Process for producing dithionites
US4177247A · kind A · utility
1Cited by
4References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1978 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | May 8, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/66
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Dithionites are produced by reacting hydroquinones with bisulfites, pyrosulfites, alkyl sulfites, or aryl sulfites, substances capable of forming these salts upon reacting with sulfur dioxide or sulfurous acid, and sulfur dioxide or sulfurous acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.