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    23.
    发明专利
    未知

    公开(公告)号：DE69513114D1

    公开(公告)日：1999-12-09

    申请号：DE69513114

    申请日：1995-01-20

    Applicant: KAO CORP

    Inventor： HATAYAMA YOSHIO ,  INOUE KATSUHISA ,  DANJO HIROSHI ,  SOTOYA KOHSHIRO

    IPC: C07C303/04 ,  C07C303/06 ,  C07C309/42

    Abstract: A process for producing an acyloxybenzenesulfonic acid or a salt thereof by sulfonating an acyloxybenzene (1) with the use of at least one additive selected from among carboxylic acids or esters (2), alkyl phosphates (3), polyphosphoric acids (4), amide and like compounds (6), carbonic ester compounds (7), and hydroxylic compounds (8). The process enables acyloxybenzenesulfonic acids with good hues to be produced industrially in high yields at a high selectivity and a low cost as compared with the conventional processes.

    26.
    发明专利
    未知

    公开(公告)号：DE69208385T2

    公开(公告)日：1996-09-05

    申请号：DE69208385

    申请日：1992-04-14

    Applicant: KAO CORP

    Inventor： ABE HIROSHI ,  TANIGUCHI HIDEKI ,  NISHIMOTO YOSHIFUMI ,  SOTOYA KOHSHIRO

    IPC: B01J29/068 ,  C07C209/16 ,  B01J23/80 ,  B01J23/76 ,  B01J23/84 ,  B01J23/89 ,  C07C211/08

    Abstract: A process for producing an N-alkyl-N-methylamine or an N-alkenyl-N-methylamine in a high yield from a higher alcohol and methylamine comprising the step of reacting a higher alcohol with methylamine in the presence of a catalyst comprising copper and another fourth period transition metal of the Periodic Table, except chromium, or a catalyst comprising copper, another fourth period transition metal of the Periodic Table, except chromium, and an element of the platinum group, at a pressure ranging from atmospheric pressure to 100 atm, at a reaction temperature ranging from 100 to 250 DEG C, with hydrogen gas being introduced into the reaction system while water produced in the reaction is removed from the reaction system and the amount of methylamine in the gaseous mixture which contains no water formed through the reaction and is exhausted from the reaction system is regulated to be from 5 to 50% by volume.

    27.
    发明专利
    未知

    公开(公告)号：DE69208385D1

    公开(公告)日：1996-03-28

    申请号：DE69208385

    申请日：1992-04-14

    Applicant: KAO CORP

    Inventor： ABE HIROSHI ,  TANIGUCHI HIDEKI ,  NISHIMOTO YOSHIFUMI ,  SOTOYA KOHSHIRO

    IPC: B01J29/068 ,  C07C209/16 ,  B01J23/80 ,  B01J23/76 ,  B01J23/84 ,  B01J23/89 ,  C07C211/08

    Abstract: A process for producing an N-alkyl-N-methylamine or an N-alkenyl-N-methylamine in a high yield from a higher alcohol and methylamine comprising the step of reacting a higher alcohol with methylamine in the presence of a catalyst comprising copper and another fourth period transition metal of the Periodic Table, except chromium, or a catalyst comprising copper, another fourth period transition metal of the Periodic Table, except chromium, and an element of the platinum group, at a pressure ranging from atmospheric pressure to 100 atm, at a reaction temperature ranging from 100 to 250 DEG C, with hydrogen gas being introduced into the reaction system while water produced in the reaction is removed from the reaction system and the amount of methylamine in the gaseous mixture which contains no water formed through the reaction and is exhausted from the reaction system is regulated to be from 5 to 50% by volume.

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