	US 11,926,796 B2
	FCC catalyst with more than one silica, its preparation and use
Amir Sabahi, Missouri City, TX (US); Andrew J Loebl, Charlotte, NC (US); Sandra Gavalda, Manvel, TX (US); Julie Francis, Webster, TX (US); and Eswaramoorthi Iyyamperumal, Houston, TX (US)
Assigned to Ketjen Limited Liability Company, Houston, TX (US)
Filed by Albemarle Corporation, Charlotte, NC (US)
Filed on Jul. 15, 2022, as Appl. No. 17/865,555.
Application 17/865,555 is a division of application No. 16/322,779, granted, now 11,427,764, previously published as PCT/US2017/045580, filed on Aug. 4, 2017.
Claims priority of provisional application 62/370,809, filed on Aug. 4, 2016.
Prior Publication US 2022/0348829 A1, Nov. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01J 29/06 (2006.01); B01J 29/00 (2006.01); B01J 29/08 (2006.01); B01J 29/40 (2006.01); B01J 29/70 (2006.01); B01J 29/80 (2006.01); B01J 29/83 (2006.01); B01J 29/85 (2006.01); B01J 35/00 (2006.01); B01J 37/00 (2006.01); B01J 37/03 (2006.01); B01J 37/10 (2006.01); B01J 37/28 (2006.01); B01J 37/30 (2006.01); C10G 11/05 (2006.01); C10G 11/18 (2006.01)

CPC C10G 11/05 (2013.01) [B01J 29/005 (2013.01); B01J 29/06 (2013.01); B01J 29/061 (2013.01); B01J 29/084 (2013.01); B01J 29/085 (2013.01); B01J 29/088 (2013.01); B01J 29/40 (2013.01); B01J 29/70 (2013.01); B01J 29/7007 (2013.01); B01J 29/7038 (2013.01); B01J 29/7057 (2013.01); B01J 29/80 (2013.01); B01J 29/83 (2013.01); B01J 29/85 (2013.01); B01J 35/0013 (2013.01); B01J 37/0009 (2013.01); B01J 37/0045 (2013.01); B01J 37/036 (2013.01); B01J 37/038 (2013.01); B01J 37/10 (2013.01); B01J 37/28 (2013.01); B01J 37/30 (2013.01); C10G 11/18 (2013.01); B01J 2029/062 (2013.01); B01J 2029/081 (2013.01); B01J 2229/36 (2013.01); B01J 2229/42 (2013.01); C07C 2527/14 (2013.01); C07C 2527/16 (2013.01); C07C 2527/167 (2013.01); C07C 2527/18 (2013.01); C07C 2527/182 (2013.01); C07C 2529/06 (2013.01); C07C 2529/08 (2013.01); C07C 2529/40 (2013.01); C07C 2529/70 (2013.01); C07C 2529/83 (2013.01); C07C 2529/85 (2013.01)]

3 Claims

1. A process for manufacturing an FCC catalyst comprising:

a. Adding, clay, boehmite and sodium stabilized basic colloidal silica to form a slurry;

b. Digesting the slurry with a monoprotic acid to a pH of less than 4.0;

c. Adding one or more zeolites to the slurry;

d. Adding polysilicic acid made separately and added inline;

e. Mixing the slurry and then destabilizing the slurry by raising the pH to above 4.0

f. Shaping and collecting the resulting FCC Catalyst.