高校化学工程学报2011，Vol.25Issue(3)：385-389,5.
枞酸在四种醇类溶剂中的溶解度测定与关联
Determination and Correlation of the Solubility for Abietic Acid in Four Alocohol Solvents
摘要
Abstract
Using the laser monitoring technique to judge the solid-liquid solubility equilibrium terminal, the solid-liquid solubility data of abietic acid in methanol, ethanol, n-propanol and n-butanol were measured by dynamic method, and the λh equation, Wilson equation and empirical equation were used to correlate the solid-liquid solubility data in the temperature range from 282 K to 320 K. The results show that the solid-liquid solubilities of abietic acid in above four alocohol solvents increase with the increase of temperature and the solubilities of abietie acid are different in different solvents, the order is: n-butanol ＞n-propanol ＞ethanol ＞methanol. When using theλh equation, Wilson equation and empirical equation to correlate the solubility data of abietie acid, the maximum average relative deviations are 1.43％,1.19％ and 1.24％, respectively. The obtained experimental solubility data and their correlation can provide essential thermodynamic data for solvent selection of abietic acid crystallization.关键词
枞酸/固液平衡/溶解度/λh方程模型/Wilson方程模型/简化方程模型Key words
abietic acid/ solid-liquid equilibrium/ solubility/ λh model/ Wilson model/ empirical model分类
化学化工引用本文复制引用
谢宏昭,周龙昌,王琳琳,黄伊玲..枞酸在四种醇类溶剂中的溶解度测定与关联[J].高校化学工程学报,2011,25(3):385-389,5.基金项目
国家自然科学基金资助项目(20976031,31060102) （20976031,31060102）
广西自然科学基金项目(0991030,2010GXNSFA013042) （0991030,2010GXNSFA013042）
梧州市科技计划项目(200901011) （200901011）
广西大学科研基金项目(081020) （081020）
广西教育厅科学研究项目([2006]26,200708LX180) （[2006]26,200708LX180）
广西教育厅科研资金项目(200700ZL015). （200700ZL015）
