ZHOU Limei1, JIANG Xiaohui1, QI Xaiolong1, FAN Hongwei1, FU Haiyan2, CHEN Hua2*
(1.Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchang 637002, China; 2.Institute of Homogeneous Catalysis, College of Chemistry, Sichuan University, Chengdu 610064, China )
Abstract: A supported Rh-TPPTS/CTAB-MMT catalyst was prepared by impregnating water-soluble rhodium phosphine complex (Rh-TPPTS) with montmorillonite (MMT) modified with cetyltrimethylammonium bromide (CTAB). The as-prepared catalyst was characterized by XRD, FTIR, TG, BET, 31P CP-MAS NMR, and dispersibility measurement. The results show that the water-soluble rhodium phosphine complex has been supported on the organic MMT successfully and this catalyst can be well dispersed in organic solvents. Moreover, this catalyst exhibits high activity in the hydroformylation of 1-decene. In the optimal reaction conditions (100 oC, 4 MPa syngas and toluene as solvent), the conversion of 1-decene was 93.0%, the selectivity and TOF (turnover frequency defined as the moles of aldehyde per mole Rh per hour) was 137 h-1.
Key words: montmorillonite; water-soluble rhodium phosphine complex; long chain olefin; hydroformylation; supported catalyst.
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Journal of Molecular Catalysis, Vol. 26, Issue 5, 2012, 399-405