13.
    发明专利
    未知

    公开(公告)号:DE10116817A1

    公开(公告)日:2002-10-17

    申请号:DE10116817

    申请日:2001-04-04

    Applicant: BASF AG

    Abstract: Disclosed is a method for producing organic disulphide by oxidation of the corresponding thiol with sulphur disolved in organic disulphide using an amine as a catalyst in a reaction column (K). The thiol used is a crude thiol flow from catalytic reaction of the corresponding primary alcohol with hydrogen sulphide and the bases of the reaction column (K) are temperable.

    Method of producing alkane sulfonic acid.

    公开(公告)号:ZA200104256B

    公开(公告)日:2002-05-24

    申请号:ZA200104256

    申请日:2001-05-24

    Applicant: BASF AG

    Abstract: The invention relates to a process for the prepartaion of alkanesulfonic acids, comprising the following steps:(a) oxidation of alkylmercaptans and/or dialkyl disulfides and/or dialkyl polysulfides having from three to nine sulfur atoms with nitric acid to form alkanesulfonic acids, water, nitrogen oxides and other byproducts,(b) regeneration of the nitrogen oxides obtained from step (a) with oxygen to give nitric acid and recycling of the nitric acid to step (a),where steps (a) and (b) are carried out in reaction chambers separate from one another.

    METHOD OF PRODUCING ALKANE SULFONIC ACID

    公开(公告)号:PL347973A1

    公开(公告)日:2002-05-06

    申请号:PL34797399

    申请日:1999-11-22

    Applicant: BASF AG

    Abstract: The invention relates to a process for the prepartaion of alkanesulfonic acids, comprising the following steps:(a) oxidation of alkylmercaptans and/or dialkyl disulfides and/or dialkyl polysulfides having from three to nine sulfur atoms with nitric acid to form alkanesulfonic acids, water, nitrogen oxides and other byproducts,(b) regeneration of the nitrogen oxides obtained from step (a) with oxygen to give nitric acid and recycling of the nitric acid to step (a),where steps (a) and (b) are carried out in reaction chambers separate from one another.

    16.
    发明专利
    未知

    公开(公告)号:DE10047163A1

    公开(公告)日:2002-04-11

    申请号:DE10047163

    申请日:2000-09-22

    Applicant: BASF AG

    Abstract: A method for the nitration of aromatic hydrocarbons (I) by liquid-phase reaction with a nitrogen oxide (NO, N2O3, NO2 or N2O4) and an oxygen-containing gas stream in presence of a heterogeneous oxide catalyst, in which the reaction is started in presence of at least 0.1 mol% water (based on I).

    METHOD OF PRODUCING ALKANE SULFONIC ACID

    公开(公告)号:HU0104484A2

    公开(公告)日:2002-03-28

    申请号:HU0104484

    申请日:1999-11-22

    Applicant: BASF AG

    Abstract: The invention relates to a process for the prepartaion of alkanesulfonic acids, comprising the following steps:(a) oxidation of alkylmercaptans and/or dialkyl disulfides and/or dialkyl polysulfides having from three to nine sulfur atoms with nitric acid to form alkanesulfonic acids, water, nitrogen oxides and other byproducts,(b) regeneration of the nitrogen oxides obtained from step (a) with oxygen to give nitric acid and recycling of the nitric acid to step (a),where steps (a) and (b) are carried out in reaction chambers separate from one another.

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