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:
Nov. 19, 1985
Filed:
Aug. 28, 1984
Applicant:
Inventor:
Yoshihiko Kudo, Iwaki, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423243 ; 423166 ;
Abstract
In the conversion of sulfur dioxide in an off-gas to gypsum for removal by oxidizing with an oxygen-containing gas while neutralizing with limestone an absorbed solution formed by contacting an off-gas containing sulfur dioxide with an absorbing solution containing an organic carboxylate, the addition of a thiocyanate to the absorbing solution makes it possible to inhibit the decomposition of the organic carboxylic acid in the absorbing solution.