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前言随着科学技术的发展,钽铌的用途愈来愈广泛,比如钽电容器在卫星、火箭、导弹的电控系统上得到了广泛应用。铌除了广泛用作合金材料外,对于超导体和原子能工业也有很好的用途。钽铌的矿物在自然界中有130余种。作为锡炉渣中的钽铌,则赋存于含钽铌的硅酸盐矿物之中,主要系杂质状态存在,属于一些次要矿物。目前钽铌的原料供应,尤其是钽的原料供应,除了单独的钽铌铁矿等矿物之外,主要是来自锡炉渣。比如资本主义国家1974—1976年钽原料供应量每年约1034吨Ta_2O_5,
Preface With the development of science and technology, the use of tantalum and niobium is more and more widely. For example, tantalum capacitors have been widely used in the electronic control systems of satellites, rockets and missiles. In addition to being widely used as an alloying material, niobium is also well suited for the superconductor and atomic energy industries. Tantalum and niobium minerals in nature there are 130 species. As the tantalum and niobium in the tin slag, the silicate minerals containing tantalum and niobium occur mainly in the state of impurities and belong to some minor minerals. At present, the raw material supply of tantalum and niobium, especially the raw material supply of tantalum, mainly comes from tin slag, except for the minerals such as tantalum-niobium iron ore alone. For example, the supply of tantalum raw materials in the capitalist countries from 1974 to 1976 was about 1034 tons of Ta 2 O 5 per year,