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冶金矿山的综合利用工作日益重要。在这一工作的整体过程中,选矿作业是首当其冲。国际间近年选矿的两大趋势,就是节约能源消耗和原料的充分综合利用。这与原料矿石的组成和结构出现贫、细、集现象是密切相关的。 几乎所有金属矿石(包括铁矿)都含有不止一种的伴生有用金属,值得回收。以钨矿为例,其矿石组成类型是多种多样的。地质学家根据钨矿床中伴生矿物的规律而进行的分类,只是对世界各主要产区范围内而言的。如有些地区钨矿物主要与辉锑矿共生,有些则与锡石或辉钼矿共生,等等。加拿大西北部钨矿床伴生金属矿物以铜铅锌为主,而在新西兰则从金矿中回收白钨。我国是钨的一大产区,从福建到云南,大致为东部多伴有辉锑矿,西部多伴有锡石(还待进一步加以证实)。
The comprehensive utilization of metallurgical mines is increasingly important. In the overall process of this work, dressing operations are the first to bear. In recent years, the two major international mineral processing trends are to save energy consumption and full utilization of raw materials. This is the raw material ore composition and structure of the poor, fine, set phenomenon is closely related. Almost all metal ores (including iron ore) contain more than one associated useful metal and are worth recycling. Tungsten ore, for example, the composition of the ore is varied. The classification of geologists based on the laws of associated minerals in tungsten deposits is only within the scope of the major producing areas in the world. For example, in some areas, tungsten minerals are mainly symbiotic with stibnite while others are symbiotic with cassiterite or molybdenite. Tungsten deposits in the northwestern part of Canada are mainly associated with copper, lead and zinc, while in New Zealand, scheelite is recovered from gold. Our country is a major producing area of tungsten. From Fujian to Yunnan, there are mostly stibnite in the east and cassiterite in the west (to be confirmed further).