Chemistry 2 (2016 9) 188-200 ~ ~ ~ УДК 676.16.022.6.031 The Infl uence of Conditions of Birch Wood Peroxide Catalytic Delignifi cation on the Yield and Composition of Cellulosic Products Olga V. Yatsenkovaa Andrei M. Skripnikova a , Irina G. Sudakovaa , and Boris N. Kuznetsov*а,b Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia b Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia Received 07.02.2016, received in revised form 18.04.2016, accepted 28.05.2016 The yield and composition of cellulosic products obtained from birch wood by peroxide catalytic delignifi cation, integrated with an acidic prehydrolysis of wood and alkali treatment of cellulosic product were compared. <...> Catalysts H2 SO4 and TiO2 were used in peroxide delignifi cation of birch wood. <...> The maximum yield of cellulosic product (66 % mass.) was obtained by wood delignifi cation in the medium “hydrogen peroxide – acetic acid – water – catalyst TiO2 product contains 72,3 % mass. of cellulose, 20,2 % mass. of hemicelluloses and 2,9 % mass. of lignin. <...> Cellulosic products, containing 93,1–95,5 % mass. of cellulose, 1,7-2,5 % mass. of hemicelluloses and less than 1 % mass. of lignin are obtained in two ways. <...> Keywords: birch wood, peroxide delignifi cation, acid prehydrolysis, alkali treatment, catalysts, H2 SO4 , TiO2 , cellulosic product, composition. <...> All rights reserved * Corresponding author E-mail address: inm@icct.ru # 188 # Olga V. Yatsenkova, Irina G. Sudakova… <...> The Infl uence of Conditions of Birch Wood Peroxide Catalytic Delignifi cation… <...> Влияние условий пероксидной каталитической делигнификации древесины березы на выход и состав целлюлозных продуктов <...>