Simplified polyethylene catalyst system
    7.
    发明授权
    Simplified polyethylene catalyst system 失效
    简化聚乙烯催化剂体系

    公开(公告)号:US5070057A

    公开(公告)日:1991-12-03

    申请号:US502678

    申请日:1990-04-02

    IPC分类号: C08F4/60 C08F4/68 C08F10/00

    CPC分类号: C08F10/00

    摘要: An improved support vanadium catalyst, especially an improved Beran et al. catalyst system and ethylene polymerization process in which the improvement derives from fixing the promoter to a component of the catalyst composition such that it is a molecularly structural component of the catalyst and thus is not separately fed to the polymerization reaction, but instead is part of the catalyst composition fed to the reaction.

    摘要翻译: 改进的载体钒催化剂,特别是改进的Beran等 催化剂体系和乙烯聚合方法,其中改进来自于将催化剂固定到催化剂组合物的组分,使得其是催化剂的分子结构组分,因此不分别进料到聚合反应中,而是部分 催化剂组合物进料到反应中。

    Olefin separation process
    10.
    发明授权
    Olefin separation process 失效
    烯烃分离过程

    公开(公告)号:US4174353A

    公开(公告)日:1979-11-13

    申请号:US919420

    申请日:1978-06-27

    CPC分类号: C07C7/11 C07C7/152 Y02P30/464

    摘要: There is disclosed a process for the separation of ethylene or propylene from a purified, multi-component gas stream produced from the thermal cracking of hydrocarbons and containing ethylene or propylene and other low molecular weight components comprising the steps of: introducing said multi-component gas stream into an aqueous silver salt solution stream to effect the absorption and/or complexing of said contained ethylene or propylene and reaction of trace acetylenes with the silver metal ions of such solution; venting of the silver salt solution stream at reduced pressure to remove the dissolved other low molecular weight components; treating the resulting silver salt solution stream to separate the absorbed and/or complexed ethylene or propylene from the silver salt stream; further treating the resultant silver salt solution stream to release the contained trace acetylenes therefrom and provide an aqueous silver salt stream; and recycling said aqueous silver salt stream to said introducing step.

    摘要翻译: 公开了一种用于从烃的热裂解产生并含有乙烯或丙烯和其它低分子量组分的纯化多组分气流分离乙烯或丙烯的方法,包括以下步骤:引入所述多组分气体 流入银盐水溶液流中以实现所述含有乙烯或丙烯的吸收和/或络合以及痕量乙炔与该溶液的银金属离子的反应; 在减压下排出银盐溶液流以除去溶解的其它低分子量组分; 处理所得的银盐溶液流以从银盐流中分离吸收的和/或络合的乙烯或丙烯; 进一步处理所得的银盐溶液流以从其中释放所含​​的痕量乙炔,并提供银盐水流; 并将所述含水银盐流再循环到所述引入步骤。