It is reported that hard alloy scrap is treated by electroosmosis and electrolysis together taking sulfuric acid as electrolyte in order to recover cobalt metal and Tungsten Carbide.

• 报道了以硫酸为电解质，同时用电溶法和电渗析法处理废硬质合金、回收金属钴和碳化钨的原理和方法。