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8 条记录 (耗时 0.016 秒)

    Production of 2,2-disubstituted propiolactones
    1.
    发明授权
    Production of 2,2-disubstituted propiolactones 失效
    2,2-二取代丙内酯的制备

    公开(公告)号：US3994929A

    公开(公告)日：1976-11-30

    申请号：US583338

    申请日：1975-06-02

    申请人： Robert P. Allen ,  Hugh J. Hagemeyer, Jr.

    发明人： Robert P. Allen ,  Hugh J. Hagemeyer, Jr.

    IPC分类号： B01J23/20 ,  C07D305/12

    CPC分类号： C07D305/12 ,  B01J23/20

    摘要： The present invention relates to a process for the manufacture of 2,2-disubstituted propiolactones via the pyrolysis of methylene diisoalkylate in the vapor phase over a fixed bed catalyst system. The reaction of the invention is as follows: ##SPC1##Wherein R is alkyl of from 1 to 4 carbon atoms and R.sup.1 is alkyl of from 1 to 4 carbon atoms or phenyl. The catalyst comprises an oxide of a metal selected from the group Ag, U, Zn, Ti, Zr, Th, Ta, Nb, Mo, W, and Sn on a suitable support. A preferred catalyst is the metal oxide-silica gel complex which results from heating the calcined residue of a salt of a metal selected from the group consisting of Ta, Ti, Nb and Zr supported upon a silica gel in the presence of nitrogen and steam at a temperature of from about 650.degree. C. to about 1000.degree. C. The process is operable at temperatures from about 240.degree. C. to about 360.degree. C. with contact times ranging from about 0.1 second to about 30.0 seconds. The gaseous ester feed may, if desired, be diluted with an inert gas such as nitrogen and the reactor may be run at atmospheric, or superatmospheric pressure.

    摘要翻译： 本发明涉及通过气相中的亚甲基二异烷基化物在固定床催化剂体系上的热解制备2,2-二取代的丙内酯的方法。 本发明的反应如下：+ q，10，其中R为1至4个碳原子的烷基，R 1为1至4个碳原子的烷基或苯基。 该催化剂包括在合适的载体上选自Ag，U，Zn，Ti，Zr，Th，Ta，Nb，Mo，W和Sn中的金属的氧化物。 优选的催化剂是金属氧化物 - 硅胶复合物，其通过在氮气和蒸汽的存在下，将负载在硅胶上的选自Ta，Ti，Nb和Zr的金属的煅烧残渣加热， 温度为约650℃至约1000℃。该方法可在约240℃至约360℃的温度下操作，接触时间为约0.1秒至约30.0秒。 如果需要，气态酯进料可以用惰性气体如氮气稀释，并且反应器可以在大气压或超大气压下进行。

    Process for the preparation of hydrocarbon resins
    2.
    发明授权
    Process for the preparation of hydrocarbon resins 失效
    烃树脂的制备方法

    公开(公告)号：US4342850A

    公开(公告)日：1982-08-03

    申请号：US200866

    申请日：1980-10-27

    申请人： Robert P. Allen ,  Albert C. Ruggles

    发明人： Robert P. Allen ,  Albert C. Ruggles

    IPC分类号： C08F8/04

    CPC分类号： C08F8/04

    摘要： This invention relates to improved processes for hydrocarbon resin preparation. More particularly, the invention relates to treating the C.sub.5 and higher mixed thermally soaked hydrocarbon fraction mixture obtained in the steam cracking of propane and ethane with alumina prior to polymerizing the hydrocarbon fraction mixture with a Friedel-Crafts catalyst to form a high softening point hydrocarbon resin. The polymerized resin is then quenched or diluted, washed to remove catalyst residues, dried and hydrogenated to provide high softening point hydrocarbon resins.

    摘要翻译： 本发明涉及烃树脂制备的改进方法。 更具体地说，本发明涉及在用Friedel-Crafts催化剂聚合烃馏分混合物之前处理在丙烷和乙烷的蒸汽裂解中获得的C5和更高混合的热浸泡烃馏分混合物，以形成高软化点烃树脂 。 然后将聚合的树脂淬灭或稀释，洗涤以除去催化剂残余物，干燥并氢化以提供高软化点烃树脂。

    Inducer for increasing centrifugal pump efficiency in wells producing high viscosity crude oil
    3.
    发明授权
    Inducer for increasing centrifugal pump efficiency in wells producing high viscosity crude oil 有权
    用于提高生产高粘度原油的井中离心泵效率的诱导剂

    公开(公告)号：US6116338A

    公开(公告)日：2000-09-12

    申请号：US150229

    申请日：1998-09-09

    申请人： William R. Morrison ,  Carl G. Woodworth ,  Robert P. Allen

    发明人： William R. Morrison ,  Carl G. Woodworth ,  Robert P. Allen

    IPC分类号： B01D19/00 ,  E21B43/38 ,  F04D9/00 ,  F04D29/22

    CPC分类号： F04D9/001 ,  B01D19/0052 ,  E21B43/38 ,  F04D29/2277

    摘要： An device for use down-hole in an oil well for inducing heavy crude oil to flow into the inlet of a centrifugal pump by creating a positive pressure on the bottom inlet of the pump. The device inserts into the down-hole equipment string between the gas separator and the centrifugal pump. The device consists of an auger that attaches to and rotates with the shaft of an electric down-hole motor and a housing that surrounds the auger. The housing connects to the gas separator at the bottom end of the device and connects to the centrifugal pump at a top end of the device. The auger has tight clearance with the housing to enable the rotating auger to force the fluid upward within the housing as the auger rotates. The vanes of the auger are arranged so that the fluid is pushed with increasing pressure as it moves upward through the device to the centrifugal pump.

    摘要翻译： 一种用于在油井中使用井底的装置，用于通过在泵的底部入口上产生正压来引起重质原油流入离心泵的入口。 该装置插入气体分离器和离心泵之间的井下设备串中。 该装置包括一个螺旋推运器，该螺旋钻与电动井下电动机的轴连接并与其旋转，以及围绕螺旋钻的壳体。 外壳连接到设备底端的气体分离器，并连接到设备顶端的离心泵。 螺旋钻与壳体具有紧密的间隙，以使旋转的螺旋推运器在螺旋钻旋转时将流体向上压入壳体内。 螺旋推运器的叶片布置成使得当流体通过装置向上移动到离心泵时，流体被增加的压力推动。

    Hydrocarbon resin and process for preparation
    5.
    发明授权
    Hydrocarbon resin and process for preparation 失效
    烃类树脂及其制备方法

    公开(公告)号：US4393261A

    公开(公告)日：1983-07-12

    申请号：US421632

    申请日：1982-09-22

    申请人： Robert P. Allen

    发明人： Robert P. Allen

    IPC分类号： C08G61/02 ,  C07C3/18

    CPC分类号： C08G61/02

    摘要： This invention relates to novel hydrocarbon resins and processes for their preparation. More particularly, the invention relates to a liquid hydrocarbon resin prepared by polymerizing norbornene and xylene with a Friedel-Crafts catalyst. The polymerized resin is hydrogenated to provide water white liquid hydrocarbon resins useful as liquid tackifiers in preparing hot-melt adhesive formulations.

    摘要翻译： 本发明涉及新型烃树脂及其制备方法。 更具体地，本发明涉及通过用Friedel-Crafts催化剂聚合降冰片烯和二甲苯制备的液体烃树脂。 将聚合的树脂氢化以提供用作制备热熔粘合剂制剂的液体增粘剂的水白色液体烃树脂。