Process for producing aluminous keatite ceramics

Details Process for producing aluminous keatite ceramics Process for producing aluminous keatite ceramics

1976-09-20

1977-07-05

Douglas, Winston A.

Compositions: coating or plastic

Coating or plastic compositions

Marking

65 30E, C03C 322, C03C 2100, C03C 304

Patent

active

040337758

ABSTRACT:
In a process for producing aluminous keatite ceramics by the hydrogen-for-lithium ion-exchange treatment of non-porous glass-ceramics, the efficiency of the lithium extraction step is substantially improved if beta-spodumene glass-ceramics having an Al.sub.2 O.sub.3 :modifying oxide ratio not exceeding about 1:1 are selected as starting materials.

REFERENCES:
patent: 3834981 (1974-09-01), Grossman et al.
patent: 3985533 (1976-10-01), Grossman

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