US PATENT SUBCLASS 210 / 671
.~.~.~ Of oil sorbent material

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

600  DF  PROCESSES {14}
660  DF  .~ Ion exchange or selective sorption {8}
670  DF  .~.~ Including rehabilitating or regenerating exchange material or sorbent {7}
671.~.~.~ Of oil sorbent material

DEFINITION

Classification: 210/671

Of oil sorbent material:

(under subclass 670) Process wherein the separatory material is a sorbent having oil deposited thereon or therein as a result of contact between the sorbent and the liquid undergoing treatment.

SEE OR SEARCH THIS CLASS, SUBCLASS:

680, for removal of oil from a liquid with a sorbent material which is associated with an inert material.

693, for removal of oil from an aqueous stream using a synthetic resin.