中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

373 records (took 0.02 seconds)

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

    公开(公告)号：JPH1180065A

    公开(公告)日：1999-03-23

    申请号：JP19270198

    申请日：1998-07-08

    Applicant: BASF AG

    Inventor： FISCHER ROLF DR ,  LIANG SHELUE DR ,  SCHWAB EKKEHARD ,  WULFF-DOERING JOACHIM DR ,  STERZEL HANS-JOSEF DR

    IPC: B01J23/14 ,  B01J23/26 ,  B01J23/34 ,  B01J23/745 ,  C07B61/00 ,  C07C45/41 ,  C07C47/02

    Abstract: PROBLEM TO BE SOLVED: To produce a carried catalyst used for converting a carboxylic acid or its ester into an aldehyde by a selective hydrogenation reaction, having reasonable stability, capable of being regenerated, hardly or quite not forming a by-product, having at least comparable selectivity with the corresponding non-carried catalyst. SOLUTION: This method for producing an aldehyde of formula I (R is an aliphatic, alicyclic, aromatic or aromatic aliphatic group which may be substituted, if necessary, with one or more substituents and/or if necessary, may have more heterogeneous atom) comprises selectively hydrogenating an acid of the formula: R-COOH or an ester of the acid with a 1-10C alcohol with hydrogen in the presence of a metal oxide catalyst in a gaseous phase. Therein, the hydrogenation is carried out in the presence of the carried catalyst containing a metal oxide suitable for the selective hydrogenation of the carboxylic acid or the carboxylate ester as an essential catalyst on SiC (silicon carbide) as a carrier at a temperature of 150-450 deg.C under a pressure of 0.1-150 bars.

    PRODUCTION OF ALDEHYDE
    2.
    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.

    Verfahren zur Herstellung von 4-Pentensäureestern.
    4.
    发明公开
    Verfahren zur Herstellung von 4-Pentensäureestern. 失效
    一种用于4-戊烯酸酯的制备方法。

    公开(公告)号：EP0206142A1

    公开(公告)日：1986-12-30

    申请号：EP86108022

    申请日：1986-06-12

    Applicant: BASF AG

    Inventor： HOELDERICH WOLFGANG DR ,  FISCHER ROLF DR ,  MALSCH KLAUS-DIETER DR ,  LENDLE HUBERT DR

    IPC: C07C69/155 ,  B01J29/00 ,  C07B61/00 ,  C07C67/333 ,  C07C69/52 ,  C07C69/533

    CPC classification number: C07C67/333 ,  C07C69/533

    Abstract: Verfahren zur Herstellung von 4-Pentensäureestern durch Isomerisierung, wobei man isomere Pentensäureester bei erhöhter Temperatur in Gegenwart von Zeolithen mit einem Gehalt an Metallen der achten Gruppe des Periodischen Systems behandelt und 4-Pentensäureester aus dem Reaktionsgemisch abdestilliert und die Zeolithe einen Gehalt an Eisen, Cobalt und/oder Nickel haben.

    Abstract translation: 一种用于通过异构化制备的4-戊烯酸酯处理，得到同分异构的戊烯酸酯在升高的温度下在沸石的存在下用第八组周期表中的金属的含量处理，并从反应混合物中蒸馏4-戊酯和沸石具有的铁，钴含量 和/或镍有。

    Verfahren zur kontinuierlichen Abscheidung von Maleinsäureanhydrid aus gasförmigen Reaktionsgemischen.
    5.
    发明公开
    Verfahren zur kontinuierlichen Abscheidung von Maleinsäureanhydrid aus gasförmigen Reaktionsgemischen. 失效
    一种用于马来酸酐从气态反应混合物中连续分离过程。

    公开(公告)号：EP0206194A2

    公开(公告)日：1986-12-30

    申请号：EP86108180

    申请日：1986-06-14

    Applicant: BASF AG

    Inventor： MALSCH KLAUS-DIETER DR ,  FISCHER ROLF DR ,  SCHNABEL ROLF DR

    IPC: C07D307/60 ,  C07C51/573

    CPC classification number: C07C51/573 ,  C07C57/145

    Abstract: Verfahren zur kontinuierlichen Abscheidung von Maleinsäureanhydrid aus gasförmigen Reaktionsgemischen, bei dem man das das Maleinsäureanhydrid enthaltende gasförmige Reaktionsgemisch mit einem Butanol in Kontakt bringt, die dabei anfallenden gasförmigen Stoffe im Gegenstrom mit einem Bernstein- oder Fumarsäuredibutylester in Berührung bringt und das flüssige Verfahrensprodukt dem Sumpf entnimmt.

