Abstract
Because of the irreplaceable nature of hydroformylation, it has been a hot topic in recent decades. The catalyst for hydroformylation usually takes the transition metal as the center atom. However, the high price of metal restricts the large-scale industrialization of hydroformylation reaction. In this paper, a new type of 1-polyethylene glycol monomethyl ether-3-methyl imidazole rhodium ionic liquid catalyst was used to study the hydroformylation of catalytic octene. The reaction was carried out in a 75mL autoclave. The optimum reaction conditions were obtained by experiments: when the reaction time was 5h, the reaction pressure was 4MPa, and the reaction temperature was 100°C, the conversion of octene reached 90.2%, and the yield of nonylaldehyde reached 70.6%. The new ionic liquid catalyst used in the reaction has the characteristics of “high temperature catalysis, low temperature phase separation”. It laid the foundation for the recovery of the catalyst.
Published Version
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