Process for regeneration of catalysts
US5716895A · kind A · utility
13Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1997 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Jun 2, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J38/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A simple and excellent process for the regeneration of heteropolyacid catalysts can be provided. A heteropolyacid catalyst, e.g. a phosphomolybdic acid catalyst, whose activity has been lowered can be regenerated by dissolving and/or suspending it in an aqueous medium and then treating with an inorganic ion-exchange material, e.g. crystalline antimonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.