Compositions: ceramic – Ceramic compositions – Refractory
Patent
1994-04-15
1995-06-06
Bell, Mark L.
Compositions: ceramic
Ceramic compositions
Refractory
501128, 266280, C04B 3510
Patent
active
054223237
ABSTRACT:
A granular castable refractory composition is provided which has excellent insulating properties as well as high strength and resistance to oxidation, corrosion or erosion. The refractory insulating composition can be easily transported using a pump, and avoids the potential hazards associated with asbestos and ceramic fibers. The refractory insulating composition is prepared by mixing a low density expanded granular refractory insulating material having a density of 7-50 lb/ft.sup.3 with a conventional high density refractory material having a density of at least 150 lb/ft.sup.3 to form a dry component, and by mixing the dry component with aqueous colloidal silica to provide excellent flow properties for pumping and, ultimately, excellent binding properties.
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Anderson Michael W.
Banerjee Subrata
Bell Mark L.
Magneco/Metrel, Inc.
Marcantoni Paul
Petersen Maxwell J.
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