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    Working up mixts. from telemerisation of 1,3-butadiene with water - by distn. with a counter-current of water vapour, esp. to improve isolation of octa-2,7-dien-1-ol
    1.
    发明专利
    Working up mixts. from telemerisation of 1,3-butadiene with water - by distn. with a counter-current of water vapour, esp. to improve isolation of octa-2,7-dien-1-ol 未知

    公开(公告)号：DE4223363A1

    公开(公告)日：1993-02-04

    申请号：DE4223363

    申请日：1992-07-16

    Applicant: BASF AG

    Inventor： THOME ALFRED DR ,  ROEPER MICHAEL DR ,  STEEGMUELLER FRANZ-JOSEF

    IPC: C07C29/80

    Abstract: Distillative work-up of telomer mixts. (I) from the transition metal complex-catalysed telomerisation of 1,3-butadiene with water is effected by passing the mixt. (I) through the distn. appts. against a countercurrent of water vapour. In more detail, an inert gas is also passed through the appts., and distn. is pref. carried out at below 200 mbar in a thin-film evaporator; the condensate is sepd. into organic and aq. phases, then the aq. phase is superheated and the superheated vapour is recycled through the appts. as a countercurrent to (I); the bottom prod. from distn. is returned to the telomerisation reactor. USE/ADVANTAGE - Provides an economical process for working up mixts. (I), esp. to separate the octadienols obd. by telomerisation of butadiene with water in the presence of Pd/phosphine complex catalysts; passing steam through the distn. appts. as above results in a marked improvement in the efficiency of sep., together with a higher throughput under relatively mild conditions and minimal prodn. of high-boiling ethers, without reducing the activity of the catalyst.

    5.
    发明专利
    未知

    公开(公告)号：DE3924720A1

    公开(公告)日：1991-01-31

    申请号：DE3924720

    申请日：1989-07-26

    Applicant: BASF AG

    Inventor： KOEFFER DIETER DR ,  BERTLEFF WERNER DR ,  ROEPER MICHAEL DR

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

    Abstract: Olefinically unsaturated compounds are hydroformylated in an organic reaction medium with the aid of rhodium complex catalysts which are soluble in the reaction medium by performing the reaction in the presence of water-insoluble rhodium complex catalysts and also in the presence of arylthiols of the general formula I Ar-SH I where Ar is substituted or unsubstituted aryl.

    7.
    发明专利
    未知

    公开(公告)号：DE3719938A1

    公开(公告)日：1988-12-29

    申请号：DE3719938

    申请日：1987-06-15

    Applicant: BASF AG

    Inventor： BERTLEFF WERNER DR ,  MAERKL ROBERT DR ,  ROEPER MICHAEL DR

    IPC: C07B61/00 ,  B01J31/20 ,  C07C67/313 ,  C07C67/38 ,  C07C69/67

    Abstract: omega -Formylalkanecarboxylic esters are prepared by hydroformylation of alkenecarboxylic esters with carbon monoxide and hydrogen at elevated temperature and under elevated pressure in the presence of cobalt carbonyl complexes, in which alpha , beta -unsaturated alkenecarboxylic esters are hydroformylated in the presence of 0.01 to 1 mol% of cobalt carbonyl complexes, calculated as cobalt, while maintaining a conversion of alpha , beta -unsaturated alkenecarboxylic esters of 10 to 70 %.

    9.
    发明专利
    未知

    公开(公告)号：AT224903T

    公开(公告)日：2002-10-15

    申请号：AT00103428

    申请日：2000-02-25

    Applicant: BASF AG

    Inventor： MACKEWITZ THOMAS DR ,  ROEPER MICHAEL DR ,  BREIT PROF DR BERNHARD

    IPC: C07F9/6568

    Abstract: Preparation of phosphabenzene compounds (A) by reacting the corresponding pyrilium salt (III) with phosphine, optionally in presence of solvent but without addition of acid catalyst or base. (III) and phosphine are contacted at about 0 degrees C then reacted at 0-200 degrees C at pressure over 1 bar. (A) have formulae (I) or (II); R -R = hydrogen, COOM, SO3M, NR3X, NR2, OR, COOR, SR, 1-12C alkyl, 6-12C aryl, 7-12C aralkyl or alkaryl, or 3-6C heterocyclylalkyl with 1-3 heteroatoms, optionally substituted by the above groups, or two or more R groups together form a fused aliphatic ring; M = hydrogen, ammonium or alkali metal; X = anion; R = hydrogen or 1-6C alkyl; W = bridge comprising covalent bond, oxygen, sulfur, amino, di(1-6C)alkylsilyl or 1-16C residue that includes one or more linked cyclic or aromatic nuclei and optionally interrupted by 1-3 heteroatoms, and each o- or m-position on the phosphabenzene ring that is not bound to the bridge may be substituted by R -R .

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