4.5 Article

Influence of MgO in form of magnesite on properties and mineralogy of high chromium, vanadium, titanium magnetite sinters

期刊

IRONMAKING & STEELMAKING
卷 42, 期 3, 页码 217-225

出版社

MANEY PUBLISHING
DOI: 10.1179/1743281214Y.0000000223

关键词

MgO; RDI; High chromium vanadium and titanium magnetite; Sinter; mineralogy; Iron ore

资金

  1. National High Technology Research and Development Program of China (863 Program) [2012AA062302, 2012AA 062304]
  2. Major Program of the National Natural Science Foundation of China [51090384]
  3. Special Fund of Chinese Central University for Basic Scientific Research Operation [N110202001]
  4. international cooperation of Ministry of science and technology major of China [2012DFR60210]

向作者/读者索取更多资源

MgO in blast furnace slag provides an optimum condition in terms of both good flow ability and desulphurisation. The effect of MgO on blast furnace slag is fairly well established, but its effect on sintering and sinter quality is unclear especially on high chromium, vanadium, titanium magnetite (Cr-V-Ti magnetite) sinters. In the present study the effect of MgO, in the form of magnesite (MgCO3), on sintering rate was calculated. Cr-V-Ti magnetite sinters with varying MgO content (1.95-3.01%) were tested for yield, strength and reduction degradation index. Productivity and comprehensive index were evaluated. Mineralogical microstructure and SEM-EDS analysis was done to measure the chemical analysis of oxide and slag phases, and XRD and XRD mapping was carried out to understand the interaction mechanism of MgO. From the results, it was observed that with increasing MgO, yield and TI initially increased then decreased with MgO addition, which is unfavourable for the formation of calcium ferrites but increases the silicate phases, and stabilises the crystal of magnetite in Cr-V-Ti magnetite Sinter. RDI was found to improve, productivity fluctuated, comprehensive index improved substantially in the range of 1.95-2.63%MgO but then decreased quickly. The studies revealed that most of the Mg2+ was picked up by magnetite phase to form (Fe,Mg)O center dot Fe2O3 and (Mg center dot Fe)O center dot Fe2O3.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Engineering, Electrical & Electronic

Compressible and sensitive aerogels derived from graphene/waste paper for wearable pressure sensor

Ang Li, Ce Cui, Weijie Wang, Yue Zhang, Jianyu Zhai, Ronghui Guo, Cheng Cheng, Wenfeng Qin, Erhui Ren, Hongyan Xiao, Mi Zhou, Jinwei Zhang

Summary: A simple strategy for the fabrication of biomass-derived aerogels with wide-sensing range, high sensitivity, and low detection limit has been developed. The resulting carbonized graphene-coated waste paper aerogel (C-GWA) shows great potential for wearable electronic products.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2022)

Article Physics, Condensed Matter

Pressure-induced Fermi resonance between fundamental modes in phthalic anhydride

HaiRui Liu, YinQi Chen, Guangtao Liu, Mi Zhou

Summary: In situ high-pressure Raman spectra of phthalic anhydride (PA) were measured using a diamond anvil cell technique up to 16 GPa. The results showed that all Raman bands shifted towards the blue region with increasing pressure, and new bands appeared. A possible Fermi resonance phenomenon was proposed at pressures above 6.6 GPa, accompanied by a potential first-order phase transition. The changes in Fermi resonance parameters, including intensity ratio, coupling coefficient, and frequency gap of unperturbed transition, were discussed.

JOURNAL OF PHYSICS-CONDENSED MATTER (2022)

Article Physics, Condensed Matter

Pressure-stabilized high-energy-density material YN10

Wencheng Lu, Kun Hao, Siyu Liu, Jian Lv, Mi Zhou, Pengyue Gao

Summary: A new stable phase of yttrium-nitrogen compound YN10 with metallic character was discovered at high pressure, showing potential as a high-energy-density material.

