GRANULAR TITANIUM DIOXIDE AND ITS PRODUCION

PURPOSE: To produce a granular titanium dioxide useful as a Ti starting material for a metallic compd. and ceramic, low in adhesion property and having excellent flow property. CONSTITUTION: The granular titanium dioxide has 25-100μm average grain size and 1-50m /g specific surface area. The granula...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	OKAZAKI NAOMI, NAGAOKA SHIGERU, YOSHIMOTO AKIHIRO, HARADA TAKASHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INORGANIC CHEMISTRY METALLURGY
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE: To produce a granular titanium dioxide useful as a Ti starting material for a metallic compd. and ceramic, low in adhesion property and having excellent flow property. CONSTITUTION: The granular titanium dioxide has 25-100μm average grain size and 1-50m /g specific surface area. The granular titanium dioxide is obtained by burning a crystallized mater obtained by heating and crystallizing after adding a hydrated titanyl sulfate crystal or granular titanium dioxide as a base material to a titanyl sulfate soln. having 30-140g/l TiO2 concn. and 800-1150g/l sulfuric acid concn. and whose wt. ratio of H2 SO4 /TiO2 is adjusted to 8-30 or to the titanyl sulfate soln. adjusted to a prescribed concn. at 700-1200 deg.C.