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. 22, 1977
Filed:
Jan. 02, 1974
Egon Haese, Bochum, DT;
Dr. C. Otto & Comp. G.m.b.H., Bochum, DT;
Abstract
In the process disclosed, gas from a coke plant is washed with an aqueous metallic salt solution including sulfureous and sulfuric acid to absorb the ammonia, hydrogen sulfide and hydrogen cyanide from the gas. The washing solution is then oxidized in an aerating tank to recover elementary sulfur. A portion of the washing fluid from the oxidizer is returned for continued washing of gas and a portion of the fluid is heated in the presence of a catalyst to yield products of combustion including an acid anhydride and a metal or metal oxide. After processing the combustion products through a heat recovering system, the acid anhydride and metal oxides are combined and react to form renewed aqueous metal salt solution that is combined with the oxidized washing solution to wash additional quantities of gas.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile