Method and apparatus for solution/separation at predetermined temperature with solvent set undergoing temperature-dependent reversible change between solution phase and separation phase
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United States of America Patent
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Issued Date -
Feb 22, 2007
app pub date -
Apr 27, 2004
filing date -
May 1, 2003
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Abandoned
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Abstract
A method for solution/separation phase change at a constant temperature (with no temperature change) in a combination of a first solvent and a second solvent of a mixture of plural solvents that undergoes temperature-dependent reversible change between solution phase and separation phase. A method for solubilization or phase separation of first and second solvents at a constant temperature by adding thereto a solvent that constitutes the first solvent and/or the second solvent, on the basis of the solution/separation temperature data relative to the blend ratio of the first and second solvents and the composition blend ratio of the second solvent in the solvent set that is in a separation phase, in such a manner that the first and second solvents may have a blend ratio at which they may undergo solution/separation phase change at a temperature lower than the temperature of the separation-phase solvent set.
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