印度用物理选矿与苏打焙烧 -水浸法联用从多金属锡 -钨矿中回收钨。在这种矿石中 ,锡石、黑钨矿和白钨矿是主要有用矿物。但是 ,大量黑钨矿细粒散布在白钨矿中。这种复合材料的矿化性质限制了用物理分选法经济地产生黑钨矿或白钨矿的单独精矿。据此 ,用物理富集法首先获得无其 India rejuvenates tungsten from polymetallic tin-tungsten mines using physical beneficiation and soda roasting-flooding methods. Among these ores, cassiterite, wolframite and scheelite are the main useful minerals. However, a large amount of wolframite particles are dispersed in scheelite. The mineralization of this composite material limits the individual concentrates that economically produce wolframite or scheelite by physical separation. Accordingly, using the method of physical enrichment first without its