ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,662, issued on June 3, was assigned to Stamicarbon B.V. (Sittard, Netherlands).
"Coupled urea melamine plant" was invented by Rahul Patil (Maastricht, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure pertains to a plant and process for the coupled production of urea and melamine. In an embodiment, a lean carbamate solution is supplied from the melamine production section to a recovery section of the urea production section. In an embodiment, enriched carbamate solution from the urea production section is supplied to an off-gas condenser of the melamine production section."
The patent was filed on Nov. 22, 2023, under Applica...