Process for the recovery of sulfur

Details Process for the recovery of sulfur Process for the recovery of sulfur

1974-06-28

1976-11-02

Rutledge, L. Dewayne

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423356, 423541R, C01B 1700

Patent

active

039898091

ABSTRACT:
Elemental sulfur is recovered from ammonium salts of sulfuric oxyacids (e.g. ammonium sulfate, ammonium hydrogen sulfite, and ammonium sulfite) by passing the salt (e.g. in aqueous solution) and a hydrogenous reducing agent (e.g. sewer gas or coal gas) through a reaction chamber maintained at 800.degree. to 1300.degree. C. so as to yield a product gas containing molecular nitrogen, steam, and vaporous sulfur, and then cooling the product gas to 125.degree. to 325.degree. C. so as to condense at least a portion of the sulfur, which is then recovered.

REFERENCES:
patent: 3359069 (1967-12-01), Furkert
patent: 3795731 (1974-05-01), Furkert
patent: 3839549 (1974-10-01), Deschamps

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