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:
Jul. 04, 2017
Filed:
Jul. 01, 2014
Applicant:
Rec Silicon Inc, Moses Lake, WA (US);
Inventors:
Pei Yoong Koh, Moses Lake, WA (US);
Anthony D. Thompson, Moses Lake, WA (US);
Assignee:
REC Silicon Inc, Moses Lake, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/107 (2006.01);
U.S. Cl.
CPC ...
C01B 33/10778 (2013.01);
Abstract
Methods of recovering hydrohalosilanes from reaction residues are disclosed. An inorganic halosilane slurry comprising (i) tetrahalosilane, trihalosilane, dihalosilane, or any combination thereof, (ii) silicon particles, and (iii) heavies is passed through a thin-film dryer to remove halosilanes and form a solid residue comprising silicon particles. Heavies also may be removed as the slurry passes through the thin-film dryer.