检索结果-南通市图书馆

Resource utilization of flue gas calcium-based desulfurization ash:a comprehensive review

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel research International 2023年第3期30卷 405-418页

作者： Dong-xiang Meng Ru-fei Wei Fei-hu Zhang Hong-ming Long Yuan-yuan Zhou School of metallurgical Engineering Anhui University of TechnologyMa’anshan 243032AnhuiChina Key Laboratory of metallurgical Emission Reduction and Resources Recycling Ministry of EducationAnhui University of TechnologyMa’anshan 243032China Industrial Development research Center China Metallurgical Industry Planning and Research InstituteBeijing 100013China

Calcium-based desulfurization ash(CDA)is mainly produced in dry and semi-dry flue gas desulfurization *** property of CDA is extremely unstable because its main component,calcium sulfite,makes it difficult to be directly applied to the field of building *** modification of desulfurization ash can be realized by high-temperature oxidation and wet *** modification,CDA can be widely used in building *** oxidation has broad development prospects because it can complete the oxidation of CDA and the removal of impurity elements at the same *** can be used to prepare high value-added products of calcium sulfate whiskers and ecological rubber fillers.

关键词： Calcium-based desulfurization ash Oxidation modification Building material Calcium sulfate whisker Flue gas desulfurization

Recovery rates of iron, nickel, and chromium via iron-bath reduction of stainless steel dust briquettes based on corundum crucible erosion balance analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Iron and Steel research International 2018年第3期25卷 320-329页

作者： Fei Yuan Hui-ning Zhang Hui Li Jian-hong Dong Hui-hui Xiong An-jun Xu School of metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083 China School of Metallurgy and Chemical Engineering Jiangxi University of Science and TechnologyGanzhou 341000 Jiangxi China china metallurgical industry planning and research institute Beijing 100083 China

The leaching of chromium from stainless steel dust （SSD） is deleterious to the environment. To address this issue, the reduction of SSD briquettes can be employed to effectively extract chromium. The recovery rates of iron, chromium, and nickel via ironbath reduction of SSD briquettes were determined using X-ray fluorescence spectroscopy, X-ray diffraction, and scanning electron microscopy measurements. First, the effects of basicity and contents of silicon, iron, CaF2, and carbon on the recovery rates of the three metals were analyzed using the slag amount prediction model, which was originally established from the A1203 balance of corundum crucible erosion behavior. Second, the effect of feeding mode, i.e., whether steel scrap and SSD briquettes were simultaneously added, on the recovery rates was discussed in detail. Third, the iron-bath reduction of SSD briquettes was thermodynamically analyzed. The results indicated that the recovery rates of the three metals are greater than 95% those of using a basicity of 1.5 and 6.0% CaF2, 15% carbon, and 7% ferrosilicon. The recovery rate of chromium increases twofold with the addition of ferrosilicon. The feeding mode of adding briquettes and steel scrap simultaneously is better for recovery of metals and separation of the metal and slag than the feeding mode of adding steel scrap firstly and then briquettes.

关键词： Stainless steel dust Erosion model Ferrosilicon Iron Nickel-Chromium Recovery Iron-bath reduction

Effect of Nickel on Formation Mechanisms of Silico-ferrite of Calcium and Aluminum(SFCA)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Iron and Steel research International 2015年第6期22卷 478-486页

作者： Xin-yu LI Bu-xin SU Lei-ge XIA Jian-liang ZHANG Hong-wei GUO School of metallurgical and Ecological Engineering University of Science and Technology Beijing Department of Smelting and Raw Material China Metallurgical Industry Planning and Research Institute Shagang School of Iron and Steel Soochow University

Under the pressures of both the de＇crease of high-grade high quality iron ore resources and the increase of raw material costs, the iron and steel enter＇prises in china turn to adopt iron ores which contain special elements such as nickel, manganese, etc. in the sintering blend. Anaiytica｜ reagents were used for sintering experiments, and the sinters were analyzed with X-ray diffraction, s6ailning electron microscopy and mineralogical microscopy to study the effect of nickel on the silico ferrite of calcium and aluminum （SF（＇A） bonding phase formation during sinte- ring. The results indicated that SFCA was divided into nickel containing and nickel-free areas due to the presence of nickel. The increasing content of nickel would greatly reduce the content of SFCA and promote the formation of calcium aluminum silicate. A great deal of Fe2 Oa participated in the crystal transition to Fe3 O3 , reducing the a mount of Fe2O2 involved in the formation of calcium ferrite. When the blending ratio of NiO, which is used to provide the nickel in the sintering process, is less than 3 % , the calcium ferrite is in substantially interleaving cot rosion with hematite and magnetite. Both the porosity and silicate glass phase content are low, which contributes to the sintering production.

