岩矿测试2012，Vol.31Issue(2)：312-317,6.
烧结法赤泥的物质组成与颗粒特征研究
Study on Material Composition and Particles Characteristics of Red Mud from the Sintering Alumina Process
摘要
Abstract
Red mud can be derived from the processing of bauxite using different methods. The chemical composition of red mud varies greatly with respect to the types of bauxite ore and processing parameters. The characterization of red mud with sintering alumina process from Guizhou, China, was investigated using X-ray Fluorescence Spectrometry (XRF), Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Malvem Mastersizer 2000 laser scattering particle size distribution analyzer in this study. The results show that red mud consists of eight main chemical compositions of CaO, A12O3, SiO2, Fe2O3, TiO2, NajO, K2Oand MgO, and multiple trace elements. Calcium silicate, tricalcium aluminate, perovskite, calcite, amorphous mass and other phases such as iron-bearing minerals and clay minerals were identified in red mud by XRD. TEM analysis showed that mineral phases in Guizhou red mud used in this paper had different micro shapes; thin sheets and aggregation of small particles; regular shapes such as flake, column, and grain; aggregation of filamentous or trichoid shapes. The small size of red mud particles related to comprehensive utilization of red mud and was one of its distinctive characteristics or attributes revealed by a Mastersizer 2000 laser scattering particle size distribution analyzer. The purpose of this investigation is to establish the relationship between the properties of red mud from sintering alumina process and its usage, so as to provide necessary data and a scientific base for its comprehensive utilization.关键词
赤泥/烧结法/物质组成/颗粒特征Key words
red mud/ sintering alumina process/ materials composition/ particle characteristics分类
天文与地球科学引用本文复制引用
顾汉念,王宁,刘世荣,田元江..烧结法赤泥的物质组成与颗粒特征研究[J].岩矿测试,2012,31(2):312-317,6.基金项目
贵阳市科技计划项目([2008]筑科工合字第30号) （[2008]筑科工合字第30号）
贵州省科学技术基金(黔科合J字[2012]2329号) （黔科合J字[2012]2329号）
