Catalyst for synthesizing alkylene carbonate
    7.
    发明授权
    Catalyst for synthesizing alkylene carbonate 失效
    用于合成碳酸亚烷基酯的催化剂

    公开(公告)号:US06933394B2

    公开(公告)日:2005-08-23

    申请号:US10379703

    申请日:2003-03-06

    摘要: The present invention provides an alkylene-carbonate synthesis catalyst comprising a compound insoluble to one phase containing alkylene carbonate produced when the alkylene oxide and carbon dioxide are reacted with the catalyst and soluble to the other phase substantially free of alkylene carbonate. The catalyst allows alkylene carbonate to be produced with high yield and selectivity and be readily collected. The catalyst also facilitates repeated or continuous reaction process in a cost-effective manner. The present invention also provides an apparatus for producing alkylene carbonate using the catalyst.

    摘要翻译: 本发明提供了一种亚烷基碳酸酯合成催化剂,其包含当烯化氧和二氧化碳与催化剂反应并且可溶于基本不含碳酸亚烷基酯的另一相时,产生的含有亚烷基碳酸酯的一相不溶的化合物。 催化剂允许以高产率和选择性生产碳酸亚烃酯并且容易收集。 该催化剂还以成本有效的方式促进重复或连续反应过程。 本发明还提供了一种使用该催化剂生产碳酸亚烷基酯的装置。

    Process for preparing polysilane by catalytic dehydrogenative
condensation of organosilane and metal complex catalyst therefor
    8.
    发明授权
    Process for preparing polysilane by catalytic dehydrogenative condensation of organosilane and metal complex catalyst therefor 失效
    通过有机硅烷和金属络合物催化剂的催化脱氢缩合制备聚硅烷的方法

    公开(公告)号:US6140448A

    公开(公告)日:2000-10-31

    申请号:US410750

    申请日:1999-10-01

    IPC分类号: C08F4/64 C08G77/60

    CPC分类号: C08G77/60

    摘要: A polysilane is produced by subjecting a trihydrosilane to hydrogenative condensation in the presence of a titanium or zirconim complex catalyst having a first group selected from a dialkylaminoalkylcyclopentadienyl group, an .alpha.-[(dialkylamino)alkyl]indenyl group and a .beta.-[(dialkylamino)alkyl]indenyl group and a second group selected from a cyclopentadienyl group and a pentamethylcyclopentadienyl group. The above dialkylaminoalkyl group may be replaced by a branched alkyl group. The zirconium complexes are novel compounds.

    摘要翻译: 在具有选自二烷基氨基烷基环戊二烯基,α - [(二烷基氨基)烷基]茚基和β - [(二烷基氨基)茚基的第一组的钛或锆石复合催化剂存在下,使三氢硅烷进行氢化缩合, 烷基]茚基和选自环戊二烯基和五甲基环戊二烯基的第二基团。 上述二烷基氨基烷基可以被支链烷基取代。 锆络合物是新化合物。