钴基催化剂催化环己烯氢甲酰化研究

以氯化钴和锰铁合金粉为钴基催化体系的前驱体,研究了该催化剂体系对环己烯氢甲酰化反应制备环己烷基甲醛的催化性能;并考察了溶剂、温度、压力等反应条件的影响.实验结果表明,选用四氢呋喃作为溶剂,反应的活性较高,选择性较好.在反应温度为145℃,合成气压力为8.0MPa,钴与烯烃的物质的量的比为0.01,反应时间为0.5h条件下,能得到环己烯的转化率为89%,环己烷基甲醛的选择性达到96%的结果.

Cobalt-Based Catalyst for Hydroformylation of Cyclohexene

Using cobalt chloride and ferromanganese as precursor of cobalt-based catalyst, the performance of the catalyst for hydroformylation of cyclohexene was studied. The influences of solvent, reaction temperature and pressure in the system on the reaction were investigated. The results reveal that THF is a good solvent for the reaction and the optimal reaction condition is p_total＝8.0 MPa, n_Co/n_alkene＝0.01 and t＝145 ℃. Under the optimal reaction condition the conversion of cyclohexene is 89% and the selectivity to cyclohexanecarboxaldehyde is 96%.