JOURNAL OF PHYSICS-CONDENSED MATTER (2022)

Article Materials Science, Multidisciplinary

Sulfur-modulated FeNi nanoalloys as bifunctional oxygen electrode for efficient rechargeable aqueous Zn-air batteries

Hailin Yu, Fei Fan, Chao He, Mi Zhou, Tian Ma, Yinghan Wang, Chong Cheng

Summary: S-modulated FeNi nanoalloys supported by hierarchically porous carbon exhibit excellent bifunctional oxygen catalytic activity, outperforming noble-metal-based composite catalysts. They show superior performance in rechargeable zinc-air batteries, providing new insights for the design of FeNi-based materials.

SCIENCE CHINA-MATERIALS (2022)

Article Chemistry, Multidisciplinary

Structural Design and Performance Research of a Knitted Flexible Sensor

Mi Zhou, Yunyan Wang, Weilai Chen, Jinfeng Wang

Summary: This paper mainly focuses on studying the structure and performance of a smart knitting sensor and investigates the properties of different fabrics knitted with conductive yarns. The study reveals that the prepared knitted fabrics not only meet the requirements of air permeability standards and have good elastic recovery but also show different conductivities based on the type and size of the conductive yarn used. The research findings indicate that the conductivity of the fabric is affected by the number of conductive yarn wales and courses, and the stability of conductivity varies for different types of conductive yarns and knitting stitches before and after washing.

ACS OMEGA (2022)

Article Engineering, Civil

The dynamic material properties of stabilised rammed earth materials using cement and calcium carbonate residue

Kewei Liu, Megan Walske, Mi Zhou, Xihong Zhang

Summary: The use of rammed earth as a construction material has gained attention for its sustainability and low-cost potential. However, the mechanical performance of stabilized rammed earth, particularly under dynamic loading, is not well understood. This study experimentally investigates the quasi-static and dynamic material properties of cement and calcium carbonate residue stabilized rammed earth, and derives empirical formulae for the dynamic increase factor.

INTERNATIONAL JOURNAL OF PROTECTIVE STRUCTURES (2023)

Article Engineering, Ocean

Combined bearing capacity of bucket foundations in soft-over-stiff clay

Huxi Xia, Mi Zhou, Fujun Niu, Xihong Zhang, Yinghui Tian

Summary: This study investigates the combined capacity of bucket foundations in soft-over-stiff clay under general loading through numerical analysis. It proposes an empirical design procedure to evaluate the failure envelopes of these foundations. The results show that the presence of soft clay significantly reduces the uniaxial bearing capacities.

APPLIED OCEAN RESEARCH (2022)

Article Polymer Science

The crystalline behavior of poly(L-lactide) induced by nucleating agents with amide structure: The effect of benzamide molecule symmetry

Zejian He, Haifeng Shao, Nannan Zhang, Jie Li, Hai Xiao, Tianhang Weng, Mi Zhou, Bianying Wen, Yulong Chen

Summary: This study designed and synthesized three amide nucleating agents with different symmetries to investigate the effect of symmetry on PLLA crystallization. It was found that the C3 symmetric amide structure exhibited the best performance as an efficient nucleation site.

JOURNAL OF POLYMER SCIENCE (2023)

Review Engineering, Environmental

Modulating coordination structures and metal environments of MOFs-Engineered electrocatalysts for water electrolysis

Huijuan Wu, Weiqiong Zheng, Ran Zhu, Mi Zhou, Xiancheng Ren, Yinghan Wang, Chong Cheng, Hongju Zhou, Sujiao Cao

Summary: This article comprehensively summarizes and discusses the most important advances in engineering MOF nanoarchitectures for efficient water electrolysis. First, the methods of modulating the coordination structures and metal atom environments of MOF and MOF-derived catalysts are reviewed, and then their applications in water splitting are discussed based on the coordination structure and local atomic environment.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Environmental Sciences

Hydrocarbons removal and microbial community succession in petroleum-contaminated soil under hydrogen peroxide treatment

Bing Yang, Mi Zhou, Yuan Meng, Keming Chen, Jie Xu, Xiangfu Huang, Yucheng Liu, Lingli Li, Lili Ma, Mingyan Chen

