Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1984-08-28
1985-11-19
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
423166, C01B 1700
Patent
active
045541400
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.
REFERENCES:
patent: 3928537 (1975-12-01), Saitoh et al.
patent: 4092402 (1978-05-01), Kobayashi et al.
patent: 4155988 (1979-05-01), Karwat et al.
Heller Gregory A.
Kureha Chemical Industry Co. Ltd.
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