The grinding fineness of a copper and molybdenum ore is coarse,and the combined process of column machine is applied. The process of two rough separation ( one rough flotation column,two rough flotation separator),one purification ( flotation column) and one sweep separation ( flotation machine) are adopted. Finally,the Cu and molybdenum mixed con-centrate with Cu grade of 17.24％ and Mo grade of 3.18％ is obtained. The recoveries of Cu and Mo were 92.71％ and 85.96％,respectively. In the field application,compared with the previous single flotation machine process,the Cu and Mo recovery rates increased by 0.99％ and 3.52％,respectively,and the flotation column high enrichment ratio principle was used to shorten the selection times from the original two selections to one selection,simplifying the field process.
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