US PATENT SUBCLASS 549 / 535
.~.~.~.~.~.~.~.~ Fluidized catalyst


Current as of: June, 1999
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549 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
*  DD  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1) {2}
200  DF  .~.~ Oxygen containing hetero ring (e.g., dioxirane, etc.) {16}
512  DF  .~.~.~ The hetero ring is three-membered consisting of one oxygen and two carbons {7}
513  DF  .~.~.~.~ Processes {5}
518  DF  .~.~.~.~.~ Oxirane ring formed {3}
523  DF  .~.~.~.~.~.~ Epoxidation at site of ethylenic unsaturation {2}
534  DF  .~.~.~.~.~.~.~ Silver containing catalyst utilized {4}
535.~.~.~.~.~.~.~.~ Fluidized catalyst


DEFINITION

Classification: 549/535

(under subclass 534) Processes wherein the catalyst particles are fluidized by passing gaseous reactants upward through them.