| 发明名称 |
Method for preparing barium-titanate based powder |
| 摘要 |
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(C<SUB>2</SUB>O<SUB>4</SUB>)<SUB>2</SUB>.4H<SUB>2</SUB>O) with spraying a mixture of an aqueous barium chloride (BaCl<SUB>2</SUB>.2H<SUB>2</SUB>O) and titanium tetrachloride (TiCl<SUB>4</SUB>) 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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| 申请公布号 |
US7179441(B2) |
申请公布日期 |
2007.02.20 |
| 申请号 |
US20040486695 |
申请日期 |
2004.08.16 |
| 申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
JUNG JAE CHUL;YANG WOO YOUNG;KIM KEON IL;PARK YUN JUNG;LEE JUN HEE;HUR KANG HEON;PARK SEON CHEOL;LEE JAI JOON |
| 分类号 |
C01F11/00;C01G23/00;H01G4/12 |
主分类号 |
C01F11/00 |
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