The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 2022
Filed:
Jul. 10, 2018
Northern Silicon Inc, Vancouver, CA;
Kevin Allan Dooley, Zurich, CA;
Elwood A. Morris, Nanaimo, CA;
Kevin Allan Dooley Inc., Zurich, CA;
Abstract
A system and a method for producing silicon from a SiO-containing material that includes solid SiO. The method uses a reaction vessel including a first section and a second section in fluid communication with said first section. The method includes: heating the SiO-containing material that includes the solid SiOto a SiO-containing material that includes liquid SiO, at a sufficient temperature to convert the solid SiOinto the liquid SiO; converting, in the first section, the liquid SiOinto gaseous SiOthat flows to the second section by reducing the pressure in the reaction vessel to a subatmospheric pressure; and reducing, in the second section, the gaseous SiOinto liquid silicon using a reducing gas. The reducing of the pressure is performed over a continuous range of interim pressure(s) sufficient to evaporate contaminants from the SiO-containing material, and removing by vacuum, the one or more evaporated gaseous contaminants.