Catalytic performance of the series of Zn/Al/Ce catalystsa.
| Catalysts | Aniline conversion (%) | MPC yield (%) | Selectivity (%) | |||
|---|---|---|---|---|---|---|
| MPC | NMA | DMA | DPU | |||
| Zn/Al/Ce0 | 91.0 | 57.6 | 63.3 | 10.9 | 24.3 | 0.7 |
| Zn/Al/Ce1 | 94.5 | 63.1 | 66.8 | 7.1 | 24.9 | 0.6 |
| Zn/Al/Ce2.5 | 95.8 | 78.2 | 81.6 | 4.3 | 13.3 | 0.4 |
| Zn/Al/Ce5 | 94.6 | 72.0 | 76.1 | 4.1 | 18.4 | 0.7 |
| Zn/Al/Ce7.5 | 95.6 | 72.6 | 75.9 | 5.3 | 17.7 | 0.6 |
| Zn/Al/Ce10 | 92.6 | 57.5 | 62.1 | 6.6 | 29.8 | 0.8 |
a
Reaction conditions: DMC 19.35 g, aniline 1 g (molar ratio of DMC to aniline is 25), catalyst 0.253 g, reaction temperature 200 °C, reaction time 7 h.