铜钼硫复杂共生矿石选矿新工艺研究

某斑岩型铜钼矿位于中国西藏地区,是中国近年来发现的超大型矿床。矿物种类繁多,主要可回收矿物嵌布粒度不均匀,镶嵌关系较复杂。针对该铜钼矿矿产资源,通过对影响选矿指标的条件、流程方案等进行研究,确定了合理的选矿流程结构和药剂制度,获得了较理想的选矿技术指标:总铜精矿品位22.85%、铜回收率87.17%;钼精矿品位48.85%、钼回收率68.96%;硫精矿品位40.75%,硫回收率61.07%。试验结果表明,采用铜钼等可浮选再分离—铜硫混合浮选分离工艺,可以综合回收铜、钼、硫矿物。

STUDY ON MINERAL PROCESSING TECHNOLOGY FOR COMPLEX SYMBIOTIC COPPER-MOLYBDENUM-SULFUR ORE

A porphyry copper-molybdenum ore in Tibet is an important super large deposit recently discovered in China.There are varieties of minerals in the ore with particle size of main recyclable minerals inhomogeneous and complicated disseminated.The conditions affecting the index of mineral processing and the process scheme are studied to utilize the copper-molybdenum mineral resources,and the optimal mineral processing flowsheet structure and reagent system are determined.Ideal technological indexes of mineral processing are obtained as followings: total copper concentrate grade 22.85%,recovery 87.17%;molybdenum concentrate grade 48.85%,molybdenum recovery 68.96%;and sulfur concentrate grade 40.75%,sulfur recovery 61.07%.The test results show that copper-molybdenum iso-floatabity flotation separation-copper-sulfur mixed flotation separation process can comprehensively enhance the recovery of copper,molybdenum and sulfur minerals.