用氯化物氢还原法从废料中回收高熔点金属和合金具有良好未前景。用此方法我们以实验室规模获得了W,Ta,Nb金属和和W-Ta,W-Mo合金的超细粉末。这些超细粉的粒度通常小于0.1μm。用CH_4/H_2混合物或碳黑可将它们碳化。用碳黑碳化W-Ta合金粉得到了W-Ta的混合碳化物,用这种碳化物制得的硬质合金,在结构和切削性能上均较一般硬质合金优越。 The recovery of high melting point metals and alloys from waste using the chloride hydrogen reduction method has good prospects. Using this method we obtained ultrafine powders of W, Ta, Nb metals and W-Ta and W-Mo alloys on a laboratory scale. The particle size of these fine powders is usually less than 0.1 μm. They can be carbonized with a CH 4 / H 2 mixture or carbon black. Carbon black W-Ta alloy powder was W-Ta mixed carbide, carbide carbide obtained by this carbide in the structure and cutting performance superior to the average cemented carbide.