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    PRODUCTION OF ALDEHYDE
    1.
    发明专利
    PRODUCTION OF ALDEHYDE 失效

    公开(公告)号：JPH10298129A

    公开(公告)日：1998-11-10

    申请号：JP3597798

    申请日：1998-02-18

    Applicant: BASF AG

    Inventor： FISCHER ROLF DR ,  SCHNURR WERNER DR ,  WULFF-DOERING JOACHIM DR ,  MERGER MARTIN DR

    IPC: C07D307/12 ,  B01J23/10 ,  C07B41/06 ,  C07B61/00 ,  C07C45/41 ,  C07C47/02 ,  C07D309/06 ,  C07D309/08

    Abstract: PROBLEM TO BE SOLVED: To provide a method for industrially efficiently and continuously producing an aldehyde by hydrogenating an ester, while recycling the unused hydrogen and the unreacted ester, wherein the selectivity of the aldehyde is maintained at a satisfactory level. SOLUTION: This method for producing an aldehyde of the formula: R-CHO comprises hydrogenating an ester of the formula: R-COOR' (R is a non- substituted or substituted aliphatic group, alicyclic group, aromatic group or aralkyl group; R' is a group derived from a 1-10C alcohol] with excessive hydrogen in an amount of 2-200 moles per mole of the ester in the presence of a heterogeneous hydrogenation catalyst at 200-450 deg.C in a gas phase, while recycling the unreacted hydrogen and the unreacted ester. Therein, the alcohol is removed from the recycling flow in such an extent as the initial concentration of the produced alcohol: R'-OH in the reaction mixture is maximally 1 mole per mole of the carboxylic acid ester II.

    2.
    发明专利
    未知

    公开(公告)号：AT287869T

    公开(公告)日：2005-02-15

    申请号：AT01125324

    申请日：2001-10-26

    Applicant: BASF AG

    Inventor： ANSMANN ANDREAS DR ,  BENISCH CHRISTOPH DR ,  FUNKE FRANK DR ,  OHLBACH FRANK DR ,  MERGER MARTIN DR

    IPC: C07D295/12 ,  B01J25/00 ,  B01J25/02 ,  B01J35/04 ,  B01J35/10 ,  B01J37/00 ,  C07B61/00 ,  C07C209/48 ,  C07C211/14 ,  C07C211/35 ,  C07C211/36 ,  C07D295/13

    Abstract: Nitrite is hydrogenated to primary amine using an activated macroporous Raney catalyst comprising alpha -alumina and transition metal(s), obtained by (i) shaping kneadable composition comprising an alloy, a shaping aid, water and a pore former, (ii) calcining and activating by treating with aqueous alkali metal hydroxide solution and (iii) rinsing with aqueous alkali metal hydroxide solution and water. Hydrogenating nitrite to primary amine involves using activated macroporous Raney catalyst comprising alpha -alumina and transition metal(s), such as iron, cobalt, nickel, titanium, zirconium, chromium and manganese. The Raney catalyst is obtained by preparing a kneadable composition comprising an alloy, a shaping aid, water and a pore former, which is then shaped to form a component. The shaped component is calcined and activated by treating with aqueous alkali metal hydroxide solution. The catalyst obtained is rinsed with aqueous alkali metal hydroxide solution and water. Independent claims are also included for the following: (1) a macroporous Raney catalyst; and (2) the production of a macroporous Raney catalyst.

    Production of aliphatic alpha ,w-amino-nitrile compounds
    7.
    发明专利
    Production of aliphatic alpha ,w-amino-nitrile compounds 未知

    公开(公告)号：DE19742221A1

    公开(公告)日：1999-03-25

    申请号：DE19742221

    申请日：1997-09-24

    Applicant: BASF AG

    Inventor： VOIT GUIDO DR ,  BOHNSACK ANDREAS DR ,  FISCHER ROLF DR ,  BASLER PETER DR ,  LUYKEN HERMANN ,  MERGER MARTIN DR ,  FLICK KLEMENS DR

    IPC: B01J23/745 ,  C07B61/00 ,  C07C253/30 ,  B01J23/78 ,  C07C255/24 ,  C07C255/26

    Abstract: Aliphatic alpha ,w-dinitriles with a phosphorus content of 1.0 ppm or more by weight (ppm wt.) are used for the production of alpha ,w-aminonitriles by partial hydrogenation in presence of a special iron-based catalyst containing a promoter based on aluminium, silicon, zirconium, titanium and/or vanadium. A process for the production of aliphatic alpha ,w-aminonitriles comprises the partial hydrogenation of corresponding dinitriles with a phosphorus content of 1.0 ppm wt. or more in presence of a catalyst containing (a) iron and/or an iron compound, (b) 0.01-5 wt% (based on a) of a promoter based on 2, 3, 4 or 5 elements selected from Al, Si, Zr, Ti and V, and (c) 0-0.5 wt% of an alkali or alkaline earth metal compound. An Independent claim is also included for catalysts with the above composition obtained by the reduction and optional passivation of magnetite, showing a BET surface of 3-10 m /g, a total pore volume of 0.05-0.2 ml/g and an average pore diameter of 0.03-0.1 micron, with 50-70% (by volume) of the pores in the range from 0.01 to 0.1 microns.

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