The influences of removal of metal ions or of addition of metal ions on the subsequent ignition and combustion of wood and wood chars can be dramatic the major indigenous inorganic constituents of wood consist of inorganic salts and of metal ions bound to the uronic acids of hemicelluloses both can be completely removed by washing the wood with dilute acid at room temperature individual . Water science and technology a journal of the international association on water pollution research 2018 acs symposium series 2017 1250 ionic liquids current state and future directions 209 223 coden acsmc8 issn 0097 6156 american chemical society low cost pretreatment of lignocellulosic biomass is an essential next step toward large scale deployment as renewable liq . Puls j saake b industrially isolated hemicelluloses in hemicelluloses science and technology gatenholm p tenkanen m eds acs symposium series 864 american chemical society washington dc 2004 pp 24 37 book title in general book titles should not be abbreviated they are set in italic type and are separated from the next . A simple method was reported to directly synthesize lignin based hydrogels through copolymerization of lignin with crosslinking agents 4748in order to increase the activities lignin was phenolated to increase its phenolic hydroxyl groups as shown in fig 3 lignin and its derivates were reacted with acid catalysis and crosslinkers such as formaldehyde and paraformaldehyde to form a
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