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发明公开
CN104232919A 一种从钌铱锇矿中提取贵金属的工艺 无效 - 撤回

一种从钌铱锇矿中提取贵金属的工艺
摘要：
本发明涉及一种从钌铱锇矿中提取贵金属的工艺：钌铱锇矿碎化后，先火法氧化挥发绝大部分Os，并用NaOH溶液吸收之，残渣用过氧化钠熔融后水浸出，再用乙醇还原Ru，浸出渣送铱提取。所述工艺所得产品纯度均＞99.9%，贵金属总回收率＞90%，铱回收率＞95%，取得了较好的经济效益。
摘要（英）：

A related technology for extracting noble metals from rutheniridosmine comprises crushing rutheniridosmine, using a fire method to oxidize and volatilize the vast majority of Os and using a NaOH solution to absorb Os, fusing residue with sodium peroxide and leaching with water, then using ethanol to reduce Ru, and sending the leaching slag to an iridium extraction process. The purity of products obtained in the technology are all larger than 99.9%, the noble metal total recovery rate is larger than 90%, the iridium recovery rate is larger than 95%, and relatively good economic benefit is obtained.

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