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苏联早在50年代就研究成功了处理钼精矿提取钼和铼的两种优选工艺。一是在沸腾炉中氧化焙烧精矿,从焙烧炉气中回收铼和一部分钼,并且利用氨溶液浸出灰渣和粉尘,再从溶液中吸离萃取钼和铼。二是在碱性介质中利用氧化剂浸出精矿,提取吸离的铼和沉淀钼酸钙。后来,又开发和采用了硝酸分解钼精矿的工艺,它借助了溶液再处理
As early as the 1950s, the Soviet Union successfully studied two preferred processes for the extraction of molybdenum and rhenium from molybdenum concentrates. First, the roaster in the oxidation roasting concentrate, rhenium recovery from the roaster gas and a portion of molybdenum, and the use of ammonia solution leaching ash and dust, and then extracted from the solution extraction molybdenum and rhenium. The second is the use of oxidants in alkaline medium leaching concentrate, extraction of rhenium and precipitation precipitated calcium molybdate. Later, the process of decomposing molybdenum nitrate with nitric acid has also been developed and used. With the help of solution reprocessing