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    PROCESS FOR THE SEPARATION OF NONAQUEOUS SOLUTIONS OF HYDROGEN PEROXIDE
    43.
    发明专利
    PROCESS FOR THE SEPARATION OF NONAQUEOUS SOLUTIONS OF HYDROGEN PEROXIDE 未知

    公开(公告)号：YU97171A

    公开(公告)日：1979-07-10

    申请号：YU97171

    申请日：1971-04-19

    Applicant: DEGUSSA

    Inventor： GERD SCHREYER ,  SCHREYER GERD ,  FERDINAND THEISSEN ,  THEISSEN FERDINAND ,  OTTO WEIBERG ,  WEIBERG OTTO ,  WOLFGANG WEIGERT ,  WEIGERT WOLFGANG

    IPC: C01B15/022 ,  C01B15/017 ,  C01B15/032 ,  C01B15/025

    Abstract: 1343052 Non-aqueous hydrogen peroxide solutions DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT 21 May 1971 [23 May 1970] 16188/71 Heading C1A [Also in Division B1] A non-aqueous solution of hydrogen peroxide is obtained by passing a working solution containing hydrogen peroxide obtained by the anthraquinone process through a film forming evaporator in the presence of the vapour of at least one organic solvent for hydrogen peroxide which is chemically stable under the process conditions and which boils at 30 to 180‹ C. at normal pressure, and thereafter condensing the vapour containing H 2 O 2 , produced in the evaporator by desorption of H 2 O 2 from the working solution, either by direct evaporation cooling with the liquid organic solvent or solvents used, preferably in supercooled form, or by a heat exchanger. The working solution may be preheated-before being passed to the evaporator and during evaporation, the organic solvent/s vapours may be guided in parallel current with or in counter current to the working solution. Alternatively, the vapour of the organic solvent/s may be produced in situ from the working solution in the evaporator. The desorption of H 2 O 2 is preferably carried out under a reduced pressure of 5 to 60 Torr. and the organic solvent/s used in the desorption are preferably carboxylic acids, esters, alcohols, ketones and ethers or mixtures of these or combinations with hydrocarbons.

    PROCESS FOR PRODUCING PERCARBOXYLIC ACIDS
    48.
    发明专利
    PROCESS FOR PRODUCING PERCARBOXYLIC ACIDS 未知

    公开(公告)号：CA963020A

    公开(公告)日：1975-02-18

    申请号：CA142599

    申请日：1972-05-19

    Applicant: DEGUSSA

    Inventor： HOFFMANN PETER ,  SCHREYER GERD ,  WEIBERG OTTO ,  WEIGERT WOLFGANG

    IPC: C07C407/00 ,  C07C409/24 ,  C07C409/26

    Abstract: 1382293 Percarboxylic acids DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 9 May 1972 [21 May 1971] 21581/72 Heading C2C Percarboxylic acids are obtained by reacting the corresponding carboxylic acids or esters thereof with C 1-4 aliphatic alcohols, in the gas phase with hydrogen peroxide in the presence of solid acid catalysts. The catalyst may be applied to a support, such as alumina. Specified acid catalysts are ammonium sulphate, sodium hydrogen sulphate, barium nitrate, aluminium phosphate, aluminium sulphate and boron phosphate.

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