王艳红;丁明山;任嗣利;

• 1:中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室

• 2:中国科学院大学化学与化工学院

摘要(Abstract)：

以玻璃作为基底,通过控制玻璃表面的润湿性,考察水溶液中沥青涂层在其表面上的脱附特征.结果表明,随着固体表面疏水性的增强,沥青脱附率大大降低,甚至不发生脱附.沥青涂层在固体表面上的脱附并不是层状脱落,而是从某些区域开始,收缩变薄,直至局部基底裸露,在这个过程中气泡在沥青涂层表面的附着对沥青的脱附起到辅助作用.原子力显微镜测量沥青与玻璃间的作用力表明,固体表面疏水性的增强导致沥青和固体之间产生强的吸引力和高黏着,因而沥青难以在其上脱附.固体表面的润湿性对油砂的水基分离效率具有决定性作用.因此,在评估一种油砂矿能否应用水基提取技术进行分离提取时,应该关注油砂中沙粒组分表面的润湿性.

关键词(KeyWords)：油砂;沥青;脱附;表面湿润性;原子力显微镜

Abstract:

Keywords:

基金项目(Foundation):中国科学院“百人计划”资助项目(20100510)

作者(Author):王艳红;丁明山;任嗣利;

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