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341 条记录 (耗时 0.016 秒)

    Acid resistant catalyst supports; reduction of fatty acids to fatty alcohols
    122.
    发明授权
    Acid resistant catalyst supports; reduction of fatty acids to fatty alcohols 失效
    耐酸催化剂载体; 脂肪酸还原成脂肪醇

    公开(公告)号：US4524225A

    公开(公告)日：1985-06-18

    申请号：US561491

    申请日：1983-12-14

    申请人： Gail M. Qualeatti ,  Bruce I. Rosen ,  Blaise J. Arena ,  Dalia Germanas

    发明人： Gail M. Qualeatti ,  Bruce I. Rosen ,  Blaise J. Arena ,  Dalia Germanas

    IPC分类号： C07C29/149 ,  C07C27/04

    CPC分类号： C07C29/149

    摘要： Several materials, suitable as carriers or supports for zerovalent metals dispersed thereon have been found to be appreciably more corrosion resistant in the environment of organic acids than are conventional supports, among which are included alpha-alumina, theta-alumina, titanated alumina, titania, and aluminum phosphate. The discovery of such corrosion resistant supports permits a continuous process for the hydrogenation of a fatty acid to its fatty alcohol using a fixed catalyst bed of a zerovalent metal dispersed on a carrier of this invention.

    摘要翻译： 已经发现，适合作为分散在其上的零价金属的载体或载体的几种材料在有机酸的环境中比常规载体具有显着更高的耐腐蚀性，其中包括α-氧化铝，θ-氧化铝，钛酸化氧化铝，二氧化钛， 和磷酸铝。 这种耐腐蚀载体的发现允许使用分散在本发明的载体上的零价金属的固定催化剂床将脂肪酸氢化成其脂肪醇的连续方法。

    Cyclohexane oxidation in the presence of binary catalysts
    124.
    发明授权
    Cyclohexane oxidation in the presence of binary catalysts 失效
    二元催化剂存在下的环己烷氧化

    公开(公告)号：US3987100A

    公开(公告)日：1976-10-19

    申请号：US459936

    申请日：1974-04-11

    申请人： Willie Jon Barnette ,  Donald Leo Schmitt ,  Jesse Oris White

    发明人： Willie Jon Barnette ,  Donald Leo Schmitt ,  Jesse Oris White

    IPC分类号： C07C27/00 ,  B01J31/00 ,  C07B61/00 ,  C07C27/12 ,  C07C29/132 ,  C07C29/50 ,  C07C35/08 ,  C07C45/00 ,  C07C49/403 ,  C07C51/31 ,  C07C67/00 ,  C07C45/02 ,  C07C27/04

    CPC分类号： C07C51/313

    摘要： The process of oxidizing cyclohexane to produce cyclohexanone and cyclohexanol in the weight ratio of 0.5 to 1.5 of cyclohexanone to cyclohexanol, said process comprising contacting a stream of liquid cyclohexane with oxygen in each of at least three successive oxidation stages by introducing into each stage a mixture of gases comprising molecular oxygen and inert gas, said oxygen being introduced in amounts that may range from an amount that will substantially all react with the cyclohexane under the particular conditions involved to an amount in excess of the amount required to react with the cyclohexane, said excess being such that the overall oxygen consumed in the oxidation zone is not more than 95 mole percent of the amount fed under the particular conditions involved, in the presence of a binary catalyst system comprising 0.02 to 0.9 ppm chromium and 0.1 to 5 ppm cobalt at a temperature of from 130.degree. to 200.degree. C. and a pressure of from 60 to 350 psig, reacting any cyclohexylhydroperoxide that may be formed in the presence of said binary catalyst system and recovering a product of cyclohexanone and cyclohexanol in the above ratio.

    Process for preparing cycloalkanones and cycloalkanols
    125.
    发明授权
    Process for preparing cycloalkanones and cycloalkanols 失效
    制备环烷酮和环烷醇的方法

    公开(公告)号：US3941845A

    公开(公告)日：1976-03-02

    申请号：US408049

    申请日：1973-10-19

    申请人： Willem Voskuil ,  Joseph J. M. VAN DER Donck

    发明人： Willem Voskuil ,  Joseph J. M. VAN DER Donck

    IPC分类号： B01J23/26 ,  B01J23/72 ,  B01J23/86 ,  C07C45/53 ,  C07C27/04 ,  C07C29/00 ,  C07C45/00

    CPC分类号： C07C45/53 ,  B01J23/26 ,  B01J23/72 ,  B01J23/868

    摘要： Cycloalkanones and cycloalkanols can be prepared by conversion of cycloalkylhydroperoxides in solution in a suitable solvent, under the influence of a solid catalyst, Solution and catalyst form a heterogeneous system. For this purpose, a number of catalysts have been proposed, but the known processes have serious draw backs with respect to efficiency of the process, catalyst cost and/or alcohol to ketone ratio obtained.According to the invention, cycloalkanones and cycloalkanols are prepared by conversion of cycloalkylhydroperoxides having 5-12 carbon atoms in the ring under the influence of a heterogeneous catalyst comprising copper oxide, at a temperature below 160.degree.C. Preferably, copper - chromium - oxide is applied as a catalyst.

    摘要翻译： 环烷烃和环烷醇可以通过将溶剂中的环烷基氢过氧化物在合适的溶剂中，在固体催化剂溶液和催化剂形成异构体系的影响下转化来制备。 为此，已经提出了许多催化剂，但是已知的方法在所获得的方法效率，催化剂成本和/或醇与酮比方面具有严重的回缩。