TY - JOUR PB - Elsevier Ltd SN - 09608524 EP - 218 AV - none TI - Extraction and characterization of lignin from oil palm biomass via ionic liquid dissolution and non-toxic aluminium potassium sulfate dodecahydrate precipitation processes SP - 212 N1 - cited By 73 Y1 - 2015/// VL - 192 A1 - Mohtar, S.S. A1 - Tengku Malim Busu, T.N.Z. A1 - Md Noor, A.M. A1 - Shaari, N. A1 - Yusoff, N.A. A1 - Bustam Khalil, M.A. A1 - Abdul Mutalib, M.I. A1 - Mat, H.B. JF - Bioresource Technology UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930221658&doi=10.1016%2fj.biortech.2015.05.029&partnerID=40&md5=2fa9e3e66a77e238796d6de118b1da99 ID - scholars5781 KW - Aluminum; Aluminum chloride; Biomass; Chlorine compounds; Dissolution; Extraction; Ionic liquids; Palm oil; Potassium; Precipitation (chemical) KW - 1-Butyl-3-methylimidazolium chloride; Aluminum potassium sulfate dodecahydrate; Degradation temperatures; Ionic liquid dissolutions; Lignin extractions; Oil palm biomass; Precipitation methods; Precipitation process KW - Lignin KW - 1 butyl 3 methylimidazolium chloride; aluminum potassium sulfate; aluminum potassium sulfate dodecahydrate; hydrochloric acid; hydrogen peroxide; ionic liquid; lignin; unclassified drug; 1-butyl-3-methylimidazolium chloride; aluminum potassium sulfate; aluminum sulfate; carbon dioxide; imidazole derivative; ion; ionic liquid; lignin; palm oil; solution and solubility; vegetable oil KW - aluminum; biomass; dissolution; lignin; pH; precipitation (chemistry) KW - Article; biomass; degradation; dissolution; Elaeis; extraction; molecular weight; nonhuman; oil palm biomass; pH; precipitation; priority journal; temperature; biomass; chemistry; solubility; solution and solubility KW - Elaeis KW - Alum Compounds; Biomass; Carbon Dioxide; Chemical Precipitation; Hydrogen-Ion Concentration; Imidazoles; Ionic Liquids; Ions; Lignin; Plant Oils; Solubility; Solutions N2 - The objective of this study is to extract and characterize lignin from oil palm biomass (OPB) by dissolution in 1-butyl-3-methylimidazolium chloride (bmimCl), followed by the lignin extraction through the CO2 gas purging prior to addition of aluminum potassium sulfate dodecahydrate (AlK(SO4)2·12H2O). The lignin yield, YL (%wt.) was found to be dependent of the types of OPB observed for all precipitation methods used. The lignin recovery, RL (%wt.) obtained from CO2-AlK(SO4)2·12H2O precipitation was, however dependent on the types of OPB, which contradicted to that of the acidified H2SO4 and HCl solutions of pH 0.7 and 2 precipitations. Only about 54% of lignin was recovered from the OPB. The FTIR results indicate that the monodispersed lignin was successfully extracted from the OPT, OPF and OPEFB having a molecular weight (MW) of 1331, 1263 and 1473g/mol, and degradation temperature of 215, 207.5 and 272°C, respectively. © 2015 Elsevier Ltd. ER -