研究了用沉淀和浮选法从水溶液和污水中除去和回收钴的方法。在用硫化钠使钴离子沉淀为CoS后 ,在酸性介质中浮选沉淀物 ,钴的最大回收率约为 70 %。在碱性介质中 ,钴形成氢氧化钴 (Co(OH) 2 ) ,钴的回收率几乎达到 10 0 %。应用引入细分散气泡的浮选柱来回收沉淀物。用十二胺作捕收剂获得了最好的浮选结果。 A method of removing and recovering cobalt from aqueous solution and sewage using precipitation and flotation was studied. After precipitating cobalt ions as CoS with sodium sulfide, the precipitate was flotated in an acidic medium and the maximum recovery of cobalt was about 70%. In alkaline media, cobalt forms cobalt hydroxide (Co (OH) 2) and the recovery of cobalt reaches almost 100%. The precipitate is recovered using a flotation column that introduces finely divided bubbles. The best flotation results were obtained with dodecylamine as collector.