22.
    发明专利
    未知

    公开(公告)号:AT231140T

    公开(公告)日:2003-02-15

    申请号:AT97929276

    申请日:1997-06-24

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/03303 Sec. 371 Date Jan. 7, 1999 Sec. 102(e) Date Jan. 7, 1999 PCT Filed Jun. 24, 1997 PCT Pub. No. WO98/01438 PCT Pub. Date Jan. 15, 1998The disclosure is a process for preparing a phthalide of the general formula I where R1, R2, R3 and R4 are each independently of the others hydrogen, C1-C4-alkyl or C1-C4-alkoxy, by hydrogenation of a phthalic anhydride of the general formula II where R1, R2, R3 and R4 are each as defined above, with the aid of a hydrogenation catalyst, which comprises performing the hydrogenation with the aid of a nickel catalyst doped with metals of subgroup 1, subgroup 6 and/or subgroup 7 of the Periodic Table.

    27.
    发明专利
    未知

    公开(公告)号:ES2158423T3

    公开(公告)日:2001-09-01

    申请号:ES97118631

    申请日:1997-10-27

    Applicant: BASF AG

    Abstract: Catalysts contain, on a porous metal oxide support, 0.1-6 wt% cobalt, nickel or a mixture, 0.001-25 wt% ruthenium, 0-10 wt% copper and 0-5 wt% promoter(s) of iron, rhodium, palladium, platinum, iridium, osmium, silver, gold, chromium, molybdenum, tungsten, rhenium zinc, cadmium, lead, manganese, tin, lithium, sodium, potassium, rubidium, caesium, phosphorus, arsenic, antimony, bismuth, tellurium or thallium. Also claimed are: (i) a process for the production of catalysts, by impregnating the support with the metals and promoters or their compounds, drying and calcining, and reducing the calcined catalyst in a stream of hydrogen, and (ii) a process for the production of amination products by reacting alkylene oxides, alcohol, aldehyde or ketones with ammonia or prim. or sec. amines in presence of free hydrogen and catalyst.

    Process for preparing hydrogenation catalyst

    公开(公告)号:CZ288323B6

    公开(公告)日:2001-05-16

    申请号:CZ197597

    申请日:1995-12-16

    Applicant: BASF AG

    Abstract: The proposed process for preparing a hydrogenation catalyst based on aluminium alloy and a transient metal is characterized by preparation of a kneading material from the alloy and an auxiliary agent, the kneading material is then formed to shaped bodies, the shaped bodies are subjected to calcination and the calcined shaped bodies are then treated with an alkali metal hydroxide, whereby the auxiliary agent is represented by (a) polyvinyl alcohol and water or (b) stearic acid. The catalyst is intended for hydrogenation and hydrogenolysis, particularly a partial hydrogenation of aliphatic alpha, omega-dinitriles to aliphatic alpha, omega-aminonitriles.

    30.
    发明专利
    未知

    公开(公告)号:DE19823835A1

    公开(公告)日:1999-12-02

    申请号:DE19823835

    申请日:1998-05-28

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing cyclopentanone by reacting adipic esters of formula (I) R1OOC-(CH2)4-COOR2 in which R1 and R2 represent alkyl radicals having 1 to 12 carbon atoms, cycloalkyl radicals having 5 or 6 carbon atoms, alkyl aryl or aryl radicals, and R2 can represent additional hydrogen, in the presence of oxidic catalysts. According to the inventive method, adipic esters of formula (I) are reacted with less than 5 wt.% of secondary products, said products not being adipic esters in the gas phase when in the presence of water, with a carrier gas, and a) 0.01 to 10 wt.% of at least one metal oxide, selected from the first or second main group of the periodic table or from the group of rare-earth metals, is reacted on titanium oxide or zirconium dioxide acting as a catalyst support, or b) 0.01 to 50 wt.% of at least one metal oxide, selected from the second main group of the periodic table, is reacted on zinc oxide acting as a catalyst support.

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