The copper mine of Dishui in Xingjiang province contains 1%~1.3% copper, which has 200,000 tons proved reserves and 500,000 tons future reserves of copper metal, and the contents of calcium oxide and magnesium oxide are over 20%. The content of-20μm slime is more than 65% under the grinding fineness of-74μm contained 85%. The oxide copper minerals in the ore are mainly in the form of cuprite, malachite, chrysocollite and azurite, and the floatability is unsatisfactory because of many kinds of copper mineral...