OXYGEN-CONTAINING HYDRATED ALUMINUM COMPOUND AND A METHOD OF PRODUCTION PROCESS THEREOF

FIELD: inorganic compounds technology. ^ SUBSTANCE: invention, which can be used in production of various modifications of aluminum oxides and hydroxides, aluminum salts, and so on, provides, in particular, hydrated aluminum compound of general formula Al2O3*nH2O containing 4, 5, and 6-coordination...

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Bibliographic Details
Main Authors KRUGLJAKOV V.JU, TANASHEV JU.JU, ISUPOVA L.A, KHARINA I.V, PARMON V.N
Format Patent
LanguageEnglish
Russian
Published 27.09.2004
Edition7
Subjects
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
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Summary:FIELD: inorganic compounds technology. ^ SUBSTANCE: invention, which can be used in production of various modifications of aluminum oxides and hydroxides, aluminum salts, and so on, provides, in particular, hydrated aluminum compound of general formula Al2O3*nH2O containing 4, 5, and 6-coordination aluminum cations and characterized by surface area 50 to 450 m2/g and amorphous or poorly crystallized, or partially crystalline structure. When n = 0.01 to 2.99, average particle size of the powder varies from 20 to 150 mcm. Thermogram of this compound indicates exothermic effect in the temperature range 780-850 characteristic of regular crystalline structure. Oxygen-containing hydrated aluminum compound is obtained by rapid thermal-shock treatment of aluminum hydroxide at elevated temperature followed by forced cooling, said thermal-shock treatment being conducted in heat-insulated chamber under centrifugal force effect on aluminum hydroxide spread in thin layer on rotating surface heated to 330-1500 for a period of time 0.01 to 10 sec while simultaneously trapping releasing water vapors. ^ EFFECT: enabled preparation of chemically active aluminum compound not polluted with combustion products and having stable structure. ^ 5 cl
Bibliography:Application Number: RU20030114546