摘要
从 Sarcheshmeh 辉钼矿的 MoO3 的生产经由一个 pyro-hydrometallurgical 过程专注 studied.The 辉钼矿专注并且钠碳酸盐是 premixed 并且在空气下面熔化了 atmosphere.Then 熔化产品在水里被沥滤，溶解的铝作为铵 molybdate.The 铵 molybdate 被恢复然后被锻烧生产 mo-lybdic oxide.At 熔化阶段。
The production of MoO3 from Sarcheshmeh molybdenite concentrate via a pyro-hydrometallurgical process was studied.The molybdenite concentrate and sodium carbonate were premixed and fused under air atmosphere.Then the fused products were leached in water and the dissolved molybdenum was recovered as ammonium molybdate.The ammonium molybdate was then calcined to produce mo-lybdic oxide.At the fusion stage,the effect of the mass ratio of carbonate to sulfide on the reaction products and the solubility of the products was investigated.The results show that during the fusion,sodium molybdate and sodium sulfate are the final reaction products and sodium sulfide is detected as an intermediate reaction product.By melting at 850℃with 5wt%excess carbonate,the maximum solubility of the products is obtained.The molybdenum is recovered from the solutions as ammonium molybdate.
