Removal of hydrogen-containing silanes from organosilane mixtures
US4985579A · kind A · utility
7Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1990 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Feb 8, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The instant invention is a process for the removal of hydrogen-containing silane impurities from organosilanes with similar boiling points. In the instant invention, the hydrogen-containing silane is reacted with a hydrogen halide to replace the hydrogen on the silane with a halide and create a modified silane. The substitution of the heavier halide for the hydrogen, increases the boiling point of the modified silane. This increase in boiling point facilitates separation by distillation of the modified silane impurity from the desired organosilanes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.