某地氧化铜钴矿属风化残留矿床,是一种结合性的土状氧化矿,粒度较细,-200目占60％ (其中一10μ占55～60％),含硫、铜、钴亦低,二氧化硅含量高,组成波动大,用一般的选冶法处理存在一定困难。 1974年,我们采用硫酸亚铁和二氧化硫作还原剂,对该矿进行了直接还原浸出、净化除铁、沉钴和沉锰的小型和扩大性试验,获得了较好的指标,得到了硫化钴、碳酸锰和铜铁渣等中间产品,钴的直 A copper oxide and cobalt ore mine is a weathered residue deposit. It is a combined type of earthy oxide ore with a fine grain size of -200% (accounting for 55-60% of the total), sulfur, copper and cobalt also Low, high silica content, composition fluctuations, with the general treatment of the election there is a certain difficulty. In 1974, we used the ferrous sulfate and sulfur dioxide as the reductant, and carried out the direct reduction leaching of the ore to purify the small scale and expandability test of iron removal, cobalt sinking and manganese sinking. The better indexes were obtained and the cobalt sulfide , Manganese carbonate and iron slag and other intermediate products, cobalt straight