Abstract
The oxidation of ethylene to acetaldehyde with a supported liquid-phase (SLP) Wacker catalyst has been investigated. The active phase of the catalyst, a chlorinated solution of PdCl2, CuCl2, and Cu(NO3)2, was supported on three aluminas of differing texture. The reaction was studied in the temperature range 40-80 ¯C as a function of the catalyst liquid loading. A unimodal size distribution was found desirable in optimizing overall activity, and maximum activity was obtained for a liquid loading of about 0.1 volume liquid catalyst phase/volume pores. Kinetic studies in excess oxygen suggest that the reaction is approximately first order in ethylene. Catalyst deactivation is probably related to a loss of Cl- during the reaction cycle.
Original language | English (US) |
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Pages (from-to) | 935-942 |
Number of pages | 8 |
Journal | Industrial and Engineering Chemistry Research |
Volume | 27 |
Issue number | 6 |
DOIs | |
State | Published - May 1 1988 |
ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
- Industrial and Manufacturing Engineering