FIELD: chemistry.
SUBSTANCE: claimed is production method, which includes raw material crushing, drying, introduction of chemical activating agent, activation, washing and drying of final product. As raw material used is wood or technical lignin or peat. Potassium or sodium hydroxide is used as chemical activating agent. Drying is carried out at temperature 280-600°C. Activation is realized in atmosphere of steam gases with increase of temperature to 550-800°C. washing is carried out in three stages at temperature 70-90°C. At the first stage washing is performed with water, then with hydrochloric acid and at the last stage with water.
EFFECT: increase of adsorption ability of activated coal by iodine, and by methylene blue.
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Authors
Dates
2014-12-10—Published
2013-06-03—Filed