Process for producing sulfur from sulfur dioxide or ammonium sul

Details Process for producing sulfur from sulfur dioxide or ammonium sul Process for producing sulfur from sulfur dioxide or ammonium sul

1975-10-06

1977-01-18

Thomas, Earl C.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423356, 423242, 423569, C01B 1700, C01C 102

Patent

active

040039862

ABSTRACT:
A method is disclosed for treating flue gas and the like for sulfur dioxide removal and sulfur recovery. The flue gas, containing a minor but polluting amount of sulfur dioxide, is contacted with ammonia in a reaction chamber. The reaction product is caused to precipitate onto a heat sink where it is mechanically removed on a continuous basis. The removed compounds are recycled by subjecting them either in solid or vaporized form to carbon monoxide between 140.degree. F and 600.degree. F to obtain sulfur and ammonia.

REFERENCES:
patent: 2090828 (1937-08-01), Beckman
patent: 3882222 (1975-05-01), Daschamps et al.
patent: 3883638 (1975-05-01), Renault et al.
patent: 3883643 (1975-05-01), Renault et al.

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