ACTIVATED CARBON FROM MICROCRYSTALLINE CELLULOSE Russian patent published in 2013 - IPC C01B31/08 C01B31/14 A24D3/16 

FIELD: chemistry.

SUBSTANCE: invention relates to production of activated carbon. Disclosed is a method of forming activated carbon from microcrystalline cellulose, involving: converting microcrystalline cellulose powder into microcrystalline cellulose granules by mixing microcrystalline cellulose powder with water and extrusion to obtain spherical granules. The method involves carbonisation the microcrystalline cellulose to obtain carbonised microcrystalline cellulose and activation of the carbonised microcrystalline cellulose to obtain activated carbon. Disclosed also is a method of making a smoking article filter which contains the obtained activated carbon granules, and a method of making a smoking article having said filter.

EFFECT: invention provides an optimum porous structure of activated carbon used in smoking article filters.

9 cl, 2 dwg