US Patent Issued to LG CHEM on Oct. 27 for "Recovery method and recovery apparatus of nitrile-based monomer" (South Korean Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,266, issued on Oct. 27, was assigned to LG CHEM Ltd. (Seoul, South Korea).

"Recovery method and recovery apparatus of nitrile-based monomer" was invented by Sang Cheol Shin (Daejeon, South Korea), Jun Seok Ko (Daejeon, South Korea), Yong Heon Cho (Daejeon, South Korea) and Joon Ho Shin (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a recovery method of a nitrile-based monomer including: supplying a feed stream including a nitrile-based monomer, a nitrogen compound, and water to a first distillation tower to separate the stream into a lower discharge stream and an upper discharge stream; condensing the upper dischar...