铜阳极泥预处理连续加压酸浸工艺开发研究

介绍了新开发出来的一种具有较好工业应用前景的铜阳极泥预处理新工艺,小型及半工业试验结果表明,铜阳极泥直接加压酸浸,可以充分利用生阳极泥中水溶性铜离子的催化氧化作用,提高反应速度;在连续浸出过程中Ag,se,Te走向与间断浸出过程差别明显,使浸出效果优于间断加压浸出预处理工艺,有利于提高有价元素的综合回收.

Research and development of the continuous pressure acid leaching technology for the pretreatment of copper anode slime

A newly developed technology for the pretreatment of copper anode slime, which has a prosperous industrial application prospect was introduced. Small-scale and half-industrialized tests show that direct pressure acid leaching of copper anode slime can make full use of the catalyzed oxidation of the water soluble copper ion in raw copper anode slime and quicken reaction speed. The trends of Ag, Se and Te in continuous leaching process are obviously different from those in discontinuous leaching process, and the leaching results are better than those of discontinuous pressure leaching technology. The new technology is good for comprehensive recycle of valuable elements.