04877530 is referenced by 105 patents and cites 4 patents.

Disclosed are a fluid extractant, and a process and apparatus for using the extractant to separate an organic liquid from an aqueous mixture. The extractant comprises a first fluid solvent which is a gas in its near-critical or supercritical state and a cosolvent. A preferred first fluid solvent is near-critical liquid carbon dioxide. Preferred cosolvents are 2-ethyl hexanol for ethanol extraction, and hexanoic acid for acetic acid extraction. Organic compounds such as monohydric alcohols, monoacids, ketones, ethers, aldehydes and esters can be recovered from dilute aqueous solutions more economically than possible by prior art processes of distillation.

Title
Liquid CO.sub.2 /cosolvent extraction
Application Number
603563
Publication Number
4877530
Application Date
February 29, 1988
Publication Date
October 31, 1989
Inventor
John M Moses
Dedham
MA, US
Agent
Schiller Pandiscio & Kusmer
Assignee
CF Systems Corporation
MA, US
IPC
B01D 11/04
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