Van Ruymbeke


Van Ruymbeke : (1) A process for recovering glycerol from the residual liquor from the kettle soapmaking process. After separating the solid soap, the liquor is heated with basic ferric sulfate, thereby precipitating the residual carboxylic acids as their insoluble ferric salts. After removing these by filtration, the liquor is concentrated by vacuum evaporation and the glycerol distilled out under vacuum. See also: Garrigue. (2) A process for dehydrating 95 percent aqueous ethanol by countercurrent extraction of the vapor with glycerol
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