FIELD: chemistry.
SUBSTANCE: invention relates to obtaining active coal from lignin-containing raw material. The method of obtaining active coal involves mixing lignin-containing material ground up to particle size of 0.25-1.00 mm with solid sodium or potassium hydroxide in mass ratio 1:1-1:3 respectively, subsequent carbonisation in an inert atmosphere while raising temperature at a rate of 1-20°C/min to 800°C, maintaining that temperature for 1 hour, washing the end product with water, acid solution and then repeatedly with water until attaining a neutral medium and drying.
EFFECT: obtaining active coal with high porosity index and sorption activity.
1 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING MICROPOROUS CARBON MATERIAL FROM LIGNOCELLULOSE MATERIAL | 2009 |
|
RU2393111C1 |
| METHOD TO PRODUCE CARBON ADSORBENT | 2010 |
|
RU2436625C1 |
| METHOD FOR PREPARATION OF POROUS CARBON MATERIALS FROM BROWN COAL | 2008 |
|
RU2359904C1 |
| METHOD FOR PRODUCING ACTIVATED CARBON | 2015 |
|
RU2582132C1 |
| METHOD OF PRODUCTION OF THE NANOSTRUCTURE CARBONIC MATERIAL WITH THE HIGH SPECIFIC SURFACE AND MICROPOROSITY | 2006 |
|
RU2311227C1 |
| METHOD OF OBTAINING ACTIVATED COAL | 2013 |
|
RU2534801C1 |
| METHOD OF OBTAINING CARBON ADSORBENT | 2012 |
|
RU2518579C1 |
| ENTEROSORBENT | 2009 |
|
RU2389498C1 |
| METHOD FOR PREPARATION OF MESOPOROUS CARBON MATERIAL | 2008 |
|
RU2366501C1 |
| ENTEROSORBENT AND A METHOD FOR PREPARATION THEREOF | 2006 |
|
RU2311954C2 |
