Article
Engineering, Environmental
Jie Cheng, Hong-Yi Li, Dong Hai, Xin-Mian Chen, Jiang Diao, Bing Xie
Summary: In order to minimize the toxicity of vanadium extraction tailings, the vanadium extraction efficiency should be as high as possible. This study explores the kinetics of a novel magnesiation roasting technique for vanadium slag, revealing the microscopic mechanism and proposing macroscopic kinetic models. The intensified roasting kinetics achieved a vanadium extraction efficiency of 96.65%, providing guidelines for the industrial application of this technique.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yun Guo, Hong-yi Li, Yi-heng Yuan, Jie Huang, Jiang Diao, Gang Li, Bing Xie
Summary: By using microemulsion as the leaching agent, the fusion of leaching and purification processes was realized in one step to leach vanadates from sodium-roasted vanadium slag. The proposed method achieved a high vanadium leaching efficiency of 79.57%, reducing production costs and environmental pollution, and offering a new way to achieve green recovery of valuable metals from solid resources.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2021)
Article
Crystallography
Changqing Li, Haichao Zhang, Ma Tao, Xufeng Wang, Hang Li, Yungang Li, Ying Tian
Summary: Calcium vanadate (CaV2O6), a new product obtained from vanadium slag, was successfully synthesized by sodium roasting-water leaching and calcium precipitation. The study systematically investigated the separation behavior of vanadium and silicon during the process, and achieved a purity of 95.69% for the precipitated CaV2O6 under specific conditions.
Article
Engineering, Environmental
Jing Wen, Tangxia Yu, Tao Jiang, Hongyan Sun, Ming Li, Yi Peng
Summary: This study investigated the effect of Cr2O3 content in vanadium slag on its phase composition and micro morphology. The results showed that increasing Cr2O3 content led to a decrease in the grain size of the spinel phase and a homogenization of the distribution of Cr, V, and Ti. Acid leaching experiments demonstrated that after calcification roasting, vanadium and chromium existed in the form of vanadate and (Fe0.6Cr0.4)2O3, achieving complete separation.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Green & Sustainable Science & Technology
Jing Wen, Tao Jiang, Tangxia Yu, Bojian Chen, Lin Li
Summary: Manganese in vanadium slag plays a crucial role and has an impact on the phase of vanadium slag and the synergistic effects during the roasting process. By altering the MnO content, the lattice structure of spinel and olivine in vanadium slag can be modified, leading to different leaching rates of vanadium.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Guoquan Zhang, Tao Hu, Wenjie Liao, Xiaodong Ma
Summary: The alternative process of extracting vanadium (V) from converter vanadium slag using ammonium sulfate roasting can reduce energy consumption and environmental pollution, with the appearance of sulfate salt at 350 degrees Celsius. Controlling roasting temperature, time, and amount of ammonia salt can achieve efficient extraction of V.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Junyi Xiang, Luwei Bai, Xi Lu, Mingshuai Luo, Qingyun Huang, Shengqin Zhang, Xuewei Lv
Summary: This study aims to enhance vanadium extraction from high chromium-bearing vanadium slag through mechanical activation. The results demonstrate that mechanical activation can decrease particle size, increase surface area, and improve the activity and leaching efficiency of vanadium.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Yarui An, Baozhong Ma, Xiang Li, Yongqiang Chen, Chengyan Wang, Baohua Wang, Minglei Gao, Guosheng Feng
Summary: This paper reviews the sources and characteristics of vanadium slag, and comprehensively compares and discusses various treatment methods. The roasting assisted leaching process is found to be the most effective way to extract vanadium from vanadium slag.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Review
