BF.sub.3 gas recovery process
    1.
    发明授权
    BF.sub.3 gas recovery process 失效
    BF3气体回收过程

    公开(公告)号:US5811616A

    公开(公告)日:1998-09-22

    申请号:US489880

    申请日:1995-06-13

    摘要: BF.sub.3 is vaporized from specified crude polyolefin reaction product mixture in a vaporization zone at a temperature insufficient to decompose BF.sub.3 or any BF.sub.3 promoter complex in the mixture, and the vaporized BF.sub.3 may be recovered directly. Further, a process for the oligomerization of a liquid olefin composition and recovery of BF.sub.3 is described in which inert volatile material present in a liquid olefin composition is removed from the composition by vaporization, forming a degassed liquid olefin composition free of inert volatile material. The degassed liquid olefin composition is then contacted in a reaction zone with BF.sub.3 under conditions to oligomerize the olefin, forming crude polyolefin oligomerization reaction product mixture containing dissolved BF.sub.3, which may be treated as described.

    摘要翻译: BF 3在气化区内从指定的粗聚烯烃反应产物混合物中蒸发,其温度不足以分解混合物中的BF 3或任何BF 3助催化剂复合物,并且蒸发的BF 3可以直接回收。 此外,描述了液态烯烃组合物的低聚反应和BF 3的回收方法,其中存在于液态烯烃组合物中的惰性挥发性物质通过蒸发从组合物中除去,形成无惰性挥发性物质的脱气液体烯烃组合物。 然后脱气的液体烯烃组合物在反应区与BF 3在使烯烃低聚的条件下接触,形成含有溶解的BF 3的粗聚烯烃低聚反应产物混合物,其可以如上所述处理。

    BF.sub.3 recovery process
    2.
    发明授权
    BF.sub.3 recovery process 失效
    BF3恢复过程

    公开(公告)号:US5705727A

    公开(公告)日:1998-01-06

    申请号:US489975

    申请日:1995-06-13

    摘要: A process for the recovery of BF.sub.3 from crude oligomerization reaction product mixture containing dissolved BF.sub.3 is described, the process being characterized by vaporization of BF.sub.3 from the crude oligomerization reaction product mixture in a vaporization zone at a temperature insufficient to decompose BF.sub.3 or any BF.sub.3 promoter-complex in the mixture. BF.sub.3 from the vaporization zone is then contacted with a liquid olefin composition under conditions to absorb BF.sub.3, in an absorption zone, forming a mixture comprising liquid olefin composition and BF.sub.3. The liquid olefin composition may be utilized directly for oligomerization of the liquid olefin therein.

    摘要翻译: 描述了从含有溶解的BF 3的粗低聚反应产物混合物中回收BF 3的方法,该方法的特征在于在不足以分解BF 3或任何BF 3助催化剂的温度下在汽化区中从粗低聚反应产物混合物中蒸发BF 3, 混合物中的复合物。 然后在汽化区的BF 3与液态烯烃组合物在吸收区中吸收BF 3的条件下接触,形成包含液态烯烃组合物和BF 3的混合物。 液体烯烃组合物可以直接用于其中的液体烯烃的低聚。