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    Nickel-copper-molybdenum methanation catalyst
    1.
    发明授权
    Nickel-copper-molybdenum methanation catalyst 失效
    镍 - 铜 - 莫来石甲烷催化剂

    公开(公告)号：US3962140A

    公开(公告)日：1976-06-08

    申请号：US556808

    申请日：1975-03-10

    申请人： William R. Alcorn ,  Leonard A. Cullo

    发明人： William R. Alcorn ,  Leonard A. Cullo

    IPC分类号： C07C1/02 ,  B01J23/88 ,  B01J23/885 ,  B01J31/00 ,  B01J31/16 ,  C07B61/00 ,  C07C1/00 ,  C07C1/04 ,  C07C9/04 ,  C07C67/00 ,  C10K3/04 ,  B01J23/84

    CPC分类号： C10K3/04 ,  B01J23/885 ,  C07C1/0435 ,  C07C2523/28 ,  C07C2523/72 ,  C07C2523/755 ,  C07C2523/885

    摘要： A supported methanation catalyst and a process for utilizing the catalyst are disclosed. The catalyst yields a product containing a major proportion of methane and some ethane. Methanation of a gaseous feed stream containing from about 10 to about 50 mole percent carbon monoxide, and from about 1.0 to about 3.0 times as much hydrogen as carbon monoxide, is effected at elevated temperature and high pressure continuously over a prolonged period of time, while a conversion of carbon monoxide in excess of 80 mole percent is maintained. Thermal stability at elevated temperature and pressure permits essentially continuous use of the catalyst for extended periods of time without time-consuming shutdowns. High conversion of gaseous feed and thermal stability of catalyst permits economical process design which utilizes a minimal recycle, if any.The supported catalyst consists essentially of a complex of oxides of nickel, copper and molybdenum which complex is reduced on the support prior to or during use. The complex of oxides consists of from about 5 to about 20 percent by weight molybdenum oxide, and from about 5 to about 40 percent by weight nickel oxide, each amount based on total catalyst, present in a weight ratio of nickel oxide to copper oxide in the range from 1:1 to about 9:1, and preferably in the range from about 1 to about 3.

    Manufacture of trimethylolpropane
    2.
    发明授权
    Manufacture of trimethylolpropane 失效
    三羟甲基丙烷的制造

    公开(公告)号：US5763690A

    公开(公告)日：1998-06-09

    申请号：US691760

    申请日：1996-08-02

    申请人： Jeffrey S. Salek ,  Joseph Pugach ,  Carole L. Elias ,  Leonard A. Cullo

    发明人： Jeffrey S. Salek ,  Joseph Pugach ,  Carole L. Elias ,  Leonard A. Cullo

    IPC分类号： C07C29/141 ,  C07C29/14

    CPC分类号： C07C29/141

    摘要： Trimethylolpropane of high purity is efficiently made by mixing the aldol reaction product of formaldehyde and n-butyraldehyde with at least about 20 wt % of a lower alcohol prior to hydrogenation. The alcohol addition also promotes hydrogenolysis of by-product esters at pressures below 3000 psig and allows recovery of high purity product by simple distillation.

    摘要翻译： 在氢化之前，通过将甲醛和正丁醛的醛醇缩合反应产物与至少约20重量％的低级醇混合来有效地制备高纯度的三羟甲基丙烷。 酒精添加还促进副产物酯在低于3000psig的压力下的氢解，并允许通过简单蒸馏回收高纯度产物。

    Incorporation of functional groups in polymers
    9.
    发明授权
    Incorporation of functional groups in polymers 失效
    在聚合物中引入官能团

    公开(公告)号：US5294679A

    公开(公告)日：1994-03-15

    申请号：US33212

    申请日：1993-03-18

    申请人： Andrew J. Sivak ,  Leonard A. Cullo

    发明人： Andrew J. Sivak ,  Leonard A. Cullo

    IPC分类号： C08F8/00 ,  C08F8/12 ,  C08F30/08 ,  C08F210/00 ,  C08F210/16 ,  C08L23/02

    CPC分类号： C08F8/00 ,  C08F210/00 ,  C08F30/08 ,  C08F8/12 ,  C08L23/02 ,  C08F210/16

    摘要： New polymers are disclosed to be made in supported Ziegler-Natta systems. They include monomers exhibiting polar functionality such as through a hydroxyl group or other functional group protected during polymerization in the presence of highly active catalysts by the use of a protective alkyl silane group which is removed after polymerization to restore the functionality of the group. The typical polymer thus made is a polyolefin having functional groups on its backbone; the functional groups may be reacted with conventional dyes and/or may perform other functions and enter reactions with other reactive compounds.

    摘要翻译： 公开了新的聚合物在支持的齐格勒 - 纳塔（Ziegler-Natta）系统中制备。 它们包括具有极性官能团的单体，例如通过使用保护性烷基硅烷基团在高活性催化剂存在下在聚合过程中保护的其它官能团，聚合后除去，以恢复基团的官能团。 由此制得的典型聚合物是其主链上具有官能团的聚烯烃; 官能团可以与常规染料反应和/或可以进行其它功能并与其它反应性化合物反应。