NANOFILTRATION PROCESS FOR IMPURITY REMOVAL
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United States of America Patent
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Jun 18, 2015
app pub date -
Jul 8, 2013
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Jul 13, 2012
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Abstract
Nanofiltration membranes have been identified that can unexpectedly provide for competitive removal of silica and sulfate from brine in alkaline conditions. Such membranes are known as monolithic nanofiltration membranes and are particularly suitable for removing silica and sulfate impurities from a brine stream in a brine electrolysis plant.
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