Abstract: In view of the high carbon content in the raw ore of a cxpper mine , carbonaceous minerals areeasy to float up in the flotation process , which affects the grade of the final copper product; In the tradi-tional flotation process ,the process of “direct selection of copper by inhibiting carbon”can be used toobtain better closed-circuit test indexes with capper grade of 19.45% and copper recovery of 85.79%，which can provide referenoe for the development and utilization of this kind of ore.

Key words: ｈｉｇｈ-ｃａｒｂｏｎｃｏｐｐｅｒｏｒｅ, ｄｉｒｅｃｔｓｅｌｅｃｔｉｏｎｏｆｃｏｐｐｅｒｂｙｉｎｈｉｂｉｔｉｎｇｃａｒｂｏｎ, ｒｅｃｏｖｅｒｙｒａｔｅ