Making of contact mass for organohalosilane preparation and preparation of organohalosilanes
US7521574B2 · kind B2 · utility
0Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2005 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Oct 18, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Organohalosilanes are prepared by charging a reactor with a contact mass comprising metallic silicon and a catalyst and feeding an organohalide-containing gas to the reactor. The contact mass is prepared by premixing metallic silicon and a tin compound and heat treating the premix at 300-600° C. in an inert gas atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.