Process for preparing monohydrogentrihalosilanes
US10040689B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Nov 25, 2015 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Nov 25, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for preparing a product including a monohydrogentrihalosilane is disclosed. The process includes the steps of: 1) initially charging a reactor with a contact mass including both fresh silicon and recycled contact mass, where the recycled contact mass is obtained from during or after a production phase of an inorganic Direct Process reaction for production of a monohydrogentrihalosilane; and thereafter 2) feeding to the reactor a hydrogen halide and additional fresh silicon, thereby forming the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.