Improving extraction yield of humic substances from lignite with anthraquinone in alkaline solution

Release time:2016-07-05

Affiliation of Author(s):Central South University

Journal:Journal of Central South University of Technology

Key Words:humic substances extraction lignite FTIR anthraquinone

Abstract:Based on the characteristics of the lignite sample, effects of assistant anthraquinone (AQ) on extraction yield of humic substances (HS) and the action mechanisms of AQ in alkaline condition were studied by Fouvier transform infrared (FT-IR) spectroscopy. The results indicate that assistant AQ can not only increase the extraction yield of HS but also reduce the alkali dosage (NaOH) as well as the extraction temperature and extraction time. Under the optimal conditions of alkali dosage of 9%, AQ dosage of 0.75%, extraction temperature of 80 °C, extraction time of 30 min, stirring speed of 600 r

Co-author:Yongbin Yang, Yufeng Guo, Guanghui Li, Yanfang Huang, Yuanbo Zhang, Guihong Han, Tao Jiang

Indexed by:Unit Twenty Basic Research

Discipline:矿业工程

Document Type:J

Volume:18

Issue:1

Page Number:68-72

Translation or Not:no

Date of Publication:2011-02-04

Links to published journals:http://xueshu.baidu.com/s?wd=paperuri%3A%28cdd59e523d19ddbb518b2c07f610b752%29&filter=sc_long_sign&tn=SE_xueshusource_2kduw22v&sc_vurl=http%3A%2F%2Flink.springer.com%2F10.1007%2Fs11771-011-0660-3&ie=u