公开(公告)号：US10239792B2

公开(公告)日：2019-03-26

申请号：US14475091

申请日：2014-09-02

Applicant: EEStor, Inc.

Inventor： Richard D. Weir ,  Carl W. Nelson

IPC: C04B35/468 ,  C04B35/626 ,  C04B35/49 ,  C01G1/02 ,  C01G23/00 ,  C01B13/18 ,  C01B13/36 ,  C04B40/00

Abstract: A method of forming composition-modified barium titanate ceramic particulate includes mixing a plurality of precursor materials and a precipitant solution to form an aqueous suspension. The plurality of precursors include barium nitrate, titanium chelate, and a metal or oxometal chelate. The precipitant solution includes tetraalkylammonium hydroxide and tetraalkylammonium oxalate. The method further includes treating the aqueous suspension at a temperature of at least 150° C. and a pressure of at least 200 psi, and separating particulate from the aqueous suspension after treating.

公开(公告)号：US20160023954A1

公开(公告)日：2016-01-28

申请号：US14475091

申请日：2014-09-02

Applicant: EEStor, Inc.

Inventor： Richard D. Weir ,  Carl W. Nelson

IPC: C04B35/468 ,  C04B40/00 ,  C01G23/00

CPC classification number: C04B35/4682 ,  C01B13/185 ,  C01B13/363 ,  C01G1/02 ,  C01G23/003 ,  C01G23/006 ,  C01P2002/34 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/53 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/40 ,  C01P2006/80 ,  C01P2006/90 ,  C04B35/49 ,  C04B35/62655 ,  C04B40/0082 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3244 ,  C04B2235/3262 ,  C04B2235/441 ,  C04B2235/449 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/5481 ,  C04B2235/762

Abstract: A method of forming composition-modified barium titanate ceramic particulate includes mixing a plurality of precursor materials and a precipitant solution to form an aqueous suspension. The plurality of precursors include barium nitrate, titanium chelate, and a metal or oxometal chelate. The precipitant solution includes tetraalkylammonium hydroxide and tetraalkylammonium oxalate. The method further includes treating the aqueous suspension at a temperature of at least 150° C. and a pressure of at least 200 psi, and separating particulate from the aqueous suspension after treating.

Abstract translation: 形成组合物改性的钛酸钡陶瓷颗粒的方法包括混合多种前体材料和沉淀剂溶液以形成水性悬浮液。 多种前体包括硝酸钡，钛螯合物和金属或氧化金属螯合物。 沉淀剂溶液包括四烷基氢氧化铵和四烷基铵草酸盐。 该方法还包括在至少150℃的温度和至少200psi的压力下处理水性悬浮液，并在处理后从水性悬浮液中分离颗粒。