US PATENT SUBCLASS 502 / 11
INCLUDING ION EXCHANGING, EXCEPT ZEOLITES OR PRODUCT THEREOF

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

11INCLUDING ION EXCHANGING, EXCEPT ZEOLITES OR PRODUCT THEREOF {1}
12  DF  .~> For regenerating or rehabilitating catalyst or sorbent

DEFINITION

Classification: 502/11

INCLUDING ION EXCHANGING, EXCEPT ZEOLITES OR PRODUCT THEREOF:

(under the class definition) Process in which a dissociably charged chemical moiety is released by the composition and a different charged moiety of the same polarity is captured, effecting a reversible chemical replacement reaction.

(1) Note. While an ion exchange process for a zeolite for this class is not classifiable here, such a process involving a clay is classifiable here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

60+, for a process of making a catalytic or sorbent zeolite composition which may include an ion exchange step.

SEE OR SEARCH CLASS

252, Compositions,

179, and 184 for an ion exchanging composition.

521, Synthetic Resins or Natural Rubbers, 25, for an ion exchange synthetic resin.