| 专利名称 | Supported catalysts for the fixation of carbon dioxide into aliphatic polycarbonates and a process for preparing the same | 申请号 | US20020319442 | 专利类型 | US | 公开（公告）号 | US2003134740 | 公开（授权）日 | 2003.07.17 | 申请（专利权）人 | 中国科学院广州化学研究所 | 发明（设计）人 | MENG YUEZHONG (CN); ZHU QUAN (CN); ZHANG SHIZHEN (CN); LI XIUHUA (CN); DU LONGCHAO (CN) | 主分类号 | B01J31/00 | IPC主分类号 | B01J31/00;B01J21/08 | 专利有效期 | Supported catalysts for the fixation of carbon dioxide into aliphatic polycarbonates and a process for preparing the same 至Supported catalysts for the fixation of carbon dioxide into aliphatic polycarbonates and a process for preparing the same | 法律状态 | 说明书摘要 | The present invention provides a process for preparing supported zinc dicarboxylate catalysts with high activity for the copolymerization of carbon dioxide and epoxides by supporting zinc dicarboxylate on silica support. The zinc dicarboxylate may be synthesized from zinc oxide and dicarboxylic acid such as succinic acid, glutaric acid, adipic acid, pimelic acid and suberic acid. The silica support can be selected from the group consisting of aerosil, silica gel for chromatography or reagent grade silicon dioxide. The supporting process is performed in a planetary ball grinder under vacuum. |
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