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    135.
    发明专利
    未知

    公开(公告)号：DE3301591A1

    公开(公告)日：1984-07-19

    申请号：DE3301591

    申请日：1983-01-19

    Applicant: BASF AG

    Inventor： KUMMER RUDOLF DR ,  RICHTER WOLFGANG DR ,  SCHWIRTEN KURT DR ,  STOPS PETER

    IPC: B01J31/00 ,  B01J31/22 ,  B01J31/24 ,  C07B61/00 ,  C07C45/00 ,  C07C45/50 ,  C07C47/02 ,  C07C67/00 ,  C07C47/21

    Abstract: Olefinically unsaturated compounds are continuously hydroformylated under from 2 to 30 bar and at from 80 DEG to 130 DEG 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 and the recycle gas in a separator, and the recycle gas and the liquid phase from the devolatilization column are recycled to the reactor.

    CONTINUOUS PROCESS FOR THE PRODUCTION OF ETHANOL
    136.
    发明专利
    CONTINUOUS PROCESS FOR THE PRODUCTION OF ETHANOL 未知

    公开(公告)号：DE3162542D1

    公开(公告)日：1984-04-12

    申请号：DE3162542

    申请日：1981-12-23

    Applicant: BASF AG

    Inventor： KUMMER RUDOLF DR ,  TAGLIEBER VOLKER DR ,  SCHNEIDER HEINZ-WALTER DR

    IPC: C07C29/132 ,  B01J31/00 ,  B01J31/20 ,  C07B61/00 ,  C07C27/00 ,  C07C27/04 ,  C07C29/136 ,  C07C29/149 ,  C07C29/80 ,  C07C29/92 ,  C07C31/08 ,  C07C67/00 ,  C07C67/36 ,  C07C69/14

    Abstract: Ethanol is produced continuously via the carbonylation of methanol, by (a) carbonylating methanol, in a reactor R, in the presence of a carbonyl complex of a metal of group VIII of the periodic table and of a halogen compound, (b) separating, in a distillation column D1, the reactor discharge, into a top fraction comprising methyl acetate, methanol, dimethyl ether and an organohalogen compound, and into a bottom fraction comprising water, small quantities of acetic acid and the catalyst, if the latter is not in a fixed bed, the residence time being so adjusted that the greater part of the acetic acid reacts with the methanol present to give methyl acetate, (c) separating the top fraction from D1, in a distillation column D2, into a top fraction comprising small quantities of methyl acetate, methanol, dimethyl ether and the organo-halogen compound, and a bottom fraction comprising methyl acetate and methanol, and recycling the top fraction to reactor R, (d) distilling off, via the top of distillation column D3, the greater part of the water from the bottom fraction from D1and removing this water from circulation, and recycling to reactor R the bottom fraction consisting of small quantities of water, acetic acid and the catalyst, (e) using hydrogen to hydrogenate, in the hydrogenation reactor H, the bottom fraction from D2, in a conventional manner, to give a mixture of methanol and ethanol, and (f) separating the mixture into ethanol and methanol in a distillation column D4, and recycling the methanol to reactor R.

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