高分子配合物的稳定性和反应机理研究

Methanol carbonylation is main technology for manufacturing acetic acid and acetic anhydride. The processes employ expensive Rh catalysts dissolved in the liquid phase. Although the processes are highly effective, they have certain disadvantages that the successful recovery and recycle of the catalyst can only be accomplished with great difficulty and the adding of HI and water makes the erosion of equipment become a noticeable problem. So a new process for acetic acid manufacture using heterogeneous catalysts based on a non-expensive metals could provide greater theoretical and economic incentive to produce this valuable commodity chemical. In this project, we used polymer supports to demobilize the homogeneous catalysts, research work concentrated on the stability of polymer supports and the carbonylation mechanism. Through these research works we established a basic model of methanol carbonylation by this novel catalyst, and prepared a series of polymer anchoring catalyst. All this presents base for further research.

本项目研究内容在于，针对某些金属羰基配合物在催化反应中由于一氧化碳保护不足而不稳定的普遍现象，采用特殊结构的高分子配体形成新型结构催化剂，利用其分子内弱配键可以取代强配键的结构特征，制备系列不对称并含有空配位原子的螯合型羰基金属配合物用于C1化学反应。前期工作表明，该类配合物具有优异的催化活性，且同时其反应稳定性提高100嬉陨稀８美嘈痛呋粱硌芯考爸な担诶砺凵匣蛟谑导视τ蒙暇兄傅夹砸庖濉