Binding and shaping of cracking catalyst fines
US5387566A · kind A · utility
2Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1994 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Mar 24, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for converting catalytic cracking catalyst fines to a shaped composition comprises acid-treatment of catalytic cracking catalyst fines, followed by separation and drying of the acid-treated fines; preparing a shapable mixture by mixing the dried catalyst fines with calcium aluminate, sodium silicate, phosphoric acid and water; shaping (preferably extruding) the obtained shapable mixture; and drying and thereafter calcining the obtained shaped particles. A shaped composition having high crash strength is obtained by this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.