Parametric optimization and structural feature analysis of humic acid extraction from lignite

• Main Authors: Rashid, Tazien, Sher, Farooq, Jusoh, Mazura, Joya, Tayab Ali, Zhang, Shengfu, Rasheed, Tahir, Lima, Eder C.
• Format: Article
• Language: English
• Published: Academic Press Inc. 2023
• Subjects: TP Chemical technology
• Online Access: http://eprints.utm.my/107270/1/MazuraJusoh2023_ParametricOptimizationAndStructuralFeatureAnalysis.pdf; http://eprints.utm.my/107270/; http://dx.doi.org/10.1016/j.envres.2022.115160

Humic acid (HA) is a complex organic compound made up of small molecules. A variety of raw materials are used to manufacture HA, due to which the structure and composition of HA vary widely. In this study, nitric acid oxidation of two coal samples from Lakhra (Pakistan) was followed by HA extraction...