US Patent Issued to Johnson Matthey Davy Technologies on Jan. 13 for "Process for refining a crude ethylene glycol stream" (British Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,549, issued on Jan. 13, was assigned to Johnson Matthey Davy Technologies Ltd. (London).

"Process for refining a crude ethylene glycol stream" was invented by John Swinney (Stockton-on-Tees, Great Britain), Paul Gordon (Stockton-on-Tees, Great Britain), David John Watson (Stockton-on-Tees, Great Britain) and Graham Reed (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for refining a crude ethylene glycol stream comprising monoethylene glycol and at least one acid contaminant is disclosed. The process comprises reacting the acid contaminant with the monoethylene glycol in at least one reaction zone to form an ester and removing the es...