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Process intensification of fine coal separation using two-stage flotation columnGUI Xia-hui(桂夏辉)1, LIU Jiong-tian(刘炯天)2, CAO Yi-jun(曹亦俊)2, CHENG Gan(程敢)3, ZHANG Hai-jun(张海军)2, WANG Yong-tian(王永田)2(1... with dimensions of 2 000 mm×1 000 mm×4 000 mm was designed to enhance the column flotation process. The energy input was modified by adjusting the flow rate and the head of circulating pump. The flotation......
; Abstract: A purification process was developed to remove impurity element boron from the metallurgical grade silicon by the electric arc... or hydrates[14]. In this work, the oxidizing refining method of metallurgical grade silicon was used for the boron removal and the process and feasibility were presented. Based upon the thermodynamic......
or of the industrial seed itself. The result presented is favorable to developing an intensified gibbsite precipitation process for commercial alumina manufacture. Key words: gibbsite; seeded precipitation; sodium aluminate solution; active seed; intensification Cite this article as: LI Xiao-bin, YE Pu-hong, ZHOU Qiu-sheng, LIU Jing-hui, PENG Zhi-hong, LIU Gui-hua, QI Tian-gui. Intensifying gibbsite......
was mainly oxidized into the slag phase in the form of zinc oxide. Key words: jamesonite concentrate; metallurgical process intensification; slag type; pyrometallurgy; oxygen-enriched direct smelting 1... concentrate Zhong-tang ZHANG, Xi DAI School of Metallurgical and Environment, Central South University, Changsha 410083, China Received 20 April 2019; accepted 4 December 2019 Abstract: The oxygen-enriched......
method for production of solar grade silicon(SoG-Si) at low cost from metallurgical grade silicon (MG-Si) via vacuum metallurgical technique was proposed, which is a promising process to feedstock solar... Removal of iron and aluminum impurities from metallurgical grade-silicon with hydrometallurgical route YU Zhan-liang(于站良)1, 2, MA Wen-hui(马文会)1, 2, DAI Yong-nian(戴永年)1,2, YANG Bin(杨 斌)1, 2......
: The kinetics on vacuum refining process of metallurgical grade silicon was studied using maximum evaporation rate, critical pressure and mean free path of phosphorus in the metallurgical grade silicon... to study the kinetics in the vacuum distillation process of metallurgical grade silicon. It has proved that the evaporation rate of element is affected mainly by temperature and pressure. This study......
Low-temperature purification process of metallurgical silicon ZHAO Li-xin1, 2, WANG Zhi1, GUO Zhan-cheng1, 3, LI Cheng-yi4 1. National Engineering Laboratory for Hydrometallurgical Cleaner..., Beijing 100083, China Received 22 October 2010; accepted 24 November 2010 Abstract: The removal of B and P consumes most of heat energy in Si metallurgical purification process for solar-grade Si......
. The thermodynamics on vacuum refining process of the metallurgical grade silicon was studied via separation coefficient of impurity phosphorus in the metallurgical grade silicon and vapor-liquid... Vacuum distillation refining of metallurgical grade silicon (Ⅰ)--Thermodynamics on removal of phosphorus from metallurgical grade silicon WEI Kui-xian(魏奎先)1, 2, MA Wen-hui(马文会)1, 2, DAI Yong-nian......
, China) Abstract: The intensification process consisting of sulfuric acid roasting – water leaching was conducted to extract U, Mo from U-Mo ore, and the single factor experiments were performed... acid roasting; water leaching; leaching rate; intensification process Foundation item: Project((2014)-111) supported by the Core Competency Enhancement Program of China National Nuclear Corporation......