测定甘油、苯及二碘甲烷与氧化铝生产中赤泥主要物相之间的接触角,采用Owens二液法估算各物相的表面自由能,分析了赤泥主要物相的表面性质与其沉降性能之间的关系,并讨论针铁矿在高压处理后沉降性能变差的原因.结果表明:甘油-苯和甘油-二碘甲烷测定数据估算的溶剂化趋势按水化石榴石、硅酸二钙、水合铝硅酸钠、钛酸钙、针铁矿、赤铁矿、石灰石的顺序递减,而其沉降性能与之相反,即溶剂化趋势越小,沉降性能越好.赤泥主要物相中,针铁矿高压处理后转变为赤铁矿,固相粒径变小,溶剂化趋势增加,从而导致其沉降性能恶化.
参考文献
| [1] | Akln Akinci;Recep Artir .Characterization of trace elements and radionuclides and their risk assessment in red mud[J].Materials Characterization,2008(4):417-421. |
| [2] | 刘万超,杨家宽,肖波.拜耳法赤泥中铁的提取及残渣制备建材[J].中国有色金属学报,2008(01):187-192. |
| [3] | LI Xiao-bin,XIAO Wei,LIU Wei,LIU Gui-hua,PENG Zhi-hong,ZHOU Qiu-sheng,QI Tian-gui.Recovery of alumina and ferric oxide from Bayer red mud rich in iron by reduction sintering[J].中国有色金属学报（英文版）,2009(05):1342-1347. |
| [4] | R. K. Paramguru;P. C. Rath;V. N. Misra .TRENDS IN RED MUD UTILIZATION - A REVIEW[J].Mineral Processing and Extractive Metallurgy Review,2005(1):1-29. |
| [5] | ZHANG Ying,ZHENG Shi-li,DU Hao,WANG Shao-na,PENG Ying,ZHANG Yi.Alumina recovery from spent Bayer liquor by methanol[J].中国有色金属学报（英文版）,2010(z1):165-168. |
| [6] | 陈锋,王连嵩,毕诗文,谢志辉,贾志军.一种带有苯环结构的氧肟酸类赤泥絮凝剂的合成及应用[J].中国有色金属学报,2007(03):498-503. |
| [7] | 胡少伟 .新型赤泥分离洗涤工艺研究及其产业化应用[D].中南大学,2005. |
| [8] | 杨重愚.氧化铝生产工艺学[M].北京:冶金工业出版社,1993:105-110. |
| [9] | Chvedov D.;Le T.;Ostap S. .Surface properties of red mud particles from potentiometric titration[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2001(1/3):131-141. |
| [10] | 高建阳,朱军,祝凤美,杨丛林.富铁三水铝土矿中铁矿物的反应特性[J].矿业工程,2008(04):39-41. |
| [11] | ZHAO Qing-jie,YANG Qiao-fang,CHEN Qi-yuan,YIN Zhou-lan,WU Zheng-ping,YIN Zhen-guo.Behavior of silicon-containing minerals during Bayer digestion[J].中国有色金属学报（英文版）,2010(z1):1-9. |
| [12] | 王晖,顾帼华,邱冠周.接触角法测量高分子材料的表面能[J].中南大学学报（自然科学版）,2006(05):942-947. |
| [13] | 范克雷维伦 D W;许元泽;赵得禄;吴大诚.聚合物的性质:性质的估算及其与化学结构的关系[M].北京:科学出版社,1981:121-129. |
| [14] | OWENS D K;WENDT R C .Estimation of the surface free energy of polymers[J].Journal of Applied Polymer Science,1969,13(08):1741-1747. |
| [15] | Luner PE.;Oh E. .Characterization of the surface free energy of cellulose ether films[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2001(1/3):31-48. |
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