Method for producing chloropolysilane and fluidized-bed reactor
US9139442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2012 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Jul 26, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00274
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a method for producing chloropolysilane by which the yield of a fluid reaction to produce the chloropolysilane is improved while blockage in a reactor caused by attachment of higher-order silicon chloride as a by-product is prevented. In producing the chloropolysilane by reacting fluidized silicon particles or silicon alloy particles with a chlorine gas, an outlet filter is provided, upstream from a product outlet that releases a reaction product, above the area in which the silicon particles or silicon alloy particles are fluidized inside a reaction tank. The outlet filter prevents fine particles blown up by fluidization from flowing out of the reaction tank through the product outlet. A temperature of the outlet filter is set in a range of 210 to 350° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.