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在110—140℃、总压3.92—9.81MPa,用甲苯、正丁醇、正己烷和丙酮作溶剂,考察了HFeCo_3(CO)_(12)对丙烯氢甲酰化反应的催化作用。在钴浓度0.2w%、140℃、3.92MPa、2小时条件下,丙烯转化率达94%,醛选择性93%。“原位”红外分析表明,HFeCo_3(CO)_(12)在加热过程与氢甲酰化反应中都分解了,真正的催化活性体为 HCo(CO)_4。使用丙酮溶剂,将 HFeCo_3(CO)_(12)与 Co_2(CO)_8+Fe(CO)_5+(C_2H_5)_4NI 两催化体系在上述条件下加以比较,后者催化活性约高10%。
The catalytic effect of HFeCo_3 (CO) _ (12) on the propane hydroformylation was investigated by using toluene, n-butanol, n-hexane and acetone as solvent at 110-140 ℃ and total pressure of 3.92-9.81MPa. Under the conditions of cobalt concentration of 0.2w%, 140 ℃, 3.92MPa and 2 hours, the conversion of propylene was 94% and the selectivity of aldehyde was 93%. “In-situ” infrared analysis showed that HFeCo_3 (CO) _ (12) decomposed during the heating process and hydroformylation reaction, and the real catalytic activity was HCo (CO) _4. The catalytic activities of HFeCo_3 (CO) _ (12) and Co_2 (CO) _8 + Fe (CO) _5 + (C_2H_5) _4NI were compared under the above conditions using acetone solvent, the latter being about 10% higher.