Separation of cresol from mares' urine
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United States of America Patent
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May 22, 2007
Issued Date -
N/A
app pub date -
Mar 28, 2003
filing date -
Sep 29, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of separating cresol from mares' urine by pervaporation using pore-free polymeric silicone membranes in which starting urine solutions containing high-quality and -quantity conjugated estrogens with a reduced or substantially removed cresol content are provided which are advantageously suitable for obtaining natural mixtures of conjugated estrogens from pregnant mares' urine.
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