US Patent Issued to IHI on Sept. 1 for "Method for recovering metal from metal element-containing substance" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,291, issued on Sept. 1, was assigned to IHI Corp. (Tokyo).

"Method for recovering metal from metal element-containing substance" was invented by Yasuyuki Fukushima (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for recovering a metal from a metal element-containing substance includes: bringing a metal element-containing substance into contact with a dissolving solution containing nitric acid and a salt to obtain a solution containing a metal ion or metal complex ion; and immersing an alga in the solution containing a metal ion or metal complex ion to produce a metal, wherein the concentration of nitric acid in the dissolving solution...