US PATENT SUBCLASS 210 / 691
.~.~.~ From aqueous 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}
690  DF  .~.~ Sorbing organic constituent {1}
691.~.~.~ From aqueous material {2}
692  DF  .~.~.~.~> Utilizing synthetic resin {1}
694  DF  .~.~.~.~> Utilizing activated carbon

DEFINITION

Classification: 210/691

From aqueous material:

(under subclass 690) Process in which the liquid from which the organic constituent is sorbed comprises water.

(1) Note. The liquid may be considered as a functional or known liquid other than water but contains a substantial amount of water (e.g., blood, sap, concentrated aqueous solution, etc.).

SEE OR SEARCH CLASS

127, Sugar, Starch, and Carbohydrates,

49, and 55 for adsorption processes applied to sugar solutions.