发明名称 Methods for the preparation of propylene glycol fatty acid esters
摘要 A process of producing a light-colored, high-monoester mixture from a polyol and an oil is provided wherein the process eliminates the use of organic solvents, multiple water washings and/or molecular distillation. The reactants, a polyol and an oil, described herein, condense in the presence of a catalyst, described herein, at a temperature range from about 180° C. to about 280° C. under an inert atmosphere or the vapor pressure of the polyol with a pressure of about 0 to about 500 psig to yield a monoester mixture possessing a desirable monoester composition and color. The present process yields a final product similar to that of processes which require the use of solvents, multiple water washings and/or molecular distillation.
申请公布号 US6723863(B2) 申请公布日期 2004.04.20
申请号 US20020213434 申请日期 2002.08.07
申请人 ARCHER-DANIELS-MIDLAND COMPANY 发明人 LEE INMOK;POPPE GEORGE
分类号 C07C67/03;C11C3/00;C11C3/10;(IPC1-7):C11C1/00 主分类号 C07C67/03
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