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    MANUFACTURE OF POLYALKYLENEPOLYAMINES
    12.
    发明专利
    MANUFACTURE OF POLYALKYLENEPOLYAMINES 未知

    公开(公告)号：AU521750B2

    公开(公告)日：1982-04-29

    申请号：AU4045178

    申请日：1978-10-05

    Applicant: BASF AG

    Inventor： MUELLER HANS ,  WULZ KLAUS ,  BEYER KARL-HEINZ ,  STREIT WERNER

    IPC: C08G73/00 ,  C02F1/54 ,  C08G59/50 ,  C08G73/02 ,  C10M169/00

    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.

    Production of sodium bicarbonate
    13.
    发明专利
    Production of sodium bicarbonate 未知

    公开(公告)号：GB1064558A

    公开(公告)日：1967-04-05

    申请号：GB1000966

    申请日：1966-03-08

    Applicant: BASF AG

    Inventor： SCHMITT KARL OTTO ,  HANSEN GUENTER ,  MUELLER HANS

    IPC: C01D7/08 ,  C01D7/18

    Abstract: A process for the production of NaHCO3 and NH4Cl by reaction of NH3 and CO2 in a mother liquor containing NaCl comprises adding all the required NH3 to the liquor but only sufficient CO2 to saturate the liquor, at not more than 60 DEG C., with NaHCO3; introducing the liquor to a second stage at not more than 35 DEG C. and adding the rest of the CO2, precipitating and separating the NaHCO3 without cooling, dissolving fresh NaCl in the liquor, cooling to precipitate NH4Cl, separating and recycling the liquor to the first stage. The process of the invention reduces encrustation of NaHCO3 on the apparatus.

    MANUFACTURE OF POLYALKYLENEPOLYAMINES
    19.
    发明专利
    MANUFACTURE OF POLYALKYLENEPOLYAMINES 未知

    公开(公告)号：AU4045178A

    公开(公告)日：1980-04-17

    申请号：AU4045178

    申请日：1978-10-05

    Applicant: BASF AG

    Inventor： MUELLER HANS ,  WULZ KLAUS ,  BEYER KARL-HEINZ ,  STREIT WERNER

    IPC: C08G73/00 ,  C02F1/54 ,  C08G59/50 ,  C08G73/02 ,  C10M169/00

    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.

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