前言当今世界已发现的钼资源约3000万吨金属钼,其中美国约占一半以上,约1600万吨。由于美国不但资源丰富,原矿品位高(一般含MoS_2为0.3～0.45％),而且又多为易选矿石,故美国在钼的生产上一直遥遥领先,长期以来垄断国际市场。但随着钼的用途不断地扩大,近年来 Preface The world has found about 30 million tons of molybdenum resources of molybdenum, of which about half of the United States, about 16 million tons. As the United States not only has abundant resources and high ore grade (generally containing 0.3-0.45% of MoS_2), but also is more likely to be beneficiated ore, the United States has been far ahead in the production of molybdenum and has long dominated the international market. However, with the continuous expansion of the use of molybdenum in recent years