Manufacture of microspheres using a hydrocyclone
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United States of America Patent
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Apr 29, 2014
Grant Date -
Aug 16, 2012
app pub date -
Feb 16, 2011
filing date -
Feb 16, 2011
priority date (Note) -
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Abstract
This disclosure features a system for processing microspheres. A vessel contains a suspension of solidified microspheres comprising polymer and an active agent. A hydrocyclone has a fluid inlet, a first fluid outlet and a second fluid outlet. The fluid inlet is in fluid communication with the vessel and receives the suspension. The second fluid outlet contains a flow of the suspension having concentrated microspheres. The first fluid outlet contains a flow of a relatively large amount of liquid compared to the flow from the second fluid outlet. Also featured is a method of processing the microspheres using the hydrocyclone.
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