of liquid hydrocarbon mixtures, the petroleum industry, etc. Short, simple method, avoid the effect of metal oxidation

Inactive Publication Date: 2018-12-21
CHANGSHA HUIJU ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Separating and recycling method for nickel-plated copper wire

Examples

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Embodiment 1

[0025] Send the nickel-plated copper wire with an inner core diameter of 2-5mm into the wire stripping machine, separate the plastic sheath on the surface of the copper-nickel copper wire, and put the plastic sheath into a vacuum pyrolysis reaction device for pyrolysis. The pyrolysis temperature is 350 ℃, the reaction pressure is 2KPa, and the pyrolysis oil is obtained; the nickel-plated copper wire stripped of the plastic sheath is sheared by a copper rice machine to obtain a nickel-plated copper rice with a length of 1-3cm; the 1.2Kg nickel-plated copper rice After mixing with 1 kg of steel balls with a diameter of 30 mm and 0.05 kg of silicone oil, add them to a vertical stirring ball mill. The speed of the ball mill is 300 r / min and the ball mill is treated for 30 minutes. The nickel coating and a small amount of copper on the surface of the nickel-plated copper rice are peeled off; Take out the materials in the ball mill, wash and sieve with alcohol to obtain a mixture of ...

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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...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B15/00C22B23/00C10G1/00
CPCC10G1/00C22B7/001C22B7/007C22B15/0006C22B15/0069C22B23/0423Y02P10/20
Inventor 张柏林袁玉香
Owner CHANGSHA HUIJU ENVIRONMENTAL TECH CO LTD
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