PROCESS FOR THE PREPARATION OF PHOSOPHORIC MONOESTER
    1.
    发明公开
    PROCESS FOR THE PREPARATION OF PHOSOPHORIC MONOESTER 失效
    用于生产PHOSPHORIC单酯

    公开(公告)号:EP0796264A1

    公开(公告)日:1997-09-24

    申请号:EP95932189.0

    申请日:1995-09-20

    申请人: Kao Corporation

    IPC分类号: C07F9

    CPC分类号: C07F9/11 C07F9/09

    摘要: An organic hydroxyl compound is reacted with a phosphorylating agent comprising phosphorus pentaoxide and at least one compound selected from the group consisting of water, phosphoric acid and polyphosphoric acid and having a value represented by formula (I) of from 0.5 to 1.0, under such a condition that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.2; or alternatively, an organic hydroxyl compound is reacted with the above phosphorylating agent under such a condition that the ratio as defined by formula (II) has a value in the range of from exceeding 3.2 up to 6.4 and then phosphorus pentaoxide is added to the reaction product in such an amount that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.2 with respect to the total feeds of the starting materials to conduct further reaction. Said process enables the preparation of a phosphoric ester mixture which is excellent in hue and odor, is reduced in the amount of orthophosphoric acid formed as a by-product and contains a phosphoric monoester useful as the component of detergent in an increased amount.