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How to regenerate silica gel after absorbing organic impurities?

⒈ Baking Method For coarse-pored silica gel, it can be placed in baking furnace to rise to 500 ℃ to 600 ℃ and the gel granules will take on white or yellow brown after 6 to 8 hours. For fine-pored silica gel, the baking temperature should not be over 200 ℃. ⒉ Bleaching Method After silica gel’s absorption in saturated water vapor reaching to saturation level, put silica gel into hot water for soaking and bleaching. Additionally, remove waste oil or other organic impurities in combination with detergent. ⒊ Solvent Washing Method According to the variety of organic substance absorbed by silica gel, please select appropriate solvent to dissolve the organic substances absorbed in silica gel and then heat the silica gel to remove the solvent.