C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 3/064 (2006.01) C03B 25/00 (2006.01) C03C 12/00 (2006.01) C04B 35/01 (2006.01)
Patent
CA 2664990
A glass-ceramic is comprised of, between 14 and 40% by weight SiO2, between 30 and 47% by weight MnO2, between 10 and 40% by weight B2O3, between 1 and 22% by weight Al2O3, between 1 and 5% by weight Fe2O3, between 2 and 26% by weight Na2O, between 0.1 and 2.5% by weight K2O, between 0.3 and 0.5% by weight TiO2, and between 1 and 7% by weight others. The main sources of raw materials are manganese crust, nodules and stratified manganese ore tailings and silica sand, while borax, boric acid, lithium tetraborate and borosilicate waste glass are useful fluxes. The glasses are suitable for glass fiber, glass wool, various porous glass applications and precursors for preparing glass-ceramics. Glass-ceramic materials are suitable as wall and floor tiles, general construction materials, ornaments and various porous glass-ceramic applications. The glass-ceramic has been trade marked as Manceram.
Lay Terry G. F.
Na
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