Multiphase Systems for the Recycling of Alkoxycarbonylation Catalysts
Multiphase Systems for the Recycling of Alkoxycarbonylation Catalysts
复制标题
用于烷氧基羰基化催化剂回收的多相系统
DOI：
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发表时间：
2006
期刊：
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通讯作者：
G. Koten
中科院分区：
文献类型：
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作者：
Jeroen J. M. de Pater;Berth;C. Elsevier;G. Koten
本文评述了烯烃和炔烃烷氧基羰基化反应中催化剂回收的各种多相体系。已经描述了催化剂在不溶性载体如二氧化硅、氧化铝、粘土或聚合物上的固定，以及在几种液/液两相体系（水/有机、离子液体/有机、氟/有机或超临界CO2/有机）的无机相中的固定。在某些情况下，可以获得有关催化剂分离和回收效率的详细信息。目前的研究主要集中在烯烃的烷氧基羰基化反应上，并提出了几种有效的催化剂回收方法。通过从超临界CO2中的特定沉淀或在氟相中的选择性溶解的催化剂的再循环仅受到很少的关注，但提供了许多进一步改进的机会。
This review evaluates the various multi- phasic systems that have been developed for catalyst recycling in the context of alkoxycarbonylation of al- kenes and alkynes. Immobilization of the catalyst on an insoluble support, such as silica, alumina, clay or a polymer, as well as immobilization in the inorganic phase of several liquid/liquid biphasic systems (aque- ous/organic, ionic liquid/organic, fluorous/organic or supercritical CO2/organic) has been described. In several cases detailed information on the efficiency of catalyst separation and recycling is available. Most of the work was focused on the alkoxycarbonylation reactions of alkenes, for which several efficient meth- ods for catalyst recycling were demonstrated. The re- cycling of catalyst through specific precipitation from supercritical CO2 or selective dissolution in a fluo- rous phase, has received only scant attention but offers many opportunities for further improvement.