US PATENT SUBCLASS 423 / 576
.~.~.~.~.~ Utilizing promotor containing silica or aluminum

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}
574.1  DF  .~.~.~.~ With sulfur dioxide {3}
576.~.~.~.~.~ Utilizing promotor containing silica or aluminum

DEFINITION

Classification: 423/576

(under subclass 574.1) Processes which are carried out in the presence of a catalyst, its carrier or a promoter thereof, which contains aluminum or silica.