发明名称 |
Alkaline earth metal ferrite and ferric oxide admixture |
摘要 |
A method is disclosed for the manufacture of particles composed of an intimate admixture of barium or strontium ferrite and ferric oxide from a chloride solution containing barium or strontium ions and ferrous ions by a pyrohydrolysis reaction. The presence of carbon dioxide in the heated atmosphere in which pyrohydrolysis of an admixture of alkaline earth metal chloride and iron chloride is carried out has been discovered to substantially decrease the temperature required for reaction to occur.
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申请公布号 |
US6660242(B2) |
申请公布日期 |
2003.12.09 |
申请号 |
US20010035381 |
申请日期 |
2001.12.28 |
申请人 |
MAULDIN LLOYD BALLARD;COOK JERRY ALLEN |
发明人 |
MAULDIN LLOYD BALLARD;COOK JERRY ALLEN |
分类号 |
C01D1/02;C01G49/00;C04B35/26;C04B35/64;(IPC1-7):C01D1/02 |
主分类号 |
C01D1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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