ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,142, issued on Dec. 23, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Process for the purification of lithium salts" was invented by Wolfgang Rohde (Ludwigshafen, Germany), Regina Vogelsang (Ludwigshafen, Germany), Kerstin Schierle-Arndt (Ludwigshafen, Germany), Mattias Voges (Ludwigshafen, Germany), Birgit Gerke (Ludwigshafen, Germany), Anne-Marie Caroline Zieschang (Ludwigshafen, Germany) and Matthias Rauls (Ludwigshafen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for the recovery of lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of A) providing a crude li...