Summary: Chemical oxidation as a pretreatment for petroleum-contaminated soil, coupled with bioremediation, can have serious impacts on indigenous microorganisms and available nutrients. This study found that hydrogen peroxide treatments significantly promoted the removal of total petroleum hydrocarbons (TPH), especially in the initial days, and also affected the levels of dissolved nutrients. Both chemical oxidation and nutrients contribute to changes in microbial community structure and diversity. However, the long-term effects of H2O2 as a pretreatment had little impact on the soil indigenous microbial community structure and actually facilitated the continuous removal of TPH by indigenous microorganisms.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2023)

Article Engineering, Electrical & Electronic

Very fast transient overvoltage calculation and evaluation for 500-kV gas insulated substation power substation with double circuit and long gas insulated substation busbar

Runyu Fu, Jianguo Wang, Jianping Wang, Mi Zhou, Cai Li, Yating Zhao, Yadong Fan

Summary: This paper establishes a holistic model of a 500 kV GIS step-up substation equipment in a coastal power plant using the Electromagnetic Transient Program (EMTP). It investigates the VFTO waveform generated in different operations and analyzes its impact on equipment.

IET GENERATION TRANSMISSION & DISTRIBUTION (2023)

Article Engineering, Electrical & Electronic

Lightning inductive coupling characteristics of parallel cables: Computation and measurement validation

Mi Zhou, Weihan Zhao, Shengquan Zheng, Yongming Guo, Zehong Yang, Jianguo Wang, Li Cai, Yadong Fan

Summary: This study establishes a simulation model to investigate the lightning inductive characteristics between parallel cables. The research findings indicate that an increase in the horizontal distance between cables leads to a decrease in the cable induced voltage. Additionally, linear correlations exist between the height difference or disturbed cable length and the cable induced voltage, reaching maximum when the cables are at the same height and of equal length.

IET SCIENCE MEASUREMENT & TECHNOLOGY (2023)

Article Spectroscopy

High pressure Raman study of LiClO4

DongFei Li, Shuo Zhang, Hongsheng Jia, Mingxing Song, Ying Zhang, Haibo Li, Mi Zhou

Summary: In this study, high pressure Raman research was conducted on lithium perchlorate crystal, and it was found that the crystal undergoes phase transformations under different pressure conditions, which has significant implications for its performance.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2023)

Article Engineering, Environmental

Targeted therapy for autoimmune diseases based on multifunctional frame nucleic acid system: Blocking TNF-α-NF-ΚB signaling and mediating macrophage polarization

Mei Zhang, Yuting Wen, Zhangheng Huang, Xin Qin, Mi Zhou, Dexuan Xiao, Weitong Cui, Zhiqiang Liu, Yunfeng Lin

Summary: A novel nanomedicine was developed for the treatment of rheumatoid arthritis, which carries methotrexate and uses aptamer targeting tumor necrosis factor-alpha. This targeted nanomedicine accumulates in the inflammatory joints, reducing systemic toxicity and decreasing joint damage.

CHEMICAL ENGINEERING JOURNAL (2023)

Review Chemistry, Multidisciplinary

Nanostructures and catalytic atoms engineering of tellurium-based materials and their roles in electrochemical energy conversion

Tiantian Li, Yuting Deng, Xiao Rong, Chao He, Mi Zhou, Yuanjiao Tang, Hongju Zhou, Chong Cheng, Changsheng Zhao

Summary: This review comprehensively summarizes the main advances and applications of tellurium-based nanomaterials (Te NMs) in electrocatalysis. The engineering strategies and principles to enhance the electrocatalytic activity and stability of Te NMs are discussed, including chemical/physical/multiplex templating strategies, heteroatom doping, and phase engineering. The typical applications of Te NMs in electrocatalysis are also presented. Finally, the key issues, challenges, and development trends of Te NMs as electrocatalysts are highlighted.

SMARTMAT (2023)

暂无数据