1.
    发明专利
    未知

    公开(公告)号:DE19514146A1

    公开(公告)日:1996-10-17

    申请号:DE19514146

    申请日:1995-04-15

    Applicant: BASF AG

    Abstract: A cup catalyst consisting of a glass substrate, the pores of which have a diameter of at least 10 nm and on which there is a catalytically active layer containing compounds of elements from the alkaline metal, alkali metal earth and/or lanthanide group of the periodic system and process for producing aziridines, preferably ethylene imine, by the intramolecular catalytic dehydration of alkanol amines, preferably ethanol amine, in the gas phase at temperatures of at least 250 DEG C on the above-described cup catalysts and isolation of the aziridines from the reaction mixture.

    4.
    发明专利
    未知

    公开(公告)号:DE4409310A1

    公开(公告)日:1995-09-21

    申请号:DE4409310

    申请日:1994-03-18

    Applicant: BASF AG

    Abstract: The invention concerns a shell-type catalyst comprising a metallic carrier material and a catalytically active layer which adheres firmly thereto, which contains elements of the alkali, alkaline earth and/or lanthanide group of the periodic system of elements and which can be obtained by physical or chemical vapour deposition on the carrier material. The invention further concerns the use of shell-type catalysts and a process for preparing aziridines by the catalytic intramolecular splitting off of water in the gaseous phase from compounds of formula (I), in which R , R , R , R and R , independently of one another, signify H or C1 - C4 alkyl and R additionally stands for cyclohexyl, phenyl, benzyl, C1 - C8 hydroxyalkyl or C1 - C8 aminoalkyl.

    5.
    发明专利
    未知

    公开(公告)号:DE4325237A1

    公开(公告)日:1995-02-02

    申请号:DE4325237

    申请日:1993-07-28

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/02195 Sec. 371 Date Jan. 29, 1996 Sec. 102(e) Date Jan. 29, 1996 PCT Filed Jul. 5, 1994 PCT Pub. No. WO95/04024 PCT Pub. Date Feb. 9, 1995Alkoxylation products are prepared by reacting compounds having active hydrogen atoms with C2-C4-alkylene oxides in the presence of a mixed hydroxide built up of polycations and modified with additives and having the general formula I or II[M(II)1-xM(III)x(OH)2]Ax/nxm L(I)[LiAl2(OH)6]A1/nxm L(II)where M(II) is at least one divalent metal ion, M(III) is at least one trivalent metal ion, A is at least one inorganic anion and L is an organic solvent or water, n is the valence of the inorganic anion A or in the case of a plurality of anions A is their mean valence and x can assume a value of from 0.1 to 0.5 and m can assume a value of from 0 to 10, as alkoxylation catalyst, wherein the mixed hydroxide contains additives.

    10.
    发明专利
    未知

    公开(公告)号:DE4423975A1

    公开(公告)日:1996-01-11

    申请号:DE4423975

    申请日:1994-07-07

    Applicant: BASF AG

    Abstract: Process for the catalytically oxidative dehydrogenation of alkyl aromatics or paraffin hydrocarbons to the corresponding alkenyl aromatics or olefins by means of a redox catalyst (oxygen vehicle) in which in a first reaction stage the alkyl aromatic or paraffin hydrocarbon (educt) is dehydrogenated on a titanium dioxide carrier in the absence of molecular oxygen with a catalyst of a reducible metal oxide selected from the oxides of Bi, V, Ce, Fe, In, Ag, Cu, Co, Mn, Pb, Sn, Mo, Sb, As, W or their mixtures, whereby the catalyst is reduced, and in a second reaction stage the reduced catalyst is reoxidised by an oxidising agent.

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