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我矿近几年来由于矿石中含钼品位的波动,以及含碳脉石矿物的影响,选矿厂生产的钼精矿达不到含钼45％的部颁标准。其中1980年～1982年期间,平均含钼由42％下降到33％。针对这种含钼35％左右的不合格精矿,采用焙烧—氨浸工艺,制造钼酸铵化工产品,初步解决了大部分钼粗精矿的积压;同时,通过不断改进技术条件,钼酸铵的生产还可以使矿山增加一部分经济收益。
In recent years, due to fluctuations in the grade of molybdenum contained in the ore and the influence of carbonaceous gangue minerals, the molybdenum concentrate produced by the concentrator can not meet the ministry standard of containing 45% molybdenum. Among them, from 1980 to 1982, the average molybdenum decreased from 42% to 33%. Aiming at the unqualified concentrate containing about 35% molybdenum, the ammonium molybdate chemical product is manufactured by roasting-ammonia leaching process, which initially resolves the backlog of most molybdenum rough concentrates. At the same time, by continuously improving the technical conditions, molybdic acid Production of ammonium can also add some economic benefits to mines.