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227 条记录 (耗时 0.04 秒)

    Passivation of metal contaminated cracking catalysts
    4.
    发明授权
    Passivation of metal contaminated cracking catalysts 失效

    公开(公告)号：US4939109A

    公开(公告)日：1990-07-03

    申请号：US907767

    申请日：1986-09-15

    申请人： Marvin M. Johnson ,  Donald C. Tabler

    发明人： Marvin M. Johnson ,  Donald C. Tabler

    IPC分类号： B01J38/00 ,  B01J23/16 ,  B01J31/02 ,  B01J38/48 ,  C10G11/02 ,  C10G11/04 ,  C10G29/06 ,  C10G29/16

    CPC分类号： B01J38/48 ,  C10G11/04 ,  Y10S502/521

    摘要： This invention comprises improvements to processes for the catalytic cracking of hydrocarbon feedstocks. One such improvement to catalytic cracking processes provides compositions comprising metals passivating agents having an increased degree of stability. These compositions comprise aqueous suspensions of antimony by vinyl copolymers, aqueous suspensions of antimony oxide by diesters of phosphoric acid, or aqueous suspensions of antimony oxide by cellulose derivatives. Another improvement to catalytic cracking processes provides a process for reducing the viscosity of liquid suspensions of metals passivating agents without substantially reducing the stability of the liquid suspension by the utilization of at least two different particle ranges of metals passivating agents. A further improvement to catalytic cracking processes provides an efficient utilization of metals passivating agents by introducing the selected agent into the catalyst regeneration cycle of a catalytic cracking unit.

    Purification and hydrogenation of furan concentrates
    7.
    发明授权
    Purification and hydrogenation of furan concentrates 失效
    呋喃浓缩物的纯化和氢化

    公开(公告)号：US3994931A

    公开(公告)日：1976-11-30

    申请号：US547941

    申请日：1975-02-07

    申请人： Marvin M. Johnson ,  Donald C. Tabler

    发明人： Marvin M. Johnson ,  Donald C. Tabler

    IPC分类号： C07D307/36 ,  C07D307/02

    CPC分类号： C07D307/36

    摘要： Furan concentrates containing deleterious unsaturated contaminants including sulfur compounds are purified prior to hydrogenation by contacting with zinc oxide either prior to or subsequent to separation of high boiling materials from the concentrate with the result that the furan concentrate is hydrogenated to high purity product comprising either furan and saturated materials or tetrahydrofuran and saturated materials with extended hydrogenation catalyst life. In a preferred embodiment, the furan concentrate is obtained as the by-product stream from hydrocarbon oxidative dehydrogenation processes and is subjected to distillation to remove therefrom materials boiling above about 80.degree. C prior to contacting with zinc oxide and hydrogenation.

    摘要翻译： 含有有害的不饱和污染物（包括硫化合物）的呋喃浓缩物在氢化之前通过与浓缩物分离高沸点物质之前或之后与氧化锌接触进行纯化，结果将呋喃浓缩物氢化成高纯度产物，其包含呋喃和 饱和材料或四氢呋喃和饱和材料，延长氢化催化剂寿命。 在优选的实施方案中，从烃类氧化脱氢方法获得作为副产物流的呋喃浓缩物，并在与氧化锌接触和氢化之前，将沸点高于约80℃的物质进行蒸馏除去。

    Separation of monoolefins from diolefins
    8.
    发明授权
    Separation of monoolefins from diolefins 失效
    单烯烃与二烯烃的分离

    公开(公告)号：US4400564A

    公开(公告)日：1983-08-23

    申请号：US140283

    申请日：1980-04-14

    申请人： Marvin M. Johnson ,  Donald C. Tabler

    发明人： Marvin M. Johnson ,  Donald C. Tabler

    IPC分类号： C07C7/156 ,  C07C7/148

    CPC分类号： C07C7/156 ,  Y02P20/582

    摘要： A process and apparatus for separating monoolefins from diolefins comprising contacting a mixture of monoolefins and diolefins with a complexing agent selected from the group consisting of copper(I) salts of sulfonic acids and copper(I) salts of dialkylphosphates and a suitable hydrocarbon solvent for the complexing agent under such conditions that the monoolefins and diolefins form complexes with the complexing agent. The monoolefin complex can be separated from the diolefin complex based either on the relative solubilities of the two complexes in the hydrocarbon solvent for the complexing agent or based on the relative strengths of the two complexes.

    摘要翻译： 一种用于从二烯烃分离单烯烃的方法和装置，包括使单烯烃和二烯烃的混合物与选自以下的络合剂接触：选自由磺酸的铜（I）盐和磷酸二烷基酯的铜（I）盐和适用的烃溶剂， 络合剂在单烯烃和二烯烃与络合剂形成络合物的条件下。 可以基于两种络合物在用于络合剂的烃溶剂中的相对溶解度或基于两种络合物的相对强度，将二烯烃络合物与二烯烃络合物分离。

    Oxidative dehydrogenation catalysts
    10.
    发明授权
    Oxidative dehydrogenation catalysts 失效
    氧化脱氢催化剂

    公开(公告)号：US4039476A

    公开(公告)日：1977-08-02

    申请号：US582571

    申请日：1975-05-30

    申请人： Brent J. Bertus ,  Donald C. Tabler ,  Marvin M. Johnson

    发明人： Brent J. Bertus ,  Donald C. Tabler ,  Marvin M. Johnson

    IPC分类号： B01J23/882 ,  B01J27/19 ,  C07D307/36 ,  B01J27/14

    CPC分类号： B01J27/19 ,  B01J23/882 ,  C07D307/36

    摘要： Alkenes and/or alkadienes are contacted with molecular oxygen and an oxidative dehydrogenation catalyst consisting essentially of phosphorus, molybdenum, cobalt and oxygen, wherein the atom ratio of phosphorus to molybdenum is in the range of about 0.5:1 to about 5:1 and the atom ratio of cobalt to molybdenum is in the range of about 0.1:1 to about 3:1, to produce furan compounds.

    摘要翻译： 烯烃和/或链烯二烯与分子氧和基本上由磷，钼，钴和氧组成的氧化脱氢催化剂接触，其中磷与钼的原子比在约0.5:1至约5:1的范围内， 钴与钼的原子比在约0.1:1至约3:1的范围内，以产生呋喃化合物。