HYDROXYLAMINE DERIVATIVES
    36.
    发明专利

    公开(公告)号:CA2001988A1

    公开(公告)日:1990-05-11

    申请号:CA2001988

    申请日:1989-11-01

    Applicant: BASF AG

    Abstract: Hydroxylamine derivatives have the general formula I Aryl-A-O-B I where Aryl is an unsubstituted or substituted, mononuclear or binuclear, isocyclic radical; A is a 1,4-butenylene group of the general formulae IIa or IIb IIa IIb where R1, R2, R3, R4 and R5 are each hydrogen, halogen, C1-C6-alkyl or C1-C6-alkenyl; B is NH2 or a dicarboximide group of the general formula III III where Z is unsubstituted or substituted phenylene, naphthylene, pyridinylene, cyclopentylene, cyclohexylene, cyclohexenylene, C2-C4-alkenylene or C2-C4-alkylene. The dicarboximides are intermediates for the compounds wherein B is NH2. The latter are used in synthesizing herbicidal compounds.

    METHOD FOR REMOVING ACID GAS COMPONENTS FROM GASES

    公开(公告)号:CA2336043C

    公开(公告)日:2009-05-05

    申请号:CA2336043

    申请日:1999-06-23

    Applicant: BASF AG

    Abstract: The invention relates to a method for removing acid gas components from gase s, the components being from the group consisting of CO2, H2S, COS, CS2 and mercaptans, wherein a crude gas rich in acid gas components is brought into contact with an absorbing agent in an absorption step, whereby a pure gas poor in acid gas components and an absorbing agent charged with acid gas components is obtained, wherein a mixture is used as absorbing agent, containing: a) 0.1 to 50 % by weight of one or several unsubstituted and/or once or several times OH, C1-C3-alkyl and/or C1-C3-hydroxyalkyl carbon substituted mono- or bicyclic nitrogen heterocycles with 5 to 14 ring atoms and 1 or 2 heterocyclically bonded nitrogen atoms per ring as constituents A ; b) 1 to 60 % by weight of a mono or polyvalent alcohol as constituent B; c) 0 to 60 % by weight of an aliphatic aminoalcohol as constituent C; d) 0 to 98.9 % by weight of water as constituent D; e) 0 to 35 % by weight of K2CO3 as constituent E, wherein the sum of constituents A, B, C, D and E equals 100 % by weight.

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