Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1976-10-21
1978-07-11
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
423522, C01B 1700, C01B 1772
Patent
active
041002598
ABSTRACT:
A process for purifying combustion gases by removing the sulfur dioxide which they contain and for producing sulfuric acid, consisting in rinsing said gases by means of an aqueous solution capable of oxidizing said sulfur dioxide, said rinsing operation being effected in the presence of oxygen, characterized in that said aqueous rinsing solution comprises at least one element capable of combining with said sulfur dioxide to form within the aqueous solution and in the presence of sulfuric acid a sulfur type intermediate coordination complex capable of cooperating with oxygen and said element to produce at least one oxidizing compound (product) capable of oxidizing said sulfur dioxide at a rapid rate.
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Tarbutton et al., Recovery of Sulfur Dioxide from Flue Gases, I&EC vol. 49, pp. 392-395, Mar. 1957.
Copson et al., Recovery of Sulfur Dioxide as Dilute Sulfuric Acid, I&EC vol. 25, #8, Aug. 1933, pp. 909-916.
Salaun Andre
Trempu Rene
Compagnie Industrielle des Telecommunications Cit-Alcatel
Straub Gary P.
Thomas Earl C.
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