US PATENT SUBCLASS 423 / 537
.~.~.~.~.~ With sulfate or asbestos carrier

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

511  DF  SULFUR OR COMPOUND THEREOF {4}
512.1  DF  .~ Oxygen containing {11}
532  DF  .~.~ Sulfur trioxide {1}
533  DF  .~.~.~ Utilizing catalyst in reaction {4}
536  DF  .~.~.~.~ Platinum catalyst {1}
537.~.~.~.~.~ With sulfate or asbestos carrier

DEFINITION

Classification: 423/537

(under subclass 536) Processes wherein the platinum catalyst is spread on or is supported by a sulfate (SO4[supscrpt]2-[end supscrpt]) or asbestos substance.

(1) Note. The carrier is usually for the purpose of extending the surface of the catalyst.

SEE OR SEARCH CLASS

502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making,

100+, for specific catalysts.