本文探索了湿法制备除钴用Pb—Sb置换锌粉的方法。此法设备简单,操作方便。制备的Pb—Sb置换锌粉含Pb0.5～2％,Sb0.03～0.6％。由于Pb、Sb均覆盖于锌粉表面,它比之于喷雾或蒸溜锌粉有更强的活性。用此锌粉对硫酸锌溶液进行深度净化时,溶液含钴高达45mg/l,Pb—Sb置换锌粉的除钴率仍可达99％,而且锌粉耗量仅为锑法除钴的一半。 This paper explored the wet process for the preparation of cobalt with Pb-Sb replacement of zinc powder. This method is simple, easy to operate. Preparation of Pb-Sb replacement of zinc powder containing Pb0.5 ~ 2%, Sb0.03 ~ 0.6%. Because Pb, Sb are covered on the surface of zinc powder, it is more active than spray or steaming zinc powder. With this zinc powder for deep purification of zinc sulfate solution, the solution containing cobalt up to 45mg / l, Pb-Sb replacement of zinc powder is still up to 99% of cobalt removal, and zinc consumption is only half of the antimony removal of cobalt law .