Wet-purification of a Sodium-based Bentonite

摘要：

　　Bentonite mainly consists of montmorillonite,but is always associated with other impure minerals.In order to increase the montmorillonite content in raw bentonite from Xinjiang,this paper adopts wet-purification process which integrates the scrubbing process with streamlined centrifugalization.The optimum experiment condition is solid - liquid ratio (w:v) 1:30,macerating time 20h,scrubbing time 10min,centrifugation time 13min,centrifugation velocity 1260r/min,ZHL dosage 0.4% and ZHC dosage 0.4%.According to the amount of methylene blue absorption raising from 64.5mmol/100g to 110mmol/100g and X-ray diffraction analysis,the montmorillonite content raises from 48% to 82%.

关键词： Bentonite Wet-purification Centrifugal classifying Dispersing agent

作者: Shuilin Zheng Yangyang Huai Zhenwei Li Haoran Cui Zhiming Sun

作者单位: School of Chemical and Environmental Engineering, China University of Mining and Technology,Beijing, 100083, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 692-696

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）