Mechanically induced reduction of ilmenite (FeTiO3) and rutile (TiO2) by magnesium

N. J. Welham

doi:10.1016/S0925-8388(98)00526-X

Mechanically induced reduction of ilmenite (FeTiO₃) and rutile (TiO₂) by magnesium

N. J. Welham^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

Ilmenite (FeTiO₃) and rutile (TiO₂) have been ball milled with various ratios of metallic magnesium for 100 h in a laboratory mill. The reduction of both oxides was evident directly after milling with substantial formation of MgO. Ilmenite also formed a mixed cation titanate (Mg, Fe)TiO₃ and elemental iron, no reduced phases were observed for rutile. There was no difference between the products obtained by thermal reaction and milling, although energetic reactions observed in milled powder by DTA were not seen in the milled sample and there was no obvious crystallisation of a reduced titanium phase. Solubilisation of titanium from milled powders was found to increase with magnesium content and was >90% for a starting ratio of 1: ≥1 ilmenite: Mg. The unleached material was composed of incompletely reduced phases such as TiO₂, MTiO₃ and Ti₃O₅.

Original language	English
Pages (from-to)	260-265
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	274
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(98)00526-X
Publication status	Published - 26 Jun 1998

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title = "Mechanically induced reduction of ilmenite (FeTiO3) and rutile (TiO2) by magnesium",

abstract = "Ilmenite (FeTiO3) and rutile (TiO2) have been ball milled with various ratios of metallic magnesium for 100 h in a laboratory mill. The reduction of both oxides was evident directly after milling with substantial formation of MgO. Ilmenite also formed a mixed cation titanate (Mg, Fe)TiO3 and elemental iron, no reduced phases were observed for rutile. There was no difference between the products obtained by thermal reaction and milling, although energetic reactions observed in milled powder by DTA were not seen in the milled sample and there was no obvious crystallisation of a reduced titanium phase. Solubilisation of titanium from milled powders was found to increase with magnesium content and was >90% for a starting ratio of 1: ≥1 ilmenite: Mg. The unleached material was composed of incompletely reduced phases such as TiO2, MTiO3 and Ti3O5.",

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T1 - Mechanically induced reduction of ilmenite (FeTiO3) and rutile (TiO2) by magnesium

AU - Welham, N. J.

PY - 1998/6/26

Y1 - 1998/6/26

N2 - Ilmenite (FeTiO3) and rutile (TiO2) have been ball milled with various ratios of metallic magnesium for 100 h in a laboratory mill. The reduction of both oxides was evident directly after milling with substantial formation of MgO. Ilmenite also formed a mixed cation titanate (Mg, Fe)TiO3 and elemental iron, no reduced phases were observed for rutile. There was no difference between the products obtained by thermal reaction and milling, although energetic reactions observed in milled powder by DTA were not seen in the milled sample and there was no obvious crystallisation of a reduced titanium phase. Solubilisation of titanium from milled powders was found to increase with magnesium content and was >90% for a starting ratio of 1: ≥1 ilmenite: Mg. The unleached material was composed of incompletely reduced phases such as TiO2, MTiO3 and Ti3O5.

AB - Ilmenite (FeTiO3) and rutile (TiO2) have been ball milled with various ratios of metallic magnesium for 100 h in a laboratory mill. The reduction of both oxides was evident directly after milling with substantial formation of MgO. Ilmenite also formed a mixed cation titanate (Mg, Fe)TiO3 and elemental iron, no reduced phases were observed for rutile. There was no difference between the products obtained by thermal reaction and milling, although energetic reactions observed in milled powder by DTA were not seen in the milled sample and there was no obvious crystallisation of a reduced titanium phase. Solubilisation of titanium from milled powders was found to increase with magnesium content and was >90% for a starting ratio of 1: ≥1 ilmenite: Mg. The unleached material was composed of incompletely reduced phases such as TiO2, MTiO3 and Ti3O5.

KW - Ilmenite

KW - Magnesium

KW - Reduction

KW - Rutile

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DO - 10.1016/S0925-8388(98)00526-X

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VL - 274

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Mechanically induced reduction of ilmenite (FeTiO₃) and rutile (TiO₂) by magnesium

Abstract

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