Measurement and correlation of solubility of 9-fluorenone in 11 pure organic solvents from T = 283.15 to 323.15 K  

作　　者：Huiqi Wang Jianpo Ren Shihao Zhang Jiayu Dai Yue Niu Ketao Shi Qiuxiang Yin Ling Zhou 

机构地区：[1]School of Chemical Engineering and Technology,State Key Laboratory of Chemical Engineering,Tianjin University,Tianjin 300072,China [2]Sinochem Hebei Xinbao Chemical Technology Co.,Ltd,Handan 056500,China [3]The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Journal of Chemical Engineering》2023年第8期235-241,共7页中国化学工程学报（英文版）

基　　金：supported by Tianjin Municipal Natural Science Foundation (21JCYBJC00600)。

摘　　要：In this work, the solubility data of 9-fluorenone in 11 pure solvents(methanol, ethanol, n-propanol, isopropanol, n-butanol, iso-butanol, acetonitrile, ethyl formate, ethyl acetate, dimethyl sulfoxide, n-hexane)were measured by the gravimetric method from 278.15 K to 318.15 K under atmospheric pressure. The results showed that the solubility of 9-fluorenone in all tested solvents increased with the raised temperature. The solubility data were correlated by the modified Apelblat equation, λh model and NRTL(nonradom two fluid) model. The average relative deviation(ARD) correlated by three thermodynamic models in different solvents was all below 5%, which indicated that the three thermodynamic models fit the solubility data well. Furthermore, the mixing thermodynamic properties of 9-fluorenone in pure solvent systems were calculated via NRTL model. The results indicated the dissolution process of 9-fluorenone is spontaneous and entropically favorable. The solubility and the mixing thermodynamic properties provided in this paper would play an important role in industrial manufacture and follow-up operation of 9-fluorenone.

关 键 词：9-Fluorenone SOLUBILITY Correlation model Thermodynamic properties 

分 类 号：TQ244.2[化学工程—有机化工]