The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2020
Filed:
Apr. 11, 2017
Arkema France, Colombes, FR;
Marianne Launay, Serezin du Rhone, FR;
Irene Emery, Francheville, FR;
David Jean-Leopold Bidet, Oullins, FR;
Arkema France, Colombes, FR;
Abstract
Disclosed is a process for treating a gas stream containing hydrochloric acid, hydrofluoric acid, a fluorinated compound and halogenated organic compounds, wherein the gas stream is subjected to: (a) a step of washing with an acid solution to obtain a washed gas stream; (b) a step of adiabatic absorption in an aqueous solution of the hydrochloric acid contained in said washed gas stream, to collect a solution of hydrochloric acid; (c) a step of adsorption on activated carbon of the impurities present in said hydrochloric acid solution, to obtain a purified hydrochloric acid solution and a gas stream containing said fluorinated compound; and (d) a step of bringing said purified hydrochloric acid solution into contact with a silica gel. Also disclosed is a plant for the implementation of this process, and also a process for preparing a fluorinated compound comprising the catalytic pyrolysis of an organofluorine compound.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile