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    14.
    发明专利
    未知

    公开(公告)号：AT503720T

    公开(公告)日：2011-04-15

    申请号：AT08701458

    申请日：2008-01-14

    Applicant: BASF SE

    Inventor： WOELFERT ANDREAS ,  JACHOW HARALD ,  DRIESS HEINZ

    IPC: C01B17/16 ,  B01J8/00 ,  B01J8/06 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24

    Abstract: The invention relates to a reactor (1) and a process for continuously preparing H2S by converting a reactant mixture which comprises essentially gaseous sulfur and hydrogen over a catalyst, comprising a sulfur melt (9) at least in a lower subregion (8) of the reactor (1), into which gaseous hydrogen is introduced. The catalyst is arranged in at least one U-shaped tube (21) which is partly in contact with the sulfur melt (9), the at least one U-shaped tube (21) having at least one entry orifice (23) on a limb (26) above the sulfur melt (9), through which the reactant mixture can enter the U-shaped tube (21) from a reactant region (10) of the reactor (1), having a flow path within the at least one U-shaped tube, along which the reactant mixture can be converted in a reaction region comprising the catalyst (22), and having at least one exit orifice (24) in another limb (27) through which a product can exit into a product region (7).

    METHOD FOR COMPRESSING GASES CONTAINING HYDROGEN SULFIDE
    16.
    发明专利
    METHOD FOR COMPRESSING GASES CONTAINING HYDROGEN SULFIDE 未知

    公开(公告)号：CA2747338A1

    公开(公告)日：2010-07-01

    申请号：CA2747338

    申请日：2009-12-22

    Applicant: BASF SE

    Inventor： WOELFERT ANDREAS ,  GRZONKOWSKI FRANK ,  JACHOW HARALD ,  RENZ GUENTER

    IPC: C01B17/16 ,  C07C319/02

    Abstract: The invention relates to a method for compressing a gas stream containing hydrogen sulfide, comprising (i) compressing the gas stream containing the hydrogen sulfide in a compressor, (ii) flushing the compressor with a mixture containing dialkyl polysulfides, dialkyl disulfides and at least one amine; to a method for producing sulfur compounds selected from the group consisting of alkyl mercaptans, dialkyl disulfides and alkane sulfonic acids, comprising reacting gas streams containing hydrogen sulfide, wherein the gas streams containing hydrogen sulfide are compressed according to the method comprising the steps i) and ii); and to the use of a mixture containing dialkyl polysulfides, dialkyl disulfides and at least one amine for removing sulfur deposits occurring during the compression of a gas stream containing hydrogen sulfide.

    18.
    发明专利
    未知

    公开(公告)号：AT444118T

    公开(公告)日：2009-10-15

    申请号：AT04713043

    申请日：2004-02-20

    Applicant: BASF SE

    Inventor： BRODHAGEN ANDREAS ,  SOHN MARTIN ,  NEVEJANS FILIP ,  STROEFER ECKHARD ,  WOELFERT ANDREAS ,  OEHLENSCHLAEGER STEFFEN

    IPC: B01J19/24 ,  C07C263/10 ,  C07C265/14

    Abstract: Production of polyisocyanates comprises mixing an amine with phosgene, reacting the amine with the phosgene in a tubular reactor, and passing the reactor effluent to a distillation column. Independent claims are also included for: (1) tubular reactor consisting of one or more horizontal and/or vertical segments connected together by sections whose diameter is smaller than that of the narrowest horizontal or vertical segment; (2) use of the above reactor for carrying out gas-liquid reactions; and (3) use of the above reactor for producing isocyanates by reacting primary amines with phosgene.

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