Mayenite-type compound and process for production of same

Details Mayenite-type compound and process for production of same Mayenite-type compound and process for production of same

C - Chemistry, Metallurgy

01

F

C01F 7/02 (2006.01) C01F 7/16 (2006.01)

Patent

CA 2735211

The present invention relates to a mayenite-type compound in which a part of Ca of a mayenite-type compound containing Ca, Al and oxygen is substituted by at least one kind of an atom M selected from the group consisting of Be, Mg and Sr, in which the mayenite-type compound has an atom number ratio represented by M/(Ca+M) of from 0.01 to 0.50, and at least a part of free oxygen ions in a mayenite-type crystal structure are substituted by anions of an atom having electron affinity smaller than that of an oxygen atom.

La présente invention concerne un composé de type mayenite contenant Ca, Al et de loxygène, caractérisé en ce quune partie des atomes Ca sont remplacés par au moins un type datomes (M) choisis dans le groupe constitué de Be, Mg et Sr. Le rapport atomique M/(Ca+M) est de 0,01 à 0,50, et au moins une partie des ions doxyde libre contenus dans la structure cristalline de type mayenite sont remplacés par des anions dun élément ayant une affinité électronique plus faible que celle de loxygène.

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