RUI: Energies of Mineral Processes

RUI：矿物加工的能源

• 批准号: 9303814
• 负责人: Guy Hovis
• 金额: $ 11.78万
• 依托单位: Lafayette College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-09-15 至 1998-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9303814&HistoricalAwards=false
• 关键词: RUI; Energies; Mineral; Processes

9303814 Hovis This research project will focus on energies of mineral processes. Aspects of particular interest include the energies of mixing in ternary feldspars and the nepheline- kalsilite system as determined by investigating the enthalpies and volumes of K-Na mixing, the Gibbs energies and entropies of mixing for nepheline-kalsilite as yielded by phase equilibrium (solvus) measurements, the dependence of enthalpies and volumes of mixing, normally assumed to be constant with T and P, on these variables, and the energies associated with other mineral processes such as order- disorder in orthopyroxenes and exsolution in alkali feldspars. The major techniques to be utilized include solution calorimetry, drop calorimetry, and room- and high- temperature x-ray powder diffraction.

9303814 Hovis本研究项目将侧重于矿物过程的能量。 特别感兴趣的方面包括三元霞石和霞石-六方钾霞石系统中的混合能，如通过研究K-Na混合的焓和体积所确定的，霞石-六方钾霞石混合的吉布斯能和熵，如通过相平衡（固溶线）测量所产生的，焓和混合体积的依赖性，通常假定为与T和P恒定，这些变量，以及与其他矿物过程有关的能量，如正辉石中的有序-无序和碱性长石中的出溶作用。 要利用的主要技术包括溶液量热法、滴量热法以及室温和高温X射线粉末衍射。