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Selectivity of Rhodium-Catalyzed Hydroformylation of 1-Octene in a Thermomorphic Solvent System

Shaharun, Maizatul Shima and B.K., Dutta and H., Mukhtar (2010) Selectivity of Rhodium-Catalyzed Hydroformylation of 1-Octene in a Thermomorphic Solvent System. In: International Conference on Fundamental and Applied Sciences (ICFAS2010), 15 to 17 June 2010, Convention Centre, Kuala Lumpur.

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Abstract

The use of temperature dependent multicomponent solvent (TMS) process, in which the catalyst remains as a residue in one of the liquid phases and the product goes preferably to the other liquid phase, can be an enabling strategy of commercial application of hydroformylation processes with high selectivity, efficiency and ease of product separation and catalyst recovery. This paper describes the isomer distribution of the formation of nnonanal and 2-methyloctanal for the rhodium-catalyzed homogeneous hydroformylation of 1-octene using HRh(CO)[P(OPh)3]3 catalyst in TMS-system consisting of propylene carbonate (PC), dodecane and 1,4-dioxane. Effects of the concentration of 1-octene and catalyst, temperature, composition of syngas (H2/CO), total pressure of syngas and ligand to catalyst [P(OPh)3/HRh(CO)(PPh3)3] ratio on the selectivity of the nonylaldehyde products (n/iso ratio) have been measured. Highest selectivity for n-nonanal with average catalyst activity is observed at temperature of 363 K, equimolar of CO/H2, total syngas pressure of 1.5 MPa and ligand/catalyst ratio of 12 in TMS composition of 0.1/0.3/0.6. This study is practically useful for the optimization of n-nonanal production by hydroformylation of 1-octene.

Item Type:Conference or Workshop Item (Lecture)
Subjects:T Technology > TP Chemical technology
Q Science > QD Chemistry
Academic Subject Three:petroleum engineering
Departments / MOR / COE:Departments > Fundamental & Applied Sciences
ID Code:3989
Deposited By: Dr Maizatul Shima Shaharun
Deposited On:30 May 2011 11:47
Last Modified:20 Mar 2017 01:59

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