B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/15
B01J 29/06 (2006.01) B01J 20/18 (2006.01) B01J 29/08 (2006.01) B01J 29/18 (2006.01) B01J 29/50 (2006.01) B01J 29/60 (2006.01) C01B 39/02 (2006.01)
Patent
CA 1190206
- 39 - Abstract Described herein is a process for enhancing the hydrophobicity of crystalline zeolites and also crystalline zeolitic aluminosilicate compositions which have enhanced hydrophobic character and modified catalytic properties. The crystalline zeolitic aluminosilicate compositions are contacted with chlorine gas at 200°C to about 1000°C to dealuminize and/or decationize their structrue and thereafter are purged with nitrogen gas to remove any entrapped chlorine gas. The crystalline zeolitic aluminosilicate composition can further undergo washing with water to remove any entrapped metal chloride species. The crystalline zeolitic aluminosilicate compositions of this invention are useful as selective hydrophobic absorbents and catalysts.
423941
Lok Brent M.
Messina Celeste A.
Hopley William G.
Union Carbide Corporation
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