Method for upgrading of silicon-containing residues obtained after leaching of copper-containing residues from chlorosilane synthesis
US5772728A · kind A · utility
1Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1997 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | May 19, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for upgrading silicon-containing solid residues obtained after leaching of copper from copper-containing residues from direct synthesis of organochlorosilanes. Solid residue, optionally together with an oxidation agent, is supplied to a smelting furnace where the residues are melted and form a molten metallic phase substantially containing silicon and a calcium silicate slag and tapping of the molten metallic phase and an inert slag from the smelting furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.