Preparation of Rh/CPOL-BP1&PPh3 catalyat and its application to the hydroformylation of olefin
Rh/CPOL-BP1&PPh3 catalyst was prepared using acetyl acetone dicarbonyl rhodium as metal precursor,and new type of bisphosphine copolymer CPOL-BP1&PPh3 as support.The catalyst was charac-terized by TEM,BET,XPS and FT-IR.The results showed that the catalyst had a large specific surface area and abundant microporous mesoporous structure.Rh atoms were distributed on the support at(20～40)nm spacing.The optimum reaction conditions were reaction pressure 1.0 MPa,reaction temperature 100℃,ethylene flow rate 1 L·h-1,and ethylene conversion up to 95%.The yield of propanal remained unchanged after 400 h of TOS,and the catalyst had good stability.
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