Magnesium-vapor reduction of niobium oxide compounds

被引:18
作者
Orlov, V. M. [1 ]
Kryzhanov, M. V. [1 ]
Kalinnikov, V. T. [1 ]
机构
[1] Russian Acad Sci, Kola Res Ctr, Tananaev Inst Chem & Technol Rare Elements & Mine, Apatity 184209, Murmansk Oblast, Russia
关键词
POWDER;
D O I
10.1134/S0012500815110026
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The effect of precursor composition and reduction conditions on the characteristics of niobium powders obtained by magnesium reduction were studied. The hypothesis of the possible increase in the specific surface area of the powders by a large factor by using complex oxides as precursors was confirmed. With magnesium niobate Mg4Nb2O9 as the precursor, mesoporous powders, unprecedented in the world, with a specific surface area of up to150 m(2) g(-1) and an average pore size of 4.6 nm were produced.
引用
收藏
页码:257 / 260
页数:4
相关论文
共 10 条
[1]  
Fischer V, 2003, PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON PROPERTIES AND APPLICATIONS OF DIELECTRIC MATERIALS, VOLS 1-3, P1134
[2]   Plasmochemical process for the production of niobium and tantalum nanopowders [J].
Grabis, Janis ;
Munter, Rein ;
Blagoveshchenskiy, Yuri ;
Gorkunov, Valeri ;
Yamshchikov, Leonid .
PROCEEDINGS OF THE ESTONIAN ACADEMY OF SCIENCES, 2012, 61 (02) :137-145
[3]  
[Колосов В.Н. Kolosov V.N.], 2008, [Расплавы, Rasplavy], P89
[4]  
Kumar T.S., 2013, J METALL
[5]   Production of niobium powder by magnesiothermic reduction of niobium oxides in a cyclone reactor [J].
Luidold, Stefan ;
Antrekowitsch, Helmut ;
Ressel, Robert .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2007, 25 (5-6) :423-432
[6]   Production of niobium powder by preform reduction process using various fluxes and alloy reductant [J].
Okabe, TH ;
Iwata, S ;
Imagunbai, M ;
Mitsuda, Y ;
Maeda, M .
ISIJ INTERNATIONAL, 2004, 44 (02) :285-293
[7]   Production of tantalum powders by the magnesium reduction of tantalates [J].
Orlov V.M. ;
Kryzhanov M.V. .
Russian Metallurgy (Metally), 2015, 2015 (07) :590-593
[8]   Magnesium reduction of tantalum oxide compounds [J].
Orlov, V. M. ;
Kryzhanov, M. V. ;
Kalinnikov, V. T. .
DOKLADY CHEMISTRY, 2014, 457 :160-163
[9]  
Shekhter L.N., 2001, US Patent, Patent No. 6171363
[10]   Characteristic Variation of Niobium Powder Produced under Various Reduction Temperature and Amount of Reductant Addition [J].
Yoon, Jae-sik ;
Goto, Shoji ;
Kim, Byung Il .
MATERIALS TRANSACTIONS, 2010, 51 (02) :354-358