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    2.
    发明专利
    未知

    公开(公告)号：DE3776482D1

    公开(公告)日：1992-03-12

    申请号：DE3776482

    申请日：1987-10-21

    Applicant: BASF AG

    Inventor： TAVS PETER DR ,  LAAS HARALD DR ,  SCHAUER HORST ,  ARNOLD LOTHAR DR

    IPC: C07C45/74 ,  C07C45/78 ,  C07C45/82 ,  C07C45/85 ,  C07C49/603

    Abstract: Prepn. of 2,5,6-trimethyl cyclohex-2-ene-1-one comprises an addn. reaction of diethyl ketone with crotonaldehyde (or precursors which form crotonaldehyde) in the presence of alkali; fractional distn. of the reaction mixt. to give volatile unchanged starting materials and a residue; heating the residue with alkali (catalytic amts) at 120-250 deg.C, or without the catalyst at 150-250 deg.C and then fractional distn.

    3.
    发明专利
    未知

    公开(公告)号：DE1955828B1

    公开(公告)日：1971-04-08

    申请号：DE1955828

    申请日：1969-11-06

    Applicant: BASF AG

    Inventor： JUERGEN DR NIENBURG HANS ,  KNIESE WILHELM DR ,  KUMMER RUDOLF DR ,  TAVS PETER DR

    IPC: C07C27/22 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C29/158 ,  C07C29/16 ,  C07C45/50 ,  C07C67/00 ,  C07F9/50 ,  C07C45/10

    Abstract: An improved process for the production of aldehydes and alcohols by the oxo process comprising the reaction of olefinically unsaturated compounds with carbon monoxide and hydrogen at elevated temperatures and elevated pressures in the presence of carbonyl complexes of metals in Group VIII of the Periodic Table modified by trisubstituted organic phosphines and in the presence of alkali or alkaline earth metal salts of carboxylic acids, the improvement comprising the use of modifying agents which consist of trisubstituted organic phosphines containing one or more carboxylic acid groups, at least one of which is present in the form of its alkali metal or alkaline earth metal salt.

    Unbranched aldehydes - by hydroformylation of alkylenically unsatd cpds
    4.
    发明专利
    Unbranched aldehydes - by hydroformylation of alkylenically unsatd cpds 未知

    公开(公告)号：DE2139630A1

    公开(公告)日：1973-02-22

    申请号：DE2139630

    申请日：1971-08-07

    Applicant: BASF AG

    Inventor： NIENBURG HANS-JUERGEN DR ,  KUMMER RUDOLF DR ,  HOHENSCHUTZ HEINZ DR ,  STROHMEYER MAX DR ,  TAVS PETER DR

    IPC: C07C45/50 ,  C07C45/10

    Abstract: Unbranched aldehydes are made by hydroformylation of alkylenically unsatd. cpds. with 2-20 C with CO and H2 at elevated temps. and pressures in the pres. of cobalt carbonyl cpds. by (a) treating aq. soln. of cobalt salts with CO and H2 at 50-200 degrees C and 100-400 atm. in thepres. of active carbon, zeolites or basic ion exchangers charged with cobalt carbonyl, (b) in a second stage, without releasing the pressure, extracting the mixture at 20-100 degrees C and 100-400 atm. with a satd. hydrocarbon or with the unsatd. cpd. to be hydroformylated (provided this is insoluble in water and is liquid under the prevailing conditions) or with (hydrogenated) oxo reaction products is water insoluble, (c) removing the aq. phase and (d) subjecting the resulting carbonyl complex-contg. organic phase and the mixture of CO and H2 (after addition of the alkylenically unsatd. cpds. to be hydroformylated if not used in stage (b)) to hydroformylation at 70-170 degrees C and 100-400 atm. Suitable starting materials are 2-20C alkenes with terminal double bonds, alkene mixtures made by cracking waxes and polymers of ethylene, styrene, butyl, acrylate, etc. Process gives good selectivity to prodn. of unbranched aldehydes, useful in the prodn. of alkanols for washing agents and plasticisers, etc.

    7.
    发明专利
    未知

    公开(公告)号：DE3636057C1

    公开(公告)日：1988-01-07

    申请号：DE3636057

    申请日：1986-10-23

    Applicant: BASF AG

    Inventor： TAVS PETER DR ,  LAAS HARALD DR ,  SCHAUER HORST ,  ARNOLD LOTHAR DR

    IPC: C07C45/74 ,  C07C45/78 ,  C07C45/82 ,  C07C45/85 ,  C07C49/603 ,  C07C45/72

    Abstract: The yield of 2,5,6-trimethyl-cyclohex-2-en-1-one is increased by reacting diethyl ketyone, in the presence of an alkali, with crotonaldehyde or a compound which is converted to crotonaldehyde under the reaction conditions chose, and working up the reaction mixture by distillation, by a method in which the distillation residue obtained is either (a) heated at from 120 DEG to 250 DEG C. in particular from 120 DEG to 200 DEG C., with the addition of a catalytic amount of an alkali, or (b) heated at from 150 DEG to 250 DEG C. without the addition of such a substance, and the mixture of 2,5,6-trimethylcyclohex-2-en-1-one and diethyl ketone which is formed from the distillation residue as a result of the heat treatment is separated by distillation.

    8.
    发明专利
    未知

    公开(公告)号：DE3302498A1

    公开(公告)日：1984-07-26

    申请号：DE3302498

    申请日：1983-01-26

    Applicant: BASF AG

    Inventor： LAAS HARALD DR ,  TAVS PETER DR ,  HANNEBAUM HEINZ ,  STROEZEL MANFRED

    IPC: C07C46/08 ,  C07F15/06 ,  C07C119/10 ,  C07C50/02

    Abstract: Improved process for the preparation of salcomine useful as an oxidation catalyst for the oxidation of alkylated phenols to the corresponding alkylated p-benzoquinones by reacting salicylaldehyde with ethylenediamine in a mole ratio of about 2:1 and a cobalt salt in a liquid reaction medium wherein the reaction medium is a linear or cyclic carboxamide which is disubstituted on the nitrogen, in particular dimethylformamide, and the cobalt salt is cobalt carbonate or with the cobalt hyroxide carbonate, 2 CoCO3.3 Co(OH)2.H2O. Preparation of the salcomine in accordance with the invention offers significant advantages, both in the preparation of the salcomine itself and in the subsequent oxidation of the trimethylphenol to trimethyl-p-benzoquinone utilizing the salcomine.

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