adsorbent for anionic substances, production method for adsorbent for anionic substances, production device for adsorbent for anionic substances and recovery method for anionic substances

摘要

the present invention provides an adsorbent which is for anionic substances based on phosphoric acid, which contains cellular glass foam and which has a ca2p concentration of 7.5% atoms or more or a concentration of 5.0% Na2 atoms or less on its surface, as measured by xps analysis, and a half-peak peak of si2p of 2.4 ev or more. the adsorbent also preferably has a specific surface area of 45 m2 / g or more or a pore volume of 2.5 cm3 / g or more, as measured by mercury intrusion.