Type A

Introduced: January 1995

Last revised: January 2006

Full Title

Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination > Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof > Type A

Classification Context

Section:: CHEMISTRY; METALLURGY
Class:: INORGANIC CHEMISTRY
Subclass:: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF

2 direct subcodes

Child Classifications

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C01B 39/16 from aqueous solutions of an alkali metal aluminate and an alkali metal silicate excluding any other source of alumina or silica but seeds
C01B 39/18 from a reaction mixture containing at least one aluminium silicate or aluminosilicate of a clay type, e.g. kaolin or metakaolin or its exotherm modification or allophane