POROUS FIBER, ADSORBENT MATERIAL, AND PURIFICATION COLUMN
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United States of America Patent
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May 2, 2019
app pub date -
Apr 20, 2017
filing date -
Apr 20, 2017
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Abstract
A solid fiber has a modified cross-section which satisfies the following (a) to (b): (a) a modification degree Do/Di, in a cross section of the solid fiber, is 1.20 to 8.50 when the inscribed circle diameter is denoted by Di and the circumscribed circle diameter is denoted by Do; and (b) a porous specific surface area of the fiber is not less than 30 m2/g. An adsorbent material comprises not less than 28 vol % of the porous fiber as a fiber bundle. A purification column is formed by arranging the adsorbent material in the straight form in an axis direction of a plastic casing and by attaching an inlet port and an outlet port of a fluid that is to be treated to both ends of the plastic casing. The porous fiber can efficiently adsorb a removal target substance in the fluid that is to be treated, and a purification column incorporates the porous fiber.
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