ZHANG Lingbin， HU Zhibo， SUN Zhiming， ZHENG Shuilin， LIU Shushu， CHEN Yang
（School of Chemical and Environmental Engineering， China University of Mining and Technology （Beijing）， Beijing 100083， China）
Abstract： To analyze the diatom mineral content of each grain size from Niger diatomite, two ways of wet screening and screening after scrape-washing were respectively used to classify the Niger diatomite. The classification effect of diatom mineral of each grain size was characterized by SEM. The diatom mineral content of each grain size was tested by the method of water-heated alkaline reaction. The results show that the wet screening cannot separate diatom minerals from quartz and clay effectively. Screening after scrape-washing is an effective way to make more than 76% of diatom minerals concentrate in grain size less than 75 μm.
Keywords: Niger diatomite; wet screening; screening after scrape-washing; diatom mineral
文章编号：1008-5548（2015）05-0072-04
DOI：10.13732/j.issn.1008-5548.2015.05.016
收稿日期：2014-10-20，修回日期：2014-11-03，在线出版时间：2015-10-21。
第一作者简介： 张凌斌（1991—）， 男， 硕士研究生， 研究方向为非金属矿物材料。 E-mail：zhlb_1991@163.com。
通信作者简介： 郑水林（1956—）， 男， 教授，博士生导师，研究方向为非金属矿深加工与非金 属矿物材料、 粉体加工技术。 E-mail：shuilinzh@sina.com。
