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各种分散元素能聚积成为有工业价值者,主要是呈类质同象混入物或机械混合物存在于这种金属矿物中.这些类质同象的形成或浓集有以下几个主要因素:1.元素化合物具有相同的化学结构;2.晶格类型一致;3.基本晶胞大小的近似.即取决于元素离子本身的性质(键型、离子半径、电荷、配位数、极化、晶格能等),其中尤其以键型、离子半径及外层电子数,决定了一系列化合物晶体的化学性质,同时,温度、压力、离子浓度、氧化还原等外部因素也起着重要的作用,特别是温度的影响最大.这些因素对不同的类质同象型影响也不同,某种分散元素在各
Various disperse elements can accumulate in industrial value, mainly in the form of homogenous inclusions or mechanical mixtures in the presence of such metal minerals.The formation or concentration of these isomorphisms consists of the following major factors: 1 . The elemental compounds have the same chemical structure; 2. The lattice type is the same; 3. The approximation of the basic unit cell size depends on the nature of the elemental ions themselves (bond type, ionic radius, charge, coordination number, polarization, crystal Etc.). Among them, the bond type, the ionic radius and the number of electrons in the outer layer determine the chemical properties of a series of compound crystals. At the same time, external factors such as temperature, pressure, ion concentration and redox play an important role. Especially the temperature has the greatest impact.These factors have different effects on different types of isomorphic, some scattered elements in each