LOWER ALKYL ESTER RECYCLING IN POLYOL FATTY ACID POLYESTER SYNTHESIS
    3.
    发明公开
    LOWER ALKYL ESTER RECYCLING IN POLYOL FATTY ACID POLYESTER SYNTHESIS 失效
    低级烷基RECYCLING IN多元醇脂肪酸聚酯的合成

    公开(公告)号:EP0975647A2

    公开(公告)日:2000-02-02

    申请号:EP98908524.6

    申请日:1998-02-06

    IPC分类号: C07H13/00

    CPC分类号: C07H13/06 C07H3/06 Y02P20/582

    摘要: Process for synthesizing polyol fatty acid polyesters which includes the steps of reacting an excess of lower alkyl ester with polyol to esterify hydroxyl groups thereof and form polyol fatty acid polyester, separating at least a portion of the unreacted lower alkyl ester from the polyol fatty acid polyester, and recycling the separated unreacted lower alkyl ester for further reaction with polyol or partially esterified polyol. The recycled lower alkyl ester is substantially free of lower alkyl ester degradation reaction products, such as carbonyls and free fatty acids.