新型腐植酸基水煤浆分散剂的合成与性能  

SYNTHESIS AND PROPERTIES OF NEW HUMIC ACID BASE COAL-WATER-SLURRY DISPERSANTS

作　　者：张光华[1] 卫颖菲[1] 李俊国[1] 牛育华[1] 屈倩倩[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,西安教授博士生导师710021

出　　处：《煤炭转化》2013年第4期68-71,共4页Coal Conversion

基　　金：国家自然科学基金资助项目(21176148);陕西省教育厅产业化培育项目(2010JC03);陕西省教育厅科技计划项目(11JK0609);陕西省农业科技创新项目(2012NKG02-09)

摘　　要：以腐植酸为原料,通过磺甲基化和缩聚反应,合成了一种具有良好水溶性和较高分子量的新型腐植酸系水煤浆分散剂.改变亚硫酸钠及甲醛用量对所合成分散剂进行工艺优化,确定最佳用量分别为22%和40%.采用红外、热重及凝胶渗透色谱等分析方法对产物进行结构表征;根据分散剂的不同添加量对水煤浆的黏度及稳定性进行分析,得出当水煤浆浓度为63%,分散剂用量为水煤浆总重量(干基煤)的0.6%时,水煤浆具有最低的表观黏度588mPa·s.Humic acid as basic raw materials,the subjected to sulfomethylation and condensation polymerization reaction,synthesis of a humic acid based dispersant has a good water solubility and higher molecular weight of the new.Change of the amount of sodium sulfite and formaldehyde synthesis of the dispersant process optimization,to determine the optimum amount of 22 ％ and 40％.Using IR,TG and GPC other analytical methods to structural characterization.It was obtained when CWS the concentration of 63％ and 0.6％ of the amount of dispersant for CWS total weight（dry basis coal）analysis according to the added amount of the dispersing agent on the viscosity and stability of the coal water slurry having the lowest apparent viscosity 588 mPa · s.

关 键 词：水煤浆 分散剂 缩聚物 腐植酸 

分 类 号：TQ314.1[化学工程—高聚物工业]