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    21.
    发明专利
    未知

    公开(公告)号：DE2414253A1

    公开(公告)日：1975-10-16

    申请号：DE2414253

    申请日：1974-03-25

    Applicant: BASF AG

    Inventor： KUMMER RUDOLF DIPL CHEM DR

    IPC: C07C29/136 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C29/141 ,  C07C29/16 ,  C07C31/20 ,  C07C41/50 ,  C07C67/00

    Abstract: 1,6-Hexanediol is manufactured by hydroformylation of 1,3-butadiene by a process wherein an acetal of pent-3-en-1-al is formed in a first hydroformylation step in the presence of lower alkanols or alkanediols and of rhodium catalysts, and is then converted into 1,6-hexanediol in a second hydroformylation step in the presence of cobalt catalysts, followed by hydrogenation.

    Oxygen removal from gas with phosphine manganous halide complex - using predried gas to prevent deactivation of complex by water
    26.
    发明专利
    Oxygen removal from gas with phosphine manganous halide complex - using predried gas to prevent deactivation of complex by water 未知

    公开(公告)号：DE2927734A1

    公开(公告)日：1981-02-05

    申请号：DE2927734

    申请日：1979-07-10

    Applicant: BASF AG

    Inventor： RICHTER WOLFGANG DIPL CHEM DR ,  KUMMER RUDOLF DIPL CHEM DR ,  PLATZ ROLF DIPL CHEM DR

    IPC: B01D53/14 ,  C01B13/02

    Abstract: In the removal and opt. recovery of O2 from gas by treatment with phosphine complexes with Mn (II) halides, the gas, if moist, is predried. Drying prevents an irreversible change, so that the complex retains a large fraction of its activity and can be used for continuous exchange. The complexes are useful for sepg. O2 from air in confined spaces, e.g. ships and aircraft, for removing traces of O2 from gases and esp. as detectors for the O2 content of gases, since they are intensely coloured when combined with O2 and colourless to pale yellow when free from O2. In an example, air was passed into 10 g 9 wt.% soln. of the dimethylphenylphosphine-Mn (II) bromide complex in THF at 20 deg.C and normal pressure. The soln. was yellowish initially and became intensely coloured very rapidly. If 2 ml water were added, the colour disappeared immediately and the O2 binding complex was destroyed. If O2 was introduced again, it was no longer bound. If 60 ml BuOH were added, the complex was destroyed within 15 min.

    Di:methyl adipate and isomer recovery - for methyl-pentenoate methoxy-carbonylation reaction mixt., by hydrocarbon extn. with addn. of water
    29.
    发明专利
    Di:methyl adipate and isomer recovery - for methyl-pentenoate methoxy-carbonylation reaction mixt., by hydrocarbon extn. with addn. of water 未知

    公开(公告)号：DE2646955A1

    公开(公告)日：1978-04-20

    申请号：DE2646955

    申请日：1976-10-18

    Applicant: BASF AG

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

    IPC: C07C67/48 ,  C07C69/34

    Abstract: Dimethyl adipate, (I) dimethyl alpha-Me glutarate, (II), and dimethyl Et succinate, (III) are recovered from reaction mixts. prepd. by reacting Me pent-3-enoate with CO, under increased temp. and pressure, in the presence of Co carbonyl, heterocyclic aromatic tert. N bases and MeOH. The reaction mixt. is extd. with paraffinic hydrocarbons having b.pt. 40-120 degrees C in the presence of 0.1-5 wt.% water, w.r.t. reaction mixt. The catalyst-contg. MeOH phase is separated. (I), (II), and (III) are obtd. from paraffinic hydrocarbon phase by distn., e.g. by fractional distn. or several consecutive distns. (I), (II) and (III) mixts. with water glass can be used as oil reinforcing agents. (I) is easily converted to adiponitrile, which can be hydrogenated to hexamethylene diamine, a starting material for high polymers. (I) (II) and (III) are obtd. in pure form and the catalyst is not decomposed and can be recovered in active form. The catalyst-contg. aq. MeOH phase can be re-used for methoxy-carbonylation of Me pent-3-enoate. The recovered paraffinic hydrocarbons can be re-used for extn.

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