Methods and apparatus for fine particle formation
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United States of America Patent
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Issued Date -
Feb 14, 2002
app pub date -
May 16, 2001
filing date -
Mar 6, 1992
priority date (Note) -
Abandoned
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Abstract
Methods and apparatuses are provided for forming fine particles of a desired substance comprising dissolving said substance in a fluid such as water to form a solution and mixing the solution with a second fluid such as supercritical carbon dioxide which becomes a gas upon rapid pressure release, and with which the first fluid is at least partially immiscible, and releasing the pressure to form an air-borne dispersion or aerosol comprising particles having an average diameter between about 0.1 and about 6.5 .mu.m.
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