Selective oxidation of hydrogen sulfide in the presence of mixed

Details Selective oxidation of hydrogen sulfide in the presence of mixed Selective oxidation of hydrogen sulfide in the presence of mixed

1997-09-24

1999-09-07

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423230, 423231, 4235768, 42324404, B01D 5352, B01D 5386

Patent

active

059483822

ABSTRACT:
The present invention discloses a method of selectively oxidizing hydrogen sulfide to elemental sulfur, in which a H.sub.2 S-containing gas mixture contacts with an oxygen-containing gas at about 50-400.degree. C. in the presence of an mixed-oxide catalyst. The reaction product mixture contains substantially no sulfur dioxide. The mixed-oxide catalyst, in addition to iron (III) and molybdate (VI) components, further contains a antimony component as a promoter.

REFERENCES:
patent: 4814159 (1989-03-01), Voirin
patent: 5700440 (1997-12-01), Li et al.
patent: 5728358 (1998-03-01), Avidan et al.

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