Preparation of Magnetite Particles from Hematite and Goethite in Aqueous Medium

被引：0
|
作者：
Savchenko, T. S. [1 ]
Ponomar, V. P. [1 ]
Dudchenko, N. O. [1 ]
Grechanovsky, A. E. [1 ]
Brik, A. B. [1 ]
机构：
[1] NASU, MP Semenenko Inst Geochem Mineral & Ore Format, 34 Palladina Prosp, UA-03680 Kiev, Ukraine
来源：
INTERNATIONAL CONFERENCE ON NANOMATERIALS: APPLICATION & PROPERTIES (NAP) | 2016年
关键词：
Hematite; Goethite; Magnetite; Phase transformation; Iron ore; Magnetometry;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Phase transformations of hematite and goethite iron ore by heating to temperature of 95 degrees C in aqueous Fe+2-containing water medium were investigated. The saturation magnetization of all initial samples was similar to 1 A.m(2)/kg, while the saturation magnetization of the samples after phase transformations increases greatly (up to 14 A.m(2)/kg for hematite iron ore sample). It was shown by X-Ray diffraction method that some phases transformed into magnetite. Results of this study can be used for solving of fundamental and practical mineralogical problems connected with transformation of weakly magnetic minerals into strongly magnetic magnetite.
引用
收藏
页数：3
相关论文
共 50 条
  • [21] Electrochemical performance of hematite nanoparticles derived from spherical maghemite and elongated goethite particles
    Maiti, D.
    Aravindan, V.
    Madhavi, S.
    Devi, P. Sujatha
    JOURNAL OF POWER SOURCES, 2015, 276 : 291 - 298
  • [22] Effect of Aqueous Fe(II) on Arsenate Sorption on Goethite and Hematite
    Catalano, Jeffrey G.
    Luo, Yun
    Otemuyiwa, Bamidele
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2011, 45 (20) : 8826 - 8833
  • [23] Photocatalytic ammonia synthesis from nitrogen in water using iron oxides: Comparative efficiency of goethite, magnetite, and hematite
    Alves, Catia Alexandra Podence
    Palharim, Priscila Hasse
    Pratto, Bruna
    da Silva, Andre Luiz
    Gouvea, Douglas
    Ramos, Bruno
    JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2025, 460
  • [24] Bulk and key surface structures of hematite, magnetite, and goethite: A density functional theory study
    Martin, Gary J.
    Cutting, Richard S.
    Vaughan, David J.
    Warren, Michele C.
    AMERICAN MINERALOGIST, 2009, 94 (10) : 1341 - 1350
  • [25] ABSORPTION OF OXYGEN INTO AQUEOUS ALKALINE SUSPENSIONS OF FERROUS HYDROXIDE LEADING TO FORMATION OF EXTREMELY FINE GOETHITE AND MAGNETITE PARTICLES
    SADA, E
    KUMAZAWA, H
    CHO, HM
    CHEMICAL ENGINEERING COMMUNICATIONS, 1990, 95 : 145 - 151
  • [26] The mechanism of the thermal transformation from goethite to hematite
    Walter, D
    Buxbaum, G
    Laqua, W
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2001, 63 (03) : 733 - 748
  • [27] The Mechanism of the Thermal Transformation From Goethite to Hematite
    D. Walter
    G. Buxbaum
    W. Laqua
    Journal of Thermal Analysis and Calorimetry, 2001, 63 : 733 - 748
  • [28] Use of micrometer hematite particles and nanodispersed goethite as sorbent for heavy metals
    1600, Izdatel'stvo Nauka (87):
  • [29] Use of micrometer hematite particles and nanodispersed goethite as sorbent for heavy metals
    I. A. Massalimov
    R. R. Il’yasova
    L. R. Musavirova
    M. R. Samsonov
    A. G. Mustafin
    Russian Journal of Applied Chemistry, 2014, 87 : 1456 - 1463
  • [30] Plutonium incorporation into goethite and hematite during crystallization from ferrihydrite Plutonium incorporation into goethite and hematite during crystallization from ferrihydrite
    Balboni, Enrica
    Zavarin, Mavrik
    Kersting, Annie
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2017, 253
12345