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2936 条记录 (耗时 0.033 秒)

    FLUIDIC EXFOLIATION
    103.
    发明申请
    FLUIDIC EXFOLIATION 审中-公开

    公开(公告)号：US20200255294A1

    公开(公告)日：2020-08-13

    申请号：US16635538

    申请日：2018-07-31

    申请人： Imperial College Innovations Limited

    发明人： Jason Stafford ,  Omar Matar ,  Camille Petit

    IPC分类号： C01B32/19 ,  B01J19/18 ,  B01J19/00

    摘要： The invention provides an apparatus for fluidic exfoliation of a layered material comprising: a housing of circular cross-section defined by a housing wall; a hollow rotor of circular cross-section having a first end and a second end and a wall positioned therebetween arranged concentrically within the housing, wherein the wall of the hollow rotor defines an inner chamber and the space in between the wall of the hollow rotor and the housing wall defines an outer chamber, and wherein a fluid flow path is provided between the inner chamber and the outer chamber; a fluid inlet in fluid communication with the inner chamber or the outer chamber; and a fluid outlet in fluid communication with the other of the inner chamber or the outer chamber; wherein the outer chamber has a width such that on passage of a fluid comprising the layered material from the inlet to the outlet through the outer chamber, a shear rate sufficient to exfoliate the layered material may be applied to the fluid comprising the layered material in the outer chamber by rotation of the hollow rotor.

    Reactor
    104.
    发明授权
    Reactor 有权

    公开(公告)号：US10738137B2

    公开(公告)日：2020-08-11

    申请号：US16653723

    申请日：2019-10-15

    申请人： Kureha Corporation

    发明人： Tomoya Kotake ,  Noriyuki Yoshio ,  Shuhei Nishiyama ,  Misato Matsuoka

    IPC分类号： C08F2/01 ,  B01J19/00 ,  B01J19/18 ,  B01F7/16 ,  C08L81/02

    摘要： A polymerization device that includes: a reaction vessel that houses a polymerization solution and in which a polymerization reaction is performed; a stirring blade that stirs the polymerization solution housed in the reaction vessel; a plurality of heat transfer pipes that transfer heat to the polymerization solution in order to start the polymerization reaction and cause the polymerization reaction to proceed, and that remove, from the polymerization solution, heat generated by the polymerization reaction; and a baffle arranged between a vessel wall of the reaction vessel and the heat transfer pipes.

    Production system/production process for acrylic acid and precursors thereof
    106.
    发明授权
    Production system/production process for acrylic acid and precursors thereof 有权

    公开(公告)号：US10703702B2

    公开(公告)日：2020-07-07

    申请号：US15223178

    申请日：2016-07-29

    申请人： Novomer, Inc.

    发明人： Sadesh H Sookraj ,  Jay J. Farmer

    IPC分类号： C07C51/09 ,  C08G63/78 ,  C08G63/08 ,  B01J19/18

    摘要： Provided herein are systems, and methods of using such systems, for producing acrylic acid from ethylene oxide and carbon monoxide on an industrial scale. The production system/production process has various unit operations, including, for example, a β-propiolactone production system/production process configured to produce β-propiolactone from ethylene oxide and carbon monoxide; a polypropiolactone production system/production process configured to produce polypropiolactone from β-propiolactone; and a glacial acrylic acid production system/production process configured to produce acrylic acid with a high purity by thermolysis of polypropiolactone.

    PROCESS FOR INTRODUCING CATALYST IN A POLYMERIZATION PROCESS
    107.
    发明申请
    PROCESS FOR INTRODUCING CATALYST IN A POLYMERIZATION PROCESS 审中-公开

    公开(公告)号：US20200207886A1

    公开(公告)日：2020-07-02

    申请号：US16728772

    申请日：2019-12-27

    申请人： Braskem S.A.

    发明人： Olavo Martins Junior ,  Dihogenes Adriano Pozzer ,  Élita Cavalli

    IPC分类号： C08F10/06 ,  B01J4/00 ,  B01J19/18

    摘要： Methods of adding a catalyst to a bulk polymerization process may include mixing the catalyst with propylene to form a catalyst mixture that is substantially free of any C20 or greater hydrocarbons, feeding the catalyst mixture into a polymerization reactor, activating the catalyst mixture; and performing a polymerization on the catalyst mixture in the polymerization reactor. Polymers may be formed by polymerization processes that are substantially free of any C20 or greater hydrocarbons.

    POLYMERIZATION REACTOR SYSTEM COMPRISING AT LEAST ONE WITHDRAWAL VALVE
    108.
    发明申请
    POLYMERIZATION REACTOR SYSTEM COMPRISING AT LEAST ONE WITHDRAWAL VALVE 审中-公开

    公开(公告)号：US20200207879A1

    公开(公告)日：2020-07-02

    申请号：US16646767

    申请日：2018-11-02

    申请人： Borealis AG

    发明人： Christof Wurnitsch ,  Sameer Vijay ,  Erno Elovainio

    IPC分类号： C08F2/01 ,  B01J19/24 ,  B01J19/18 ,  B01J4/00 ,  C08F10/00

    摘要： Described herein is a polymerization reactor system comprising at least one loop reactor and/or at least one transfer line, and further comprising at least one withdrawal valve, wherein the at least one withdrawal valve is mounted to a wall of a lower horizontal segment of the loop reactor and/or to a wall of the transfer line, at an angle α of more than 0° and equal to or less than 85°, determined from perpendicular to a tangent of the wall at the mounting position in flow direction of a slurry in the loop reactor and/or in the transfer line. The valve piston of the at least one withdrawal valve comprises a valve plate at an end directed to the at least one loop reactor and/or at an end directed to the at least one transfer line, the valve plate being shaped according to an inner wall of the at least one loop reactor and/or according to an inner wall of the at least one transfer line such that the valve piston is flush with the inner wall of the at least one loop reactor and/or with the inner wall of the at least one transfer line in a closed position of the withdrawal valve. By using such a withdrawal valve, a limitation of the effective withdrawal area can be avoided or at least be reduced such that the liquid slurry can efficiently be withdrawn and the risk of plugging is reduced. Further disclosed is a method for producing an olefin polymer in the inventive polymerization reactor system.

    OLIGOMERISER WITH AN IMPROVED FEED SYSTEM
    110.
    发明申请
    OLIGOMERISER WITH AN IMPROVED FEED SYSTEM 审中-公开

    公开(公告)号：US20200171452A1

    公开(公告)日：2020-06-04

    申请号：US16625926

    申请日：2018-06-29

    申请人： SABIC GLOBAL TECHNOLOGIES B.V.

    发明人： Ignacio Vic Fernandez ,  Fernan Mateos Salvador ,  Surya Prakasa Rao Daliparthi

    IPC分类号： B01J4/00 ,  B01J19/18 ,  B01J19/00 ,  C08G64/30 ,  B01F7/00 ,  B01F7/22 ,  B01F3/10

    摘要： In an embodiment, a reactor for carrying out a melt transesterification reaction at a reactor temperature of 160 to 300° C. and a reactor pressure of 5 to 200 mbar, comprises a cylindrical tank comprising a top, a side, and a bottom, wherein the bottom is convex, extending away from the top; a stirring shaft disposed within the cylindrical tank along an axis thereof so that it is rotatable from outside of the cylindrical tank; a stirring blade extending from the stirring shaft in the cylindrical tank; a reactant solution inlet located on the bottom; and a reaction solution outlet located on the bottom. The reactor can be used for the polymerization of a polycarbonate oligomer.