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研磨的矿样,先用15％醋酸铵溶液100毫升于95℃水浴恒温溶解分离出硫酸钴,残渣经2N的硝酸80毫升于60℃水浴加入过氧化氢(1:1)20毫升恒温1小时溶解硫化钴,余渣和滤纸灰化后用王水-氢氟酸-硫酸于聚四氟乙稀烧杯中加热浸出硅酸盐中的氧化钴,用三正辛胺-亚硝基R盐-钴络合物萃取光度法测定出钴量计算出各相钴化合物的含量。
Grinding ore samples, first with 15% ammonium acetate solution 100 ml at 95 ℃ water bath at room temperature to dissolve dissolved cobalt sulfate, the residue by 2N nitric acid 80 ml in 60 ° C water bath hydrogen peroxide (1: 1) 20 ml thermostat 1 hour Dissolve the cobalt sulphate, the residue and the filter paper, and then oxidize the cobalt oxide in the silicate by using aqua regia - hydrofluoric acid - sulfuric acid in polytetrafluoroethylene beaker, and use the trioctylamine - nitroso R salt - Cobalt complex extraction spectrophotometric determination of cobalt content calculated cobalt content of each phase.