ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,298, issued on Aug. 4, was assigned to Maruzen Petrochemical Co. LTD. (Tokyo).
"Method of purifying phosphorus compound and method of reusing the same" was invented by Yuta Saga (Ichihara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "[Problem to be Solved] An object of the present invention is to provide a method of purifying a phosphorus compound, which method is capable of reducing the generation of a by-product during distillation.[Solution to Problem] The method of method of purifying a phosphorus compound according to the present invention includes the steps of: obtaining a mixture containing a specific phosphorus compound, a specific al...