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前言黄铜矿(CuFeS_2)是美国最丰富的含铜矿之一。从该矿中回收铜最常用的方法是氧化浸出、熔炼和精炼。氧化浸出遇到的一个问题是在未反应的黄铜矿芯周围形成元素硫产物层。硫的涂层既阻碍氧化剂向未反应芯内扩散,又阻碍铜和铁向主体溶液中扩散,因而使反应速度减慢。浸出遇到的另一个问题是铁和铜同时被氧化,两者都以最高氧化态进入主体溶液。这意味着在电沉积铜以前必
Preface Chalcopyrite (CuFeS 2) is one of the most abundant copper-bearing mines in the United States. The most commonly used method for recovering copper from the mine is oxidation leaching, smelting and refining. One problem encountered with oxidative leaching is the formation of an elemental sulfur product layer around the unreacted chalcopyrite core. The sulfur coating not only impedes the diffusion of the oxidant into the unreacted core, but also hinders the diffusion of copper and iron into the host solution, thereby slowing down the reaction. Another problem encountered with leaching is that both iron and copper are oxidized at the same time, both of which enter the bulk solution in the highest oxidation state. This means that before the electrodeposition of copper must