The decolourizing ability for beau oil is approximately 180,even 200 if 10% activated carbon has been added.This presents that the activated shale possesses potential industrial useness.

• 页岩经酸活化后具有很好的吸附能力，对豆油的脱色力约180左右，与10%25活性炭混合使用时脱色力可达到200。