Antimony tris(dihydrocarbyl phosphite) and preparation thereof
US4209453A · kind A · utility
7Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1978 |
| Grant date | Jun 24, 1980 |
| Priority date | — |
| Expiry date | Jul 25, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/521
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A cracking catalyst is treated with an antimony tris(dihydrocarbyl phosphite) to passivate contaminating metals whenever these metals have been deposited on the catalyst. Unused or used catalyst can be treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.