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    PROCESS FOR PRODUCING AMINOARYL-BETA-SULPHATOETHYLSULPHONE COMPOUNDS
    41.
    发明专利
    PROCESS FOR PRODUCING AMINOARYL-BETA-SULPHATOETHYLSULPHONE COMPOUNDS 未知

    公开(公告)号：AU612758B2

    公开(公告)日：1991-07-18

    申请号：AU2791889

    申请日：1988-11-29

    Applicant: HOECHST AG

    Inventor： RUPP WALTER

    IPC: C07B45/02 ,  C07C303/24 ,  C07C305/00 ,  C07C315/04 ,  C07C317/18 ,  C07C147/12 ,  C07C141/00 ,  C07C139/10

    Abstract: Aminoaryl beta -sulfatoethyl sulfone compounds, such as, for example 4-( beta -sulfatoethylsulfonyl)-aniline, can be prepared in a quick and easy manner from their corresponding beta -hydroxyethyl sulfone compounds by sulfation by spraying a solution or suspension or paste of this aminoaryl beta -hydroxyethyl sulfone compound or the acylamino compound thereof in sulfuric acid or aqueous sulfuric acid into a hot inert gas stream of a convection dryer. In this procedure, the drying, esterification reaction and the hydrolysis of any acylamino group present takes place synchronously. The sulfato compound is preferably obtained in the form of granules.

    42.
    发明专利
    未知

    公开(公告)号：DK141190D0

    公开(公告)日：1990-06-08

    申请号：DK141190

    申请日：1990-06-08

    Applicant: HOECHST AG

    Inventor： RUPP WALTER

    IPC: C07B45/02 ,  C07C303/24 ,  C07C305/00 ,  C07C315/04 ,  C07C317/18 ,  C07C317/36

    Abstract: Aminoaryl beta -sulfatoethyl sulfone compounds, such as, for example 4-( beta -sulfatoethylsulfonyl)-aniline, can be prepared in a quick and easy manner from their corresponding beta -hydroxyethyl sulfone compounds by sulfation by spraying a solution or suspension or paste of this aminoaryl beta -hydroxyethyl sulfone compound or the acylamino compound thereof in sulfuric acid or aqueous sulfuric acid into a hot inert gas stream of a convection dryer. In this procedure, the drying, esterification reaction and the hydrolysis of any acylamino group present takes place synchronously. The sulfato compound is preferably obtained in the form of granules.

    43.
    发明专利
    未知

    公开(公告)号：DK141190A

    公开(公告)日：1990-06-08

    申请号：DK141190

    申请日：1990-06-08

    Applicant: HOECHST AG

    Inventor： RUPP WALTER

    IPC: C07B45/02 ,  C07C303/24 ,  C07C305/00 ,  C07C315/04 ,  C07C317/18 ,  C07C317/36

    Abstract: Aminoaryl beta -sulfatoethyl sulfone compounds, such as, for example 4-( beta -sulfatoethylsulfonyl)-aniline, can be prepared in a quick and easy manner from their corresponding beta -hydroxyethyl sulfone compounds by sulfation by spraying a solution or suspension or paste of this aminoaryl beta -hydroxyethyl sulfone compound or the acylamino compound thereof in sulfuric acid or aqueous sulfuric acid into a hot inert gas stream of a convection dryer. In this procedure, the drying, esterification reaction and the hydrolysis of any acylamino group present takes place synchronously. The sulfato compound is preferably obtained in the form of granules.

    45.
    发明专利
    未知

    公开(公告)号：BR8705716A

    公开(公告)日：1988-05-31

    申请号：BR8705716

    申请日：1987-10-27

    Applicant: HOECHST AG

    Inventor： SCHMIDT MANFRED ,  RUPP WALTER ,  SCHNEIDER GERHART ,  KOHN EVA M

    IPC: C07C309/04 ,  C07C309/09 ,  C09K8/584 ,  E21B43/22 ,  C07C143/34

    Abstract: Styrylaryloxy ether sulfonates of the formula in which either R1 denotes styryl and simultaneously R2 and R3 are identical or different and denote hydrogen or styryl, or R1 and R2 are nonidentical and each denote methyl or styryl and simultaneously R3 denotes hydrogen or styryl, x denotes a number from 2 to 20, and M denotes an ammonium or alkali metal cation. These compounds are suitable as surfactant auxiliaries in oil recovery.

    46.
    发明专利
    未知

    公开(公告)号：DK510286A

    公开(公告)日：1987-04-27

    申请号：DK510286

    申请日：1986-10-24

    Applicant: HOECHST AG

    Inventor： GRABLEY FRITZ-FEO ,  REINHARDT GERD ,  BAEDER GEORG ,  RUPP WALTER

    IPC: C07C309/42 ,  C07C20060101 ,  C07C67/00 ,  C07C301/00 ,  C07C303/06 ,  C07C303/32 ,  C07C309/28 ,  C11C3/00 ,  C07C143/38

    Abstract: A process for the preparation of acyloxybenzenesulfonic acids and salts thereof, of the formula in which R is C1-C17-alkyl or C2-C17-alkenyl and M is an alkali or alkaline earth metal, ammonium or hydrogen, including the stages of (a) sulfonation of phenol, if appropriate (b) thermal treatment of the sulfonated phenol, (c) esterification of the sulfonated phenol and if appropriate (d) neutralization of the ester, wherein the sulfonation of the phenol is carried out with sulfuric acid or oleum and the water of reaction is removed during or after stage (b) by distillation and/or by reaction with a dehydrating agent.

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