US PATENT SUBCLASS 585 / 311
.~ One synthesis rehabilitates catalyst for other, e.g., by alkylation with ester, etc.


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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

310  DF  PLURAL SERIAL DIVERSE SYNTHESES {8}
311.~ One synthesis rehabilitates catalyst for other, e.g., by alkylation with ester, etc.


DEFINITION

Classification: 585/311

One synthesis rehabilitates catalyst for other, e.g., by alkylation with ester, etc.:

(under subclass 310) Subject matter in which a catalyst which has deteriorated in its effectiveness in a synthesis process is treated to restore its effectiveness by using it in another hydrocarbon synthesis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

301, and 702+, for a process in which a catalyst is used in plural distinct treatments, its use in one treatment sometimes serving, incidentally, to improve its effectiveness in the other treatment.

328, for a process in which a nonhydrocarbon material, e.g., aluminum trialkyl, reacts in a "growth" reaction with an olefin to form a higher alkyl nonhydrocarbon, and the alkyl is replaced by a lower carbon-content hydrocarbon leaving the original nonhydrocarbon reactant.