The Reaction Process of Propene Hydroformalytion on PPh3-Rh/SBA-15 Catalyst Studied by In Situ High-ressure MAS NMR Spectroscopy

Chinese Journal of Magnetic Resonance ›› 2009, Vol. 26 ›› Issue (1): 37-43.

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The Reaction Process of Propene Hydroformalytion on PPh₃-Rh/SBA-15 Catalyst Studied by In Situ High-ressure MAS NMR Spectroscopy

LAN Xi-jie^1,3; ZHANG Wei-ping¹; YAN Li²; DING Yun-jie²; HAN Xiu-wen¹; LIN Li-wu¹; BAO Xin-he^1*

[1.State Key Laboratory of Catalysis (Dalian Institute of Chemical Physics,
Chinese Academy of Sciences), Dalian 116023, China; 2.Natural Gas Utilization and Applied Catalysis Laboratory (Dalian Institute of Chemical Physics,
Chinese Academy of Sciences), Dalian 116023, China; 3.Graduate School of Chinese Academy of Sciences, Beijing 100049, China]

Received:2008-09-08 Revised:2008-09-18 Online:2009-03-05 Published:2009-12-05
Contact: BAO Xin-he

Abstract

Abstract: Rh/SBA-15 and ligand (triphenyl phosphine PPh₃) modified heterogeneous PPh₃-Rh/SBA-15 catalysts for the reaction of propene hydroformylation were prepared. The reaction process of propene hydroformylation on the Rh/SBA-15 and PPh₃-Rh/SBA-15 catalysts was studied by in situ high-pressure（HP）MAS NMR techniques under the batch-like conditions. ¹³C MAS NMR spectra indicated that, with increasing temperature, propene and syngas could be converted into butyraldehyde on Rh/SBA-15 catalyst while the PPh₃ modified heterogeneous PPh₃-Rh/SBA-15 catalyst exhibited higher n/i ratio of butyraldehyde at 1.0 MPa.

Key words: NMR, hydroformylation, in situ high-pressure MAS NMR, Rh/SBA-15 catalyst, reaction process

CLC Number:

O482.53

LAN Xi-jie^1,3; ZHANG Wei-ping¹; YAN Li²; DING Yun-jie²; HAN Xiu-wen¹; LIN Li-wu¹; BAO Xin-he^1*
. The Reaction Process of Propene Hydroformalytion on PPh₃-Rh/SBA-15 Catalyst Studied by In Situ High-ressure MAS NMR Spectroscopy[J]. Chinese Journal of Magnetic Resonance, 2009, 26(1): 37-43.

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The Reaction Process of Propene Hydroformalytion on PPh₃-Rh/SBA-15 Catalyst Studied by In Situ High-ressure MAS NMR Spectroscopy

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