C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/343, 23/385
C01B 17/04 (2006.01) B01D 53/18 (2006.01)
Patent
CA 1046734
ABSTRACT OF THE DISCLOSURE Sulfur bearing gases are contacted with metal oxide bearing prepared solids containing iron, and reacted in an absorption procedure to produce both gases that are suitable for discharge to the atmosphere as "pollution free" effluents, and solids that contain either metal sulfates or metal sulfides that can be oxidize to metal sulfates The metal sulfate baring solids are contacted with reducing gases under controlled condition- in a decomposition procedure, the sulfates are converted to metal oxides that are suitable for use as sorbents, and the oxide bearing solids are recycled to the absorber The product gas from the decomposition procedure, which contains sulfur dioxide at high concentration, is utilized as feed gas for the production of sulfuric acid and/or elemental sulfur by conventional processes.
210619
Dor Abraham A.
Mcgauley Patrick J.
Mcgauley Patrick J.
The Hanna Mining Company
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