Zinc chloride & Phosphoric acid & Steamed wood-based activated carbons
With mesh size 8X30, 8X80, 200, 325….mainly used for decolorization, refinement and purification in the form of regular or acid-washed;
Can be customized.
Production process:
ZnCl2 and H3PO4 activation
1. Drying and sieving the sawdust of fir and pine;
2. Impregnating the sawdust with ZnCl2 or H3PO4 solution;
3. Carbonizing and activating the mixture in rotary kiln;
4. Rinsing activating materials to recover the ZnCl2 or H3PO4 and remove some impurities;
5. Drying;
6. Powdering;
7. Putting finished and eligible carbons into packages.
Steamed activation
1. Carbonizing materials by smolder in soil furnace;
2. Activating the carbonizing material in rotary kiln;
3. Granulating or powdering;
4. Putting finished and eligible carbons into packages.