| 摘要 |
The poison-removing composition is produced by (a) mixing 30 % granite phophyry, 30 % allophane and 40 % zeolite, and crushing the mixt. to be 20-30 mesh, (b) calcining it at 1000 deg.C in the Z furnace, (c) finely crushing it to make a calcined powder and (d) mixing 30 % calcined powder with 60 % vermiculite powder, 5 % talc powder, 1 % A.E. agent, 1 % animal fats and oils, 1 % surface activating agent and 3-5 % selenium. The composition is used in the mfr. of lightweight concrete to be harmless to the animals, plants and human.
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