Materials Science, Multidisciplinary
Jae-chun Lee, Kurniawan, Eun-young Kim, Kyeong Woo Chung, Rina Kim, Ho-Seok Jeon
Summary: This article provides a comprehensive review on the metallurgical treatments of vanadium bearing slags, highlighting the importance of developing sustainable metallurgical processes. The research discusses traditional and modern methods for treating vanadium bearing slags, as well as promising technologies for future focus. Recommendations are made for separating vanadium from interfering elements in leach solutions and advancing extractive metallurgy techniques.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Chemical
Zhenghao Wang, Liang Chen, Zhifeng Qin, Hongyang Yang, Xiaodong Guo, Bin Liang, Dongmei Luo
Summary: A novel strategy of speedy acidification of static sodium vanadate (NaVO3) solution and vanadium slag leaching solution for vanadium hydrolysis was proposed in this study to achieve high-efficiency hydrolysis. The results showed that NaVO3 solution could be rapidly nucleated within 10 s and completely hydrolyzed in 30 min at a higher pH value of 2.4 and a lower temperature of 80°C, with a precipitation efficiency as high as 99%. Compared to the conventional hydrolysis method, the new method could shorten the reaction time, decrease acid dosage, and save energy.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Review
Green & Sustainable Science & Technology
Foquan Gu, Yuanbo Zhang, Zijian Su, Yikang Tu, Shuo Liu, Tao Jiang
Summary: This study reviews the technologies for recovering chromium from chromium-containing SSS slags, including analysis of global chromium resources and consumption, physicochemical characteristics of SSS slags, discussion on various recovery methods, technical challenges, and possible measures to enhance chromium recovery.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Chemical
Zhe Bai, Yuexin Han, Jianping Jin, Yongsheng Sun, Zhenya Zhou
Summary: A novel two-step fluidized roasting process was explored to enhance vanadium extraction from black shale. The optimal conditions for the two roasting steps were determined. The process significantly increased the vanadium leaching rate and removed carbon, demonstrating its potential for efficient and green vanadium extraction.
Article
Metallurgy & Metallurgical Engineering
Jun-yi Xiang, Ming-shuai Luo, Xi Lu, Lu-wei Bai, Zhong-peng Zhu, Qing-yun Huang, Sheng-qin Zhang, Kun-peng Guo, Xue-wei Lv
Summary: A composite additive roasting and acid leaching process was applied to reduce the vanadium content in vanadium extraction tailings from vanadium-bearing converter slag. The effect of additive with different MgO/(CaO + MgO) ratios on the roasting and leaching behaviors of vanadium slag was investigated, and the optimal process conditions were determined. The results showed that the addition of MgO could transform the vanadate species in the slag, but excessive MgO substitution for CaO reduced the leaching efficiency of vanadium.
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Qing Guo, Xiao-Yan Liu, Si-Cheng Liu, Yi-Ning Li, Yi Yin, Peng Zhang
Summary: In this study, the vibrational phonon density of ammonium metavanadate was analyzed using first-principles density functional theory, and its infrared absorption and Raman scattering spectra were simulated. It was found that the V-related vibration had a strong infrared absorption peak at 711 cm(-1), while other significant peaks above 2800 cm(-1) were from N-H stretching vibrations. Therefore, it was proposed that providing high-power terahertz laser radiation at 711 cm(-1) may facilitate the separation of V from its compounds through phonon-photon resonance absorption. With the continuous progress of terahertz laser technology, this technique is expected to be developed in the future, and it may offer new technological possibilities.
