US Patent Issued to TIANQI LITHIUM, TIANQI LITHIUM GENESIS TECHNOLOGY (SHENZHEN) on Sept. 23 for "Method of extracting lithium from spodumene and meanwhile recovering low iron and low sulfur silicon aluminum micro-powder, high purity gypsum, tantalum niobium concentrate and lithium rich iron material" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,571, issued on Sept. 23, was assigned to TIANQI LITHIUM Corp. (Suining, China) and TIANQI LITHIUM GENESIS TECHNOLOGY (SHENZHEN) LTD. (Shenzhen, China).

"Method of extracting lithium from spodumene and meanwhile recovering low iron and low sulfur silicon aluminum micro-powder, high purity gypsum, tantalum niobium concentrate and lithium rich iron material" was invented by Zhigang Yin (Suining, China), Xingxing Deng (Suining, China), Jie Zhang (Suining, China), Chuan Xu (Suining, China) and Yibao Gao (Suining, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of extracting lithium from spodumene and meanwhile recovering low iron and low s...