Reaction equation
O.[CH3:2][C:3]1[CH:4]=[CH:5][C:6]([CH3:9])=[CH:7][CH:8]=1.[C:10]1(C)C=CC=CC=1>>[CH2:2]([C:3]1[CH:8]=[CH:7][C:6]([CH3:9])=[CH:5][CH:4]=1)[CH3:10]Participants
4
Conditions
- Temperature
- 90 °C
Procedure
The same Ca-P-ZSM-5 catalyst is then treated with a stream of air which is first moistened with water at ambient temperature and is then passed for 14 hours at the rate of 300 cc/minute into the catalyst bed maintained at 90° C. After calcination at 500° C. for 1 hour, disproportionation and ethylation of toluene are again carried out under the same conditions used with the untreated catalyst. Toluene disproportionation gives 12.6% toluene conversion with a para-selectivity of 66.3% p-xylene in xylenes. Toluene ethylation gives 19.1% conversion of toluene with a para-selectivity of 88.7% p-ethyltoluene in ethyltoluenes.
Workup
- waitAfter calcination at 500° C. for 1 hour
Sources & evidence
- ORD record
- ord-4742f2e076f64e36a3ef7f59f4ce2396
- Source dataset
- uspto-grants-1985_10
- Patent number
- US04548914
Linked notes
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