Oxidation-reduction reagents for a wet desulfurization process and a process for preparing same
US4276187A · kind A · utility
3Cited by
4References
4Claims
0Family size
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Key dates
| Filing date | Apr 4, 1979 |
| Grant date | Jun 30, 1981 |
| Priority date | — |
| Expiry date | Apr 4, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10K1/128
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oxidation-reducing reagent for a wet desulfurization process, which comprises (a) one or more compounds selected from the group consisting of salts of substituted anthraquinonesulfonic acids of the general formulas: ##STR1## wherein M stands for a sodium atom, a potassium atom or an ammonium group, and n is an integer of 1 or 2, or (b) a mixture of a salt of anthraquinone-2,7-disulfonic acid and one or more compounds shown by the general formula (I) and/or (II), as well as a process for preparing the compounds of the general formulas (I) and (II).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.