FILTER, METAL ION REMOVAL METHOD , AND METAL ION REMOVAL DEVICE
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United States of America Patent
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Issued Date -
Dec 8, 2022
app pub date -
Nov 23, 2020
filing date -
Nov 23, 2020
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Abstract
A filter includes a porous molded article, which is a sintered material of mixed powder containing activated carbon powder and thermoplastic resin powder. When water having a specific electrical resistance value of 18 MΩ·cm or greater is caused to pass through the filter at a space velocity of 1200 hr−1, a specific electrical resistance value of the water after being caused to pass through the filter is 13 MΩ·cm or greater. To provide a filter capable of efficiently removing metal ions in a treatment liquid and capable of easily obtaining a solution having an extremely low metal ion content.
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