C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 28/00 (2006.01) B09B 3/00 (2006.01) C04B 14/40 (2006.01) C04B 28/14 (2006.01) C04B 28/16 (2006.01) C04B 41/45 (2006.01) C04B 41/50 (2006.01) C09K 3/00 (2006.01) A62D 3/00 (2006.01)
Patent
CA 2266910
A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30 % by weight of an inorganic acid, and from about 0.1 to about 4 % by weight of a hexafluorosilicate of ammonia, an alkali metal or an alkaline earth metal. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition also is disclosed.
L'invention porte sur une composition permettant de transformer un matériau contenant de l'amiante chrysotile en un matériau exempt d'amiante. Ladite composition comprend de l'eau, au moins environ 30 % en poids d'un acide non organique et d'environ 0,1 à 4 % en poids d'hexafluorosilicate d'ammonium, d'un métal alcalin ou d'un métal alcalino-terreux. L'invention porte également sur un procédé de transformation d'un matériau contenant de l'amiante chrysotile en un matériau exempt d'amiante à l'aide de ladite composition.
Gowling Lafleur Henderson Llp
W.r. Grace & Co.,-Conn.
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