PROCESS OF PRODUCING ALUMINA FROM ASH-AND-SLAG WASTES

FIELD: inorganic compounds technology. SUBSTANCE: high-silicon silica-containing raw material, in particular ash-and-slag waste, is melted in reductive medium, melt is separated into metal and silicate parts, and the latter is subjected to impact cooling. Resulting alumina-containing silicate foam i...

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Bibliographic Details
Main Authors PAVLOV V.F, SHABANOV V.F
Format Patent
LanguageEnglish
Published 20.03.2003
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: high-silicon silica-containing raw material, in particular ash-and-slag waste, is melted in reductive medium, melt is separated into metal and silicate parts, and the latter is subjected to impact cooling. Resulting alumina-containing silicate foam is supplemented by dilute sulfuric acid to form aluminum sulfate solution, which is separated from solid residue, evaporated and decomposed by heating. Remaining solid residue is used as stabilized raw material for manufacturing ceramic materials. EFFECT: simplified process. 2 cl
Bibliography:Application Number: RU20010118302