KALZINIERUNG VON TITANDIOXID

A method for calcining titanium dioxide comprises monitoring the conversion of anatase titanium dioxide to rutile titanium dioxide by positioning an optical probe close to a calcination kiln and monitoring the Raman spectrum produced by the titanium dioxide. Control of the kiln operation is improved...

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Bibliographische Detailangaben
Hauptverfasser:	BESSON, JEAN PIERRE, WILKINS, TERENCE ARTHUR, KING, PETER WILLIAM BERT, MCIVOR, MALCOLM CHARLES, EVERALL, NEIL JOHN
Format:	Patent
Sprache:	ger
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COLORIMETRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F DYES INORGANIC CHEMISTRY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS POLISHES PREPARATION OF CARBON BLACK RADIATION PYROMETRY TESTING THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Beschreibung
Zusammenfassung:	A method for calcining titanium dioxide comprises monitoring the conversion of anatase titanium dioxide to rutile titanium dioxide by positioning an optical probe close to a calcination kiln and monitoring the Raman spectrum produced by the titanium dioxide. Control of the kiln operation is improved because the method provides a more rapid feedback of the degree of conversion than traditional methods such as X-ray fluorescence.