ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,156, issued on Jan. 20, was assigned to HUANENG CLEAN ENERGY RESEARCH INSTITUTE (Beijing).
"System and method for recovering metal resources in coal ash by molten salt electrolysis" was invented by Jinhang Fan (Beijing), Shiqing Wang (Beijing), Run Song (Beijing), Dongfang Guo (Beijing), Lianbo Liu (Beijing) and Shiwang Gao (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for recovering metal resources in coal ash by molten salt electrolysis includes: calcinating the coal ash for decarburization to obtain the decarburized coal ash; subjecting the decarburized coal ash to ball milling to obtain coal ash powders; pressing the coal ash ...