US PATENT SUBCLASS 423 / 454
.~.~.~.~.~ Hot particulate bed or reaction zone lining or refactory

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

414  DF  CARBON OR COMPOUND THEREOF {3}
445 R  DF  .~ Elemental carbon {7}
449.1  DF  .~.~ Carbon black (e.g., lampblack) {6}
450  DF  .~.~.~ Directly from fluid hydrocarbon only {6}
453  DF  .~.~.~.~ By contacting with catalyst or hot solid surface {1}
454.~.~.~.~.~ Hot particulate bed or reaction zone lining or refactory

DEFINITION

Classification: 423/454

(under subclass 453) Processes in which the contact is with a heated solid surface comprising particulate solids or the inner surface or firebrick of the zone in which the decomposition takes place.

SEE OR SEARCH THIS CLASS, SUBCLASS:

453, for a process of making carbon by contact of a fluid hydrocarbon with a liquid catalyst or a bed of unheated particulate solids.