Compacted activated charcoal filter material

摘要

Filter material in the form of activated charcoal compacts useful for selectively separating an organic phase from an inorganic phase, is prepared by a process comprising the following steps. A. Homogeneously blending activated charcoal particles having a particle size distribution of 1-100 mu m with psuedoboehmite-configured aluminum oxide in a weight ratio of 1:1 to 5:1; B. Adding distilled water to the homogeneous mixture while thoroughly mixing the same; C. Adding dilute acetic acid to the aqueous mixture while thoroughly mixing the same; D. Adding more distilled water to the mixture; E. Compacting the resulting mixture into tablets or similar objects in a mold under pressure, and F. Successively heating the resulting molded objects first at 80-100 DEG C. for 6 to 10 hours, then at 140 DEG -160 DEG C. for 8 to 10 hours, and finally at 180 DEG -200 DEG C. for 6 to 10 hours.