Библиографическое описание:Experimental and Mathematical Optimization of the Peroxide Delignification of Larch Wood in the Presence of MnSO(4)Catalyst : научное издание / I. G. Sudakova [et al.]. - Текст : непосредственный // Catal. Ind. - 2020. - Vol. 12, Is. 3. - P. 265-272. - Cited Reference Count: 25. - This work was supported by the Russian Science Foundation, project no. 16-13-10326. - JUL. - ISSN 2070-0504. - ISSN 2070-0555, DOI 10.1134/S2070050420030125.
Аннотация:Experiments and calculations are used to determine the optimum parameters of the peroxide delignification of larch wood in the presence of MnSO(4)catalyst that provides high yields of cellulose (44.3 wt %) with low residual lignin contents at a temperature of 100 degrees C, an H(2)O(2)content of 6 wt %, a CH3COOH content of 25 wt %, a LWR of 15, and a duration of 3 h The cellulose obtained under optimum conditions has a chemical composition of cellulose, 92.7 wt %; lignin, 0.6 wt %; and hemicellulose, 5.7 wt %. IRS and X-ray diffraction are used to determine that cellulose obtained from larch wood has a structure similar to that of industrial microcrystalline cellulose. The proposed catalytic approach allows cellulose to be obtained from larch wood with a minimal lignin content under mild conditions in one step and with a high yield, a degree of crystallinity of 0.8, and a crystallite size of 3.0 nm.
