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39 条记录 (耗时 0.013 秒)

    Refining crude amorphous polyolefins
    31.
    发明授权
    Refining crude amorphous polyolefins 失效
    精制非晶聚合物

    公开(公告)号：US3661884A

    公开(公告)日：1972-05-09

    申请号：US3661884D

    申请日：1969-07-07

    申请人： PHILLIPS PETROLEUM CO

    发明人： SHELL FRANCIS J ,  ZETMEIR NORRIS D

    IPC分类号： C08F6/02 ,  C08F3/02 ,  C08F3/08 ,  C08F15/00

    CPC分类号： C08F6/02 ,  C08L23/02

    摘要： CRUDE AMORPHOUS POLYOLEFINS, BY-PRODUCTS OF POLYOLEFIN PRODUCTION, CONTAIN QUANTITIES OF CATALYST RESIDUES INCLUDING DISCOLORING AGENTS SUCH THAT THE CRUDE MATERIAL IS DARK, HIGHLY VISCOUS-TO-SOLIDS, FLAMMABLE AND CORROSIVE WASTE. BY TREATING THE CRUDE PRODUCT IN A LIQUID TWOPHASE PURIFICATION PROCESS, THE AMORPHOUS POLYOLEFIN IS SEPARATED AND RECOVERED AS A USABLE, SAFE-TO-HANDLE, ESSENTIALLY COLOR FREE, MATERIAL. THE CATALYST RESIDUE ALSO IS RECOVERED.

    Preparation of ticl titl3 component of olefin polymerization catalyst
    32.
    发明授权
    Preparation of ticl titl3 component of olefin polymerization catalyst 失效
    烯烃聚合催化剂的TICL TITL3组分的制备

    公开(公告)号：US3562239A

    公开(公告)日：1971-02-09

    申请号：US3562239D

    申请日：1967-06-21

    申请人： SHELL OIL CO

    发明人： JONG MARTIJN H DE ,  PROOIJEN PIETER VAN

    IPC分类号： C08F4/64 ,  C08F10/00 ,  C08F3/08

    CPC分类号： C08F10/00 ,  Y10S526/907 ,  C08F4/655

    摘要： TITANIUM TRICHLORIDE FOR USE AS CATALYST COMPONENT IN STEREOREGULAR OLEFIN POLYMERIZATION IS PREPARED BY GRADUAL ADDITION OF A SOLUTION OF TITANIUM TETRACHLORIDE IN INERT DILUENT TO A SOLUTION OF TRIALKYL ALUMINUM IN INERT DILUENT. THE MIXTURE IS PREPARED AND HELD AT A TEMPERATURE BELOW -30*C. AND MOST ADVANTAGEOUSLY BELOW -50*C. UNTIL ADDITION IS COMPLETE, IS THEREAFTER GRADUALLY WARMED UP TO NOT ABOVE 80*C. UNTIL CONVERSION TO TICL3 IS COMPLETE, AND IS THEN HEATED TO AN ELEVATED TEMPERATURE AT WHICH THE TICL3 IS CONVERTED TO THE VIOLET FORM.

    Deashing solvent recovery process
    33.
    发明授权
    Deashing solvent recovery process 失效
    消除溶剂回收方法

    公开(公告)号：US3554995A

    公开(公告)日：1971-01-12

    申请号：US3554995D

    申请日：1969-01-23

    申请人： DART IND INC

    发明人： MCCRAY ERNEST G

    IPC分类号： C08F6/00 ,  B01J19/00 ,  C08F6/06 ,  C08F10/00 ,  C08F3/08 ,  C08F47/24

    CPC分类号： C08F10/00 ,  C08F2/38

    摘要： THE IMPROVEMENT IN A PROCESS FOR RECOVERING DEASHING SOLVENT FROM A MIXTURE OF A SOLVENT CONTAINING CATALYST AND POLYMERIC RESIDUES COMPRISES SEPARATING BOTTOMS RECOVERED FROM A VAPORIZATION SYSTEM IN A HEAT TREATMENT ZONE IN THE ABSENCE OF FLUX MEDIUM AT TEMPERATURES OF ABOVE ABOUT 300*F. WITH AGITATION INTO RESIDUE AND SOLVENT, REMOVING THE RESIDUE TO STORAGE AND RECOVERING FROM THE ZONE THE SOLVENT WHICH CONTAINS SUBSTANTIALLY ALL OF THE SOLVENT IN THE BOTTOMS FED TO THE ZONE. THE RESIDUE CONTAINS A PREDOMINANT AMOUNT OF AMORPHOUS POLYMERIC MATERIALS WHICH IS OF COMMERCIAL VALUE.