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:
Jan. 16, 2018
Filed:
Aug. 20, 2013
Applicant:
Chemetics Inc., Vancouver, CA;
Inventor:
Amit Shah, Burnaby, CA;
Assignee:
Chemetics Inc., Vancouver, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B 1/28 (2006.01); C25B 1/34 (2006.01); C25B 9/06 (2006.01); C25B 15/08 (2006.01); C01D 3/16 (2006.01); C01F 7/34 (2006.01); C25B 1/26 (2006.01);
U.S. Cl.
CPC ...
C25B 15/08 (2013.01); C01D 3/16 (2013.01); C01F 7/34 (2013.01); C25B 1/265 (2013.01); C25B 1/34 (2013.01); C25B 9/06 (2013.01);
Abstract
A side stream subsystem can be used to remove impurity species from the recirculating alkali metal chloride solution in certain electrolysis systems. Silicon and/or aluminum species can be removed via precipitation after introducing an alkali metal hydroxide and magnesium chloride in a side stream line in the subsystem. The invention can allow for a substantial reduction in raw material and capital costs.