PHOSPHORUS ADSORBENT, POROUS FIBER AND PHOSPHOROUS ADSORPTION COLUMN (AS AMENDED)
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United States of America Patent
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Nov 15, 2018
app pub date -
Nov 11, 2016
filing date -
Nov 11, 2016
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Abstract
A phosphorus adsorbent, which is used for adsorbing phosphorus in extracorporeal circulation, is a powder comprising a carbonate of a rare earth metal or an oxide of a Group 4 element and having a solubility in 100 g of water at 20° C. of 10 mg or less. The porous fiber, which comprises the phosphorus adsorbent carried therein, shows a change in pH value of from −1.0 to +1.0 inclusive before and after stirring in physiological saline for 4 hours. The phosphorus adsorption columns respectively comprise the phosphorus adsorbent and the porous fiber each disposed therein.
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