Patent ID: 11926796
Assignee: KETJEN LIMITED LIABILITY COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 2:
3. A process for manufacturing an FCC catalysts comprising:
a. Adding, clay, boehmite, sodium stabilized basic colloidal silica to form a slurry;
b. Digesting the slurry with a monoprotic acid to a pH of less than 4;
c. Adding one or more zeolites to the slurry;
d. Adding an acidic colloidal silica at any time during or after steps (a)-(c) but before step (e);
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.