ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,507, issued on Jan. 13, was assigned to Kazuhiro Nakanishi (Kagawa, Japan).
"Method for producing relating to industrial mass production of high-purity artificial zeolite" was invented by Mitsuru Kubota (Uruma, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high-purity artificial zeolite is industrially mass produced by carrying out osmosis treatment of fly ash in an alkaline aqueous solution, subsequently carrying out the osmosis treatment again with an acidic aqueous solution of pH 1.0 or less obtained by adding acid to the osmotic aqueous solution of fly ash, then performing solid-liquid separation while water wash and dewatering in a cen...