Issue 4, 2019

Kinetic evaluation of the hydroformylation of the post-metathesis product 7-tetradecene using a bulky phosphite-modified rhodium catalyst

Abstract

The reaction engineering kinetics for the hydroformylation of the post-metathesis product 7-tetradecene using the bulky phosphite-modified rhodium catalyst Rh-tris(2,4-di-tertbutylphenyl)phosphite were evaluated. The reaction was performed at different temperatures (60 to 90 °C), catalyst concentrations (0.5 to 1 mM), hydrogen partial pressures (15 to 25 bar) and carbon monoxide partial pressures (15 to 25 bar). The reaction system is well described by three interdependent mole balance equations in combination with a phenomenological mechanism-based rate law equation derived for the bulky phosphite ligand coordinated to rhodium. The kinetics were thus found to be first-order in alkene and catalyst concentrations (above a critical concentration), negative-order in carbon monoxide and zero-order in hydrogen. The activation energy for the hydroformylation reaction was calculated to be 68 kJ mol−1.

Graphical abstract: Kinetic evaluation of the hydroformylation of the post-metathesis product 7-tetradecene using a bulky phosphite-modified rhodium catalyst

Article information

Article type
Paper
Submitted
02 Oct 2018
Accepted
23 Jan 2019
First published
25 Jan 2019

React. Chem. Eng., 2019,4, 695-704

Kinetic evaluation of the hydroformylation of the post-metathesis product 7-tetradecene using a bulky phosphite-modified rhodium catalyst

N. C. C. Breckwoldt, N. J. Goosen, H. C. M. Vosloo and P. Van der Gryp, React. Chem. Eng., 2019, 4, 695 DOI: 10.1039/C8RE00239H

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