Tungsten Carbide Recovery from Hard Material Scrape: Review

Abstract

Tungsten scraped carbide and end of life materials require new techniques of recycling for recovery of precious refractory and key metals like tungsten, cobalt, nickel, etc. The effective processing of this material has substantial economic advantages over its mineral. Several approaches are used based on electrochemical recycling method for WC products have been explored. This review aims to investigate recycling carbide tungsten from tungsten carbide scrap by electrochemical method. The aim of the study is to generate value for tungsten carbide scrap from a local production by assisting to pick a cost-effective and pollution-free technique of recovery from tungsten carbide scraps. The study concentrates mostly on cemented WC. The research will not cover the cemented carbides of more than one cementing component, such as nickel or cobalt. The comparative simplicity of the process flow system, as well as the cheap capital and energy expenses, are advantages of this ecologically friendly technique. The results of these investigations can be utilized for large-scale laboratory, semi-experimental, and experimental-industrial balancing testing.