Abstract: A propylene hydroformylation system in presence of the rhodium-phosphine catalyst has been monitored with a gas-liquid chromatograph. It has been proved that the system is a chemical oscillation system in certain conditions.
The experiment has shown that the oscillation of this system requests[C_3H_6]/[H_2+CO]>1 in gas phase.
The action of the solvent is quite special, i.e.a suitable quantity of tripolymer of n-butyladehyde has to exist. The hydroformylation reaction will not go on if the content of the tripolymer is too high, and the oscillation phenomenon will not occur if its content is too low.
Since until now there are no reports about the effect of butyladehyde properties on this catalytic reaction and about the concentration oscillation phenomenon of the rhodium-phosphine catalyst system, the progressive study of this system will be ver yinteresting.