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褐煤碱性萃取液制水煤浆添加剂的研究
Study on Coal/Water Mixture Preparation from the Basic Extract of Lignite
【摘要】 确定了提取内蒙古褐煤腐殖酸的最佳实验条件,在最佳实验条件下,研究了用碱性萃取液及腐殖酸作为水煤浆添加剂的成浆性能,实验结果表明,用萃取液制水煤浆存在一个最佳稀释倍数及最佳pH值范围。在此条件下制得的水煤浆分散性能好,当粘度为1 000 mPa.s时可使定粘浓度提高0.5%,且工艺简单,成本低廉。
【Abstract】 The optical experimental conditions for withdrawing humic acid from Inner Mongolia lignite are identified.The performance of the coal/water mixture(CWM) is studied by using the extract and humic acid as CWM additives under the experimental conditions.The results obtained indicate that there is the best dilution multiple and the best pH scope.In this case,the dispersion property of CWM is good,it can make the density raise 0.5 percentage when the viscosity is 1 000 mPa·s.Morever,the craft is simple and the cost is cheap.
【关键词】 褐煤;
萃取液;
水煤浆;
添加剂;
分散性能;
【Key words】 lignite; extracted liquid; coal/water mixture; additives; dispersion property;
【Key words】 lignite; extracted liquid; coal/water mixture; additives; dispersion property;
- 【文献出处】 河南化工 ,Henan Chemical Industry , 编辑部邮箱 ,2006年10期
- 【分类号】TQ536
- 【被引频次】2
- 【下载频次】198