Paper Infomation
Preparation of magnetic sorbent for oil separation by coal-derived diatomite
Full Text(PDF, 671KB)
Author: Shiyong SUN
Abstract: In order to realize high efficiency utilization of coal-derived diatomite as solid waste resources, the presented study using coal-derived diatomite of Yunnan Xianfeng as carrier for preparing magnetic sorbents to clean and treat crude oil from the polluted marine environments. The Co nanoparticles were prepared by chemical co-precipitation method. The magnetic sorbent was further prepared by mixing different ratios of Co nanoparticles and diatomite depending on application environment under magnetic stirring. Characterized by scanning electron microscopy (SEM), Ray diffraction analysis (XRD), and X - ray fluorescence analysis (XRF) and simultaneous thermal analysis (TG/DSC), the experimental results showed that the magnetic diatomite is an ideal material for crude oil cleaning. The optimized ratio of magnetic nanoparticles: diatomite to clean up oil pollution is 1:5 with removal efficiency of 91.6%. In this paper, the experimental study showed that a potential comprehensive utilization way of non-metallic mineral resources for preparing magnetic sorbent for reducing the influence of crude oil pollution to the environment.
Keywords: Diatomite；Magnetic sorbent；Crude oil cleaning；Tailing utilization
References:
[1] 郑水林, 孙志明, 胡志波, 张广心. 中国硅藻土资源及加工利用现状与发展趋势[J]. 地学前缘, 2014, 21(5): 274-280.
[2] 刘洁, 赵东风. 硅藻土的研究现状及进展[J]. 环境科学与管理, 2009, 34(5): 104-106.
[3] 任子杰, 高惠民, 柳溪. 硅藻土提纯及制备助滤剂研究进展[J]. 矿产综合利用, 2013, (5): 5-9.
[4] 孙仕勇, 付琪智, 宋绵新, 谭道永, 袁路, 张杰, 董发勤, 陈廷芳. 硅藻土-无定形碳-氧化铁三元复合体系降解三硝基甲苯的研究[J]. 岩石矿物学杂志, 2015, 34(6): 901-906.
[5] 张利珍, 吕子虎, 谭秀民, 张秀峰. 我国煤系共伴生矿物资源及开发利用现状[J]. 中国矿业, 2012, 21(11): 59-61.
[6] 孙仕勇, 文科, 杨波, 周青, 董发勤, 聂小琴, 刘立柱, 樊胜兰. 活性炭/硅藻土吸附剂的制备及性能研究[J]. 岩石矿物学杂志, 2013, 32(6): 941-946.