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Recovery process of tungsten and cobalt from tungsten-cobalt alloy waste

A tungsten-cobalt alloy and waste technology, which is applied in the field of scrap metal recycling and reuse, can solve the problems of high cost and complicated process, and achieve the effects of low cost, simple equipment structure and high economic benefit.

Active Publication Date: 2020-04-03
河北罗奇新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these processes have the problems of complex process and high cost, and only further purification of tungsten carbide powder has not fundamentally solved the problem of sufficient separation of alloy waste

Method used

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  • Recovery process of tungsten and cobalt from tungsten-cobalt alloy waste
  • Recovery process of tungsten and cobalt from tungsten-cobalt alloy waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 and figure 2 As shown, this embodiment includes two electrolytic tanks 2 arranged side by side, and a horizontal copper plate 3 is tiled on the bottom of one of the electrolytic tanks 2, and the horizontal copper plate 3 is connected to the negative pole of the high-frequency power supply 1 through a wire. At least one electrolytic box 5 is arranged in each electrolytic cell 2, and a titanium mesh 6 is arranged in the electrolytic box 5, and each titanium mesh 6 is connected to the positive pole of the high-frequency power supply 1 through a wire. At least one vertical copper plate 4 is also arranged in each electrolytic cell 2, and the lower end of the vertical copper plate 4 in the electrolytic cell 2 on which the horizontal copper plate 3 is laid is in contact with the horizontal copper plate 3. In one of the electrolytic cells 2 A lead is connected between any vertical copper plate 4 in the electrolytic tank 2 and any vertical copper plate 4 in th...

Embodiment 2

[0031]In this embodiment, concentrated hydrochloric acid and water are added to the electrolytic cell 2, the volume ratio of concentrated hydrochloric acid to water is 1:3, the electrolysis time is 13 days; the hydrogen furnace deoxidation time is 30 minutes, and the liquid boiling temperature in the stainless steel pot is 80°C. Other parameters and steps in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0033] In this embodiment, concentrated hydrochloric acid and water are added to the electrolytic cell 2, the volume ratio of concentrated hydrochloric acid to water is 1:5, the electrolysis time is 20 days; the hydrogen furnace deoxidation time is 20 minutes, and the liquid boiling temperature in the stainless steel pot is 40°C. Other parameters and steps in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses a technology of recovering tungsten and cobalt in tungsten-cobalt alloy waste materials. A facility comprises two electrolytic baths, wherein electrolytic boxes are arranged inthe electrolytic baths. Titanium meshes are arranged in the electrolytic boxes. The technology comprises the steps that hydrochloric acid is added to the two electrolytic baths, the tungsten-cobalt alloy waste materials are put into the electrolytic boxes so that the tungsten-cobalt alloy waste materials can clamp and fix the titanium meshes in the middles of the electrolytic boxes, the tungsten-cobalt alloy waste materials submerge in liquid in the electrolytic baths, and electrolysis is conducted for 5-20 days; solids in the electrolytic boxes are taken out, cleaned, dried in the air and put into a hydrogen furnace to be deoxidized, and ball milling, breakage and screening are conducted, so that tungsten carbide is obtained; and the remaining liquid in the electrolytic baths is put intoa stainless steel kettle, ammonium oxalate is added to form a mixture, and the mixture is decocted and then dried, so that rough cobalt oxalate is obtained. As a result, the novel electrolysis facility is arranged, the tungsten-cobalt alloy waste materials are directly put into the electrolytic boxes to be electrolyzed so as to recover tungsten and cobalt, the technology of recovering tungsten and cobalt in the tungsten-cobalt alloy waste materials is provided, is simple in technology and low in cost, and has the advantages of being high in recovery rate, simple in facility, easy to operate,high in economic benefit and the like.

Description

technical field [0001] The invention belongs to the technical field of waste metal recovery and reuse, and in particular relates to a process for recovering tungsten and cobalt from tungsten-cobalt alloy waste. Background technique [0002] At present, with the continuous development of society, industrial modernization is becoming more and more mature, and the consumption of cemented carbide is also increasing. It is becoming more and more important to make full use of limited tungsten resources and cobalt resources. The recycling and reuse of tungsten-cobalt alloy waste It is also becoming more and more realistic. [0003] The existing recycling of tungsten-cobalt alloy waste generally adopts the electrolysis method and the zinc melting method. Among them, the electrolysis method is widely used due to the low content of zinc impurities in the recycled product. Many manufacturers have developed their own electrolytic recovery equipment for tungsten-cobalt alloy waste and c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B3/04C22B3/44C22B7/00C01B32/949
CPCC01B32/949C01P2006/80C22B3/045C22B3/44C22B7/007C22B23/0423C22B23/0461Y02P10/20
Inventor 王朋
Owner 河北罗奇新材料科技有限公司