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:
Jun. 01, 1993
Filed:
Dec. 20, 1990
Applicant:
Inventor:
Derek McManus, Roselle, IL (US);
Assignee:
ARI Technologies Inc., Palatine, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423220 ; 4232421 ; 423236 ; 423563 ; 4235 / ; 422170 ;
Abstract
A method and apparatus for the hydrothermal treatment of a catalytic polyvalent metal redox absorption solution, after absorption of the H.sub.2 S from an H.sub.2 S containing gas stream, to avoid substantial buildup of thiosulfate salts, cyanide salts, and cyanide complexes in the catalytic polyvalent metal redox solution. The method and apparatus of the present invention is particularly useful for treating gas streams containing both H.sub.2 S and HCN concurrently for destruction of the cyanide salts and cyanide complexes and conversion of H.sub.2 S and by-product salts to elemental sulfur.