我矿回收钼铋的生产流程,投产于1965年,其流程结构和药剂制度基本可以满足回收钼铋的需要。但是,存在钼精矿含铅较高(含铅4.82～7.30%)的问题。1979年,对上述问题进行了研究,并把获得的研究成果用于生产。一年来的生产实践表明,钼精矿含钼由47%提高到55%,铅含量降低到1%以下;铋精矿含铋由15%提高到20%,含钼1%以下。钼、铋回收率分别达到95%和75%。综合回收钼铋铜的原料系枱浮、浮选和白钨浮选系统脱除的硫化矿。主要金属矿物是黄铁矿、毒砂、辉钼矿、硫铅铋矿、黄铜矿、闪锌矿,辉铋矿和方铅矿次之,还有少量的磁黄铁矿、辉铜矿和黝铜矿。脉石矿物有石英和云母等。原料主要元素的含量如下表。镜下观察表明,钼精矿含铅较高是由于夹杂较多方铅矿和硫铅铋矿的缘故。改进后的流程如图所示。硫化矿脱水至70～80%固体,加硫化钠5(公斤/吨),经过两次机械 I mine recovery of molybdenum bismuth production process, put into operation in 1965, the process structure and pharmaceutical system can basically meet the needs of the recovery of molybdenum bismuth. However, there is a problem that molybdenum concentrates contain high lead (4.82-7.30% lead). In 1979, the above problems were studied and the research results obtained were used in production. Production practice over the past year shows that molybdenum concentrates contain molybdenum from 47% to 55% and lead content below 1%; bismuth concentrate containing bismuth from 15% to 20% and molybdenum below 1%. The recoveries of molybdenum and bismuth reached 95% and 75% respectively. The comprehensive recovery of molybdenum bismuth copper raw materials, Taiwan floating, flotation and scheelite flotation system to remove sulfide ore. The main metalloids are pyrite, arsenopyrite, molybdenite, fossilite, chalcopyrite, sphalerite, bismuthinite and galena followed by a small amount of pyrrhotite, chalcocite And tetrahedrite. Gangue minerals such as quartz and mica. The main elements of raw materials as follows table. Microscopic observation showed that higher molybdenum concentrate lead is due to the inclusion of more galena and lead-bismuth ore sake. The improved process is shown in the figure. Sulfide ore dehydration to 70 to 80% solids, plus sodium sulfide 5 (kg / ton), after two mechanical