| 摘要 |
PURPOSE: A fine ceramic filter composition is provided to improve cleaning effect and protect environment by applying the fine ceramic filter composition to a filter. CONSTITUTION: A fine ceramic filter composition includes 45 to 50 weight% of silica, 20 to 25 weight% of aluminum oxide, 5 to 7 weight% of ferrous oxide, 25 to 7 weight% of ferric oxide, 2 to 4 weight% of magnesium oxide, 1 to 3 weight% of calcium oxide, 2 to 4 weight% of sodium, 3 to 5 weight% of potassium, 0.1 to 0.5 weight% of titanium dioxide, 0.01 to 0.5 weight% of anhydrous phosphoric acid, 0.1 to 0.5 weight% of manganese oxide, and 0.5 to 1.5 weight% of other components. The other components are natural rare minerals including Ti, Se, Ge, or Mn.
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