高含泥氧化铜矿加温搅拌浸出试验研究

In order to determine optimal process parameters of agitation leaching, this paper carried out some experiments on leaching behavior of copper oxide ore with high mud content. First, uniform design is used to proceed test scheme design and regression analysis of experimental results. Data show that the liquid-solid ratio and acidity has the more great contribution to the copper leaching efficiency, and stirring time and acidity has the more great contribution to the acid consumption. Then, the experiment about agitation leaching effects under three kinds of liquid-solid ratio, 3.75:1、4:1 and 4.25:1, is carried on. The results show that the increase in liquid-solid ratio can improve the leaching efficiency of copper, which has resulted in increased acid consumption. With the sulfuric acid increase, the leaching efficiency of copper can not improve, but it can accelerate the leaching of ferrous, and a large number of sulfuric acid will be consumed by the reaction with the gangue minerals. When the liquid-solid ratio is 4:1 and the acidity is 50~55g/L, copper or iron leaching efficiency and acid consumption have better combination relations.