ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,702,948, issued on Aug. 11, was assigned to MEXICHEM FLUOR S.A. DE C.V. (San Luis Potosi, Mexico).
"Method for the separation of phosphorus pentafluoride from hydrogen chloride" was invented by Robert E. Low (Runcorn, Great Britain) and Andrew P. Sharratt (Runcorn, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process of separating a feed stream comprising HCl and PF5 into a plurality of streams, wherein a first stream is enriched in PF5 and a second stream is enriched in HCl, the process comprising the feed stream entering one or more permeable membrane separation modules, wherein the membrane separatio...