Article
Engineering, Environmental
Jiancheng Yu, Baozhong Ma, Shuhe Zhao, Zhichao Yao, Chengyan Wang, Baohua Wang, Minglei Gao, Guosheng Feng
Summary: A clean process for vanadium extraction from water-cooled vanadium converter slag (VCS) is proposed, which includes sieving, salt-free roasting, and sulfuric acid leaching. Mechanistic analysis shows that the roasting temperature affects the oxidation process of vanadium. Systematic leaching experiments demonstrate high leaching yields for vanadium, calcium, manganese, and magnesium, while the leaching residue can be used as raw material for iron production.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Correction
Chemistry, Multidisciplinary
Guang Wang, Min-Min Lin, Jiang Diao, Hong-Yi Li, Bing Xie, Gang Li
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Metallurgy & Metallurgical Engineering
Jiang Diao, Wenfeng Gu, Liang Liu, Wenfeng Tan, Hongyi Li, Bing Xie
IRONMAKING & STEELMAKING
(2020)
Article
Chemistry, Physical
Hong-Yi Li, Jun-Kai Feng, Liao Xiang, Jie Huang, Bing Xie
JOURNAL OF POWER SOURCES
(2020)
Article
Engineering, Chemical
Yun Guo, Hong-Yi Li, Jie Huang, Shuo Shen, Cheng-Jie Wang, Zheng-Yang Wu, Bing Xie
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Green & Sustainable Science & Technology
Hong-Yi Li, Cheng-Jie Wang, Yi-Heng Yuan, Yun Guo, Jiang Diao, Bing Xie
JOURNAL OF CLEANER PRODUCTION
(2020)
Article
Materials Science, Multidisciplinary
Jiang Diao, Liang Liu, Jing Lei, Wen-Feng Tan, Hong-Yi Li, Bing Xie
Summary: This study utilized vanadium slag with high MgO content as raw material and conducted high-temperature oxidation experiments, finding that trivalent vanadium in the slag can be partially transformed into pentavalent vanadium at high temperatures. Adjusting the oxygen blowing time significantly increased the leaching rate of roasted vanadium slag with high MgO content.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2021)
Article
Engineering, Environmental
Yun Guo, Hong-Yi Li, Shuo Shen, Jie Cheng, Jiang Diao, Bing Xie
Summary: This study proposes an effective process to recover various resources from chromium sludge separately, including silicon, vanadium, iron, and chromium, reducing resource wastage and environmental pollution.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Chemical
Yun Guo, Hong-Yi Li, Jie Cheng, Shuo Shen, Jiang Diao, Bing Xie
Summary: This study proposes an effective method to separately recover the major elements V, Cr, and Si from V-Cr-bearing reducing slag (VCBRS). Through meticulous extraction methods, valuable elements are efficiently recovered, addressing environmental pollution issues and achieving comprehensive utilization of the waste.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jie Cheng, Cheng-Jie Wang, Shuo Shen, Jiang Diao, Bing Xie, Hong-Yi Li
Summary: In this study, three common magnesium vanadates were synthesized and their solubilities in water and acidic solution were systematically investigated. It was found that magnesium vanadates are more soluble in acidic solution than in water, with magnesium metavanadate showing higher solubility than orthovanadate and pyrovanadate. This work provides fundamental data for understanding the vanadium extraction mechanism and performance control of magnesium vanadate materials.
Article
Chemistry, Multidisciplinary
Xiu-Fen Ma, Hong-Yi Li, Xiqin Zhu, Weiwei Ren, Xie Zhang, Jiang Diao, Bing Xie, Guangsheng Huang, Jingfeng Wang, Fusheng Pan
Summary: A layer-interweaving mechanism is reported for a novel lamellar cathode material to enhance magnesium ion diffusion and reduce insertion strain. The cathode exhibits high capacity and excellent cyclability, providing a new approach to address the kinetic and strain issues in high-performance RMBs.
Review
Physics, Applied
Xie Zhang, Jian Zhang, Hongcai Wang, Jutta Rogal, Hong-Yi Li, Su-Huai Wei, Tilmann Hickel
Summary: Phase transitions are common in condensed matter and understanding their thermodynamics and kinetics is crucial for materials design. Previous studies focused on pristine bulk phases, ignoring the impact of defects. Recent advances have led to increased interest in modeling and characterizing the influence of defects on phase transitions. This review discusses the progress in understanding defect-characterized phase transitions and outlines future challenges and research directions.
APPLIED PHYSICS REVIEWS
(2022)
Article
Engineering, Environmental
Jie Cheng, Hong-Yi Li, Dong Hai, Xin-Mian Chen, Jiang Diao, Bing Xie
Summary: In order to minimize the toxicity of vanadium extraction tailings, the vanadium extraction efficiency should be as high as possible. This study explores the kinetics of a novel magnesiation roasting technique for vanadium slag, revealing the microscopic mechanism and proposing macroscopic kinetic models. The intensified roasting kinetics achieved a vanadium extraction efficiency of 96.65%, providing guidelines for the industrial application of this technique.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
Liang Liu, Jiang Diao, Yi-Yu Qiu, Hong-Yi Li, Bing Xie
Summary: By adding MgO and blowing oxygen into the molten V-slag, the residual heat of V-slag can be effectively utilized to increase the extraction efficiency of vanadium.
CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS 2021
(2021)
Proceedings Paper
Metallurgy & Metallurgical Engineering
Jie Cheng, Hong-Yi Li, Shuo Shen, Jiang Diao, Bing Xie
Summary: The high-chromium vanadium slag is treated by magnesium roasting-acid leaching to obtain Cr-containing tailings, which are valuable resources. Sodium carbonate as annexing agent mixed tailings for roasting, resulting in a maximum leaching rate of Cr of 92.49% under optimal conditions.
RARE METAL TECHNOLOGY 2021
(2021)
Article
Materials Science, Multidisciplinary
Jiang Diao, Yi-Yu Qiu, Jing Lei, Quan Zhang, Wen-Feng Tan, Hong-Yi Li, Bing Xie
Summary: The study investigated the saturated solubility of MgO in converter vanadium slag and found that it mainly exists in MgV2O4 and MgSiO3. The solubility of MgO in the slag system is influenced by factors such as V2O3 content, FeO/SiO2 ratio, temperature, TiO2, Al2O3, and MnO content. The results showed an increase in solubility with higher temperatures and TiO2/Al2O3 content, and a decrease with higher MnO content.
Article
Engineering, Chemical
Ri Zhang, Shasha Zhang, Mengyan Ding
Summary: A thin liquid film method is proposed to evaluate sand erosion in annular flow. This method considers the direct interaction between the liquid film and gas core, as well as the entrainment and deposition of droplets. The erosion rate is calculated by considering the effects of liquid entrainment and particle velocity decay. The method is fully verified by comparing with experimental data.
Article
Engineering, Chemical
Yu Suo, Xianheng Su, Wenyuan He, Xiaofei Fu, Zhejun Pan
Summary: This research investigates the mechanical properties of sandstone-shale composite through orthogonal experimental method and discrete element simulation. The results show that different lithologies and thickness ratios can affect the strength and fracture mode of the composite rock samples.
Article
Engineering, Chemical
Maurizio Troiano, Andrea El Hassanin, Roberto Solimene, Alessia Teresa Silvestri, Fabrizio Scala, Antonino Squillace, Piero Salatino
Summary: This study investigates the potential of Fluidized Bed Finishing (FBF) for square flat AlSi10Mg specimens manufactured via Laser-Powder Bed Fusion (L-PBF) additive manufacturing technology. The results show that good finishing can be achieved using rotation-assisted tests, with a maximum reduction of surface roughness by 67%. Steel particles are found to be the most effective bed material.
Review
Engineering, Chemical
Ningbo Song, Wanzhong Yin, Jin Yao
Summary: Seawater's dissolved salts and minerals have various effects on the flotation process, including influencing the characteristics and behavior of flotation factors, as well as affecting the surface of sulfide minerals. In most cases, seawater has adverse effects on the flotation of sulfide minerals, but these effects can be mitigated by adjusting the reagents.
Article
Engineering, Chemical
Kaiqiao Wu, Shuxian Jiang, Victor Francia, Marc-Olivier Coppens
Summary: In rectangular and cylindrical annular fluidized beds, pulsating gas flow can create regular bubble patterns, overcoming challenges seen in conventional units. This study provides new opportunities for modularization of fluidized bed operations.
Article
Engineering, Chemical
Shuo Li, Huili Zhang, Jan Baeyens, Miao Yang, Zehao Li, Yimin Deng
Summary: The paper assesses the behavior of cohesive Geldart C-type particles when fluidized by air with the aid of vibration. It determines that mechanical vibration is a simple and effective method to improve the fluidity of cohesive particles during fluidization.
