PROCESS AND APPARATUS FOR PRODUCTION OF HALOGENATED BUTYL RUBBER WITH REDUCED EMISSIONS
    1.
    发明申请
    PROCESS AND APPARATUS FOR PRODUCTION OF HALOGENATED BUTYL RUBBER WITH REDUCED EMISSIONS 有权
    用于生产具有减少排放的氢化丁基橡胶的方法和装置

    公开(公告)号:US20140221576A1

    公开(公告)日:2014-08-07

    申请号:US14115477

    申请日:2012-05-18

    IPC分类号: C08C19/14

    摘要: The present invention relates to a process for the production of halogenated butyl rubber and an apparatus for the production of rubber cement for use in the production of halogenated butyl rubber. The process and apparatus permit direct mixing of aqueous rubber slurry with a non-halogenated organic solvent to make a rubber cement solution. The water layer is then separated from the partially dissolved rubber cement and the cement phase is sent for halogenation. The apparatus is an enclosed vessel comprised of at least one dissolving zone and at least one separator zone. The process and apparatus advantageously employ recycle of rubber cement in order to disrupt an interface layer that forms between the water and rubber cement, to thereby improve continuously operation of the process.

    摘要翻译: 本发明涉及生产卤化丁基橡胶的方法和用于生产用于生产卤化丁基橡胶的橡胶水泥的设备。 该方法和设备允许水性橡胶浆料与非卤化有机溶剂的直接混合以制备橡胶水泥溶液。 然后将水层与部分溶解的橡胶粘合剂分离,并将水泥相送入卤化。 该装置是由至少一个溶解区和至少一个分离区构成的封闭容器。 该方法和装置有利地使用橡胶粘结剂的再循环,以便破坏在水和橡胶水泥之间形成的界面层,从而改进该方法的连续操作。

    Process for the production of polyisoolefins
    3.
    发明授权
    Process for the production of polyisoolefins 失效
    生产聚异烯烃的方法

    公开(公告)号:US5543479A

    公开(公告)日:1996-08-06

    申请号:US508237

    申请日:1995-07-27

    摘要: Polyisoolefins are produced according to the invention by polymerizing isoolefins having 4 to 16 carbon atoms, optionally with conjugated diolefins having 4 to 6 carbon atoms and/or cationically polymerizable, mono- or polyunsaturated, organic compounds having 4 to 16 carbon atoms in the presence of mixtures of carbon dioxide and linear, branched and/or cyclic C.sub.4 -C.sub.8 alkanes and in the presence of catalysts at temperatures of -70.degree. C. to +20.degree. C. and pressures of 1 to 70 bar, wherein the weight ratio of carbon dioxide to alkanes is 10:90 to 90:10.The process according to the invention largely prevents the formation of fouling on the reactor walls, so ensuring better removal of heat. Moreover, in accordance with the process according to the invention, the polyisoolefins obtained may be directly chemically modified once the carbon dioxide has been removed.

    摘要翻译: 根据本发明通过聚合具有4至16个碳原子的异烯烃,任选地具有4至6个碳原子的共轭二烯烃和/或具有4至16个碳原子的阳离子可聚合的单或多不饱和有机化合物在根据本发明的情况下, 二氧化碳和线性,支化和/或环状C 4 -C 8烷烃的混合物,并且在催化剂存在下,在-70℃至+ 20℃的温度和1至70巴的压力下,其中碳的重量比 二氧化碳至烷烃为10:90至90:10。 根据本发明的方法大大地防止在反应器壁上形成结垢,从而确保更好地除去热量。 此外,根据本发明的方法,一旦二氧化碳被除去,所获得的聚异戊烯可以直接化学改性。