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_____________________________________________________________________________________________________ 1 Introduction Aluminum hydroxide, 90% of which is refined by Bayer process, has a wide application in many contemporary... Bayer liquor, hydrothermal treatment could be used to treat red mud by Bayer process. According to research results from Zhengzhou Research Institute of Chalco[6], a recycle ratio of 50%-70% of Al2O3......
, illite, pyrophyllite etc. They are decomposed by alkali solution and enter into the solution in the form of Na2SiO3 during digestion, which is the key process of Bayer process [1-3...]. Mining R&D, 2004, 10: 37-44. (in Chinese) [5] BI Shi-wen, YU Hai-yan, YANG Yi-hong, ZHAO Fu-hui, YIN Zhong-lin. Production of alumina using Bayer process[M]. Beijing: Metallurgical Industry Press......
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......
liquors are by-products of alumina and aluminium metal production. The Bayer process involves the extraction and precipitation of alumina from bauxite using hot sodium hydroxide. The cyclic and soluble...]. The analysis of anions and organic acids in Bayer liquor is vital for two main reasons, namely process monitoring (including quality control and optimisation of product yield and purity) and both toxicology......
particle size analyzer and scanning electron microscopy, the influences of temperature and initial molar ratio of Na2O to Al2O3 (αK) on agglomeration of fine seed in Bayer process were investigated... shapes are irregular. Key words: sodium aluminate; Bayer process; screen separation; agglomeration; initial molar ratio of Na2O to Al2O3  ......
catalytic oxidation were involved in the process, which accounted for 98.61%. Key words: Bayer red mud; flue gas desulfurization; wet catalytic oxidation; iron catalysis Cite this article as: TAO Lei... Bayer red mud accounts for a large amount because of the relative simple process, low lost and high-quality product [5–8]. However, the Bayer red mud contains high alkali and low activity, thus......
and increases the activation energy of dissolution, the diffusion process of which is the rate-controlling step. Key words: gibbsitic bauxite; dissolution; kinetics; ferrite; Bayer process 1 Introduction More than 90% of the alumina output is produced by the Bayer process, which is the major production technology in the alumina industry. Depending on the dissolution temperature, the Bayer process can......
A FTIR STUDY OF DISSOLUTION AND PRECIPITA-TION OF SILICA IN BAYER PROCESS龚文琪Wuhan University of Tecnology摘 要:<正> A quantitative Fourier transform... , the process of dissolution and precipitation of silica was found to occur in three stages. In the first stage, there was no precipitation of desilication product (DSP). All the silica dissolved from......
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... of Advanced Metallurgy, University of Science and Technology Beijing摘 要:Red mud is a bauxite residue generated during the process of alumina production......