DIFF Subgroup
B01J 39/14 Base exchange silicates, e.g. zeolites
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties > Use of material as cation exchangers; Treatment of material for improving the cation exchange properties > Base exchange silicates, e.g. zeolites
CPC:
Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties (ion-exchange chromatography processes B01D15/36) > Use of material as cation exchangers; Treatment of material for improving the cation exchange properties > Base exchange silicates, e.g. zeolites
No child classifications to compare. This is a leaf node in both IPC and CPC.