ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,514, issued on Jan. 13, was assigned to JX METALS CIRCULAR SOLUTIONS Co. LTD. (Tokyo).
"Method for producing mixed metal salt" was invented by Junichi Arakawa (Hitachi, Japan) and Kazunori Tajiri (Hitachi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing mixed metal salts containing manganese ions and at least one of cobalt ions and nickel ions, the method including: an Al removal step of subjecting an acidic solution containing at least manganese ions and aluminum ions, and at least one of cobalt ions and nickel ions, to removal of the aluminum ions by extracting the aluminum ions into a solvent, the acidic solution being...