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金-锑矿石及共精矿均属于难以直接氰化的原料。因为这种方法不仅难以保证金的回收率,而且还需要消耗大量氰化物。 苏联国立稀有金属科学研究所伊尔库茨克分所的研究表明,硫脲是从含锑物料中回收金的有效溶剂。参考文献中最先研究了,在溶液中添加二硫甲脒(S_2C_2N_4H_6)作为三价铁离子的氧化剂条件下硫脲溶液溶解金的动力学。 文章中列举了以过氧化氢作为氧化剂添加在硫脲溶液中,金溶解动力学的补充研究结果。硫脲能与锑生成络合物。为了确定从金-锑原料中优先浸出金的可能性,又研究了三价硫化锑和三价氧化锑在硫脲溶液中溶解的动力学。
Gold - antimony ore and co-concentrate are difficult to direct cyanidation of raw materials. Because this method is not only difficult to guarantee the recovery rate of gold, but also need to consume large amounts of cyanide. Studies at the Irkutsk Division of the National Institute of Rare and Scientific Research at the Soviet Union show that thiourea is an effective solvent for recovering gold from antimony-containing materials. The first reference in the literature, the dithiolactam (S_2C_2N_4H_6) was added to the solution as a ferric ion oxidizer in the thiourea solution to dissolve gold kinetics. The article lists the results of a supplementary study of the kinetics of gold solubilization by adding hydrogen peroxide as an oxidant in a thiourea solution. Thiourea can form complexes with antimony. In order to determine the possibility of preferential leaching of gold from gold-antimony raw materials, the kinetics of the dissolution of trivalent and antimony trioxide in thiourea solutions was also studied.