Process for the catalytic oxidation of hydrogen sulfide with sulfur dioxide

Patent · Tue Dec 13 00:00:00 EST 1977

OSTI ID:6662248

Whelan, J M

A process for the oxidation of hydrogen sulfide with sulfur dioxide to produce sulfur is described which comprises combining the hydrogen sulfide with a one-half molar equivalent of sulfur dioxide and passing the hydrogen sulfide-sulfur dioxide mixture over a ceramic catalyst of the following formula at a temperature between about 100/sup 0/ and about 800/sup 0/C: W/sub k/X/sub n/J/sub (l-k-n)/ZO (3 +- m) where W is zirconium, tin or thorium, or a mixture thereof; X is an alkaline earth metal or mixture thereof; J is scandium, yttrium, a rare-earth element or mixture thereof; Z is a metal of the first transition series or a mixture thereof, at least 0.01% of said metal having an oxidation state other than +3; k is a number having a value of between 0 and about 0.01; m is a number having a value of from 0 to about 0.26; and n is a number having a value from 0 to about 0.51, provided when n has a value of 0, k has a value between 0 and about 0.05.

• Assignee: Univ. of Southern California
• Patent Number(s): US 4062932
• OSTI ID: 6662248
• Resource Relation: Patent File Date: Filed date 5 Aug 1976
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
HYDROGEN SULFIDES
OXIDATION
SULFUR DIOXIDE
REDUCTION
AIR POLLUTION CONTROL
ALKALINE EARTH METAL COMPOUNDS
CATALYSTS
DESULFURIZATION
RARE EARTH COMPOUNDS
SCANDIUM OXIDES
THORIUM OXIDES
TIN OXIDES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM OXIDES
ACTINIDE COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
HYDROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SCANDIUM COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SULFUR OXIDES
THORIUM COMPOUNDS
TIN COMPOUNDS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
400201* - Chemical & Physicochemical Properties
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)