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1. (WO2018067511) PROCESS TO RECOVER HYDROGEN FLUORIDE FROM HYDROGEN FLUORIDE-POLYMER COMPOSITIONS

Pub. No.:    WO/2018/067511    International Application No.:    PCT/US2017/054864
Publication Date: Fri Apr 13 01:59:59 CEST 2018 International Filing Date: Wed Oct 04 01:59:59 CEST 2017
IPC: C01B 7/19
Applicants: HONEYWELL INTERNATIONAL INC.
Inventors: LULY, Matthew H.
POINTNER, Bernard E.
Title: PROCESS TO RECOVER HYDROGEN FLUORIDE FROM HYDROGEN FLUORIDE-POLYMER COMPOSITIONS
Abstract:
A method of preparing aqueous hydrogen fluoride is provided. The method includes providing a composition including a cross-linked polymer with absorbed hydrogen fluoride. The cross-linked copolymer includes acrylamide units and acrylic acid salt units. The method further includes contacting the composition with water to release at least a portion of the hydrogen fluoride from the composition to the water to form the aqueous hydrogen fluoride.