郑州大学学报（工学版）2017，Vol.38Issue(3)：20-24,5.DOI:10.13705/j.issn.1671-6833.2016.06.004
微细粒褐煤中腐植酸的水溶特性及其影响研究
Water-Soluble Characteristics and the Effects of Humic Acids on Micron-Sized Lignite
摘要
Abstract
In order to make use of lignite,the dissolution of HA in lignite with the change of soaking temperature,and the content of total acid group,hydrophilieity and charge of lignite surface after dissolution was investigated.The result showed that the capacity of dissolution of HA in lignited increased with the increase of soaking time and temperature.When soaking temperature was 50 ℃,soaking time 2 h,the capacity of HA was 15.636 mg/L.The analysis of FTIR was used.And the lignite after dissolution was characterized.The total acid groups,contact angle and zeta-potential of lignite after dissolution were determined.This research showed that the oxygen-containing functional groups of lignite after dissolution decreased from 2.768 mmol/g to 2.431 mmol/g,the contact angle increased from 100.75° to 105.33°;and the Zeta-potential increased from-49.01 mV to-46.14 mV with the increase of temperature.关键词
褐煤/腐植酸/溶解/含氧官能团/接触角/zeta电位Key words
lignite/humic acids/dissolution/oxygen-containing functional groups/contact angle/Zeta-potential分类
化学化工引用本文复制引用
邢龙杰,黄艳芳,王文娟,韩桂洪,刘炯天..微细粒褐煤中腐植酸的水溶特性及其影响研究[J].郑州大学学报（工学版）,2017,38(3):20-24,5.基金项目
国家自然科学基金资助项目(51674225 （）
51404213) （）
