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Trans. Nonferrous Met. Soc. China 27(2017) 2715-2726 Transformation of hematite in diasporic bauxite during reductive Bayer digestion and recovery of iron Xiao-bin LI, Yi-lin WANG, Qiu-sheng ZHOU...: The reductive Bayer digestion by using iron powder as reductant is proposed to convert hematite to magnetite and further to dissociate iron minerals from sodium aluminosilicate hydrate (desilication......
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BAYER LIQUORS IN ALUMINA REFINERIES STUDIED BY FOURIER TRANSFORM INFRARED SPECTROSCOPY龚文琪摘 要:<正>Abstract:The assignments of the absorption peaks in the Fouriertransform infrared (FTIR)spectra of the Bayer liquors were established inthis study,which provided the basis for the study of Bayer liquors byFTIR techniques.The FTIR study of the Bayer......
Calcium Hydroxytitanate in Bayer Digestion ProcessGu Songqing Zhengzhou Light Metal Research Institute Cao Rongjiang General Research Institute for Non-ferrous Metals,Beijing Chen Xinmin Central South University of Technology,Changsha摘 要:<正> Calcium hydroxytitanate formed in Bayer digestion process of chinese diasporic bauxite......
during Bayer digestion at high temperatureLI Xiao-bin, LI Chong-yang, QI Tian-gui, ZHOU Qiu-sheng, LIU Gui-hua, PENG Zhi-hong(National Engineering Laboratory for Efficient Utilization of Refractory... percentage reaches above 90% after reaction of 1 h under the Bayer process. The iron-hydroxyl complexes are generated firstly by the reaction of OH- of sodium aluminate solution and Fe2+ of the pyrite surface......
liquor LIU Ji-bo, CHEN Qi-yuan, ZHANG Mu-qun, YIN Zhou-lan, ZHANG Ping-min (1. Zhengzhou Light Metal Research Institute China Aluminium Corporation, Zhengzhou 450041, China; 2. College of Chemistry... aluminate liquor, the ultrasonic induced hydroxyl free radicals was detected by electron spin resonance(ESR) spectroscopy using DMPO (5, 5-dimethyl-1-pyrroline-N-oxide) as a spin trap. The relationship......
Effects of new flocculants on settlement of Bayer red mud XU Fang, HU Hui-ping, CHEN Qi-yuan (School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China) Abstract: A series of experiments on Bayer red mud generated from Chinese diaspore bauxite were performed using experimentally-synthesized new flocculants ASAM (obtained from acryamide, sodium acrylate and β......
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liquor by activated seed ZENG Ji-shu, YIN Zhou-lan, CHEN Qi-yuan (School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China) Abstract: The aluminium hydroxide seed was activated by boiling distilled water. The effects of activated seed on decomposition ratio of seeded sodium aluminate liquor and particle size distribution were investigated. The experiments were......
Electron probe microanalysis for revealing occurrence mode of scandium in Bayer red mudNa Zhang1,2,Hong-Xu Li1,2,Hui-Jing Cheng3,Xiao-Ming Liu1,21. School of Metallurgical and Ecological Engineering.... In this research, the occurrence mode of scandium in the Bayer red mud was investigated mainly by electron probe microanalysis(EPMA). The Bayer red mud used in this work is composed of 21.47 wt%hematite......