Industry/University Cooperative Project: Polarity of Super- critical Fluid Solvents

产学合作项目：超临界流体溶剂的极性

• 批准号: 8513784
• 负责人: Keith Johnston
• 金额: $ 10.77万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-02-15 至 1988-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8513784&HistoricalAwards=false
• 关键词: Industry; University; Cooperative; Project; Polarity

The objective is to predict the thermodynamic effects of the polarity of supercritical fluid (SF) solvents on extraction selectivities and reaction rate constants. The polarity of supercritical fluids is measured spectroscopically, using dye probes that absorb in the UV-visible region. The strength of specific interactions, such as hydrogen bonding, is measured over a wide range in pressure to identify highly selective pure and binary supercritical solvents. The microscopic spectroscopic data will be used to interpret the selectivity data for sterols and other solutes. The spectroscopic data obtained in this project can be used to design highly selective mixed supercritical fluid solvents for separation processes, and to evaluate potential new reaction processes in supercritical fluids based on the thermodymanic solvent effect.

目的是预测极性的热力学效应 超临界流体（SF）溶剂对萃取选择性的影响， 反应速率常数 超临界流体的极性是 光谱测量，使用染料探针，吸收在 紫外可见区。 特定相互作用的强度，例如 氢键，是在很宽的压力范围内测量，以确定 高选择性纯和二元超临界溶剂。 的 显微光谱数据将被用来解释 甾醇和其他溶质的选择性数据。 光谱数据 本项目所获得的结果可用于设计高选择性的混合 用于分离过程的超临界流体溶剂，并评估 超临界流体中潜在的新反应过程， 热力学溶剂效应