Crystalline sodium potassium silicates

Details Crystalline sodium potassium silicates Crystalline sodium potassium silicates

C - Chemistry, Metallurgy

01

B

C01B 33/32 (2006.01) C01B 33/38 (2006.01) C11D 3/08 (2006.01) C11D 3/12 (2006.01) C11D 7/14 (2006.01)

Patent

CA 2171098

The present invention pertains to a crystalline silicate material containing both sodium and potassium cations within the crystalline matrix. The composition of the material is SiO2 / (xNa2O + yK2O) = Z where x + y = 1, 0.75 < x < 1.0 (and therefore 0.0 < y < 0.25), and 1.3 <= Z <= 3.22. The material possesses predetermined superior hardness ion sequestration properties determined by the composition and processing of the material. The material can be made by any one of several processes which are also set forth.

L'invention porte sur un produit à base de silicates cristallins dont la matrice cristalline comporte des cations sodium et potassium et de formule SiO¿2? / (xNa¿2?O + yK¿2?O) = Z dans laquelle x + y = 1, 0,75 < x < 1,0 (donc 0,0 < y < 0,25), et 1,3 <= Z <= 3,22. Ledit produit présente des propriétés prédéterminées élevées de dureté résultant de sa composition et de son traitement. Il peut être obtenu au moyen des différents procédés indiqués.

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