Vapor-liquid equilibria(VLE) of binary mixed solvent systems

• Main Author: 蔡曜隆
• Other Authors: 夏ㄧ民
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/28254880837770085070

碩士 === 明新科技大學 === 化學工程研究所 === 96 === PGME (propylene glycol monomethyl ether) is widely used as photoresist edge bead remover (EBR) in the liquid crystal display (LCD) manufacturing process. It is important to provide accurate vapor-liquid equilibrium data of binary water + PGME and methanol + PGME systems for the design of separation units. In the experimental part, a static-type VLE meauurement apparatus was utilized at atmosphere pressure. For the water + PGME system, an azeotrope is formed at 83 mol% of water. The vapor-liquid equilibrium data were correlated by the NRTL and the UNIQUAC activity coefficient models. For both systems, the calculated results agree well with the experimental ones, with the mean deviation of vapor phase composition and bubble point temperature being less than 1% and 0.8K, respectively.