METHOD OF TITANIUM DIOXIDE PRODUCING (VARIANTS)

FIELD: inorganic chemistry, chemical technology. SUBSTANCE: method is based on pyrohydrolysis of ammonium oxofluorotitanate as titanium fluoroammonium salt. By the second variant ammonium oxofluorotitanate is suspended into magnesium hexafluoro-silicate solution. Suspension containing 0.5-8% of MgO...

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Bibliographische Detailangaben
Hauptverfasser:	DIDENKO N.A, GORDIENKO P.S, PASHNINA E.V, GONCHARUK V.K, BAKEEVA N.G
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INORGANIC CHEMISTRY METALLURGY
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Beschreibung
Zusammenfassung:	FIELD: inorganic chemistry, chemical technology. SUBSTANCE: method is based on pyrohydrolysis of ammonium oxofluorotitanate as titanium fluoroammonium salt. By the second variant ammonium oxofluorotitanate is suspended into magnesium hexafluoro-silicate solution. Suspension containing 0.5-8% of MgO with respect to TiO2 is obtained, pH value of suspension is brought about to 10-11, precipitate is separated and subjected its to pyrohydrolysis. Invention can be used in production of finely dispersed titanium pigment for enamels, water-dispersed and polygraphic dyes, heat-resistant glasses, ceramics, piezomaterials and so on. EFFECT: producing anatase modification of titanium dioxide, improved photostability. 2 cl, 1 tbl, 2 ex