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第一节精选辉钼矿精矿时杂质的浸出在处理贫硫化钼矿石中,如果不能得到合格精矿,在很多情况下必须对某些有污染和有害的杂质加以浸出。在制取当润滑材料的纯二硫化钼(MoS_2)中采用浸出,这时最终产品中的MoS_2品位必须达到99％(59％Mo)。对铝、铁、钙、镁、矽酸、铋、铜、钨、氧化钼等杂质的溶解,采用稀盐酸、氢氟酸、稀硫酸、氨液、苛性碱液、苏打液和硫化钠溶液。工业回收纯辉钼矿在精选厂进行[82,122]。前面已经讲到(第七章第五节)[175],加拿大有一个生产钼铋产品並制取辉钼矿润滑剂的
SECTION I EXTRACTION OF IMPURITIES DURING THE TREATMENT OF MOLYBDENUM ORE CONCENTRATES In the treatment of molybdenum sulphide-depleted ores, it is often necessary to leach out some contaminated and noxious impurities in many cases if qualified concentrates are not available. Leaching is used in making pure molybdenum disulfide (MoS 2) as a lubricating material when the MoS 2 grade in the final product must be 99% (59% Mo). Dissolved aluminum, iron, calcium, magnesium, silicic acid, bismuth, copper, tungsten, molybdenum oxide and other impurities dissolved, the use of dilute hydrochloric acid, hydrofluoric acid, dilute sulfuric acid, ammonia, caustic, soda and sodium sulfide solution. Industrial recovery of pure molybdenite at selected plants [82,122]. As mentioned earlier (Chapter VII, Section V) [175], a Canadian producer of molybdenum bismuth and molybdenum lubricant