Solubility of bio-sourced feedstocks in 'green' solvents

被引:51
作者
Payne, Samantha M. [1 ]
Kerton, Francesca M. [1 ]
机构
[1] Mem Univ Newfoundland, Dept Chem, Ctr Green Chem & Catalysis, St John, NF A1B 3X7, Canada
基金
加拿大创新基金会; 加拿大自然科学与工程研究理事会;
关键词
IONIC LIQUIDS; ROOM-TEMPERATURE; CONVERSION; EFFICIENT; WATER; CELLULOSE; FRUCTOSE; HYDROGENATION; DISSOLUTION; CHEMISTRY;
D O I
10.1039/c0gc00205d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A group of 14 different bio-sourced, renewable feedstocks (homoserine, 1; glutamic acid, 2; aspartic acid, 3; 2,5-furandicarboxylic acid, 4; fumaric acid, 5; oxalacetic acid, 6; tartaric acid, 7; malic acid, 8; succinic acid, 9; levulinic acid, 10; gamma-hydroxybutyrolactone, 11; xylitol, 12; mannitol, 13; sorbitol, 14) have been examined for their solubility/miscibility in a variety of 'green' solvents, including water, supercritical carbon dioxide (scCO(2)), and ionic liquids. Two other bio-based compounds 5-hydroxymethylfurfural, 15, and D-xylose, 16, were studied in selected solvents. Trends in solubility have been assessed so that these data may be extrapolated to help predict solubilities of other related compounds. For example, 10, 11 and 15 all demonstrated appreciable solubility in scCO(2), as they possess weak intermolecular interactions. The dicarboxylic acids studied (4-9) all proved soluble in modified scCO(2) (by use of MeOH as a cosolvent). While the polyols (12-14) and 1 were insoluble in scCO(2) but water of various pHs and ionic liquids proved adept at their dissolution. Some of the amino acids studied (2 and 3) were only soluble in water with an adjustment of pH.
引用
收藏
页码:1648 / 1653
页数:6
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