US Patent Issued to SOLUGEN on July 8 for "Compositions and methods for improved precious metal extraction from ore" (Texas Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,888, issued on July 8, was assigned to SOLUGEN INC. (Houston).

"Compositions and methods for improved precious metal extraction from ore" was invented by Jun Su An (Houston) and Frederyk Ngantung (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for precious metal extraction comprises contacting a precious metal-containing ore with an improved cyanide extraction agent under conditions suitable for the formation of a coated precious metal-containing ore where the extraction agent comprises (i) a cement and (ii) a cement retarder; and contacting the coated precious metal-containing ore with a cyanide solution to form soluble precious met...