采用了Constrained Chemical Potential Method(CCPM)法对Sb-S-O-H系进行多组元平衡分析,共有24个气相组分考虑在内.研究了Sb-S-O-H系气态平衡组成与水蒸气分压、硫势、氧分压及温度的关系.结果表明Sb-S-O-H系主要的气相组成为Sb4O6、H2...采用了Constrained Chemical Potential Method(CCPM)法对Sb-S-O-H系进行多组元平衡分析,共有24个气相组分考虑在内.研究了Sb-S-O-H系气态平衡组成与水蒸气分压、硫势、氧分压及温度的关系.结果表明Sb-S-O-H系主要的气相组成为Sb4O6、H2O和SO2,其它物种的分压都比较低.控制较低的硫势(≤10-8.2atm)和氧势(10-14.5～10-13.5atm)以及合适的温度(1023～10733K)时,气相中的Sb4O6最大,有利于锑的挥发.用水蒸气焙烧三硫化锑精矿的挥发产物XRD结果表明挥发产物的主要物相由Sb2O3组成,同时还含有少量的元素硫。展开更多
When species in the solution undergo multiple chemical reactions, the solution may be treated as a solution of all species actually present or as a hypothetical solution composed of elemental species. Based on the fu...When species in the solution undergo multiple chemical reactions, the solution may be treated as a solution of all species actually present or as a hypothetical solution composed of elemental species. Based on the fundamental thermodynamic principle, the relationships of mole numbers, molar fractions, thermodynamic properties, partial molar properties, potential and fugacity between the hypothetical solution of elemental species and the equilibrated solution of actual species were derived. The hypothetical elemental solution provides a way of reducing the dimensionality of problem, simplifying the analysis and visualizing the phase behavior.展开更多
Based on the concept of “element” and the fundamental thermodynamic principle,the relationships of the residual properties,the property changes of mixing,excess properties,fugacity coefficients and activity coeffici...Based on the concept of “element” and the fundamental thermodynamic principle,the relationships of the residual properties,the property changes of mixing,excess properties,fugacity coefficients and activity coefficients between the hypothetical solution of elemental species and the equilibrated solution of actual species were established.The hypothetical solution of elemental species provides a way of reducing the dimensionality of problem, simplifying the analysis and visualizing the phase behavior.展开更多
文摘采用了Constrained Chemical Potential Method(CCPM)法对Sb-S-O-H系进行多组元平衡分析,共有24个气相组分考虑在内.研究了Sb-S-O-H系气态平衡组成与水蒸气分压、硫势、氧分压及温度的关系.结果表明Sb-S-O-H系主要的气相组成为Sb4O6、H2O和SO2,其它物种的分压都比较低.控制较低的硫势(≤10-8.2atm)和氧势(10-14.5～10-13.5atm)以及合适的温度(1023～10733K)时,气相中的Sb4O6最大,有利于锑的挥发.用水蒸气焙烧三硫化锑精矿的挥发产物XRD结果表明挥发产物的主要物相由Sb2O3组成,同时还含有少量的元素硫。
基金Supported by the National Natural Science Foundation of China (No. 29976035) and the Natural Science Foundation of Zhejiang and Fujian Province.
文摘When species in the solution undergo multiple chemical reactions, the solution may be treated as a solution of all species actually present or as a hypothetical solution composed of elemental species. Based on the fundamental thermodynamic principle, the relationships of mole numbers, molar fractions, thermodynamic properties, partial molar properties, potential and fugacity between the hypothetical solution of elemental species and the equilibrated solution of actual species were derived. The hypothetical elemental solution provides a way of reducing the dimensionality of problem, simplifying the analysis and visualizing the phase behavior.
基金Supported by the National Natural Science Foundation of China (No. 29976035) and the Natural Science Foundation of Fujian Province (No. B9810011).
文摘Based on the concept of “element” and the fundamental thermodynamic principle,the relationships of the residual properties,the property changes of mixing,excess properties,fugacity coefficients and activity coefficients between the hypothetical solution of elemental species and the equilibrated solution of actual species were established.The hypothetical solution of elemental species provides a way of reducing the dimensionality of problem, simplifying the analysis and visualizing the phase behavior.
