71.
    发明专利
    未知

    公开(公告)号:DE4433606A1

    公开(公告)日:1996-03-28

    申请号:DE4433606

    申请日:1994-09-21

    Applicant: BASF AG

    Abstract: A method is disclosed of producing polytetrahydrofurane or polytetrahydrofurane monoesters of C1-C10 monocarboxylic acids by polymerisation of tetrahydrofurane on a heterogenous catalyst in the presence of one of the following telogens: water, 1.4-butane diol, polytetrahydrofurane with a molecular weight of 200-700 Da, a C1-C10 monocarboxylic acid, or mixtures of these telogens. The catalyst used is a carrier catalyst which contains a catalytically active quantity of an oxygen-containing tungsten or molybdenum compound or mixtures of such compounds on an oxide carrier material and has undergone calcination at temperatures of 500-1000 DEG C after the precursors of the oxygen-containing molybdenum and/or tungsten compounds have been deposited on the carrier material precursor.

    72.
    发明专利
    未知

    公开(公告)号:DE3881442D1

    公开(公告)日:1993-07-08

    申请号:DE3881442

    申请日:1988-06-24

    Applicant: BASF AG

    Abstract: Prepn. of N-heterocycles of formula (I) and (II) in which R1 and R4-R9=H, alkyl, aryl, aralkyl, alkaryl or cycloalkyl gps., and R2 and R3=alkyl, alkaryl, substd. alkyl or cycloalkyl gps. The prepn. is characterised by reaction of olefins of formula (III) and (IV) (in which R2-R9 are as above) with NH3 or a prim. amine of formula H2NR1 in which R1 is as above, in the presence of a zeolite catalyst.

    73.
    发明专利
    未知

    公开(公告)号:DE3816576A1

    公开(公告)日:1989-11-16

    申请号:DE3816576

    申请日:1988-05-14

    Applicant: BASF AG

    Abstract: Polyunsaturated hydrocarbons of the formula are prepared from unsaturated alcohols of the formula in the presence of zeolite catalysts, in particular zeolites of the pentasil type.

    METHOD FOR THE SIMULTANEOUS PRODUCTION OF TETRAHYDROFURANS AND PYRROLIDONES

    公开(公告)号:MY139906A

    公开(公告)日:2009-11-30

    申请号:MYPI20030658

    申请日:2003-02-25

    Applicant: BASF AG

    Abstract: A PROCESS FOR COPRODUCING ALKYL-SUBSTITUTED OR UNSUBSTITUTED THF AND PYRROLIDONES BY CATALYTICALLY HYDROGENATION C4- DICARBOXYLIC ACIDS AND/OR DERIVATIVES THEREOF IN THE GAS PHASE IN THE PRESENCE OF COPPER CATALYSTS AND THE REACTING GBL WITH AMMONIA OR PRIMARY AMINES TO GIVE PYRROLIDONES COMPRISES A) HYDROGENATING C4-DICARBOXYLIC ACIDS AND/OR THE DERIVATIVES THEREOF IN THE GAS PHASE AT 200 TO 300°C, 10 TO 10000 KPA (0.1 TO 100 BAR), CATALYST HOURLY SPACE VELOCITIES OF FROM 0.01 TO 1 KG OF REACTANT/L OF CATALYST* HOUR AND REACTANT/HYDROGEN MATERIAL/HYDROGEN MOLAR RATIOS OF 20 TO 800 IN THE PRESENCE OF CATALYSTS COMPRISING COPPER, ALUMINIUM AND/OR ZINC TO GIVE MIXTURES OF THF AND GBL, B) SEPARATING THE HYDROGENATION EFFLUENT OBTAINED BY DISTILLATION INTO A THF/WATER MIXTURE AS TOP PRODUCT AND A GBL-CONTAINING BOTTOM PRODUCT, C) SEPARATING THE THF/WATER MIXTURE FROM STEP B) IN A DISTILLATION FACILITY CONSISTING OF THREE COLUMNS (1,2,3) BY WITHDRAWING WATER FROM THE BOTTOM OF THE FIRST COLUMN (1), RECYCLING WATER-CONTAINING THF FROM THE SECOND TO THE FIRST COLUMN, PASSING A SIDE STREAM FROM THE FIRST COLUMN (1) INTO THE SECOND COLUMN (2), RECYCLING THE BOTTOM PRODUCT OF THE THIRD COLUMN (3) INTO THE FIRST COLUMN (1) AND WITHDRAWING A DISTILLATE AT THE TOP OF THE FIRST COLUMN (1), WHEREIN A SIDE STREAM OF THE SECOND COLUMN (2) IS PASSED INTO THE THIRD COLUMN (3) AND THE PURE THF IS OBTAINED AS THE TOP PRODUCT OF THE THIRD COLUMN (3), D) RECOVERING GBL FROM THE GBL-CONTAINING BOTTOM PRODUCT FROM STEP B) BY DISTILLATION AND E) REACTING THE GBL OBTAINED WITH AMMONIA OR AMINES TO GIVE THE CORRESPONDING PYRROLIDONES.

    78.
    发明专利
    未知

    公开(公告)号:AT229505T

    公开(公告)日:2002-12-15

    申请号:AT00107126

    申请日:2000-04-07

    Applicant: BASF AG

    Abstract: The preparation of pyrrole derivatives (I) comprises catalytic dehydrogenation of pyrrolidines (II) at 150-300 degrees C and 0.01-50 bar on a catalyst comprising: (1) a composite (30-100 wt.%) comprising either (i) palladium on a rare earth or Group IVB metal oxide or (ii) platinum and palladium on alumina or a rare earth or Group IVB metal oxide; and (2) alkali(ne earth) metal oxide (0-70 wt.%). The preparation of pyrrole derivatives of formula (I) comprises catalytic dehydrogenation of pyrrolidines of formula (II) a 150-300 degrees C and 0.01-50 bar on a catalyst comprising: (1) a composite (30-100 wt.%) comprising either (i) palladium on a rare earth or Group IVB metal oxide or (ii) platinum and palladium on alumina or a rare earth or Group IVB metal oxide; and (2) alkali(ne earth) metal oxide (0-70 wt.%). R -R = H, 1-12C alkyl or 3-12C cycloalkyl.

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