US Patent Issued to RIN KAGAKU KOGYO on Feb. 10 for "Method for purifying yellow phosphorus and method for producing high-purity phosphoric acid" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,581, issued on Feb. 10, was assigned to RIN KAGAKU KOGYO Co. LTD. (Imizu, Japan).

"Method for purifying yellow phosphorus and method for producing high-purity phosphoric acid" was invented by Manabu Takanaga (Toyama, Japan), Norihiro Tsukada (Toyama, Japan), Katsuhiro Yano (Toyama, Japan) and Akinori Shimono (Toyama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a method for purifying yellow phosphorus including bringing yellow phosphorus and wood-based activated carbon into contact with each other. The disclosure also relates to a method for producing high-purity phosphoric acid including generating a gas of phospho...