31.
    发明专利
    未知

    公开(公告)号:AT396964T

    公开(公告)日:2008-06-15

    申请号:AT05817997

    申请日:2005-11-24

    Applicant: BASF SE

    Abstract: A process for preparing phthaloyl chloride by reacting phthalic anhydride with a chlorinating agent (I) selected from the group of thionyl chloride and phosgene in the presence of a catalyst at a temperature of from 80 to 200° C. and a pressure of from 0.01 to 10 MPa abs, in which the catalyst (II) used is triphenylphosphine, triphenylphosphine oxide or a mixture thereof.

    38.
    发明专利
    未知

    公开(公告)号:AT452874T

    公开(公告)日:2010-01-15

    申请号:AT02785232

    申请日:2002-10-17

    Applicant: BASF SE

    Abstract: In a process for preparing isocyanates by reacting the corresponding primary amines with phosgene in an inert solvent, use is made of from 0.01 to 50 mol % of a sulfoxide, a sulfone or a mixture thereof, based on the total amount of primary amine and isocyanate formed in the reaction solution.

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