EXPERIMENTAL RESEARCH ON MINERAL PROCESSING OF OXIDE COPPER ORE IN TIBET

In order to provide mineral processing solution for the exploitation and utilization of a certain refractory oxide copper deposit in Tibet,a research on mineral processing technology has been conducted.According to the characteristic of process mineralogy of the ore,the pilot test shows that on the basis of conventional sulphidizing flotation technology,when a technological process of flotation separation by differential rough flotation of sulphide copper ore and oxide copper ore and combined cleaning after mixing of sulphide and oxide copper rough concentrates,the use of new and high efficiency collector can effectively realize the separation of copper and comprehensive recovery of associated gold and silver from the ore.The indexes from closed circuit flotation pilot test are: concentrate grade of copper ore is 31.66%;concentrate recovery of copper ore 83.25%;gold content 1.50g/t and silver content 106g/t for concentrate of copper,flotation recovery rate of gold and silver is 78.62% and 64.35% respectively.