Synergistic Extraction and Characterization of Fulvic Acid by Microwave and Hydrogen Peroxide–Glacial Acetic Acid to Oxidize Low-Rank Lignite
Yingjie Zhang, Guanqun Gong, Honglei Zheng, Xin Yuan, Liangwei Xu
Abstract
H NMR showed that there were hydrogen atoms present as part of carboxyl, aromatic, phenolic hydroxyl, and aliphatic groups in FA. The (GC-MS) results suggested that FA is a mixture of dozens of complex compounds, including alkanes, alcohols, esters, etc.
Topics & Concepts
ChemistryAcetic acidHydrogen peroxideExtraction (chemistry)Proton NMRYield (engineering)Nuclear chemistryOrganic chemistryMetallurgyMaterials sciencePlant Growth Enhancement TechniquesCoal and Its By-productsHumic Substances and Bio-Organic Studies