Process Mineralogy of a Low-grade Polymetallic Tungsten Ore in Southwest China

A polymetallic tungsten ore is associated in a pyroxene-garnet skarn containing a variety of low grade valuable metals.The tungsten is associated with copper,bismuth,molybdenum,etc.And the gangue mineral combination is complicated in that a lot of augites and andradite are associated with high calcium minerals such as calcite,fluorite,etc.From the perspective of process mineralogy,the relationship between mineralogy characteristic of this low-grade tungsten-polymetallic ore and beneficiation was studied in this paper,focusing on the mineral composition,the occurrence of tungsten,copper,bismuth,molybdenum.This study provides an adequate basis for designing reasonable mineral processing flow-sheet.