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    Aluminium alkoxy and aryloxy hydrides, their complex salts with alkali hydrides and the production of the same
    41.
    发明专利
    Aluminium alkoxy and aryloxy hydrides, their complex salts with alkali hydrides and the production of the same 未知

    公开(公告)号：GB878136A

    公开(公告)日：1961-09-27

    申请号：GB361360

    申请日：1960-02-02

    Applicant: BASF AG

    Inventor： HAMPRECHT GUENTHER ,  SCHWARZMANN MATTHIAS ,  TITTEL MANFRED

    IPC: C07F5/06

    Abstract: The invention comprises aluminium alkoxy or aluminium aryloxy hydrides or their salts with an alkali metal hydride and having the formula Al(OR)nH3-n, Me(Al(OR)nH4-n) or Al2(OR)3H3 in which R is an alkyl group, a phenyl group or an alkyl-substituted phenyl group, Me is an alkali metal and n is equal to 1 or 2. They may be produced by reacting the corresponding aluminium alkoxy or aryloxy halide with an alkali metal halide in an inert solvent. Suitable solvents are, for example, ethers, hydrocarbons or tertiary amines. The reaction may be carried out at temperatures in the range 0-130 DEG C. and at atmospheric or superatmospheric pressure. Before the reaction starts there is preferably added to the reaction mixture a small amount of an aluminium alkyl, aluminium phenyl, aluminium alkoxy or aluminium phenyloxy hydride or a small amount of the product.

    Improvements in the production of organo-aluminium compounds
    42.
    发明专利
    Improvements in the production of organo-aluminium compounds 未知

    公开(公告)号：GB858498A

    公开(公告)日：1961-01-11

    申请号：GB2899559

    申请日：1959-08-25

    Applicant: BASF AG

    Inventor： HAMPRECHT GUENTHER ,  OERTEL HEIDRICH ,  SCHWARZMANN MATTHIAS

    IPC: C07F5/06

    Abstract: Compounds of formula Al.R(OR1)X where R represents C1-C3 alkyl, OR1 an alkoxy or aryloxy radical with up to 20 carbon atoms and X is chlorine, bromine or iodine are prepared by reacting an aluminium sesquihalide with an aluminium alcoholate or phenolate in stoichiometric proportions. Alcoholates and phenolates specified include those of methanol, ethanol, propanol, butanol, hexanol, octanol, dodecyl alcohol, cetyl alcohol, phenol, cresol and naphthol. The reaction is preferably carried out in an inert solvent, e.g. a halogenated hydrocarbon (carbon tetrachloride) or an aromatic hydrocarbon (benzene, toluene or xylene), and in the absence of air and moisture. The products may be used as reducing agents and polymerisation catalysts.

    43.
    发明专利
    未知

    公开(公告)号：DE3771937D1

    公开(公告)日：1991-09-12

    申请号：DE3771937

    申请日：1987-06-02

    Applicant: BASF AG

    Inventor： LERMER HELMUT ,  HOELDERICH WOLFGANG ,  SCHWARZMANN MATTHIAS

    IPC: B01J27/00 ,  C07B61/00 ,  C07D207/32 ,  C07D207/33 ,  C07D207/333 ,  C07D207/36 ,  C07D307/46 ,  C07D307/48 ,  C07D307/58 ,  C07D333/22 ,  C07D333/24 ,  C07D333/32

    Abstract: Acylated heteroatomatic cpds. of formula (I) in which X is O, S or NR5, R2-R4 are H, 1-12C alkyl, 1-12C alkenyl, 1-12C alkoxy, aryl, aralkyl or alkylaryl gp., R5 is H, 1-12C alkyl, 1-12C alkenyl, aryl, aralkyl or alkylaryl gp., and R6 is H, 1-12C alkyl, 1-12C alkenyl, aryl, aralkyl, alkylaryl or COOH gp., are prepd. by reacting a 5-membered heteroaromatic cpd. of formula (II) in which R1-R4 are H, 1-12C alkyl, 1-12C alkenyl, 1-12C alkoxy, aryl, aralkyl cr alkylaryl gp. R2-R5 are as above and at least one ofR1-R4 are H, with an acylating agent R6-CO-Y (III) in which Y is halide, alkoxy, acyloxy, hydroxy, amide or carboxyl gp., in the presence of zeolites as catalyst. Specifically claimed catalysts are e.g. zeolites of the Pentasil type, alumino-silicate zeolites, borosilicate zeolites, iron silicate zeolites, Faujasite and ultrastable faujasite type zeolites, alkali(ne earth) metal doped zeolites, transition metal doped zeolites, rare earth doped zeolites, Cs-doped zeolites, Ce and/or La doped zeolites, P doped zeolites and acid treated zeolites.

    FERROMAGNETIC CHROMIUM DIOXIDE CRYSTALS
    50.
    发明专利
    FERROMAGNETIC CHROMIUM DIOXIDE CRYSTALS 未知

    公开(公告)号：CA1015149A

    公开(公告)日：1977-08-09

    申请号：CA140315

    申请日：1972-04-21

    Applicant: BASF AG

    Inventor： LEUTNER BERND ,  SCHWARZMANN MATTHIAS ,  OHLINGER MANFRED

    IPC: C01G37/02 ,  G11B5/706

    Abstract: The invention relates to ferromagnetic chromium dioxide crystals which are particularly suitable as magnetic pigments for magnetic recording media and whose surface, for the purpose of stabilization, is protected with antimony or arsenic compounds which are sparingly soluble in water, and to a process for the production of chromium dioxide crystals thus stabilized by the precipitation of antimony or arsenic compounds which are sparingly soluble in water.

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