Process And System For The Separation Of Carboxylic Acids From A Slurry
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United States of America Patent
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Issued Date -
Jul 25, 2013
app pub date -
Jun 22, 2011
filing date -
Jun 28, 2010
priority date (Note) -
Abandoned
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Abstract
In a process for the separation of carboxylic acid from a slurry in a solvent, a slurry with crystals of carboxylic acid is supplied to a filter operating at pressure and at a temperature above the atmospheric boiling point of the solvent. Inert gas is mixed with the solvent and the mixture is supplied to the filter. A cake of separated crystals is removed from the filter. Inert gas removed from the filter is not recycled. In a system for performing such separation, a pressure filter device has a slurry inlet, and an outlet. Means for mixing inert gas and solvent, and means for supplying the mixture to the pressure filter are provided. The pressure filter device is configured to operate at pressure and at a temperature above the atmospheric boiling point of the solvent. The system does not include means for recycling inert gas removed from the filter.
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