摘要：

Amorphous Co-P-B catalysts with different Co/P and P/B molar ratios were prepared by chemical reduction method.The catalysts were characterized with XRD,ICP-Mass and N2 adsorption-desorption isotherm.The catalysts were evaluated in the hydroformylation of 1-octene under the reaction conditions of 5.0 MPa and 120 ℃.The results showed that amorphous Co-P-B catalysts exhibited relatively high activity and selectivity in the hydroformylation of 1-octene.The molar ratios of Co/P and P/B,amorphous property and surface area affected the activity and selectivity of the Co-P-B catalysts,and the conversion and selectivity were enhanced by adding appropriate amount of P.Over the Co-P-B catalyst(Co 85.4%,P 3.3%,molar fraction),97.2% conversion of 1-octene and 99.5% selectivity of C9-aldehyde were obtained under the reaction conditions employed in this study.

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