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黄铜矿精矿加压高温氧化浸出(423～523K,P_(o2)=0.2～0.6兆帕),作为从溶液中生产硫酸铜的方案引起了人们的兴趣,由于减少了硫酸耗量以及降低了操作费用,因而,处理精矿中一吨铜的成本比处理废料中一吨铜的成本要低。精矿浸出时,铜能相当完全并优先(相对铁而言)进入溶液中,然而,为了强化浸出,必须中和过程累积的酸。在马德涅乌里斯基采选公司进行半工业性加压氧化浸出试验时,采用添加石灰或二氧化锰的方法以确保最佳酸度。
Chalcopyrite concentrate under pressure and high temperature oxidation leaching (423-523K, P o (o2) = 0.2-0.6 MPa) has attracted interest as a solution to the production of copper sulphate from solution due to reduced sulfuric acid consumption and reduced Operating costs, so the cost of processing one tonne of copper in the concentrate is less than the cost of treating one ton of copper in the waste. When the concentrate is leached, the copper can be quite complete and preferentially (as opposed to iron) into the solution, however, the acid that has accumulated during the process must be neutralized to enhance leaching. When the semi-industrial pressure oxidation leaching test was carried out at the mining company Ullensgold in Madhya, lime or manganese dioxide was added to ensure optimum acidity.