关键词： nickel SFCA sinter effect mechanism

Critical assessment of mixing thermodynamic functions of Fe-Al binary melts based on atom-molecule coexistence theory

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel research International 2020年第3期27卷 266-281页

作者： Xue-min Yang Jin-yan Li Fang-jia Yan Dong-ping Duan CAS Key Laboratory of Green Process and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Department of Metallurgy and Raw Materials China Metallurgical Industry Planning and Research InstituteBeijing 100711China

In order to further verify the accuracy and feasibility of the calculated mass action concentrations Ni of Al and Fe by the developed atom and molecule coexistence theory(AMCT)model,i.e.,AMCT-N,model,for representing activities aR,i of Al and Fe in Fe-Al binary melts reported in the first part of the serial studies,the molar mixing thermodynamic functions of Fe-Al binary melts over a temperature range from 1823 to 1973 K have been calculated based on Ni of Al and Fe as well as the effect of temperature on activity coefficients 7,of Al and Fe as■lnγj/■T=■ln(Ni/xi)/dT by the developed AMCTN-Ni model,where T is absolute temperature and.v,is the mole fraction of element i or compound i in metallic *** reported molar mixing thermodynamic functions of Fe-Al binary melts as well as the reported excess molar mixing thermodynamic functions of Fe-Al binary melts relative to ideal solution as a basis from the available literatures have been critically assessed and applied as criteria to verify the developed AMCT-Al,*** effect of changing temperature onγi of Al and Fe,i.e.,activity coefficient gradients■lnγAl/■T and■lnγFe/■T,which are two indispensable parameters to calculate the molar mixing thermodynamic functions of Fe-Al binary melts,can be accurately obtained by the developed AMCT-Ni,model and expressed by the cubic polynomial *** only the partial molar mixing thermodynamic functions of Al and Fe in Fe-Al binary melts but also the integral molar mixing thermodynamic functions of Fe-Al binary melts can be accurately calculated by the developed AMCT-Al,***,the excess partial and integral molar mixing thermodynamic functions of Fe-Al binary melts relative to ideal solution as a basis can also be precisely calculated by the developed AMCT-Ni,model.

关键词： Thermodynamic assessment Fe-Al binary melt Molar mixing thermodynamic function Excess molar mixing thermodynamic function Activity Atom and molecule coexistence theory

Effect of Coke Reaction Index on Reduction and Permeability of Ore Layer in Blast Furnace Lumpy Zone Under Non-Isothermal Condition

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Iron and Steel research International 2013年第4期20卷 6-10页

作者： ZHAO Hong-bo BAI Yong-qiang CHENG Shu-sen State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing School of metallurgical and Ecological Engineering University of Science and Technology Beijing china metallurgical industry planning and research institute

Reasonable control on CRI（coke reaction index）is one of the key factors for BF（blast furnace）low-carbon ***,there are contrary *** is increasing CRI to improve reaction efficiency in BF and the other is decreasing CRI to suppress coke degradation in *** methods are adopted to realize effective catalysis（increasing CRI）and passivation（decreasing CRI）of *** tests of coke in BF lumpy zone under gradual temperature rising have been *** of CRI on gas composition,ore reduction,burden column permeability and heat reserve zone′s temperature under non-isothermal condition are *** combined with iron making calculations,a novel BF operation suggestion is proposed as coke nut with small size be catalyzed and mixed with ore while skeletal coke with large size be passivated and separately charged into BF.

关键词： blast furnace low carbon smelting resistance loss coke reaction index

Decarbonization options of the iron and steelmaking industry based on a three-dimensional analysis

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2023年第2期30卷 388-400页

作者： Xin Lu Weijian Tian Hui Li Xinjian Li Kui Quan Hao Bai Department of Metallurgy Graduate School of EngineeringTohoku UniversitySendai 980-8579Japan School of metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China china metallurgical industry planning and research institute(MPI) Beijing 100711China Carbon Dioxide research Division CISDI Research&Development Co.Ltd.Chongqing 401122China

Decarbonization is a critical issue for peaking CO_(2) emissions of energy-intensive industries,such as the iron and steel *** decarbonization options of china’s ironmaking and steelmaking sector were discussed based on a systematic three-dimensional low-carbon analysis from the aspects of resource utilization(Y),energy utilization(Q),and energy cleanliness which is evaluated by a process general emission factor(PGEF)on all the related processes,including the current blast furnace(BF)-basic oxygen furnace(BOF)integrated process and the specific sub-processes,as well as the electric arc furnace(EAF)process,typical direct reduction(DR)process,and smelting reduction(SR)*** study indicates that the three-dimensional aspects,particularly the energy structure,should be comprehensively considered to quantitatively evaluate the decarbonization road map based on novel technologies or *** scrap utilization(improvement of Y)and the substitution of carbon-based energy(improvement of PGEF)in particular is *** terms of process scale,promoting the development of the scrap-based EAF or DR-EAF process is highly encouraged because of their lower *** three-dimensional method is expected to extend to other processes or industries,such as the cement production and thermal electricity generation industries.

