中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

123 records (took 0.028 seconds)

    PROCESS FOR PREPARING n-BUTYLAMINES
    2.
    发明专利
    PROCESS FOR PREPARING n-BUTYLAMINES 审中-公开

    公开(公告)号：JP2002265423A

    公开(公告)日：2002-09-18

    申请号：JP2001395336

    申请日：2001-12-26

    Applicant: BASF AG

    Inventor： FUNKE FRANK DR ,  STEINBRENNER ULRICH ,  ZEHNER PETER ,  BOEHLING RALF ,  HARDER WOLFGANG DR

    IPC: C07C209/68 ,  C07B61/00 ,  C07C209/60 ,  C07C209/70 ,  C07C211/02 ,  C07C211/07 ,  C07C211/09 ,  C07C211/21

    Abstract: PROBLEM TO BE SOLVED: To provide a process for preparing n-butylamines by which the defects in the prior art are overcome, and the desired n-butylamine, or two or more desired n-butylamines can be produced in a high space time yield and selectivity. SOLUTION: An n-butenyl amine is produced by reacting 1,3-butadiene in a shape of a 1,3-butadiene-containing mixture obtained when cracking a petroleum fragment, or when dehydrogenating LPG or LNG, or obtained by a GTL (gas to liquid) technique, with a primary amine and/or a secondary amine under a hydroamination condition, and the provided butenylamine(s) is reacted with hydrogen under an alkyl-exchanging reaction condition at the second process step to provide the objective n-butylamines.

    4.
    发明专利
    未知

    公开(公告)号：DE19723949A1

    公开(公告)日：1998-12-10

    申请号：DE19723949

    申请日：1997-06-06

    Applicant: BASF AG

    Inventor： GROSCH GEORG HEINRICH DR ,  MUELLER ULRICH DR ,  WALCH ANDREAS DR ,  RIEBER NORBERT DR ,  HARDER WOLFGANG DR

    IPC: B01J29/90 ,  B01J38/12 ,  B01J38/20 ,  C07B41/00 ,  C07C29/48 ,  C07C45/27 ,  C07C51/265 ,  C07D301/12

    Abstract: The invention relates to a method for regenerating a zeolitic catalyst, comprising the following steps: (I) at least one partially deactivated catalyst is heated to a temperature ranging from 250 to 600 DEG C in an atmosphere containing less than 2 vol. % oxygen; (II) the catalyst is impinged upon by a gas flow at a temperature ranging from 250 to 800 DEG C, preferably 350 to 600 DEG C, said gas flow having an oxygen-delivering substance content or an oxygen content or a mixture of two or more thereof ranging from 0.1 to 4 vol. % and (III) the catalyst is impinged upon by a gas flow at a temperature ranging from 250 to 800 DEG C, preferably 350 to 600 DEG C, said gas flow having an oxygen-delivering substance content or an oxygen content or a mixture of two or more thereof ranging from over 4 to 100 vol. %.

    7.
    发明专利
    未知

    公开(公告)号：DE19634157A1

    公开(公告)日：1998-02-26

    申请号：DE19634157

    申请日：1996-08-23

    Applicant: BASF AG

    Inventor： JULIUS MANFRED DR ,  HERMELING DIETER DR ,  SIEGEL HARDO DR ,  HARDER WOLFGANG DR

    IPC: B01J31/02 ,  C07B61/00 ,  C07D211/74

    Abstract: Preparation of 2,2,6,6-tetramethylpiperidin-4-one (TAA) comprises reacting a mixture of acetone and/or acetone condensate and ammonia (NH3) in (20-3):1 molar ratio at 50-130 degrees C in the presence of 0.5-5 mole-% dimethyl sulphate (DMS) w.r.t. acetone. Preferably the molar ratio of acetone and/or acetone condensate to NH3 is (10-3):1. The reaction is carried out continuously and the reaction mixture is in liquid form. The acetone condensate is mesityl oxide, diacetone alcohol, diacetone-amine, acetonine or phorone.

Patent Agency Ranking