FIELD: production of active coal which is used for purification of aqueous medium against organic acids, aldehydes, ketones and other organic impurities. SUBSTANCE: raw materials are ground and then are affected by carbonization. The process takes place in stream of carbon dioxide at 400-750 C, ratio of fruit kernel and gas being 1:100-120. Thus prepared carbonizate is cooled to 20-50 C and then it is affected by secondary carbonization at 750-900 C, heating rate being 2-7 C/min. Then steam and gas activation and screening of desired product are carried out. Yield of active coal is increased up to 48 %, in active coal volume of micropores with radius 0.5-0.7 nm is predominated. EFFECT: improved adsorption indexes of desired product.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCTION OF CRUSHED ACTIVATED COAL | 1997 |
|
RU2105714C1 |
| METHOD OF PRODUCING ACTIVATED MODIFIED CARBON | 2016 |
|
RU2622660C1 |
| METHOD OF PREPARING CRUSHED ACTIVATED CARBON | 2000 |
|
RU2171778C1 |
| METHOD OF AN ACTIVATED CARBON PRODUCING | 1997 |
|
RU2114057C1 |
| METHOD OF PRODUCING CRUSHED ACTIVE COAL | 2018 |
|
RU2685653C1 |
| METHOD OF PREPARING CRUSHED ACTIVATED CARBON FROM NUTSHELL | 2002 |
|
RU2228293C1 |
| METHOD OF PRODUCING CARBONACEOUS ADSORBENT | 2008 |
|
RU2372287C1 |
| METHOD OF PRODUCING ACTIVE COAL FROM BONES OF FRUIT TREES | 2019 |
|
RU2715538C1 |
| METHOD OF OBTAINING ACTIVE COAL | 2007 |
|
RU2339573C1 |
| METHOD OF PREPARING SORBENT-CATALYST | 1995 |
|
RU2083274C1 |
