US PATENT SUBCLASS 423 / 576.8
.~.~.~.~ By reacting gaseous feed with gas containing free oxygen

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

511  DF  SULFUR OR COMPOUND THEREOF {4}
567.1  DF  .~ Elemental sulfur {5}
571  DF  .~.~ Reacting a sulfide {3}
573.1  DF  .~.~.~ Hydrogen sulfide {4}
576.8.~.~.~.~ By reacting gaseous feed with gas containing free oxygen

DEFINITION

Classification: 423/576.8

By reacting gaseous feed with gas containing free oxygen:

(under subclass 573.1) Subject matter in which a hydrogen sulfide-containing feed gas is directly contacted and mixed with a gas containing oxygen in uncombined form, elemental sulfur being thereby formed, including a process wherein such gases simultaneously contact a solid catalyst.