Method for preparing barium-titanate based powder

Details Method for preparing barium-titanate based powder Method for preparing barium-titanate based powder

2007-02-20

2007-02-20

Vanoy, Timothy C. (Department: 1754)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S598000, C423S594160, C423S594900, C423S594120, C423S071000, C423S085000, C423S155000, C423S158000, C423S089000, C423S069000, C501S137000, C501S138000, C501S139000

Reexamination Certificate

active

10486695

ABSTRACT:
The present invention relates to a method for preparing barium titanate based powder. More particularly, the present invention provides a method for preparing barium titanate powder comprising the following steps of precipitation of barium titanyl oxalate (BaTiO(C2O4)2.4H2O) with spraying a mixture of an aqueous barium chloride (BaCl2.2H2O) and titanium tetrachloride (TiCl4) to an aqueous solution of oxalic acid, via a nozzle; wet pulverization by using a beads mill after adding an additive such as an amine; dry; pyrolysis; and re-pulverization.

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