Catalyst for reducing formation of chlorinated dioxins in manufacture of chlorinated phenols
US4400556A · kind A · utility
2Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1981 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | Jun 22, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/62
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention covers the use of novel co-catalysts as inhibitors that reduce the formation of undesirable chlorinated dioxins during the preparation of pentachlorophenol and tetrachlorophenol from phenol or lower chlorinated phenols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.