Method and apparatus for mixing and separating two liquid phases while preventing aeration and emulsions using a mixer-settler
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United States of America Patent
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Feb 9, 1993
Grant Date -
N/A
app pub date -
Mar 26, 1991
filing date -
Apr 4, 1990
priority date (Note) -
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Abstract
A method and apparatus for mixing two different phases in a liquid-liquid extraction process and for separating the phases employs a spiral stirrer having two tubular coils for creating homogeneous circulation throughout a mixer. The stirrer rotates at a relatively slow speed to create an upward flow from bottom to top of the mixer near the mixer periphery and a downward flow in the middle of the mixer. The mixer has a flow reversing profile ring and is designed to prevent aeration and formation of an emulsion.
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