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:
Apr. 09, 2019
Filed:
Aug. 31, 2015
Applicant:
Sunedison, Inc., Maryland Heights, MO (US);
Inventors:
Sathy Ponnuswamy, Pearland, TX (US);
Nageswara Reddy Kota, Pasadena, TX (US);
Satish Bhusarapu, Sugarland, TX (US);
Puneet Gupta, Singapore, SG;
Assignee:
Corner Star Limited, Hong Kong, HK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/027 (2006.01); C01B 33/107 (2006.01); C01B 33/04 (2006.01); B01J 19/24 (2006.01); B01D 3/14 (2006.01);
U.S. Cl.
CPC ...
C01B 33/027 (2013.01); B01D 3/141 (2013.01); B01J 19/2445 (2013.01); C01B 33/04 (2013.01); C01B 33/107 (2013.01); C01B 33/1071 (2013.01); C01B 33/10778 (2013.01); B01J 2219/24 (2013.01);
Abstract
Methods for separating halosilanes that involve use of a distillation column having a partition that divides the column into portions for producing three product fractions are disclosed. Methods and systems for producing silane by disproportionation of halosilanes that use such columns and methods for producing polycrystalline silicon are also disclosed.