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    • 5. 发明申请
    • PROCESS FOR PREPARING A HALOGENATED POLYMER AND DEVICE FOR THE IMPLEMENTATION THEREOF
    • 制备聚合物的方法及其实施方法
    • WO2011073130A1
    • 2011-06-23
    • PCT/EP2010/069489
    • 2010-12-13
    • SOLVAY SADE FRANCISCO, ManuelCLAEYS, Ivan
    • DE FRANCISCO, ManuelCLAEYS, Ivan
    • C08F14/00B01J3/00
    • B01J19/242B01J3/008B01J2219/00006B01J2219/00094B01J2219/00108B01J2219/0011B01J2219/00162C08F2/04C08F14/00C08F14/06Y02P20/544C08F2/20
    • Continuous process for preparing a halogenated polymer comprising a step of polymerization of at least one halogenated monomer in a medium comprising carbon dioxide in the liquid or supercritical state (L/SC-CO 2 ), in at least one pressurized reactor, said process comprising at least : - (1) an expansion of the suspension resulting from the reactor; - (2) a separation of the expanded suspension resulting from the reactor into a first stream, containing the solid phase comprising the halogenated polymer and into a liquid, gaseous or supercritical second stream, which is a mixture Of CO 2 and of monomer not converted to polymer; and the recovery of this first stream and of this second stream; - (3) an optional reheating, applied to the expanded suspension, before or after its separation into first and second streams, with optional recovery of the cold energy generated by the expansion; - (4) a recompression of the second stream and the optional cooling thereof in order to recycle it, at a plurality of points, to the reactor feed, with a fresh monomer make-up and, possibly, a CO 2 make-up; - (5) a final step of degassing the halogenated polymer, optionally in combination with a continuous technique of forming the polymer into granules. Device for implementing the process.
    • 制备卤化聚合物的连续方法,包括在至少一个加压反应器中在包含液态或超临界状态的二氧化碳(L / SC-CO 2)的介质中聚合至少一种卤化单体的步骤,所述方法至少包括 : - (1)由反应器产生的悬浮液的膨胀; - (2)将由反应器产生的膨胀悬浮液分离成含有包含卤化聚合物的固相的第一流,并进入液态,气态或超临界二级流,其是CO 2和未转化为 聚合物; 和第一个流和第二个流的恢复; - (3)在分离成第一和第二流之前或之后,将扩展悬浮液应用于可选的再加热,任选地回收膨胀产生的冷能; - (4)第二流的再压缩和任选的冷却,以便在多个点将其再循环到具有新鲜的单体组成和可能的CO 2构成的反应器进料中; - (5)脱卤卤代聚合物的最终步骤,任选地与将聚合物形成颗粒的连续技术组合。 用于实施过程的设备。