江西某铜钼钨多金属矿石选矿工艺研究

Experimental Study on the Beneficiation Process for a Copper -tungsten -molybdenum Ore from Jiangxi

摘要: 江西某铜钼钨矿矿石中有用矿物以黄铜矿、辉钼矿、黑钨矿为主，并伴生有磁黄铁矿.为了给该矿产资源的开发利用提供依据，对其进行了选矿试验研究.经试验比较，采用铜钼混浮-铜钼分离-尾矿脱硫-重选回收黑钨矿的联合工艺流程.获得了比较理想的铜精矿、钼精矿、钨精矿3种精矿产品，铜精矿品位为26.38 %，回收率为91.35 %；钼精矿品位为51.23 %，回收率为83.54 %；钨精矿品位为52.58 %，回收率为65.49 %.使矿石中的有价元素得到了较好的综合回收.

Abstract: A copper-tungsten-molybdenum ore from Jiangxi contains mainly chalcopyrite、molybednite and wolframite as valuableminerals that are associated with magnetic pyrite.Beneficiation tests were made on this ore to provide a basis for its exploitation andutilization.Analyses the dressing experiment research. Test by comparison, The first, using Cu-Mo mixing floatation, Then, Cu-Mo separation, last, wolframite recovery by gravity separation. Which obtained copper concentrate grading 91.35 % at a recovery of 26.38 %; molybdenum concentrate grading 83.54 % at a recovery of 51.23 %; tungsten concentrate grading 71.25 % at a recovery of 52.58 %. Achieving a good comprehensive recovery of the valuable elements of the ore.