Method of producing silicon

US4188368A · kind A · utility

Inventors

• Robert A. Administrator of the National Aeronautics and Space Frosch · La Cañada Flintridge, US
• Charles B. Wolf · Irwin, US
• Thomas N. Meyer · Murrysville, US

Key dates

• Filing date: Mar 29, 1978
• Grant date: Feb 12, 1980
• Expiry date: Mar 29, 1998

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/0894
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A liquid reactant injector assembly especially suited for the injection of liquid reactant into a high temperature metal reductant vapor and carrier gas stream for the production of metal is disclosed. The assembly is especially adapted for the continuous production of high purity silicon by the reduction of SiCl.sub.4 with sodium. The assembly includes a refractory-lined, hollow, metal shell having a plurality, suitably ten, equally-spaced, concentric, radially directed ports provided in the shell and wall. A hydraulic, atomizing type, spray nozzle is sealingly mounted in each of the ports recessed from the inner wall surface.