C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/2
C04B 38/00 (2006.01)
Patent
CA 1241350
ABSTRACT The invention provides a process for producing a lightweight ceramic material for use in building purposes, particularly as a thermal and/or noise insulating material or as an aggregate for high temperature building materials, furnace building materials and/or refractory building materials, having a bulk density of 300 to 700 g/liter, which comprises forming a starting mixture containing 45 to 80 parts by weight of clay, 0 to 50 parts by weight of an aggregate, 15 to 30 parts by weight of water, 0,01 to 0,03 parts by weight of a deflocculant and 0,001 to 0,01 parts by weight of a surfactant; foaming the starting mixture at a pressure of 1 to 10 bar by compressed air at a temperature between ambient temperature and 95°C to form a foam; molding and drying the foam to give a dried clay blank; and firing the dried clay blank at a product temperature between 600 and 1400°C.
477488
Lang Rudiger
Meyer Bernd
Gowling Lafleur Henderson Llp
Masterfoods Gmbh
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