Sulfur separation process

Details Sulfur separation process Sulfur separation process

1982-12-20

1985-05-21

Thomas, Earl C.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423226, C01B 1705, B01D 5334

Patent

active

045185778

ABSTRACT:
A cyclic process for the removal of H.sub.2 S from a sour gaseous stream is disclosed, the process being characterized by the reaction of the H.sub.2 S to sulfur employing aqueous solutions of oxidizing polyvalent metal chelates of specified organic acids, and by the recovery of the sulfur from the solutions with specific extractants. The extractants are selected from compounds (and mixtures thereof) having the formula C.sub.n H.sub.2(n+1), wherein n is a whole number from 4 through 8, and the recovery may be made prior or subsequent to regeneration of the polyvalent metal chelate solution.

REFERENCES:
patent: 3068065 (1962-12-01), Hartley et al.
patent: 3580950 (1971-05-01), Bersworth
patent: 3933993 (1976-01-01), Salemme
patent: 4009251 (1977-02-01), Meuly
patent: 4243648 (1981-01-01), Fenton et al.
patent: 4390516 (1983-06-01), Blytas
patent: 4402930 (1983-09-01), Diaz
patent: 4414194 (1983-11-01), Blytas

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