Medical adsorbent and process for production of the same

Details Medical adsorbent and process for production of the same Medical adsorbent and process for production of the same

A - Human Necessities

61

K

A61K 33/44 (2006.01) A61P 7/00 (2006.01) A61P 39/02 (2006.01)

Patent

CA 2454435

A medical adsorbent which produces minimal side-effects such as constipation, has excellent adsorption for ionic organic compounds such as causative substances of uremia, exhibits adequate adsorption performance at low doses and avoids adsorption of high-molecular compounds necessary for the body, such as enzymes and polysaccharides. The medical adsorbent comprises activated carbon obtained by carbonizing a spherical phenol resin in a nitrogen atmosphere at a temperature of 400-1000°C, activating the carbonized spherical phenol resin at a temperature of 800-1000°C, washing it with dilute hydrochloric acid, heat treating it at a temperature of 150-1000°C in a mixed gas comprising oxygen and nitrogen and then sorting it; the activated carbon has an area to weight ratio of 500-2000 m2/g, a pore volume of 0.2-1.0 mL/g and a packing density of 0.5-0.75 g/mL.

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