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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.
Using cobalt chloride and ferromanganese as the precursor of the cobalt-based catalyst system, the catalytic performance of the catalyst system for the cyclohexanecarbaldehyde formation by hydroformylation of cyclohexene was studied. The effects of solvent, temperature, pressure and so on Reaction conditions.The experimental results show that the reaction is more active and selective with tetrahydrofuran as the solvent.When the reaction temperature is 145 ℃, the pressure of the synthesis gas is 8.0MPa, the molar ratio of cobalt to olefin is 0.01 , And the reaction time was 0.5h, the conversion of cyclohexene was 89% and the selectivity of cyclohexanecarboxaldehyde was 96%.