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    PROCESS FOR THE CONTINUOUS PREPARATION OF VINYL ACETATE
    22.
    发明专利
    PROCESS FOR THE CONTINUOUS PREPARATION OF VINYL ACETATE 未知

    公开(公告)号：YU31605B

    公开(公告)日：1973-08-31

    申请号：YU218867

    申请日：1967-11-11

    Applicant: BAYER AG ,  HOECHST AG

    Inventor： KROENIG W ,  SENNEWALD K ,  ROSCHER G ,  SCHWERDTEL W

    IPC: B01J21/00 ,  B01J21/08 ,  B01J23/00 ,  B01J23/52 ,  B01J23/58 ,  B01J31/00 ,  B01J31/04 ,  B01J31/30 ,  C07B61/00 ,  C07C67/05 ,  C07C67/055 ,  C07C69/15

    Abstract: 1,211,096. Vinyl acetate. FARBENFABRIKEN BAYER A.G. and FARBWERKE HOECHST A.G. 13 Nov., 1967 [12 Nov., 1966; 27 Dec., 1966; 2 March, 1967], No. 51544/67. Heading C2C. Vinyl acetate is prepared by reacting ethylene with acetic acid and oxygen in the gaseous phase at an elevated temperature in the presence of a catalyst containing palladium metal and one or more alkali metal salts, e.g. acetates or compounds which can form alkali metal acetates under the reaction conditions. The process is continuous and a small quantity of one or more alkali metal salts is added continuously or intermittently to one or more of the reactants so that the composition of the palladium carrier catalyst (i.e. noble metal, alkali metal acetate and carrier) is kept constant and optimal. The addition of the alkali metal compound preferably in the form of a solution, to the reactant or reactants may be accomplished by passing the latter partly or entirely in the gaseous form through a solution of alkali metal compound or through layers of solid bodies impregnated with alkali metal compounds.

    24.
    发明专利
    未知

    公开(公告)号：SE354467B

    公开(公告)日：1973-03-12

    申请号：SE1545667

    申请日：1967-11-10

    Applicant: BAYER AG ,  HOECHST AG

    Inventor： KROENIG W ,  ROSCHER G ,  SCHWERDTEL W ,  SENNEWALD K

    IPC: B01J21/00 ,  B01J21/08 ,  B01J23/00 ,  B01J23/52 ,  B01J23/58 ,  B01J31/00 ,  B01J31/04 ,  B01J31/30 ,  C07B61/00 ,  C07C67/05 ,  C07C67/055 ,  C07C69/15 ,  C07C33/02 ,  C07C69/14

    Abstract: 1,211,096. Vinyl acetate. FARBENFABRIKEN BAYER A.G. and FARBWERKE HOECHST A.G. 13 Nov., 1967 [12 Nov., 1966; 27 Dec., 1966; 2 March, 1967], No. 51544/67. Heading C2C. Vinyl acetate is prepared by reacting ethylene with acetic acid and oxygen in the gaseous phase at an elevated temperature in the presence of a catalyst containing palladium metal and one or more alkali metal salts, e.g. acetates or compounds which can form alkali metal acetates under the reaction conditions. The process is continuous and a small quantity of one or more alkali metal salts is added continuously or intermittently to one or more of the reactants so that the composition of the palladium carrier catalyst (i.e. noble metal, alkali metal acetate and carrier) is kept constant and optimal. The addition of the alkali metal compound preferably in the form of a solution, to the reactant or reactants may be accomplished by passing the latter partly or entirely in the gaseous form through a solution of alkali metal compound or through layers of solid bodies impregnated with alkali metal compounds.

    25.
    发明专利
    未知

    公开(公告)号：DK122657B

    公开(公告)日：1972-03-27

    申请号：DK556967

    申请日：1967-11-08

    Applicant: BAYER AG ,  HOECHST AG

    Inventor： SCHWERDTEL W ,  SENNEWALD K ,  KROENIG W ,  ROSCHER G

    IPC: B01J21/00 ,  B01J21/08 ,  B01J23/00 ,  B01J23/52 ,  B01J23/58 ,  B01J31/00 ,  B01J31/04 ,  B01J31/30 ,  C07B61/00 ,  C07C67/05 ,  C07C67/055 ,  C07C69/15 ,  C07C67/04

    Abstract: 1,211,096. Vinyl acetate. FARBENFABRIKEN BAYER A.G. and FARBWERKE HOECHST A.G. 13 Nov., 1967 [12 Nov., 1966; 27 Dec., 1966; 2 March, 1967], No. 51544/67. Heading C2C. Vinyl acetate is prepared by reacting ethylene with acetic acid and oxygen in the gaseous phase at an elevated temperature in the presence of a catalyst containing palladium metal and one or more alkali metal salts, e.g. acetates or compounds which can form alkali metal acetates under the reaction conditions. The process is continuous and a small quantity of one or more alkali metal salts is added continuously or intermittently to one or more of the reactants so that the composition of the palladium carrier catalyst (i.e. noble metal, alkali metal acetate and carrier) is kept constant and optimal. The addition of the alkali metal compound preferably in the form of a solution, to the reactant or reactants may be accomplished by passing the latter partly or entirely in the gaseous form through a solution of alkali metal compound or through layers of solid bodies impregnated with alkali metal compounds.

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