WANG Jie， SUN Sijia， DING Hao， HOU Xifeng
（School of Materials Science and Technology， China University of Geosciences Beijing， Beijing 100083， China）
Abstract：To separate calcium carbonate from suspension or other substances through getting calcium carbonate particles agglomerating in the water, the behavior of calcium carbonate particles modified by the sodium stearate in water medium and its mechanism were studied. The results show that the agglomeration of particles mainly determined by the induced surface hydrophobicity. Compared with the unmodified calcium carbonate, the modified calcium carbonate particles agglomerate to larger particles with certain strength in water medium. It's inferred that the agglomeration of modified calcium carbonate particles induces by the association of modifier carbon chain on the particles surface.
Keywords：hydrophobic agglomeration; calcium carbonate; surface modification
文章编号：1008-5548（2017）06-0064-07
DOI：10.13732/j.issn.1008-5548.2017.06.013
收稿日期：2017-04-23， 修回日期：2017-10-16，在线出版时间：2017-12-25。
基金项目：国家自然科学基金项目，编号：51474194.
第一作者简介：汪杰（1994—），男，博士研究生，研究方向为无机材料。E-mail ：wangjie16 @cugb.edu.cn。
通信作者简介：丁浩（1964—），男，博士，教授，博士生导师，研究方向为无机材料和矿物加工。E-mail ：dinghao@cugb.edu.cn。
