处理锡钨精矿的工厂中间产品,可作为铌和钽的补充原料。因为许多矿床的锡石和锰铁钨矿除了含有钪(Sc)以外,还含有大量的铌和钽。在冶金处理过程中,这些金属转入锡还原的熔渣中和浸出钨的固体残渣中。在从这些产品中提取钪的过程中,Ta 和Nb 留在残渣里,即所谓洗后“钨”和“渣”滤饼。 Industrial intermediates for the processing of tin-tungsten concentrates as a supplement to niobium and tantalum. Because many deposits of cassiterite and ferromanganese in addition to containing scandium (Sc) also contains a lot of niobium and tantalum. In the metallurgical process, these metals are transferred to the tin-reduced slag and the tungsten-leached solid residue. During the scandium extraction from these products, Ta and Nb remain in the residue, the so-called post-wash “tungsten” and “slag” filtercake.