45.
    发明专利
    未知

    公开(公告)号:BR9709702A

    公开(公告)日:1999-08-10

    申请号:BR9709702

    申请日:1997-05-30

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/02821 Sec. 371 Date Dec. 14, 1998 Sec. 102(e) Date Dec. 14, 1998 PCT Filed May 30, 1997 PCT Pub. No. WO97/47386 PCT Pub. Date Dec. 18, 1997An oxidation catalyst based on titanium silicalites or vanadium silicalites having a zeolite structure and containing from 0.01 to 30% by weight of one or more noble metals selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium, platinum, rhenium, gold and silver has been molded by a compacting shaping process. This oxidation catalyst is used for the preparation of epoxides, in particular propylene oxide, from olefins, hydrogen and oxygen.

    46.
    发明专利
    未知

    公开(公告)号:DE59602289D1

    公开(公告)日:1999-07-29

    申请号:DE59602289

    申请日:1996-08-05

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/03441 Sec. 371 Date Jan. 27, 1998 Sec. 102(e) Date Jan. 27, 1998 PCT Filed Aug. 5, 1996 PCT Pub. No. WO97/06189 PCT Pub. Date Feb. 20, 1997A process for the preparation of halogen-free, reactive polyisobutene having a content of terminal double bonds of more than 50 mol % and an average molecular weight Mn of from 500 to 5000 dalton by the cationic polymerization of isobutene or isobutene-containing hydrocarbon mixtures in the liquid phase, wherein the polymerization is carried out at a temperature of from -30 DEG to +40 DEG C. over a heterogeneous polymerization catalyst containing at least one element acting as promoter and selected from Group IB, Group IIB, Group IIIB, Group IVB, Group VB, Group VIIB, or Group VIIIB of the Periodic Table or from Group IIA, Group IIIA, Group IVA, Group VA, or Group VIA of the Periodic Table or a number of said elements in each case in the form of an oxygen-containing compound and zirconium in the form of an oxygen-containing compound, said polymerization catalyst containing no industrially effective amounts of halogens.

    47.
    发明专利
    未知

    公开(公告)号:DE59506248D1

    公开(公告)日:1999-07-22

    申请号:DE59506248

    申请日:1995-09-23

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/03771 Sec. 371 Date Apr. 4, 1997 Sec. 102(e) Date Apr. 4, 1997 PCT Filed Sep. 23, 1995 PCT Pub. No. WO96/10535 PCT Pub. Date Apr. 11, 1996Hydroxylamines are prepared from ammonia or the corresponding amines, hydrogen and oxygen by a process in which the starting materials are reacted under heterogeneous catalysis using an oxidation catalyst based on a titanium or vanadium silicalite having a zeolite structure and containing from 0.01 to 20% by weight of one or more platinum metals selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, the platinum metals each being present in at least two different bond energy states.

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