METHOD FOR PREPARING MODIFIED MICRONIZED PARTICLES
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United States of America Patent
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Jan 17, 2013
app pub date -
Jan 28, 2011
filing date -
Jan 29, 2010
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Abstract
The present invention provides a method for preparing modified micronized particles, comprising the steps of carrying out co-precipitation in an aqueous solution at a temperature between the freezing point and the boiling point of the reaction mother liquid to produce a mixed precipitate of micronized particles or precursors thereof and an inorganic precipitate. The method effectively solves the conflict between micronization and surface modification of particles, and resolves the problem that it is difficult to separate micronized particles from the reaction mother liquid.
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