O-305 鉄触媒炭化木炭の高分子液相吸着性能に及ぼすCO_2エッチング処理効果(セッション3:技術2:炭化・燃焼,研究発表,(口頭発表))

概要

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For production of high capacity liquid phase adsorbent for macromolecules, iron-loaded larch char prepared by 850℃-carbonization was subjected to washing with acid followed by etching with CO_2 at 750-850℃. Obtained results showed that this etching was very effective at 800℃ in particularly enhancing the capacity for dextran. This was explained by adequate collapse of graphitic shell chains as the gradient of crystal carbon, so that higher accessibility of the adsorbate molecule to the adsorbent can be achieved. This etching was superior to that with E_2O at the same temperature in not only the effect but also the operation cost. It was thus recommended to adopt the CO_2-etching for this purpose.
2012-01-18