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NIOBIUM: 作品数：281被引量：577H指数：10; 导出分析报告; 相关作者：闫久春赵东升纪卓尚刘玉君李想更多>>; 相关机构：西安建筑科技大学哈尔滨工业大学大连理工大学上海交通大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划国家教育部博士点基金更多>>

Enrichment of Nb and Ti from carbonatite pyrochlore ore via calcining-slaking followed by gravity separation: 《International Journal of Mining Science and Technology》2022年第3期615-626,共12页Shuhui Zhang Mingjun Rao Rendong Xiao Jinxiang You Guanghui Li Tao Jiang; This work was supported by the Basic Science Center Project for National Natural Science Foundation of China(No.72088101);the National Key Research and Development Program of China(No.2020YFC1909800);the Hunan Provincial Innovation Founda-tion for Postgraduate(No.2021zzts0298).; In this work,a novel process consisting of calcining-slaking followed by gravity separation for the enrichment of niobium(Nb)and titanium(Ti)from carbonatite pyrochlore ore was proposed,validated and compared with the...; 关键词：NIOBIUM Titanium Pyrochlore ore CALCINATION Gravity separation

A novel approach to extract Nb,Y and Ce from a niobium-bearing ore of low grade by roasting KHSO_(4)-H_(2)SO_(4) system被引量：1: 《Rare Metals》2021年第7期1979-1986,共8页Wen-Cheng Gao Jian-Kang Wen Biao Wu He Shang Xue Liu; China Postdoctoral Science Foundation(No.2014M560922)。; In this work,a novel approach of leaching valuable metals,such as niobium,yttrium and cerium,from a niobium-bearing ore of low grade by roasting KHSO_(4)-H_(2)SO_(4)system was experimentally studied.Through the work,t...; 关键词：ROASTING Extraction NIOBIUM YTTRIUM CERIUM Low grade

Separation and purification of tantalum from plumbomicrolite of amazonite deposit in Kola Peninsula by acid leaching and solvent extraction被引量：5: 《Journal of Central South University》2021年第1期72-88,共17页S M MASLOBOEVA L G ARUTYUNYAN M N PALATNIKOV D V MANUKOVSKAYA; Project supported by the Federal Research Centre of Kola Science Centre of the Russian Academy of Sciences,Russian。; A plumbomicrolite concentrate(PMC)was leached with the mixture of HF and H2SO4,HF and HNO3 acids,respectively.Optimal conditions ensuring high recovery of tantalum and niobium(up to 99%)into solution,and radionuclides...; 关键词：mineral plumbomicrolite TANTALUM NIOBIUM acid leaching RADIOACTIVITY solvent extraction

Behavior of Nb influence on structure and properties of 30Cr13 cast martensitic stainless steel被引量：3: 《Journal of Iron and Steel Research International》2019年第5期462-471,共10页Yang-fan Jin Tuo Zhang Qi-yu Zang Yi-tao Yang; The microstructure, mechanical properties and corrosion resistance of 30Cr13 martensitic stainless steel (MSS) with different Nb contents were investigated by using the optical microscope, scanning electron microscope...; 关键词：NIOBIUM ADDITION Martensitic STAINLESS steel Microstructure Mechanical property Corrosion resistance

Niobium and phosphorus behavior during melting-separation process of pre-reduced niobium ore concentrate被引量：2: 《Journal of Iron and Steel Research International》2017年第7期691-696,共6页Yu-bao Liu Zhi-hong Zhang Er-xiong Zhao Xian-heng Zhang Xiao-qing Wang Guo-hua Chen; financially supported by the National Science and Technology Support Program (2008BAB32087); The pre-reduced Bayan Obo ferroniobium（FeNb）ore concentrate block was taken as raw materials for studying the physical properties of niobium-enriched slag and changes in niobium recovery rate.In addition,the dephosp...; 关键词：Melting separation Pre-reduced niobium ore concentrate Niobium-enriched slag Iron Dephosphorization rate Niobium recovery rate

Synthesis of niobium borides by powder metallurgy methods using Nb_(2)O_(5), B_(2)O_(3) and Mg blends: 《Transactions of Nonferrous Metals Society of China》2016年第3期747-758,共12页Ozge Balci Duygu Agaogullari M.Lütfi Ovecoglu Ismail Duman; financially supported by“The Scientific and Technological Research Council of Turkey(TUBITAK)”with the project title of“Synthesis of Refractory Metal Borides via Three Different Production Methods from Solid,Liquid and Gas Raw Materials for Various Application Areas,Sintering,Characterization,Comparison of Process and Final Products”and with the project number of 112M470; Niobium boride powders having NbB, NbB2 and Nb3B4 phases in various amounts and single phase NbB powders were successfully synthesized by using powder metallurgy methods from related metal oxide raw materials in the p...; 关键词：niobium boride powders powder metallurgy mechanochemical synthesis annealing microstructure

Thermodynamic Behaviors of Nb and P in Dephosphorization of Niobium-bearing Hot Metal with BaO-based Slag被引量：1: 《Journal of Iron and Steel Research International》2014年第S1期39-43,共5页Yong-li JIN Zeng-wu ZHAO Jie-yu ZHANG Wen-jie NI; Item Sponsored by Inner Mongolia Natural Science Foundation of China(2011MS0726);Inner Mongolia University of Science and Technology Innovation Foundation of China(2009NC016);Inner Mongolia Key Laboratory for Utilization of Bayan Obo Multi-metallic Resources Foundation of China(BO-13-003); The Bayan Obo iron ore contains valuable metallic elements such as niobium and rare earth elements. However, developing appropriate metallurgical processes to achieve effective dephosphorization of Nb-bearing hot meta...; 关键词：Niobium-bearing hot metal NIOBIUM DEPHOSPHORIZATION Thermodynamics BaO-based slag

Extraction of niobium, yttrium, and cerium from a low-grade niobium-bearing ore by roasting(NH_4)_2SO_4-Na_2SO_4-H_2SO_4 system被引量：7: 《Rare Metals》2014年第6期754-760,共7页Wen-Cheng Gao Jian-Kang Wen Biao Wu He Shang; financially supported by the National 12th Five-Year Science and Technology Support Programs (Nos. 2012BAB10B00 and 2012BAB10B08); A novel process of extracting niobium, yttrium,and cerium from a low-grade niobium-bearing ore by the roasting（NH4）2SO4-Na2SO4-H2SO4 system was experimentally studied. The influences of various factors,such as roast...; 关键词：EXTRACTION NIOBIUM YTTRIUM CERIUM Lowgrade

Metallurgical Optimization of Microalloyed Steels for Oil and Gas Transmission Pipelines: 《Journal of Iron and Steel Research International》2011年第S1期669-674,共6页Stalheim Douglas; The production of microalloyed steels for oil and gas transmission pipelines has increased significantly over the past years.With more and more countries developing their own capabilities to produce pipeline steels to...; 关键词：MICROALLOY NIOBIUM PIPELINE SOLUBILITY grain size rolling schedule

Dissolution of FeNb in liquid steel and best practices to increase niobium recovery during ladle refining: 《Baosteel Technical Research》2010年第S1期19-,共1页Edmundo Burgos CRUZ Daniel Pallos FRIDMAN Marcelo C CARBONI Rogerio Contato GUIMARAES Marcos A Stuart NOGUEIRA Ferdinando Luiz CAVALLANTE; This paper presents a microstructural characterization of standard ferroniobium(FeNb) and a study of its dissolution in steel.Interrupted dissolution trials at different temperatures were carried out in a laboratory i...; 关键词：FeNb FERRONIOBIUM DISSOLUTION microalloyed steel STEELMAKING

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