METHOD OF PREPARING ALUMINIUM HYDROXYCHLORIDE

METHOD OF PREPARING ALUMINIUM HYDROXYCHLORIDE

FIELD: chemical industry. SUBSTANCE: aluminium hydroxychloride is prepared by reacting aluminium hydroxide with hydrogen chloride in the presence of sulfuric acid. Gaseous hydrogen chloride is fed till 30-50% aluminium hydroxide are dissolved from charged amount, and reaction mixture is then heated...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KUZNETSOVA N.S, FOMIN S.N, ZEMLJANKIN A.P, GROSHEV G.L, KRASNOV I.M
Format: Patent
Sprache:eng
Schlagworte:
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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Beschreibung
Zusammenfassung:FIELD: chemical industry. SUBSTANCE: aluminium hydroxychloride is prepared by reacting aluminium hydroxide with hydrogen chloride in the presence of sulfuric acid. Gaseous hydrogen chloride is fed till 30-50% aluminium hydroxide are dissolved from charged amount, and reaction mixture is then heated to boiling temperature at atmospheric pressure. Sulfuric acid is added after gaseous hydrogen chloride is not supplied any longer. Original suspension of aluminium hydroxic is prepared in hydrochloric acid having concentration of 0.1-20 wt %. The present invention makes it possible to simplify process. EFFECT: more efficient preparation method. 3 cl, 2 exe