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    Continuous production of diaminodicyclo-hexylalkanes
    1.
    发明授权
    Continuous production of diaminodicyclo-hexylalkanes 失效
    连续生产二氨基二氢邻苯二甲酸

    公开(公告)号：US3632648A

    公开(公告)日：1972-01-04

    申请号：US3632648D

    申请日：1968-06-04

    Applicant: BASF AG

    Inventor： CORR HUBERT ,  LOESCH NORBERT ,  PILCH KURT

    IPC: C07C85/14

    CPC classification number: C07C209/72

    Abstract: A PROCESS FOR THE CONTINUOUS PRODUCTION OF DIAMINODICYCLOHEXYLALKANES BY CONTACTING DIAMINODIPHENYLALKANES WITH HYDROGEN AT ELEVATED TEMPERATURE AND SUPERATMOS-PHERIC PRESS PHERIC PRESSURE IN THE PRESENCE OF HYDROGENATION CATALYSTS CONTAINING COBALT, WHEREIN THE IMPROVEMENT CONSISTS IN CARRYING OUT THE REACTION AT A TEMPERATURE OF MORE THAN 180*C. AND A PRESSURE OF MORE THAN 50 ATMOSPHERES IN THE PRESENCE OF A HYDROGENATION CATALYST CONTAINING COBALT WHOSE COPPER CONTENT IS LESS THAN 0.5% BY WEIGHT WITH REFERENCE TO COBALT AND MAINTAINING A WATER CONTENT OF LESS THAN 0.4% BY WEIGHT IN THE REACTION MIXTURE. DIAMINODICYCLOHEXYLALKANES ARE SUITABLE AS HARDENERS FOR EPOXY RESINS AND FOR THE PRODUCTION OF POLYAMIDES.

    Improvements in the oxo process
    3.
    发明专利
    Improvements in the oxo process 未知

    公开(公告)号：GB1079209A

    公开(公告)日：1967-08-16

    申请号：GB4933764

    申请日：1964-12-04

    Applicant: BASF AG

    Inventor： LANDGRAF ALFRED ,  NIENBURG HANS ,  LOESCH NORBERT ,  APPL MAX ,  FRANCKE DIETHARD

    IPC: B01J10/00 ,  C07C45/50

    Abstract: In a process for the production of aldehydes and alcohols by reaction of olefins in a liquid reaction medium with carbon monoxide and hydrogen in the presence of a known cobalt carbonyl oxo catalyst or a known precursor for in situ preparation thereof, the catalyst being soluble in the reaction medium, at elevated temperature and at superatmospheric pressure in a reactor, wherein back-mixing of reactants and products takes place by circulation of the liquid reaction medium within the confines of the reactor, the circulation is substantially induced by introducing the liquid reactants into the reactor at a linear velocity of at least 2 m./sec., whereby momentum is transferred from the reactants to the liquid reaction medium. An example describes the production of nonyl aldehyde from an octene mixture.

    Continuous oxidation of aromatic compounds with nitric acid
    7.
    发明专利
    Continuous oxidation of aromatic compounds with nitric acid 未知

    公开(公告)号：GB974068A

    公开(公告)日：1964-11-04

    申请号：GB1589263

    申请日：1963-04-23

    Applicant: BASF AG

    Inventor： BORTHOLOME ERNST ,  NIENBURG HANS ,  SCHENK WALTER ,  SCHERF KARL ,  LOESCH NORBERT ,  WALLIS ALBRECHT ,  VOGEL LUDWIG

    IPC: B01J14/00 ,  B01J19/00 ,  B01J19/24 ,  C07C51/275 ,  C07C205/57 ,  C07D213/79 ,  C07D213/803 ,  C07D215/48 ,  C07D215/50

    Abstract: The parent Specification describes a process in which aromatic mononuclear compounds containing oxidizable side chains are oxidized to the corresponding carboxylic acids with nitric acid at a raised temperature and pressure, the reaction being effected in a vertical reactor through which the reagents flow upwardly and the reagents being mixed, at a temperature below the reaction temperature, before they enter the reactor, the arrangement being such that the speed of the mixture is decreased to at least one third as it enters the reactor. This process is now modified in that only 30-60% of the required nitric acid is supplied to the mixer, the remainder being supplied directly to the reactor at about the middle third. As in the parent Specification, the reaction may be effected at 150-400 DEG C. at 10-150 atm. pressure and optionally in the presence of the catalysts named in the parent Specification. Specified materials which may be oxidized are toluene, xylenes, cymene, diisopropylbenzenes, chlorotoluenes, nitrotoluenes, chloroxylenes, nitroxylenes, mesitylene, durene, toluic acids, benzyl chloride, xylylene dichlororide, chloromethylated xylenes, picolines and ethylpyridines. An example is given of the oxidation of p-xylene to terephthalic acid.

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