US Patent Issued to Hatch on Jan. 13 for "Sodium sulfate by-product processing in lithium and battery chemical production" (Canadian Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,510, issued on Jan. 13, was assigned to Hatch Ltd..

"Sodium sulfate by-product processing in lithium and battery chemical production" was invented by Robert John Fraser (Oakville, Canada) and Evangelos Stamatiou (Toronto).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for battery chemical production, where a sodium sulfate stream is treated with an ion exchange process to provide potassium sulfate and sodium chloride. The sodium chloride may be treated with a chlor-alkali to produce sodium hydroxide for use upstream in the battery chemical production process."

The patent was filed on Oct. 31, 2022, under Application No. 17/977,523.

*For f...