1. After the silica gel absorbs normal moisture, it can be dog poop bag dispenser removed by thermal desorption. There are various heating strategies, such as electric furnace, flue heating heating and heating drying. Heating it to 120--180°C is actually more suitable, and then it is really suitable for sky blue, color-changing silica gel, and DL-blue silica gel. 100--120℃. The maximum temperature for regeneration of various commercial silica gels should not exceed these limits: Coarse pore silica should indeed not exceed 600°C Good pore silica must not exceed 200°C Luminous blue glue indicator (or color - silica) temperature should not exceed 600°C 120℃ glue should not be higher than 350℃.
Recycled silica gel, whose moisture is normally below 2%, can be put into use again.
2. Silica gel quickly regenerates after absorbing natural pollutants
(1) Roasting method For coarse-pored silica gel, the temperature can be gradually raised to about 500--600 °C in the roasting furnace, and it will take about 6-8 hours until the colloidal debris turns white or turns brown. For macroporous silica, the heat of calcination shall not exceed 200°C.
(2) Rinsing method: adsorb silica gel in soaked heavy steam to saturation, then rinse and rinse with very hot water, then combine with detergent to remove waste gas or some other organic toxins, and then rinse with clean water. Dehydrated and not properly hydrated.
(3) Solvent rinsing method: According to the form of natural organic matter adsorbed by silica gel, select a suitable solvent to adsorb organic matter on silica gel, and then heat silica gel to remove the solvent.
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