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    12.
    发明专利
    未知

    公开(公告)号：DE2924785A1

    公开(公告)日：1981-01-29

    申请号：DE2924785

    申请日：1979-06-20

    Applicant: BASF AG

    Inventor： KUMMER RUDOLF DIPL CHEM DR ,  SCHNEIDER HEINZ-WALTER DIPL CH ,  TAGLIEBER VOLKER DIPL CHEM DR ,  WEISS FRANZ-JOSEF DIPL CHEM DR

    IPC: C07C67/08 ,  B01J31/00 ,  B01J31/20 ,  C07B61/00 ,  C07C67/38 ,  C07C67/58 ,  C07C69/34 ,  C07C69/44 ,  C07C69/533

    Abstract: A process for the preparation of butanedicarboxylic acid esters, wherein (a) an aqueous cobalt salt solution is treated with excess carbon monoxide and hydrogen in the presence of active charcoal laden with cobalt carbonyl, (b) the resulting aqueous solution of cobalt carbonyl hydride is extracted with butadiene or a butadiene containing hydrocarbon mixture and the aqueous phase is separated off, (c) the butadiene, or butadiene/hydrocarbon mixture, containing cobalt carbonyl hydride, cobalt carbonyl and butenyl-cobalt tricarbonyl, is reacted with carbon monoxide and excess C1-C4-alkanol in the presence of a tertiary nitrogen base, (d) the resulting reaction mixture is freed from the tertiary nitrogen base contained therein, down to a content of from 0.1 to 0.3 mole per mole of pentenoic acid ester, and from excess hydrocarbons, and the pentenoic acid ester remaining in the reaction mixture is reacted with carbon monoxide and excess C1-C4-alkanol in the presence of the cobalt carbonyl and tertiary nitrogen base contained in the reaction mixture, (e) the reaction mixture is treated with an oxidizing agent in the presence of the aqueous acid solution which has been separated off in stage (b), and the mixture is separated into an organic phase, from which butanedicarboxylic acid esters are isolated by distillation, and an aqueous phase, and (f) the aqueous phase is extracted with water-immiscible solvents, the phases are separated, and the resulting aqueous phase is freed from alkanols and tertiary nitrogen base and is recycled to stage (a).

    14.
    发明专利
    未知

    公开(公告)号：DE2332638A1

    公开(公告)日：1975-01-23

    申请号：DE2332638

    申请日：1973-06-27

    Applicant: BASF AG

    Inventor： STROHMEYER MAX DIPL CHEM DR ,  NIENBURG HANS JUERGEN DR ,  KUMMER RUDOLF DIPL CHEM DR ,  HOHENSCHUTZ HEINZ DIPL CHEM DR

    IPC: C01G51/02 ,  C07C45/50 ,  C07C45/85

    Abstract: Solutions of cobalt carbonyl and cobalt carbonyl hydride in organic solvents are prepared by treating aqueous solutions of cobalt salts with carbon monoxide and hydrogen at a temperature of from 50 DEG to 200 DEG C and a pressure of from 50 to 500 atmospheres in the presence of solvents which are sparingly water-miscible or are water-immiscible and which have a content of cobalt carbonyl, cobalt carbonyl hydride or mixtures thereof, the starting materials and the organic solvents being passed cocurrently through a zone in which a turbulent flow is maintained. The improvement includes using n-butanol as solvent. Solutions of cobalt carbonyl and cobalt carbonyl hydride in n-butanol are suitable as catalyst solutions for oxo syntheses.

    16.
    发明专利
    未知

    公开(公告)号：DE2836518A1

    公开(公告)日：1980-03-06

    申请号：DE2836518

    申请日：1978-08-21

    Applicant: BASF AG

    Inventor： PLATZ ROLF DIPL CHEM DR ,  KUMMER RUDOLF DIPL CHEM DR ,  SCHNEIDER HEINZ-WALTER DIPL CH

    IPC: B01J31/00 ,  C07B61/00 ,  C07C67/38 ,  C07C69/44 ,  C07C69/533

    Abstract: Multistep process for the preparation of butanedicarboxylic acid by the hydrogenation of carbon monoxide under pressure in the presence of a cobalt carbonyl catalyst, the improvement of heating at a temperature of 250 DEG to 350 DEG C. under superatmospheric pressure the resulting aqueous solution of cobalt carbonyl hydride that has been extracted with butadiene or with mixtures thereof before using in a subsequent step of the multistep process.

    Formyl propyl acetate prepn from allyl acetate - by hydroformulation using dicobalt octacarbonyl catalyst in paraffin as solv
    20.
    发明专利
    Formyl propyl acetate prepn from allyl acetate - by hydroformulation using dicobalt octacarbonyl catalyst in paraffin as solv 未知

    公开(公告)号：DE2451473A1

    公开(公告)日：1976-05-13

    申请号：DE2451473

    申请日：1974-10-30

    Applicant: BASF AG

    Inventor： KUMMER RUDOLF DIPL CHEM DR

    IPC: C07C29/16 ,  C07C69/14

    Abstract: Prepn. of formyl propyl acetates of formula OHC -(n-C3H6)-O-CO-CH3 (I) (where formyl gp. can be in position 1, 2 or 3 of n-C H6 grouping) by hydroformylation of allyl acetate with CO and H2 in the presence of an organic solvent and CO2(CO)8 as catalyst takes place by (a) using paraffins or paraffin mixts. which are liquid at 40-120 degrees C as organic solvents, and (b) maintaining in paraffin phase a concn. of 0.05-1.5 wt. % CO2(CO)8, w.r.t. paraffin. (I) can be obtd. in >95% purity and 85-95% yields; reaction times are short and reaction mixt. is easily processed; (I) are insoluble in paraffins whereas CO2(CO)8 can be enriched therein to an extent of 70-80%. Catalyst-contg. paraffin phase can be returned to hydroformylation after separating (I). Isomer mixt. (I) can be hydrogenated to diols, useful as components in polyester and polyurethane chemistry.

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