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    Production of mixtures of cyclic ethers
    22.
    发明专利
    Production of mixtures of cyclic ethers 未知

    公开(公告)号：GB1095779A

    公开(公告)日：1967-12-20

    申请号：GB5133066

    申请日：1966-11-16

    Applicant: BASF AG

    Inventor： ADAM KARL ,  HAARER ERICH

    IPC: C07D307/06 ,  C07D309/04 ,  C07D313/04

    Abstract: A mixture of cyclic ethers is obtained by dehydration of hexanediol-(1,6) at elevated temperatures in the presence of solid dehydration catalysts, a mixture of hexanediol and water containing 1-20% by weight based on the mixture of water being used. The catalyst should preferably be non-alkaline, some examples are aluminium phosphate, aluminium oxide/chromate, aluminium oxide/boric acid and aluminium phosphate/copper chromite. Temperatures in the range 160-400 DEG C. are normally used. The cyclic ethers obtained in the mixture are hexamethylene oxide and a -methyltetrahydropyran.

    Production of alcohols by catalytic hydrogenation of carboxylic acids
    23.
    发明专利
    Production of alcohols by catalytic hydrogenation of carboxylic acids 未知

    公开(公告)号：GB1094727A

    公开(公告)日：1967-12-13

    申请号：GB1104065

    申请日：1965-03-16

    Applicant: BASF AG

    Inventor： ADAM KARL ,  HAARER ERICH ,  DORFNER KONRAD

    IPC: B01J23/18 ,  B01J23/75 ,  B01J23/84 ,  B01J27/18 ,  C07C29/149 ,  C07C29/17

    Abstract: Alcohols are prepared from carboxylic acids by catalytic hydrogenation at an elevated temperature in the presence of a cobalt catalyst which contains copper, manganese and/or chromium. Inorganic acids which can form polyacids and/or an alkali metal, alkaline earth metal or earth metal salts thereof, e.g. sulphuric, boric, phosphoric, molybdic, vanadic and tungstic acids may also be present. The catalysts may be supported, e.g. on silicic acid, bauxite, fuller's earth or aluminium oxide, or unsupported. Examples describe the hydrogenation of propionic, butyric, lauric, oleic, suberic, azelaic, and sebacic acids, decane dicarboxylic acid-(1-12) benzoic, hexahydrobenzoic, phenylacetic, and salicylic acids and a mixture containing succinic glutaric, adipic, e -hydroxycaproic, butyric, valeric and caproic acids obtained as by-product in the catalytic oxidation of cyclohexane with air.

    Production of xylylene diamines
    27.
    发明专利
    Production of xylylene diamines 未知

    公开(公告)号：GB852972A

    公开(公告)日：1960-11-02

    申请号：GB118159

    申请日：1959-04-02

    Applicant: BASF AG

    Inventor： ADAM KARL

    IPC: C07C209/48

    Abstract: Xylylene diamines are prepared by catalytic hydrogenation under increased pressure of a phthalonitrile in dissolved form in the presence of a cobalt catalyst which contains, in addition to chromium and/or manganese, 0,05 to 5% based on the total weight of the catalyst, of a pyro or poly form of phosphoric, sulphuric or boric acid. The reduction is preferably carried out at 50-85 DEG C. and 100-500 atmospheres using a supported catalyst containing 10-20% Co, 0,03-5% Cr and/or 0,1-2% Mn and 0,3-1,5% of the pyro or poly acid. The solvent used may be ammonia or the corresponding xylylene diamine or preferably a mixture of both containing 55% ammonia which may be obtained as a discharge from the hydrogenation. In examples : (1) p-phthalonitrile in liquid ammonia is reduced in the presence of a Co, Cr and polyphosphoric acid on silica string catalyst, (2) and (4) m-phthalonitrile in liquid ammonia and m-xylylene diamine is reduced in the presence of a Co, Mn and polyphosphoric acid on silica string catalyst, and (3) m-phthalonitrile in liquid ammonia and m-xylylene diamine is reduced in the presence of a Co, Mn and polyphosphoric acid on Al2O3 catalyst.ALSO:A catalyst, used in hydrogenating phthalonitrile to xylylene diamine, comprises cobalt together with chromium and/or manganese and from 0.05 to 5%, based on the total weight of the catalyst, of a pyro or poly form of phosphoric, sulphuric or boric acid. The catalyst preferably contains 10-20% wt. of cobalt, 0.03 to 5% wt. chromium and/or 0.1 to 2% wt. manganese and 0.3 to 1.5% wt. of the pyro or poly acid, and may be unsupported or supported, e.g. on Fuller's earth, silica strings, silica gel, aluminium oxide or mangesium silicate. The catalyst may be prepared from water-soluble salts of the metal and the acid added and converted to the pyro or poly form by heating; alternatively the metal salts may be heated alone, the mass cooled, the acid then added and the mass reheated to convert the acid to the pyro or poly form.

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