PREPARATION OF BUTANEDICARBOXYLIC ACID ESTERS

    公开(公告)号:CA1126752A

    公开(公告)日:1982-06-29

    申请号:CA319539

    申请日:1979-01-12

    Applicant: BASF AG

    Abstract: O.Z. 0050/033014 In a process for the preparation of butanedicarboxylic acid esters bya) reacting butadiene or hydrocarbon mixtures containing butadiene with carbon monoxide and a C1-C4-alkanol in the presence of a tertiary nitrogen base and a cobalt carbonyl catalyst at from 80 to 150.degree.C under superatmospheric pressure,b) removing the greater part of the tertiary nitrogen base together with any excess hydrocarbon andc) reacting the resulting pentenoic acid ester, in the presence of the catalyst remaining in the reaction mixture, and in the presence of the remaining amount of tertiary nitrogen base, with carbon monoxide and a C1- to C4-alkanol at from 140 to 200.degree.C under superatmospheric pressure, to give the butanedicarboxylic acid ester, the improvement wherein the reaction mixture in stage c) is substantially free from dissolved butadiene or butadiene bonded to the catalyst. Butanedicarboxylic acid esters may be used for the preparation of polymers.

    METHOD OF PREPARING AMINES FROM OLEFINS OVER BORON 'BETA'-ZEOLITES

    公开(公告)号:SK20298A3

    公开(公告)日:1998-11-04

    申请号:SK20298

    申请日:1996-08-19

    Applicant: BASF AG

    Abstract: Disclosed is a method for production of amines according to formula (I), wherein the variables with the upper index are R1, R2, R3, R4, R5, R6, H, C1-20 alkyl, C2-20 alkenyl, C2-20 alkinyl, C3-20 cycloalkyl, C4-20 alkylcycloalkyl, C4-20 cycloalkylalkyl, aryl, C7-20 alkylaryl or C7-20 aralkyl, R1 and R2 together saturated or unsaturated C3-9 alkylene di-chain and R3 or R5 C21-200 alkyl, C21-200 alkenyl or together C2-12 alkylene di-chain, by reaction olefine according to formula (II) wherein R3, R4, R5 and R6 have the said meanings, with ammonia or primary or secondary amines according to general formula (III), wherein R1 and R2 have the said meanings, under the temperature from 200 C to 350 C and under the pressure from 100 to 300 . 10exp(5) Pa in the presence of zeolite catalyst with the use of boro-BETA-zeolites as a zeolite catalyst.

    CONTINUOUS HYDROFORMYLATION OF OLEFINICALLY UNSATURATED COMPOUNDS

    公开(公告)号:CA1254584A

    公开(公告)日:1989-05-23

    申请号:CA445102

    申请日:1984-01-11

    Applicant: BASF AG

    Abstract: of the DiscLosure: OLefinicaLLy unsaturated compounds are continuousLy hydroformyLated under from 2 to 30 bar and at from 80 to 130.degree.C using, as a cataLyst, a rhodium compLex which contains, as Ligands, sparingLy voLatiLe compounds of the generaL formuLa I I where A is phosphorus, arsenic, antimony or bismuth and R1, R2 and R3 are each organic radicaLs by a method in which the hydroformyLation mixture consisting of Liquid and gaseous components is removed from the reactor and is subjected to reLativeLy high temperatures and/or reLativeLy Low pressures for a short time in a devoLatiLization coLumn, the mixture at the same time being separated into a gas phase and a Liquid phase, the gas phase is separated into the product ant the recycLe gas in a separator, and the recycLe gas and the Liquid phase from the devoLatiLization coLumn are recycLed to the reactor.

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