US PATENT SUBCLASS 127 / 55
.~.~.~.~.~ Filtering or sorption

Current as of: June, 1999
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127 /   HD   SUGAR, STARCH, AND CARBOHYDRATES

*  DD  PROCESSES {1}
34  DF  .~ Carbohydrate manufacture and refining {3}
42  DF  .~.~ Sugar manufacture and refining {3}
46.1  DF  .~.~.~ Treatment of sacchariferous solutions {5}
53  DF  .~.~.~.~ Physical separation of impurities {4}
55.~.~.~.~.~ Filtering or sorption

DEFINITION

Classification: 127/55

Filtering or sorption:

(under subclass 53) Processes for separating impurities from solutions by filtration or selective sorption, or both, which are peculiar to sugar.

SEE OR SEARCH CLASS

204, Chemistry: Electrical and Wave Energy,

518+, for electrophoretic or electro-osmotic barrier separation (e.g., electrodialysis of sugars, starches, or carbohydrates, etc.).

205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions, appropriate subclasses for electrolytic treatment involving the use of a membrane, especially

697, for electrolytic treatment of sugar.

210, Liquid Purification or Separation, 660+, for a process of purification by ion exchange or sorption, subclasses 702+ for a purification process including precipitation, and subclasses 767+ for a purification process including separating, especially subclasses 781+ and 787+ for centrifugal extraction.

502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making, for a composition comprising a catalyst or sorbent, per se.