Method for producing metal oxide sol

Details Method for producing metal oxide sol Method for producing metal oxide sol

2005-08-08

2009-06-30

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S069000, C423S071000, C423S081000, C423S089000, C423S098000, C423S099000, C423S100000, C423S109000, C423S111000, C423S112000, C423S115000, C423S131000, C423S138000, C423S139000, C423S150100, C423S155000, C423S157000, C423S335000, C423S594100, C423S594200, C423S594300, C423S594400, C423S594160, C423S594190, C423S608000, C423S610000, C423S618000, C423S622000, C423S624000, C423S625000, C423S630000, C423S632000, C423S635000, C423S636000, C423S637000, C502S325000, C502S328000, C502S329000, C502S332000, C502S

Reexamination Certificate

active

07553474

ABSTRACT:
It is an object to provide a method for producing stable alkaline metal oxide sols having a uniform particle size distribution. The method comprises the steps of: heating a metal compound at a temperature of 60° C. to 110° C. in an aqueous medium that contains a carbonate of quaternary ammonium; and carrying out hydrothermal processing at a temperature of 110° C. to 250° C. The carbonate of quaternary ammonium is (NR4)2CO3or NR4HCO3in which R represents a hydrocarbon group, or a mixture thereof. The metal compound is one, or two or more metal compounds selected from a group of compounds based on a metal having a valence that is bivalent, trivalent, or tetravalent.

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