PROCESS FOR THE PRODUCTION OF POLYALKYLENE POLYAMINES

    公开(公告)号:DE2861116D1

    公开(公告)日:1981-12-10

    申请号:DE2861116

    申请日:1978-09-28

    Applicant: BASF AG

    Abstract: A process for the manufacture of polyalkylenepolyamines by reacting a primary or secondary amine with a compound of the formula (I) where X is -Cl, -Br, or -OSO3H and R1 and R2 are H or saturated alkyl of 1 to 4 carbon atoms, and with at least the stoichiometric amount, based on the compound of the formula I, of an aqueous solution, of from 15 to 45 percent strength, of an alkali metal hydroxide or alkaline earth metal hydroxide, at from 60 DEG to 200 DEG C., cooling the reaction mixture to a temperature at which 2 aqueous phases form, and separating off the upper phase, containing polyalkylenepolyamnines. The rate of reaction can be increased by adding catalytic amounts of compounds which initiate the polymerization of alkyleneimines.

    5.
    发明专利
    未知

    公开(公告)号:DE3508206A1

    公开(公告)日:1986-09-11

    申请号:DE3508206

    申请日:1985-03-08

    Applicant: BASF AG

    Abstract: A bipolar membrane is produced by fastening an anion exchange membrane to a cation exchange membrane with the aid of an ion-permeable adhesive, by a process in which an aqueous solution of a polyvinylamine is used as the adhesive, and the bipolar membrane, which consists of two ion exchange membranes and the film-like adhesive, is subjected to electrodialysis.

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