63.
    发明专利
    未知

    公开(公告)号:AT471307T

    公开(公告)日:2010-07-15

    申请号:AT07765652

    申请日:2007-06-27

    Applicant: BASF SE

    Abstract: The present invention relates to a process for preparing a cyclic ketone having from 7 to 16 carbon atoms, which comprises at least the steps (a) oxidation of a composition (I) comprising at least one cyclic alkene which has from 7 to 16 carbon atoms and at least one C—C double bond by means of dinitrogen monoxide to give a composition (A), (b) treatment of the composition (A) with at least one base to give a composition (B), (c) hydrogenation of the composition (B) in the presence of at least one catalyst to give a composition (C), (d) purification of the composition (C), comprising at least the steps (di) thermal treatment of the composition (C) with at least one acid or at least one catalyst comprising at least one transition metal, (dii) further purification by a method selected from the group consisting of distillation, extraction and crystallization.

    64.
    发明专利
    未知

    公开(公告)号:DE50212185D1

    公开(公告)日:2008-06-12

    申请号:DE50212185

    申请日:2002-06-06

    Applicant: BASF SE

    Abstract: The invention relates to a process for the production of isocyanates by reaction of primary amines with phosgene, in which isocyanate is used as solvent, wherein some or all of isocyanate used as solvent is added to the reaction mixture only after the amine and phosgene have been physically combined.

    65.
    发明专利
    未知

    公开(公告)号:AT393761T

    公开(公告)日:2008-05-15

    申请号:AT02745367

    申请日:2002-06-06

    Applicant: BASF SE

    Abstract: The invention relates to a process for the production of isocyanates by reaction of primary amines with phosgene, in which isocyanate is used as solvent, wherein some or all of isocyanate used as solvent is added to the reaction mixture only after the amine and phosgene have been physically combined.

    66.
    发明专利
    未知

    公开(公告)号:DE502005003442D1

    公开(公告)日:2008-05-08

    申请号:DE502005003442

    申请日:2005-12-14

    Applicant: BASF SE

    Abstract: Preparing sulfur-containing compounds comprises reacting a mixed gas stream comprising hydrogen sulfide, optionally with oxygen, with linear or branched 1-30C olefins and carrying out the reaction in the presence of water and carbon dioxide at a pressure of 2-325 bar. Preparing sulfur-containing compounds of formula R 1>-Q-R 2> comprises reacting a mixed gas stream comprising hydrogen sulfide, optionally with oxygen, with linear or branched 1-30C olefins and carrying out the reaction in the presence of water and carbon dioxide at a pressure of 2-325 bar. Q : -S- or -S-S-; R 1>, R 2>H or optionally saturated, linear or branched 1-30C alkyl. R 1> and R 2> are not simultaneously H.

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