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59 条记录 (耗时 0.012 秒)

    Radial flow catalyst reactor
    11.
    发明授权
    Radial flow catalyst reactor 失效
    径流式催化反应器

    公开(公告)号：US3620685A

    公开(公告)日：1971-11-16

    申请号：US3620685D

    申请日：1969-07-30

    申请人： PHILLIPS PETROLEUM CO

    发明人： ROGERS RONALD S ,  PROCTOR OLIVER P

    IPC分类号： B01J8/02 ,  B01J8/04 ,  B01J9/04 ,  C07B3/00

    CPC分类号： B01J8/0411 ,  B01J8/0214

    摘要： A radial flow catalyst reactor designed to provide maximum area of exposure of catalyst to a fluid feed while yet providing for rapid removal of effluent of the reaction from the reactor. For larger reactors, an internal space-occupying thumb reduces fluidflow space and increases the rapidity of escape of the effluent. The reactor and catalyst cases are designed to allow for overfill to permit settling of catalyst particles in the cases without bypassing of the catalyst.

    Niobium or tantalum catalysts for the preparation of ethylenimine
    18.
    发明授权
    Niobium or tantalum catalysts for the preparation of ethylenimine 失效
    用于制备乙烯亚胺的铌或钽催化剂

    公开(公告)号：US4376732A

    公开(公告)日：1983-03-15

    申请号：US281611

    申请日：1981-07-09

    申请人： Enrique G. Ramirez

    发明人： Enrique G. Ramirez

    IPC分类号： B01J23/20 ,  C07B3/00 ,  C07B5/02 ,  C07D241/12

    CPC分类号： B01J23/20

    摘要： An improved catalyst suitable for the dehydration of an alkanolamine in the vapor phase to produce an alkylenimine which catalyst contains an oxide of niobium or tantalum. Optionally an alkaline earth oxide is employed as a promoter. The catalyst is generally used on an inert low surface area support at a concentration of less than 5% of the tantalum or niobium oxide and less than 0.5% of the promoter oxide.

    摘要翻译： 一种改进的催化剂，适用于气相中链烷醇胺的脱水，生成亚烷基亚胺，该催化剂含有铌或钽的氧化物。 任选地，使用碱土金属氧化物作为助催化剂。 催化剂通常用于惰性低表面积载体上，浓度小于钽或铌氧化物的5％，并且小于0.5％的助催化剂氧化物。

    Highly selective oxidizing process for preparing pyridin-carboxylic acids
    19.
    发明授权
    Highly selective oxidizing process for preparing pyridin-carboxylic acids 失效
    用于制备吡啶羧酸的高选择性氧化方法

    公开(公告)号：US4217457A

    公开(公告)日：1980-08-12

    申请号：US924619

    申请日：1978-07-14

    申请人： Giovanni Ghelli

    发明人： Giovanni Ghelli

    IPC分类号： C07D213/807 ,  C07D213/79 ,  C07D213/803 ,  C07B3/00 ,  C07D213/80

    CPC分类号： C07D213/803

    摘要： A highly selective oxidation process for preparing pyridin-carboxylic acids from pyridine compounds nucleus substituted with alkyl groups, through a carbon-carbon bond, and oxidizable to carboxyl, and from hydrosoluble hexavalent chromium compounds, in the presence of an acid.Particularly described is the oxidation of beta-picoline with sodium bichromate to obtain the sodium salt of nicotinic acid and 99.5% pure free acid, respectively.

    摘要翻译： 在酸的存在下，通过碳 - 碳键，可氧化成羧基和水溶性六价铬化合物从吡啶化合物核制备吡啶羧酸的高选择性氧化方法。 特别描述的是用重铬酸钠氧化β-甲基吡啶，分别得到烟酸的钠盐和99.5％的纯游离酸。

    Dehydrogenation method
    20.
    发明授权
    Dehydrogenation method 失效
    脱氢法

    公开(公告)号：US4104317A

    公开(公告)日：1978-08-01

    申请号：US775079

    申请日：1977-03-07

    申请人： George J. Antos

    发明人： George J. Antos

    IPC分类号： B01J23/656 ,  C07C5/32 ,  C07C5/333 ,  C07C5/367 ,  C07C15/00 ,  C07B3/00

    CPC分类号： C07C5/3337 ,  B01J23/6567 ,  C07C5/325 ,  C07C5/367 ,  C07C2521/04 ,  C07C2523/02 ,  C07C2523/04 ,  C07C2523/36 ,  C07C2523/42 ,  C07C2523/44 ,  C07C2523/656 ,  Y02P20/52

    摘要： Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, and a rhenium component with a porous carrier material. A specific example of the nonacidic catalytic composite disclosed herein is a combination of a platinum or palladium component, a rhodium component, a rhenium component, and an alkali or alkaline earth component with a porous carrier material in amounts sufficient to result in a composite containing about 0.01 to about 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, about 0.01 to about 2 wt. % rhenium and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal. A preferred modifying component for the disclosed catalytic composites is a sulfiding reagent.

    摘要翻译： 可脱氢烃通过在脱氢条件下与包含催化有效量的铂或钯组分，铑组分和铼组分的组合的催化复合物与多孔载体材料接触而脱氢。 本文公开的非酸催化复合物的具体实例是铂或钯组分，铑组分，铼组分和碱金属或碱土金属组分与多孔载体材料的组合，其量足以导致含有约 0.01至约2wt。 ％铂或钯，约0.01至约2重量％ ％铑，约0.01至约2wt。 ％铼和约0.1至约5wt。 ％碱金属或碱土金属。 所公开的催化复合材料的优选改性组分是硫化试剂。