FIELD: chemistry.
SUBSTANCE: invention can be used in inorganic chemistry. Method of obtaining aluminium monohydroxide powder of pseudoboehmite structure includes thermochemical gibbsite activation. Activation products are washed on drum filter with ammonium nitrate solution with concentration 0.5-5 g/l at pH lower than 7-8. After that, washed product of activation is subjected to plastification in nitric acid solution at pH equal 3-4 and temperature 160-170°C. Then, water is added to plastification product until ratio solid:liquid equals 1:(5-6), and obtained suspension is subjected to spray-drying at 140-170°C.
EFFECT: invention makes it possible to reduce amount of washing waters.
1 dwg, 2 tbl
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