The copper and sulfur grade of a copper ore in Inner Mongolia is 0.84%and 8.32%,re-spectively.The main recoverable minerals are chalcopyrite and pyrite.In order to recover copper and sul-fur in the ore,the suitable roughing conditions are determined by conditional tests.With grinding fineness of-0.038 mm accounted for 70%,lime dosage of 2 500 g/t,Z-200 dosage of 80 g/t,and 2#oil dosage of 10 g/t for copper bulk flotation,and sulfuric acid dosage of 3 000 g/t,xanthate dosage of 80 g/t for sulfur bulk flotation.On thess basis,copper is recovered by one roughing three cleaning one scavenging flotation,copper tailings are subjected to one roughing one cleaning one scavenging to recover sulfur closed-circuit flotation test.Finally,copper concentrate with copper grade of 19.67%and copper recovery of 87.46%is ob-tained,and sulfur concentrate with sulfur grade of 51.10%and sulfur recovery of 95.31%is obtained,which better realized the comprehensive recovery of copper and sulfur in the ore.
关键词
黄铜矿/浮选/优先浮选铜/黄铁矿
Key words
chalcopyrite/flotation/preferential flotation of copper/pyrite
维普
万方数据