Process for the production of finely divided oxides of metals
US4355015A · kind A · utility
5Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1980 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | Jun 6, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F7/302
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The residual gas obtained in the pyrogenic production of metal oxides or metalloid oxides contain besides the desired product elemental chlorine if a chlorine containing starting material is employed. After cooling the residual gas the elemental chlorine is reacted to form hydrogen chloride by using an aqueous solution of a reducing agent and in this form the chlorine is subsequently washed out of the residual gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.