    Abstract translation: 1.一种用于连续地从在烃的催化氧化而得到的气态反应混合物通过处理所述气态反应混合物与溶剂，该方法包括将气态反应混合物其中含有马来酸酐与琥珀酸二丁酯或接触分离马来酸酐过程 富马酸盐在逆流，并除去从底部产物中的液体产物。

    Process for simultaneously preparing caprolactam and hexamethylenediamine
    6.
    发明专利
    Process for simultaneously preparing caprolactam and hexamethylenediamine 未知

    公开(公告)号：CZ289886B6

    公开(公告)日：2002-04-17

    申请号：CZ202797

    申请日：1995-12-22

    Applicant: BASF AG

    Inventor： ACHHAMMER GUNTHER DR ,  BASSLER PETER DR ,  FISCHER ROLF DR ,  FUCHS EBERHARD DR ,  LUYKEN HERMANN ,  SCHNURR WERNER DR ,  WITZEL TOM DR

    IPC: C07D201/02 ,  C07C209/48 ,  C07C211/12 ,  C07D201/08 ,  C07D223/10

    Abstract: Disclosed is a process for simultaneously preparing caprolactam and hexamethylenediamine from adiponitrile. The invented preparation process is characterized by (a) partial hydrogenation of adiponitrile, (b) subjecting the obtained mixture to distillation to obtain a portion of ammonia as a top product and a heavy fraction I, whereby distillation is carried out in the presence of an inert compound A, (c) subjecting the heavy fraction I to a second distillation to obtain a mixture of the inert compound A and ammonia as a top product and a heavy fraction II, (d) subjecting the heavy fraction II to another distillation to obtain the inert compound A as a top product and a heavy fraction III, whereby the distillation is optionally carried out in the presence of a compound B, (e) subjecting the heavy fraction to distillation to obtain a top product KP1 and a heavy fraction IV, (f) subjecting the KP1 top to distillation to obtain a top product KP2 and a heavy fraction V, whereby the se KP2 top product is supplied at least partially to a third column and the residue is discharged, and (g) subjecting the heavy fraction IV to distillation in order to obtain 6-aminocapronitrile as a top product with adiponitrile at the column bottom, and so obtained 6-aminocapronitrile is then recycled to caprolactam.

    Continuous purification process of raw caprolactam prepared from 6-aminocapronitrile
    7.
    发明专利
    Continuous purification process of raw caprolactam prepared from 6-aminocapronitrile 未知

    公开(公告)号：CZ288217B6

    公开(公告)日：2001-05-16

    申请号：CZ197297

    申请日：1995-12-22

    Applicant: BASF AG

    Inventor： RITZ JOSEF DR ,  FISCHER ROLF DR ,  SCHNURR WERNER DR ,  ACHHAMMER GUENTER DR ,  LUYKEN HERMANN DR ,  FUCHS EBERHARD DR

    IPC: C07D201/08 ,  C07B63/02 ,  C07D201/16

    Abstract: The invented continuous purification process of raw caprolactam by hydrogenation followed by subsequent treatment in acid environment and then by distillation in alkaline medium is characterized by (a) converting 6-aminocapronitrile by reaction thereof with water to raw caprolactam, (b) separating high- and low-boiling components from the raw caprolactam of the stage (a), (c) treating the raw caprolactam obtained in the stage (b) with hydrogen at a temperature ranging from 50 to 150 degC and pressure in the range of 0.15 to 2.5 MPa in the presence of a hydrogenation catalyst and a required solvent and so obtaining a mixture A, (d1) conducting the mixture A in the solvent and at a temperature ranging from 30 to 80 degC and pressure in the range of 0.1 to 0.5 MPa through an ion exchanger containing acid terminal groups and to thereby obtaining a mixture B1 or (d2) distilling the mixture A in the presence of sulfuric acid, whereby prior addition of sulfuric acid the solvent being present can be removed and to thereby obtaining a mixture B2 and (e) distilling the mixture B1 or the mixture B2 in the presence of a base to thereby obtaining raw caprolactam.

Patent Agency Ranking