62.
    发明专利
    未知

    公开(公告)号:ES2071139T3

    公开(公告)日:1995-06-16

    申请号:ES91102495

    申请日:1991-02-21

    Applicant: BASF AG

    Abstract: Process for the preparation of 1,4-alkylenediamines of the general formula I … … in which the substituents R and R , independently of one another, denote hydrogen, C1- to C10-alkyl, phenyl or benzyl, by reaction of succinonitriles of the general formula II … … in which R and R have the abovementioned meanings, with hydrogen at temperatures of 30 to 250 DEG C and pressures of 50 to 350 bar over hydrogenation catalysts, in which the hydrogenation catalysts contain cobalt oxide and one or more oxides of the elements iron, nickel, manganese, chromium, molybdenum, tungsten, phosphorus and one or more oxides of the alkali metal, alkaline earth metal, rare earth metal groups of the periodic table of the elements, of scandium and/or of yttrium.

    64.
    发明专利
    未知

    公开(公告)号:DE59102424D1

    公开(公告)日:1994-09-08

    申请号:DE59102424

    申请日:1991-10-11

    Applicant: BASF AG

    Abstract: A process for the preparation of saturated alcohols by catalytic hydrogenation of acetylenic alcohols at a temperature of from 50 DEG to 200 DEG C. and under a pressure of from 30 to 320 bar, wherein use is made of a catalyst containing from 20 to 85% of nickel oxide, from 0 to 30% w/w of copper oxide, from 1 to 30% w/w of zirconium dioxide, from 1 to 30% w/w of silicon dioxide and from 1 to 30% w/w of aluminum oxide, by weight of the oxidic, unreduced catalyst.

    67.
    发明专利
    未知

    公开(公告)号:DE3877463D1

    公开(公告)日:1993-02-25

    申请号:DE3877463

    申请日:1988-08-23

    Applicant: BASF AG

    Abstract: Prepn. is claimed of aldehydes by gas-phase hydrogenation of aromatic carboxylic acids, or aliphatic carboxylic acids which possessup to one hydrogen atom alpha to the carboxyl or esters or anhydrides of these acids, at temps. of 300 to 450 deg.C and pressures of 0.1 10 bar aided by special iron as catalysts. Cpds are prepd. by burning carbonyls in air and oxygen to the required level of iron oxide, and may be impregnated into an inert carrier of suitable particle size and mixed with an appropriate lubricant for use in a fluidised bed reactor.

Patent Agency Ranking