ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,440, issued on June 23, was assigned to LG Chem Ltd. (Seoul, South Korea).
"Method for preparing isopropyl alcohol" was invented by Sa Eun Park (Daejeon, South Korea), Sung Kyu Lee (Daejeon, South Korea) and Tae Woo Kim (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of preparing isopropyl alcohol that allows separation of a reaction product stream formed by reacting a propylene monomer and water in a reactor into an unreacted propylene monomer and isopropyl alcohol with high purity using an absorption column, a gas purification column, and an inert gas removal column."
The patent was filed on Dec. 5, 2021, under Appli...