ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,103, issued on Feb. 17, was assigned to WATTS & FISHER PTY LTD (Western Australia, Australia).
"Dissolution process" was invented by Harry Philip Watts (Western Australia, Australia) and Tonya Jean Fisher (Western Australia, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for recovering metals from metal-bearing material, said process comprising the step of contacting the metal-bearing material with condensed phosphoric acid at a temperature of greater than 215deg C. and less than 300deg C. for a period of time sufficient to at least partially dissolve the metal-bearing material; to provide a leach...