Method of producing sulfur from sulfur dioxide

Details Method of producing sulfur from sulfur dioxide Method of producing sulfur from sulfur dioxide

1974-04-22

1977-06-14

Peters, G. O.

Chemistry of inorganic compounds

Sulfur or compound thereof

Binary compound

423237, 423242, 423244, 423564, 423567R, 423570, 423541A, C01B 1716

Patent

active

040297527

ABSTRACT:
A method for reducing sulfur dioxide wherein ammonia is used as the reducing agent. The reduction may be accomplished either thermally or catalytically and the principal products obtained will be elemental sulfur and/or hydrogen sulfide, depending principally upon the particular conditions and relative reactant concentrations actually employed. The sulfur dioxide may be derived from essentially any source. In a preferred embodiment, however, the sulfur dioxide will be derived from a flue gas stream and the same will be separated therefrom with an absorption process wherein ammonia (on an aqueous ammoniacal solution) is also used as the absorbent.

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Mellor -- Comprehensive Treatise on Inorganic and Theoretical Chemistry, 1930 -- vol. x -- pp. 218, 219.
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