US Patent Issued to Fudan University on June 2 for "Separation and purification method of 2-nitroethanol" (Chinese Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,848, issued on June 2, was assigned to Fudan University (Shanghai).

"Separation and purification method of 2-nitroethanol" was invented by Fener Chen (Shanghai) and Minjie Liu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A separation and purification method of 2-nitroethanol, including: (a) reacting paraformaldehyde with nitromethane in the presence of a base to obtain a mixture of 2-nitroethanol (I), 2-nitro-1,3-propanediol (II) and tris(hydroxymethyl) nitromethane (III); and (b) selecting an extraction solvent in which 2-nitroethanol (I), 2-nitro-1,3-propanediol (II) and tris(hydroxymethyl) nitromethane (III) are different in solubility...