Recycling of Waste Hard Alloy via Electrochemical Dissolution Method

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Abstract:

Electrochemical dissolution method was used to achieve the recycling of waste hard alloy. Tungsten, cobalt powder and cobalt salts can be obtained through the control of suitable conditions of electric dissolution process ,such as cleaning of waste hard alloy, electric dissolution of waste hard alloy, knocking the basket, treatment of cobalt chloride etc. Tungsten and cobalt chloride solution can be obtained directly by this method, and thus to obtain the cobalt powder and cobalt salts. Recovery rate of WC and cobalt were above 98% and 92-95%.

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Periodical:

Advanced Materials Research (Volumes 610-613)

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2263-2267

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Online since:

December 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] LIU Xiuqing, XU Sumin, WANG Kaiqun. Recycling of Waste WC-Co Alloy[J].NON FERROUS M ETA LS, 2003,55(3):59-61.

Google Scholar

[2] LIU Sha, LIU Gang, YANG Gui-binA, et al.A New Environmental-acceptable Process for Regeneration of Cemented Carbide Scraps[J].Rare Metals and Cemented Carbides, 2004,32(2):21-24.

Google Scholar

[3] Zhang Waiping. Study on the Processing of Low-Co Cemented Carbide Scraps by Electrochemical Method[J].CEMENTED CARBIDE, 2006,23(2):107-109.

Google Scholar

[4] Zhang Li, Chen Shu, Xiong Xianjun.Study on the Quality Control of Tungsten Carbide Powder Reclaimed by Electrochemical Method[J].CEMENTED CARBIDE, 2006,23(2):103-106.

Google Scholar

[5] YANGJian gao, HUANG Bo yun, LIU Yong. A New Method of Producing Ultrafine WC-Co Composite Powder from Scrap Sintered Carbide[J].China Tungsten Industry, 2003,18(2):35-37.

Google Scholar

[6] Tang Qingyun. THE TREATMENT OF HARD ALLOY SCRAP TO RECOVER COBALT MELT AND TUNGSTEN CARBIDE BY ELECTROOSMOSIS AND ELECLROLYSIS[J].CEMENTED CARBIDE, 2000,17(3):147-150.

Google Scholar

[7] CAO Zhong-liang, TANG Qing-yun, DUAN Dongping. Preparation of 12-Phosphotungstic A cid&Cobalt Powder with Disused Hard Alloy Anvil[J].H ENAN CHEM ICA L INDUSTRY, 2006,23(5):24-26.

Google Scholar