Article
Engineering, Chemical
Zhenfei Feng, Qingyuan Zhang, Shanpan Liang, Zhenzhou Li, Fangwen Guo, Jinxin Zhang, Ding Yuan
Summary: A new micro/mini-channel heat sink (MCHS) with a combined structure of longitudinal and transverse vortex generators is designed, using Al2O3 nanofluid as the working medium. The study explores the effects of transverse vortex generator shape and longitudinal vortex generator angle on the hydraulic and thermal characteristics, comprehensive performance, entropy generation, and exergy efficiency. The results show that the triangular transverse vortex generator improves the comprehensive performance and exergy efficiency. Combined with the longitudinal vortex generator, the MCHS achieves the best comprehensive performance, entropy generation, and exergy efficiency when the Reynolds number is 742.
Article
Engineering, Chemical
Kostas Giannis, Christoph Thon, Guoqing Yang, Arno Kwade, Carsten Schilde
Summary: This study presents a 3D convolutional neural network (3D-CNN) methodology for generating realistic 3D models of particles. The method trains on 2D projections of particle images to predict their 3D shapes, and evaluates the accuracy of the predictions using Fourier shape descriptors (FSDs). This methodology has wide applications in particle shape analysis.
Article
Engineering, Chemical
Zheng-qing Zhou, Lu-jia Chai, Yu-long Zhang, Ya-bin Wang, Ze-chen Du, Tian-yi Wang, Yu-zhe Liu
Summary: The dynamic oxidation and shell-breaking processes of aluminum nanoparticles (ANPs) during heating were studied using in situ transmission electron microscopy. The results revealed that the changes in shell thickness can be divided into three stages, and the active aluminum content of ANP decreased before shell-breaking.
Article
Engineering, Chemical
Fulei Chen, Huaqing Ma, Zihan Liu, Lianyong Zhou, Yongzhi Zhao
Summary: A particle breakage model based on the particle replacement scheme, using the polyhedral model to describe particles, is proposed in this work to accurately describe the breakage of a large number of particles. Additionally, a fast-cutting algorithm is proposed to reproduce the size distribution of progeny particles determined by the breakage model. The validation and simulation results show satisfactory accuracy, efficiency, and stability of the algorithm.
Review
Engineering, Chemical
Matteo Errigo, Christopher Windows-Yule, Massimiliano Materazzi, Dominik Werner, Paola Lettieri
Summary: Gas-solid fluidized-bed systems have advantages in terms of chemical reaction efficiency and temperature control, making them widely used in industrial applications. However, the design, scale-up, and optimization of these complex units are limited by the lack of deep physical understanding. Non-invasive and non-intrusive diagnostic techniques provide a way for researchers to study these systems without affecting the flow field or directly contacting the medium under study.
Article
Engineering, Chemical
Saeed Fateh, Mohammad Behshad Shafii, Mohammad Najafi, Cyrus Aghanajafi
Summary: Applying a magnetic field to ferrofluids alters their flow characteristics and enhances heat transfer. Through visualization and quantitative investigation, it is found that the magnetic field influences the flow patterns and velocity profiles, improving fluid mixing and vorticity magnitude.
Article
Engineering, Chemical
Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao
Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.
Article
Engineering, Chemical
Xuan Liu, Jie Gong, Kai Jiang, Xiaojuan Lai, Yu Tian, Kang Zhang
Summary: This study aimed to improve the performance of lignite coal water slurries (CWSs) by synthesizing a series of three-arm amphiphilic block copolymers. By controlling the relative molecular weight, hydrophilic/hydrophobic ratio, and ionic group content, the apparent viscosity of CWSs was significantly reduced and the static stability was improved. Thermogravimetric testing and XPS analysis were conducted to reveal the mechanism behind the improved performance.
Article
Engineering, Chemical
Lanka Dinushke Weerasiri, Daniel Fabijanic, Subrat Das
Summary: Fluidization at low pressure offers significant benefits for the fine chemical industry. This study investigates the behavior of bubbles and bed expansion under low pressure conditions. It is found that lower pressure leads to larger bubbles, increased bubble quantity, and higher aspect ratio. The predictability is affected by the inhomogeneous fluidization, but low pressure fluidization can generate similar bubble sizes with lower fluidizing mass compared to atmospheric pressure.
