Silicates with high ion exchange capacity derived from sepiolite

Details Silicates with high ion exchange capacity derived from sepiolite Silicates with high ion exchange capacity derived from sepiolite

1983-02-28

1985-09-17

Straub, Gary P.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423326, 423327, 423332, 502 11, C01B 3324

Patent

active

045420025

ABSTRACT:
Silicate having high ion exchange capacity are obtained by reacting sepiolites with a base, preferably a strong base in the presence of a polar liquid at a temperature, preferably elevated, and for a period sufficient to increase the ion exchange capacity to at least 50 meq. per 100 g, more preferably at least 100 meq. per 100 g. In the preferred form, the reaction is carried out at above 100.degree. C. in an autoclave.

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Anton Preisinger, Sepiolite and Related Compounds: Its Stability and Application, Mineralogishes Institut, Universitat Wien, Vienna, Austria, pp. 365-371.
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