| 发明名称 |
Selective surface dealumination of zeolites |
| 摘要 |
A process for the selective surface dealumination of a zeolite having a Constraint Index greater than 1 comprising contacting the zeolite with dicarboxylic acid, such as oxalic acid. The resultant surface-dealuminated zeolite exhibits improved selectivity for the conversion of cyclohexanone oxime to epsilon caprolactam. |
| 申请公布号 |
EP0570136(B1) |
申请公布日期 |
1998.08.12 |
| 申请号 |
EP19930303388 |
申请日期 |
1993.04.29 |
| 申请人 |
MOBIL OIL CORPORATION |
发明人 |
APELIAN, MINAS ROBERT;BELL, WELDON KAY;FUNG, SHIU LUN ANTHONY;HAAG, WERNER OTTO;VENKAT, CHAYA RAO |
| 分类号 |
C01B39/36;B01J29/40;B01J29/65;B01J29/70;C01B39/02;C01B39/38;C01B39/42;C01B39/44;C07D201/04 |
主分类号 |
C01B39/36 |
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