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. 30, 1976
Filed:
May. 25, 1973
Applicant:
Inventors:
Jean Louise, Villejuif, FR;
Guy Senechal, Saint Cloud, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423242 ; 423522 ;
Abstract
There is described a process for the purification of gaseous effluents containing oxides of sulphur before discharge of the gaseous effluent into the atmosphere. The process is carried out in at least two separate stages of oxidation using ozonised oxygen in the presence of a catalytic quantity of an ion of a transition metal and in a manner such that the ozonised oxygen does not contact the gaseous effluent. The ozone is generally employed in the proportion of one mole of ozone to 15 to 20 moles of impurity to be oxidised.