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:
May. 02, 1978
Filed:
Dec. 20, 1976
Applicant:
Inventors:
George S Fujioka, Walnut Creek, CA (US);
Jim Love, Concord, CA (US);
Russel R Peterson, Concord, CA (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; C01B / ;
U.S. Cl.
CPC ...
252415 ; 423468 ;
Abstract
A method of regenerating the activated charcoal catalyst used in the production of sulfuryl fluoride by reaction of sulfur dioxide, chlorine and hydrogen fluoride, comprising treating the spent catalyst with an anhydrous stream of hydrogen fluoride at about 350.degree. to about 600.degree. C.