US Patent Issued to KOREA ZINC, KEMCO on June 10 for "All-in-one nickel recovering method for nickel metal recovery from raw materials containing nickel" (South Korean Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,894, issued on June 10, was assigned to KOREA ZINC Co. LTD. (Seoul, South Korea) and KEMCO (Seoul, South Korea).

"All-in-one nickel recovering method for nickel metal recovery from raw materials containing nickel" was invented by Heon Sik Choi (Ulsan, South Korea) and Je Joong Lee (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein is a nickel recovering method, comprising: (A-i) a reduction heat treatment process for thermally treating a first raw material containing nickel and lithium; (B) a first leaching process for leaching the heat-treated product produced by the reduction heat treatment process; (A-ii) a roastin...