US PATENT SUBCLASS 502 / 75
.~ Including chemical reduction of exchanged cation
Current as of:
June, 1999
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502 /
HD
CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING
60
DF
ZEOLITE OR CLAY, INCLUDING GALLIUM ANALOGS
{13}
75
.~ Including chemical reduction of exchanged cation
DEFINITION
Classification: 502/75
Including chemical reduction of exchanged cation:
(under subclass 60) Process in which a positive ion which has replaced an original ion gains electrons or product of such process.
(1) Note. The bulk of art in this subclass is concerned with exchanging alkali metal ions in zeolite and reducing the new ion to the free metal.