US 7,482,300 B2
High activity ZSM-48 and methods for dewaxing
Wenyih F. Lai, Bridgewater, N.J. (US); Terry E. Helton, Bethlehem, Pa. (US); and Dominick N. Mazzone, Wenonah, N.J. (US)
Assigned to Exxonmobil Research and Engineering Company, Annandale, N.J. (US)
Filed on Dec. 08, 2006, as Appl. No. 11/636,288.
Claims priority of provisional application 60/749809, filed on Dec. 13, 2005.
Prior Publication US 2007/0131581 A1, Jun. 14, 2007
This patent is subject to a terminal disclaimer.
Int. Cl. B01J 29/06 (2006.01)
U.S. Cl. 502—60  [502/77] 19 Claims
 
1. A composition comprising ZSM-48 crystals having a silica:alumina molar ratio of 110 or less that is free of non-ZSM-48 seed crystals and free of ZSM-50,
wherein the ZSM-48 crystals are free of crystals having a fibrous morphology.