Solubilities of Diglycolic Acid Esters in Supercritical Carbon Dioxide

被引：16

作者：

Xie, Yaoping ^{[1
,2
,3
,4
]}

Yang, Hai-Jian ^{[1
,2
]}

Wang, Wei ^{[1
,2
]}

Chen, Rong ^{[3
,4
]}

机构：

[1] S Cent Univ Nationalities, Key Lab Analyt Chem State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci State Ethn Affairs Co, Coll Chem & Mat Sci, Wuhan 430074, Hubei Province, Peoples R China

[2] S Cent Univ Nationalities, Minist Educ, Coll Chem & Mat Sci, Wuhan 430074, Hubei Province, Peoples R China

[3] Wuhan Inst Technol, Sch Chem Engn & Pharm, Minist Educ, Wuhan 430073, Peoples R China

[4] Wuhan Inst Technol, Key Lab Green Chem Proc, Minist Educ, Wuhan 430073, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2009年 / 54卷 / 01期

关键词：

CO2; PRESSURES;

D O I：

10.1021/je800683e

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A series of new CO2-soluble diglycolic acid esters were designed and synthesized, and their structures were confirmed by IR, NMR, and elemental analysis. The solubilities of compounds were measured at temperatures ranging from (313 to 333) K and pressures from (8.5 to 19.3) MPa in supercritical carbon dioxide. All of the newly synthesized esters showed good to high solubility (as high as 1.25 mol % for compound 1) in supercritical CO2 at easily accessible temperatures and pressures. The measured solubility data were correlated using a semiempirical model. Consequently, the calculated results showed satisfactory agreement with the experimental data and differed from the measured values by between (3.18 and 19.58) %.

引用

页码：102 / 107

页数：6

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