Accession Number : ADD011782

Title :   Recovery of Alcohol From a Fermentation Source by Separation Rather Than Distillation

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Sayles,D C

Report Date : 02 Apr 1985

Pagination or Media Count : 5

Abstract : Ethanol is recovered from fermentation products by a countercurrent extraction process which employs diethyl ether as the extraction process which employs diethyl ether as the extraction solvent to form a diethyl ether-ethanol mixture. The ethanol is salted out by adding calcium chloride to the mixture, and the diethyl ether layer is separated and recycled. The calcium chloride in ethanol solution is removed by adding sodium carbonate to form the solids calcium carbonate and sodium chloride which are removed by filtration. The ethanol is recovered as the filtrate. (Author)

Descriptors :   *PATENTS, *ETHANOLS, *SEPARATION, ALCOHOLS, RECOVERY, EXTRACTION, FERMENTATION, ETHYL RADICALS, ETHERS, SOLVENTS, CALCIUM COMPOUNDS, CHLORIDES, SODIUM CARBONATES, CARBONATES, SODIUM CHLORIDE, FILTRATION

Subject Categories : Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE