Synthetic meixnerite product and method

Details Synthetic meixnerite product and method Synthetic meixnerite product and method

C - Chemistry, Metallurgy

01

F

C01F 7/00 (2006.01) B01J 23/00 (2006.01) C01B 13/36 (2006.01) C01B 19/00 (2006.01) C01B 33/38 (2006.01) C01G 3/00 (2006.01) C01G 9/00 (2006.01) C01G 31/00 (2006.01) C01G 39/00 (2006.01) C01G 41/00 (2006.01) C01G 45/00 (2006.01) C01G 49/00 (2006.01) C01G 53/00 (2006.01) C07C 51/41 (2006.01)

Patent

CA 2189020

There is disclosed an improved synthetic meixnerite having reduced carbonate contamination levels and an x-ray diffraction pattern resembling that shown in the figure, the meixnerite is made by combining magnesium oxide and transition alumina, preferably an activated alumina powder having a BET surface area of about 100 m2/g or greater, in a substantially carbonate-free environment. A method for making this synthetic meixnerite product is also disclosed.

L'invention se rapporte à un hydrate hydroxyde de magnésium-aluminium (méixnérite) synthétique présentant des niveaux de contamination par carbonate réduits ainsi qu'un diagramme de diffraction des rayons X du type représenté par la figure. On fabrique ce méixnérite en combinant l'oxyde de magnésium et une alumine de transition, de préférence une poudre d'alumine activée présentant une surface BET d'au moins 100 m?2¿/g environ, dans un environnement pratiquement dépourvu de carbonate. Un procédé de fabrication de ce produit à base de méixnérite synthétique est également décrit.

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