FIELD: chemistry.
SUBSTANCE: invention relates to chemical processing of wood, in particular to a method of producing microporous carbon sorbents. Method of producing activated charcoal involves mixing milled initial or preliminary heat treated at 280-350 °C birch bark with potassium hydroxide, taken either in solid form or in form of a solution, carbonisation at 600-800 °C in argon atmosphere, washing obtained product to neutral pH and drying.
EFFECT: technical result is improved sorption properties of carbon sorbent from birch bark due to improved microstructure.
1 cl, 8 ex, 1 tbl
Title | Year | Author | Number |
---|---|---|---|
METHOD OF OBTAINING CARBON ADSORBENT | 2012 |
|
RU2518579C1 |
METHOD OF BIRCH BARK CONVERSION | 2008 |
|
RU2352350C1 |
METHOD OF BIRCH BARK CONVERSION | 2008 |
|
RU2352349C1 |
METHOD TO PRODUCE CARBON ADSORBENT | 2010 |
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RU2436625C1 |
METHOD OF PRODUCING MICROPOROUS CARBON MATERIAL WITH CELL-LIKE STRUCTURE | 2023 |
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RU2818442C1 |
METHOD FOR COMPLEX PROCESSING OF BIRCH BARK | 2016 |
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RU2618892C1 |
COMPOSITE VETERINARY PREPARATION AND METHOD FOR PREPARING IT | 2011 |
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RU2477125C1 |
METHOD OF PRODUCING MICROPOROUS CARBON MATERIAL FROM LIGNOCELLULOSE MATERIAL | 2009 |
|
RU2393111C1 |
PROCESS FOR CARBON SORBENT PREPARATION | 2016 |
|
RU2616679C1 |
ENTEROSORBENT | 2009 |
|
RU2389498C1 |
Authors
Dates
2016-04-20—Published
2015-01-12—Filed