关键词： peak CO_(2)emission low carbon management decarbonization option energy-intensity industry ironmaking and steelmaking

Thermodynamics of Cu-Y-I (I=Sn, Zn, Pb) Liquid Solutions

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 1994年第3期10卷 217-220页

作者： Ting DU and Guodong LI(Central Iron and Steel research institute, Ministry of metallurgical industry, Beijing, 100081, china) Central Iron and Steel research Inst Ministry of Metallurgical Industry Beijing China

The isoactivity of [Y] of samples was obtained in multiple- hole graphite crucibles by controlling the oxygen potential through the reaction 2 [Y]+3CO = Y2O3+3C. The activity interaction coefficients between Y and Sn. Zn, Pb alloying elements were determined by using coniugate gradient method of solving ill-conditioned equations. The equilibrium constant of the reaction 2 [Y]+3 [O] = Y2O3 and the standard free energy of formation of Y2O3 in liquid Cu were obtained at 1200℃

关键词： Pb Liquid Solutions I=Sn Thermodynamics of Cu-Y-I Zn I Cu

DESIGN AND DEVELOPMENT OF A HIGH PERFORMANCE ANODE FOR CHLORINE-EVOLUTION

在线全文

学校读者我要写书评

暂无评论

Transactions of Nonferrous Metals Society of china 1996年第1期6卷 85-88页

作者： Tang Dian Lin Xuan Cui Xiong Yan Qi institute for Materials research of Fuzhou University Fuzhou 350002 Fujian research institute of metallurgical industry Fuzhou 350011

The literatures were analyzed,ingredients were designed»the mono/double layered structures were *** was found that the excellent titanium anodes could be obtained by adding cobalt into the intermediate *** an anode ma... 详细信息

关键词： titanium anode cobit chlorine-evolution

Synergetic pathways of water-energy-carbon in ecologically vulnerable regions aiming for carbon neutrality:a case study of Shaanxi,china

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Environmental Science & Engineering 2024年第9期18卷 1-15页

作者： Yingying Liu Hanbing Li Sha Chen Lantian Zhang Sumei Li He Lv Ji Gao Shufen Cui Kejun Jiang Department of Environmental Science Key Laboratory of Beijing on Regional Air Pollution ControlBeijing University of TechnologyBeijing 100124China china metallurgical industry planning and research institute Beijing 100711China Environmental Defense Fund Beijing 100007China Department of Financial Management Lishui UniversityLishui 323000China Energy research institute Beijing 100038China

Synergetic energy-water-carbon pathways are key issues to be tackled under carbon-neutral target and high-quality development worldwide,especially in ecologically vulnerable regions(EVRs).In this study,to explore the synergistic pathways in an EVR,a water-energy-carbon assessment(WECA)model was built,and the synergistic effects of water-energy-carbon were comprehensively and quantitatively analyzed under various scenarios of regional *** Province was chosen as the representative EVR,and Lower challenge(LEC)and Greater challenge(GER)scenarios of zerocarbon transition were set considering the technological maturity and regional energy *** results showed that there were limited effects under the zero-carbon transition of the entire region on reducing water withdrawals and improving the water *** the LEC scenario,the energy demand and CO_(2) emissions of Shaanxi in 2060 will decrease by 70.9%and 99.4%,respectively,whereas the water withdrawal and freshwater aquatic ecotoxicity potential(FAETP)will only decrease by 8.9%and 1.6%,*** could be attributed to the stronger demand for electricity in the energy demand sector caused by industrial transition *** GER scenario showed significant growth in water withdrawals(16.0%)and FAETP(36.0%)because of additional biomass *** promote the synergetic development of regional transition,EVRs should urgently promote zero-carbon technologies(especially solar and wind power technologies)between 2020 and 2060 and dry cooling technology for power generation before *** particular,a cautious attitude toward the biomass energy with carbon capture and storage technology in EVRs is strongly recommended.

关键词： Carbon neutrality Water withdrawals Water environment quality Ecologically vulnerable region Typical regional transition