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1.世界钨矿资源自然界的钨,除了很稀有的辉钨矿(WS_2)外,大部分矿物都是钨酸盐,已知的含钨矿物约有20种以上,其中有工业开采价值的主要有黑钨矿、白钨矿和含钼钨矿。钨矿中含 WO_30.2%左右即为工业矿石,矿石采出后,经过复杂的选矿处理所得的精矿,才能适应工业生产的需要。我国钨的储量、产量和出口量均为世界第一位,1981年美国矿业局发表的统计数字见表Ⅳ—1。
1. World Tungsten Minerals Tungsten in nature, most of the minerals are tungstates except for the very rare wolframite (WS 2), and there are about 20 known tungsten-bearing minerals, among which the major industrial value of mining Wolframite, scheelite and molybdenum-containing tungsten ore. Tungsten ore containing WO_30.2% or so that is industrial ore, ore mining, after the complex beneficiation resulting concentrate, in order to adapt to the needs of industrial production. China’s tungsten reserves, production and export volume are the world’s No. 1 in 1981, the United States Bureau of Mines published statistics in Table IV-1.