Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Activity of 20 wt.% MO2/Al2O3 catalysts (M = Mn or Ce) in ketonization of 2-methylpropanoic and 2,2-dimethylpropanoic anhydrides; LHSV = 3 cm3 g−1 h−1, VN2 = 3 dm3 h−1.
| Anhydride | Active Phase |
Conversion/Yields of Ketones (%)/(%) | ||||
|---|---|---|---|---|---|---|
| 623 K | 648 K | 673 K | 698 K | 723 K | ||
| ((CH3)2CHCO)2O | -- 1 | 1/0 | 2/0 | 4/0 | 6/0 | 15/0 |
| CeO2 | 5/1 | 8/5 | 22/16 | 40/37 | 57/55 | |
| MnO2 | 5/1 | 9/4 | 11/6 | 60/53 | 87/80 | |
| ((CH3)3CCO)2O | CeO2 | -- | -- | 36/0 | 60/0 | 75/0 |
| MnO2 | -- | -- | 42/0 | 69/0 | 84/0 | |
1 Pure alumina.
