C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/03 (2006.01) C04B 35/66 (2006.01)
Patent
CA 2663798
A method for improving the insulating character/and or penetration resistance of a liner in contact with at least one of an alkali and/or alkaline environments is provided. The method comprises lining a surface that is subject to wear by an alkali environment and/or an alkaline environment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium hexa aluminate clinker having the formula CA6, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, and wherein the hexa aluminate clinker has from zero to less than about fifty weight percent C12A7, and wherein greater than 98 weight percent of the calcium hexa aluminate clinker having a particle size ranging from -20 microns to +3 millimeters, for forming a liner of the surface. This method improves the insulating character/and or penetration resistance of the liner.
L'invention porte sur un procédé améliorant les caractéristiques d'isolation et la résistance à la pénétration d'un doublage en contact avec de l'alcali et/ou un milieu alcalin. Le procédé d'élaboration du doublage consiste à revêtir une surface soumise à l'agression de l'alcali et/ou du milieu alcalin d'une composition réfractaire consistant essentiellement en un agrégat réfractaire de clinker d'hexa aluminate de calcium de formule CA6, dans laquelle: C = oxyde de calcium; A = oxyde d'aluminium. Ledit clinker comporte de 0 à moins d'environ 50% de C12A7, et plus de 98% de son poids est fait de particules d'une taille allant de 20 microns à +3 millimètres. Ce procédé améliore les caractéristiques d'isolation et la résistance à la pénétration du doublage.
Cullen Robert M.
Hemrick James G.
Keiser James R.
Mcgowan Kenneth A.
Meisner Roberta A.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Cullen Robert M.
Mcgowan Kenneth A.
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