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| 1 | Basic properties of sintering dust from iron and steel plant and potassium recovery显示文摘With the production of crude steel,China produces several million tons of sintering dusts which contain a great deal of valuable metals such as,K,Na,Zn,Pb.If discharged directly without adequate treatment,these elements can lead to adverse effects on the environment.Therefore,it is very necessary to determine how to separate these elements from the dust before discharge.Several physical and chemical detection methods were used to study the basic properties of sintering dust.At the same time,preliminary experiments on the recovery of the potassium resources from the sintering dust were carried out.The mean particle size of the electrostatic precipitator(ESP) dust determined by a laser granulometer was 41.468 μm.Multi-point BET and single-point BET analysis showed that the surface area of the ESP dust was 2.697 m2 /g.XRD measurements detected the following phases in the ESP dust:Fe2O3,Fe3O4,KCl and NaCl,and Fe2O3,Fe3O4 and SiO2 in the water-washed dust.SEM-EDS results proved that in the ESP dust,K mostly existed in the form of KCl particles without being coated.Leaching experiments showed that the KCl in the ESP dust could be separated and recovered by water leaching and fractional crystallization.Through the recovery experiments,the yield of K-Na vaporized crystalline salt was 18.56%,in which the mass fractions of KCl,NaCl,CaSO4 and K2SO4 were about 61.03%,13.58%,14.03% and 9.97%,respectively.This process is technically viable and considerable in economic benefit.There was almost no secondary pollution produced in the whole recovery process. | Guang Zhan Zhancheng Guo | 2013 | Journal of Environmental Sciences2013，25，6： | 23 |
| 2 | NUMERICAL SIMULATION FOR A PROCESS ANALYSIS OF A COKE OVEN显示文摘A computational fluid dynamic model is established for a coking process analysis of a coke oven using PHOENICS CFD package. The model simultaneously calculates the transient composition, temperatures of the gas and the solid phases, velocity of the gas phase and porosity and density of the semi-coke phase. Numerical simulation is illustrated in predicting the evolution of volatile gases, gas flow paths, profiles of density, porosity of the coke oven charge,profiles of temperatures of the coke oven gas and the semi-coke bed. On the basis of above modeling, the flow of coke oven gas (COG) blown from the bottom of the coke oven into the porous semi-coke bed is simulated to reveal whether or not and when the blown COG can uniformly flow through the porous semi-coke bed for the purpose of desulfurizing the semi-coke by recycling the COG. The simulation results show that the blown COG can uniformly flow through the semi-coke bed only after the temperature at the center of the semi-coke bed has risen to above 900 ℃. | Zhancheng Guo Huiqing Tang | 2005 | China Particuology2005，3，6： | 7 |
| 3 | Thermodynamic analysis on the direct preparation of metallic vanadium from NaVO_3 by molten salt electrolysis显示文摘A novel and environmentally friendly route to directly prepare metallic vanadium from Na VO_3 by molten salt electrolysis is proposed.The feasibility about the direct electro-reduction of NaVO_3 to metallic vanadium is analyzed based on the thermodynamic calculations and experimental veri fications.The theoretical decomposition voltage of NaVO_3 to metallic vanadium is only 0.47 Vat 800°C and much lower than that of the alkali and alkali earth metal chloride salts.The value is slightly higher than that of low-valence vanadium oxides such as V_2O_3,V_3O_5 and VO.However,the low-valence vanadium oxides can be further electro-reduced to metallic vanadium thermodynamically.The thermodynamic analysis is veri fied by the experimental results.The direct preparation of metallic vanadium from NaVO_3 by molten salt electrolysis is feasible. | Wei Weng Mingyong Wang Xuzhong Gong Zhi Wang Zhancheng Guo | 2016 | Chinese Journal of Chemical Engineering2016，24，5： | 4 |
