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    Methods for removing catalyst residue from a depolymerization process stream
    1.
    发明申请
    Methods for removing catalyst residue from a depolymerization process stream 失效
    从解聚工艺流中除去催化剂残留物的方法

    公开(公告)号：US20060235233A1

    公开(公告)日：2006-10-19

    申请号：US11389517

    申请日：2006-03-24

    申请人： Peter Phelps ,  Jimmy Webb ,  David Phelon ,  Paul Andrusyszyn

    发明人： Peter Phelps ,  Jimmy Webb ,  David Phelon ,  Paul Andrusyszyn

    IPC分类号： C07D321/00

    CPC分类号： C08G63/85 ,  C08G63/183 ,  C08G63/78 ,  C08G63/81 ,  Y02P20/582

    摘要： The invention relates to methods and systems for selective removal of catalyst residue from a depolymerization product stream without a water quench, as well as methods and systems for subsequent recovery of residual linear oligomer. The substantially metal-free and substantially water-free residual oligomer byproduct can then be advantageously used as recyclate in a process for preparing MPO. For example, the residual oligomer recyclate can be used as a reactant in the polymerization and subsequent depolymerization (cyclization) of low-acid polyester to form MPO.

    摘要翻译： 本发明涉及用于从没有水骤冷的解聚产物流中选择性除去催化剂残余物的方法和系统，以及用于随后回收残余线型低聚物的方法和系统。 然后，在制备MPO的方法中，基本上无金属和基本上无水的残余低聚物副产物可有利地用作回收。 例如，残留的低聚物回收物可以用作聚合中的反应物，并且随后使低酸聚酯解聚（环化）形成MPO。