MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202617084358 A) filed by Arkema Inc. on July 09, 2026, for Methods Of Making Fluoromethane From Chloromethane And Fluoromethane Compositions.
Inventors include Demott, Jessica C.; Alford, Jr. , Daniel; Rodowski, Charles D.; Chen, Benjamin Bin; Clarkson, Lucy; and Brandstadter, Stephan M..
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: A method for synthesizing fluoromethane from chloromethane and at least a 150% stoichiometric excess of hydrogen fluoride is provided, as is a fluoromethane product composition. The method includes contacting the reactants in gas phase in a reactor in the substantial absence of chromium but optionally in the presence of solid support particles; controlling conditions in the reactor to foster 3-30% reaction conversion of the reactants to form a reactor output stream; separating unreacted chloromethane and hydrogen fluoride out from the reactor output stream to form a recycle stream, with at least a portion of the remaining components of the reactor output stream forming a crude intermediate stream comprising fluoromethane product and hydrogen chloride by-product; recycling at least a portion of the recycle stream back to the reactor; removing by-product hydrogen chloride from the crude intermediate stream to form a fluoromethane product stream; and optionally purifying the fluoromethane product stream.
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