有色金属分步结晶精炼的热力学

Thermodynamic Principle of Nonferrous Metal Refining by Fractional Crystallization

从金属分步结晶精炼的基本概念出发 ,用键参数结合已有热力学数据讨论了金属分步结晶精炼的晶体结构、固溶体、形核与晶核长大等问题 .分析了金属分步结晶精炼的热力学特点 .在缺乏热力学数据的情况下 ,可用键参数来预测某元素在金属分步结晶精炼时的走向 .

From the beginning of the basic concept of fractional crystallization from the melt , some thermodynamic problems such as crystal structure, solid solution, nucleus forming and growing-up, have been discussed by means of bond parameters in combination with the thermodynamic data. The thermodynamic characters of fractional crystallization from the melt have been analysed. The bond parameters may be used to except the tendency of elements in fractional crystallization from the melt.