Production of alkaline earth metal ferrites
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United States of America Patent
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Issued Date -
Jul 3, 2003
app pub date -
Dec 28, 2001
filing date -
Dec 28, 2001
priority date (Note) -
Abandoned
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Abstract
A method is disclosed for the manufacture of barium or strontium ferrite from a chloride solution containing barium or strontium ions and ferrous ions by a pyrohydrolysis reaction catalyzed by carbon dioxide. 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 substantially decreases the temperature required for reaction to occur.
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