Method of manufacturing refractory articles

Details Method of manufacturing refractory articles Method of manufacturing refractory articles

1975-03-24

1977-04-19

White, Robert F.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 58, 264 63, 264 86, C04B 3504, C04B 3548

Patent

active

040188582

ABSTRACT:
The invention concerns the binding of refractory powders into self-supporting "green" shapes which are fired to provide refractory objects. In accordance with the invention the binders are based on zirconium salts and include a dispersion of calcined magnesia in a mixture of water and a polyhydric alcohol. The magnesia reacts with the zirconium salt to form zirconium oxide/hydroxide which gells hard. In order to control the speed of gelling a separate gell time delaying agent is also optionally included.

REFERENCES:
patent: 3232771 (1966-02-01), Pearce
patent: 3607319 (1971-09-01), Scott

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