Calcium Vapor Reduction of Niobium Oxide Compounds

被引：1

作者：

Kryzhanov, M. V. ^{[1
]}

Orlov, V. M. ^{[1
]}

机构：

[1] Russian Acad Sci, Kola Sci Ctr, Tananaev Inst Chem & Technol Rare Elements & Miner, Fed Res Ctr, Apatity 184209, Murmansk Oblast, Russia

来源：

INORGANIC MATERIALS | 2023年 / 59卷 / 11期

关键词：

niobium; powder; calciothermic reduction; niobium pentoxide; magnesium niobate; adiabatic temperature; specific surface area; porosity; MAGNESIOTHERMIC REDUCTION; CALCIOTHERMIC REDUCTION; POWDER; TANTALUM; MAGNESIUM;

D O I：

10.1134/S0020168523110079

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Calcium vapor reduction of niobium oxide compounds has been studied at temperatures from 1023 to 1123 K. The adiabatic temperature of calcium reduction of niobium pentoxide (3020 K) and the Mg4Nb2O9 niobate (2525 K) has been determined by thermodynamic modeling with the TERRA software suite. We have assessed the effects of process temperature, reduction time, and precursor powder particle size on the degree of reduction, specific surface area, and pore structure of the niobium powders.

引用

页码：1250 / 1260

页数：11

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