Compositions – Oxidative bleachant – oxidant containing – or generative – Free halogen or oxy-halogen acid type
Patent
1974-08-26
1976-06-08
Padgett, Benjamin R.
Compositions
Oxidative bleachant, oxidant containing, or generative
Free halogen or oxy-halogen acid type
55 73, 252 95, 423242, C01B 1756, B01D 5334
Patent
active
039621120
ABSTRACT:
A process and composition for removing sulfur dioxide from combustion gases particularly those emitted from the burning of high sulfur coal. The gases are treated with a liquid composition comprising 1 to 10 pounds of ClO.sub.2 per hundred pounds of SO.sub.2 to be treated and from 5 to 40 pounds of detergent per pound of ClO.sub.2. The composition is preferably alkaline, and may be injected as an atomized spray into the stack carrying gases, to preferably produce a stack gas of a pH between 7.0 and 7.5. The composition may also include 0.1 to 40 pounds of alkali per pound of ClO.sub.2 and 0.1 to 20 pounds of ammonia per pound of ClO.sub.2. Additionally, 1 to 30 pounds of an organic solvent per pound of ClO.sub.2 may be added.
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Keegan Francis A.
Leland David
Padgett Benjamin R.
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