Abstract: Based on the analysis to a fine-disseminated copper ore with Cu grade 0.52%, molybdenum grade 0.028% from xinjiang, carried out the research on floatation process. The results show that: under the conditions of grinding fineness of -0.074mm 90.60%, buty1 xanthate and Z -200(mass ratio 1∶4) as collectors, through once roughing three times cleaning twice scavenging, middlings orderly return, can get the Cu-Mo mixed concentrate with Cu grade 20.52%, recovery 92.54% and Mo content 0.95%, recovery 78.04%.

Key words: Micro-fine disseminated copper ore, Chalcopyrite,Molybdenite, Bulk flotation