METHOD OF PRODUCING FINE MAGNESIUM ALUMINATE Russian patent published in 2012 - IPC C01F7/16 

Abstract RU 2457181 C1

FIELD: chemistry.

SUBSTANCE: invention relates to chemistry. Aluminium hydroxide and magnesium hydroxide are mixed in weight ratio 2.69:1 and mechanically activated in high-stress planetary-centrifugal mills for 5-15 minutes with ratio of the mass of the suspension to mass of the ball load equal to 1:10-1:30 and acceleration during activation of 20-40 g. Activation products are treated with water at temperature 20-95°C and time 0.25-2 hours, filtered, dried and thermally treated at temperature not lower than 800°C for 2-4 hours.

EFFECT: invention enables to obtain powdered magnesium aluminate with specific surface area from 80 to 260 m2/g.

3 cl, 1 tbl

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RU 2 457 181 C1

Authors

Isupov Vitalij Petrovich

Khusnutdinov Vjacheslav Ramil'Evich

Avvakumov Evgenij Grigor'Evich

Vinokurova Ol'Ga Borisovna

Dates

2012-07-27Published

2011-04-27Filed