| 4 | Preparation of steel slag porous sound-absorbing material using coal powder as pore former显示文摘The aim of the study was to prepare a porous sound-absorbing material using steel slag and fly ash as the main raw material, with coal powder and sodium silicate used as a pore former and binder respectively. The influence of the experimental conditions such as the ratio of fly ash, sintering temperature, sintering time, and porosity regulation on the performance of the porous sound-absorbing material was investigated. The results showed that the specimens prepared by this method had high sound absorption performance and good mechanical properties, and the noise reduction coefficient and compressive strength could reach 0.50 and 6.5 MPa, respectively. The compressive strength increased when the dosage of fly ash and sintering temperature were raised. The noise reduction coefficient decreased with increasing ratio of fly ash and reducing pore former, and first increased and then decreased with the increase of sintering temperature and time. The optimum preparation conditions for the porous sound-absorbing material were a proportion of fly ash of 50%(wt.%), percentage of coal powder of 30%(wt.%), sintering temperature of 1130°C,and sintering time of 6.0 hr, which were determined by analyzing the properties of the sound-absorbing material. | Peng Sun Zhancheng Guo | 2015 | Journal of Environmental Sciences2015，27，10： | 3 |
| 5 | Enhanced electrodeposition and separation of metallic Cr from soluble K2CrO4 on a liquid Zn cathode显示文摘Carbon contamination and the formation of low-valence oxides limit the preparation of refractory metals by molten salt electrolysis.In this paper,a liquid Zn cathode is adopted for the electrochemical reduction of soluble K2CrO4 to metallic Cr in CaCl2-KCl molten salt.It is found that CrO4^2-can be directly electrochemically reduced to Cr via a six-electron-transfer step and low-valence Cr oxides is hardly produced.The reduction rate is obviously increased from 16.7 mgCrh^-1cm^-2 on the solid Mo cathode to58.7 mgCrh-1cm-2on liquid Zn cathode.The electrodeposited Cr is distributed in liquid Zn cathode.Carbon contamination is effectively avoided due to the negligible solubility of carbon in the liquid Zn cathode.Furthermore,Cr can be effectively separated and enriched to the bottom of liquid Zn under supergravity field,realizing the efficient acquisition of metallic Cr and recycling of liquid Zn.The method herein provides a promising route for the preparation of refractory metals with high-purity by molten salt electrolysis. | Wei Weng Zhi Wang Zhancheng Guo Shuqiang Jiao Mingyong Wang | 2020 | Journal of Energy Chemistry2020，29，1： | 2 |
| 6 | Desulfurization ability of metallurgical dusts from blast furnace ironmaking process显示文摘 | YE Shufeng XIE Yusheng GUO Zhancheng | 2001 | Journal of chemical en gineering of Japan2001，34，9： | 1 |
| 7 | Catalys- tic oxidation NO on activated carbon显示文摘 | Guo Zhancheng Xie Yusheng Hong Ikpyo | 2001 | Energy Conversion Manag2001，42，： | 1 |
| 8 | Reactivity of pulverized coals during combustion catalyzed by CeO2 and Fe203 显示文摘 | Gong Xuzhong Guo Zhancheng Wang Zhi | 2010 | Combustion and Flame2010，157，： | 1 |
| 9 | Production of Syn- thesis Gas by Co-Gasifying Coke and Natural Gas in a Fixed Bed Reactor显示文摘 | Xueping Song Zhancheng Guo | 2007 | Energy2007，32，： | 1 |
| 10 | Reactivity of Pulverized Coals During Combustion Catalyzed by CeOz and FezO3 显示文摘 | Gong Xuzhong Guo Zhancheng Wang Zhi | 2010 | Combustion and Flame2010，157，2： | 1 |
| 11 | Reduction mechanism of natural ilmen- ite with graphite 显示文摘 | Wang Yuming Yuan Zhangfu Guo Zhancheng Tan Qiangqiang Li Zhaoyi Jiang Weizhong | 2008 | Transactions of Nonferrous Metals Society of China2008，18，： | 1 |
| 12 | Understanding of the intensified effect of super gravity on hydrogen evolution reaction显示文摘 | Wang Mingyong Wang Zhi Guo Zhancheng | 2009 | International Journal of Hydrogenenergy2009，34，13： | 1 |
| 13 | Structure and mechanical properties of iron foil electrodepositer in super gravity field显示文摘 | Liu Ting Guo Zhancheng Wang Zhi | 2010 | Surface & Coatings Technology2010，204，20： | 1 |
| 14 | Desulfurization of coke by recycling COG in coking process 显示文摘 | Guo Zhancheng Tang Huiqing Liu Junli | 2005 | Fuel2005，，84： | 1 |
| 15 | Swelling and shrinkage behavior of raw and processed coals during pyrolysis 显示文摘 | Zhixin Fu Zhancheng Guo Zhang fu Yuan Zhi Wang | 2007 | Fuel2007，，86： | 1 |
| 16 | Structure and mechanical properties of iron foil electrodepositer in super gravity field显示文摘 | Liu Ting Guo Zhancheng Wang Zhi | 2010 | Surface & Coatings Technology2010，204，20： | 1 |
| 17 | Production of synthesis gas by co- gasifying coke and natural gas in a fixed bed reactor显示文摘 | Song Xueping Guo Zhancheng | 2007 | Energy2007，32，： | 1 |
| 18 | Removal of Low-Content Impurities from Al By Super-Gravity显示文摘 | Lixin Zhao Zhancheng Guo Zhi Wang Mingyong Wang | 2010 | Metallurgical and Materials Transactions B2010，，3： | 1 |
| 19 | Compre- hensive mathematical model of full oxygen blast furnace and its solution 显示文摘 | Meng Jiale Guo Zhancheng Tang Huiqing | 2012 | Advanced materials research2012，567，： | 1 |
| 20 | Discovery of potassium chloride in the sintering dust by chemical and physical characterization显示文摘 | Cui Peng Zhancheng Guo Fuli Zhang | | 0，，10： | 1 |
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