US PATENT SUBCLASS 585 / 719
.~.~ With plural separation procedures applied to effluent or effluent component

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

700  DF  SATURATED COMPOUND SYNTHESIS {11}
709  DF  .~ By condensation of a paraffin molecule with an olefin-acting molecule, e.g., alkylation, etc. {11}
719.~.~ With plural separation procedures applied to effluent or effluent component

DEFINITION

Classification: 585/719

With plural separation procedures applied to effluent or effluent component:

(under subclass 709) Subject matter wherein the effluent from the alkylation reaction or a component thereof passes through at least two separation steps.

(1) Note. A mere nominal "recovery" or "separating" step is not sufficient to warrant placement of a patent herein.

(2) Note. Many patents contained herein seek to recover a separate hydrocarbon in addition to the alkylate product.

SEE OR SEARCH THIS CLASS, SUBCLASS:

331, for a process where an alkylation reaction is followed by a diverse conversion to produce a paraffin.

702+, 705 and 706, for paraffin syntheses in general which may or do involve specifically directed separation or purification procedures.

710, and 712, for alkylation procedures involving specifically directed purification or separation procedures.

716, for a process wherein the alkylation effluent is subjected to another alkylation reaction.