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:
Apr. 03, 1979
Filed:
Apr. 21, 1977
Applicant:
Inventors:
Madanamohana R Gogineni, Enfield, CT (US);
Philip C Rader, Windsor Locks, CT (US);
Wilfred R Roczniak, Enfield, CT (US);
Assignee:
Combustion Engineering, Inc., Windsor, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423242 ;
Abstract
Gases containing SO.sub.2 from a furnace are contacted in the scrubbing zone of a scrubber with an aqueous scrubbing medium containing Ca(OH).sub.2 whereby sulfites are formed. The Ca(OH).sub.2 additive is at least partially the Ca(OH).sub.2 sludge produced in the manufacture of acetylene from CaC.sub.2. This sludge contains constituents which retard or inhibit the oxidation of sulfite to sulfate to thereby reduce the possibility of sulfate scaling in the system.