Open AccessOne-step method for obtaining bifunctional charcoal and study of its properties
Author(s) -
Н. К. Лунёва,
Т. И. Езовитова,
В. В. Шевчук,
Alexander Ratko
Publication year - 2019
Publication title -
vescì nacyânalʹnaj akadèmìì navuk belarusì. seryâ hìmìčnyh navuk
Language(s) - English
Resource type - Journals
eISSN - 2524-2342
pISSN - 1561-8331
DOI - 10.29235/1561-8331-2019-55-4-472-482
Subject(s) - carbonization , raw material , nitric acid , sorption , residue (chemistry) , sawdust , phosphoric acid , chemistry , carbon fibers , charcoal , bifunctional , organic chemistry , materials science , adsorption , nuclear chemistry , composite material , composite number , catalysis
Single-stage process of obtaining active carbon by thermal processing of plant raw materials (mixture of different types of wood sawdust) impregnated with the mixture of phosphoric acid, urea and nitric acid salts has been developed. Active influence of impregnates on the process of carbonization and formation of carbon residue has been demonstrated. It is established that carbon residue obtained in the interval of heating 20–700 °С possesses high sorption activity to the vapors of organic compounds and has ion-exchange capacity. It has been shown that the value of carbon residue depending on the impregnate used in the wood increases by 3,1 times at 600 °С and by 4,2 times – at 700 °С as compared to the yield of non-treated initial raw materials.