中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

103 records (took 0.022 seconds)

    Manufacturing process for 6-aminocapronitrile
    34.
    发明专利
    Manufacturing process for 6-aminocapronitrile 未知

    公开(公告)号：AU4377697A

    公开(公告)日：1998-02-25

    申请号：AU4377697

    申请日：1997-07-23

    Applicant: BASF AG

    Inventor： FISCHER ROLF ,  PACIELLO ROCCO ,  ROPER MICHAEL ,  SCHNURR WERNER

    IPC: B01J31/18 ,  B01J31/24 ,  C07C209/26 ,  C07C253/30 ,  C07C255/24 ,  C07F9/6574

    Abstract: PCT No. PCT/EP97/03988 Sec. 371 Date Feb. 1, 1999 Sec. 102(e) Date Feb. 1, 1999 PCT Filed Jul. 23, 1997 PCT Pub. No. WO98/05632 PCT Pub. Date Feb. 12, 1998Manufacture of 6-aminocapronitrile or 6-aminocapronitrile/hexamethylene diamine mixtures, involving a) the reaction of at least one pentennitrile, selected from the group consisting of 2,3 and 4-pentennitrile with carbon monoxide and hydrogen in the presence of catalysts, which contain at least one element of the eighth subgroup as active components, obtaining a hydrogenation formylating discharge (I), b) the optional separation of carbon monoxide, hydrogen and the catalyst from the hydrogenation formylating discharge (I), obtaining a hydrogenation formylating discharge (II), c) the separation of 5-formyl valeronitrile from the hydrogenation formylating discharge (I) or (II), d) the reaction of separated 5-formyl valeronitrile with ammonia and hydrogen in the presence of hydrogenating catalysts, selected from the group consisting of rhenium, copper and its compounds as well as metals and metallic compounds of the eighth group, obtaining a hydrogenation discharge, and e) obtaining 6-aminocapronitrile and if necessary hexamethylene diamine.

    Process for the continuous preparation of pure 5-formyl valeric acid esters
    35.
    发明专利
    Process for the continuous preparation of pure 5-formyl valeric acid esters 未知

    公开(公告)号：AU6787296A

    公开(公告)日：1997-03-05

    申请号：AU6787296

    申请日：1996-07-26

    Applicant: BASF AG

    Inventor： ACHHAMMER GUNTHER ,  ROPER MICHAEL

    IPC: C07C67/54 ,  C07C69/716

    Abstract: PCT No. PCT/EP96/03290 Sec. 371 Date Jan. 27, 1998 Sec. 102(e) Date Jan. 27, 1998 PCT Filed Jul. 26, 1996 PCT Pub. No. WO97/06126 PCT Pub. Date Feb. 20, 19975-Formylvaleric esters are prepared in a yield of not less than 90% by distillation of a formylvaleric ester mixture of 5-formylvaleric ester and either 3- or 4-formylvaleric ester or a mixture of 3- and 4-formylvaleric esters, where the ester radicals of the respective formylvaleric esters are identical, wherein the 3- or 4-formylvaleric ester or a mixture thereof is separated from the 5-formylvaleric ester in a distillation column at a pressure in the range from 2 to 100 mbar and a temperature of not above 150 DEG C. (measured as the temperature at the bottom of the column) and the esters used are the corresponding methyl or ethyl esters, where the purity of the 5-formylvaleric ester is not less than 98% and, as impurity, 4-formylvaleric ester is present in an amount of not more than 100 ppm.

    PROCESS FOR PRODUCING N- BUTYRALDEHYDE AND / OR N- BUTANOL
    36.
    发明专利
    PROCESS FOR PRODUCING N- BUTYRALDEHYDE AND / OR N- BUTANOL 未知

    公开(公告)号：MY123728A

    公开(公告)日：2006-05-31

    申请号：MYPI9600134

    申请日：1996-01-13

    Applicant: BASF AG

    Inventor： THOME ALFRED ,  KANAND JURGEN ,  ROPER MICHAEL ,  PACIELLO ROCCO

    IPC: C07C29/00

    Abstract: A PROCESS FOR PREPARATION OF N-BUTYRALDEHYDE AND/OR N-BUTANOL, IN WHICH A) 1,3-BUTADIENE IS CAUSED TO REACT WITH AN AMINE OF THE FORMULA &Igr;, IN WHICH R¹ AND R² INDEPENDENTLY DENOTE HYDROGEN, OPTIONALLY SUBSTITUTED ALIPHATIC OR CYCLOALIPHATIC RADICALS, OR ARYL OR ARALKYL RADICALS OR ARE LINKED TO FORM A BRIDGING MEMBER CONTAINING THE HETERO ATOM, AT ELEVATED TEMPERATURE AND UNDER SUPERATMOSPHERIC PRESSURE IN THE PRESENCE OF A COMPOUND OF A GROUP V&Igr;&Igr;&Igr;B ELEMENT AND IN THE PRESENCE OF AN ALKALI METAL AMIDE OR A BASIC METAL OXIDE TO FORM A MIXTURE OF THE ADDUCTS OF THE FORMULA &Igr;&Igr; (FORMULA &Igr;&Igr;, &Igr;&Igr;&Igr;)B) THE ADDUCT &Igr;&Igr;&Igr; IS ISOMERIZED TO THE ADDUCT &Igr;&Igr;,C) THE ADDUCT &Igr;&Igr; IS ISOMERIZED IN THE PRESENCE OF A HOMOGENEOUS OR HETEROGENEOUS TRANSITION METAL ELEMENT CATALYST IN THE LIQUID PHASE OR IN THE PRESENCE OF A HETEROGENEOUS CATALYST CONTAINING A TRANSITION METAL ELEMENT IN THE GASEOUS PHASE TO FORM THE ENAMINE OF THE FORMULA &Igr;V(FORMULA &Igr;V)AND D) N-BUTYRALDEHYDE AND/OR N-BUTANOL IS/ARE PRODUCED FROM THIS ENAMINE &Igr;V BY THE REACTION THEREOF WITH HYDROGEN AND WATER ONLY IN THE PRESENCE OF A HOMOGENEOUS OR HETEROGENEOUS TRANSITION METAL ELEMENT CATALYST IN THE LIQUID PHASE OR IN THE PRESENCE OF A HETEROGENOUS TRANSITION METAL ELEMENT CATALYST IN THE GASEOUS PHASE AND IN THE PRESENCE OF AN ACID OR IN PRESENCE OF ONE OF SAID CATALYST AND AN ACID, AND THE AMINE &Igr; IS LIBERATED, AND THE LIBERATED AMINE &Igr; IS RECYCLED TO THE STAGE DEFINED ABOVE AS PARTIAL REACTION A).

Patent Agency Ranking