Feasibility study of the new rutile extraction process from natural ilmenite ore based on the oxidation reaction

Satoshi Itoh; Shogo Sato; Junji Ono; Hidehiko Okada; Tetsuya Nagasaka

doi:10.1007/BF02735020

Feasibility study of the new rutile extraction process from natural ilmenite ore based on the oxidation reaction

Satoshi Itoh, Shogo Sato, Junji Ono, Hidehiko Okada, Tetsuya Nagasaka

New Industry Creation Hatchery Center (NICHe)

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

25 Citations (Scopus)

Abstract

Phase relations in the Fe₂O₃-FeTiO ₃-TiO₂ system were investigated by equilibrating synthetic samples in evacuated sealed quartz tubes at a temperature of 1373 K. The equilibrium partial pressure of oxygen was measured by the electromotive force (EMF) method in the temperature range of 1273 to 1373 K. The phase diagram and oxygen partial pressure diagram in the titanium-iron-oxygen ternary system were then constructed at 1373 K. Rutile extraction from natural ilmenite ore was discussed from the thermodynamic viewpoint. It is found that rutile can be produced from common natural ilmenite ores not only by the reduction as the conventional titanium-rich slag process but also by an oxidation. Then, the oxidation experiment was conducted in air using Australian ilmenite ore to obtain rutile as one of the coexistent phases. Magnetic separation and leaching experiments for synthesized pseudobrookite and reagent rutile were conducted to confirm the possibility of separation of rutile from pseudobrookite. A new rutile extraction process was then proposed.

Original language	English
Pages (from-to)	979-985
Number of pages	7
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	37
Issue number	6
DOIs	https://doi.org/10.1007/BF02735020
Publication status	Published - 2006 Dec

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title = "Feasibility study of the new rutile extraction process from natural ilmenite ore based on the oxidation reaction",

abstract = "Phase relations in the Fe2O3-FeTiO 3-TiO2 system were investigated by equilibrating synthetic samples in evacuated sealed quartz tubes at a temperature of 1373 K. The equilibrium partial pressure of oxygen was measured by the electromotive force (EMF) method in the temperature range of 1273 to 1373 K. The phase diagram and oxygen partial pressure diagram in the titanium-iron-oxygen ternary system were then constructed at 1373 K. Rutile extraction from natural ilmenite ore was discussed from the thermodynamic viewpoint. It is found that rutile can be produced from common natural ilmenite ores not only by the reduction as the conventional titanium-rich slag process but also by an oxidation. Then, the oxidation experiment was conducted in air using Australian ilmenite ore to obtain rutile as one of the coexistent phases. Magnetic separation and leaching experiments for synthesized pseudobrookite and reagent rutile were conducted to confirm the possibility of separation of rutile from pseudobrookite. A new rutile extraction process was then proposed.",

author = "Satoshi Itoh and Shogo Sato and Junji Ono and Hidehiko Okada and Tetsuya Nagasaka",

note = "Funding Information: The authors express their appreciation to Mr. K. Suda (Tohoku University) for his assistance with analyses by EPMA. Financial support from a Research for Promoting Technological Seeds funded from the Japan Science and Technology Agency (JST) in 2005 is also gratefully acknowledged.",

year = "2006",

month = dec,

doi = "10.1007/BF02735020",

language = "English",

volume = "37",

pages = "979--985",

journal = "Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science",

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T1 - Feasibility study of the new rutile extraction process from natural ilmenite ore based on the oxidation reaction

AU - Itoh, Satoshi

AU - Sato, Shogo

AU - Ono, Junji

AU - Okada, Hidehiko

AU - Nagasaka, Tetsuya

N1 - Funding Information: The authors express their appreciation to Mr. K. Suda (Tohoku University) for his assistance with analyses by EPMA. Financial support from a Research for Promoting Technological Seeds funded from the Japan Science and Technology Agency (JST) in 2005 is also gratefully acknowledged.

PY - 2006/12

Y1 - 2006/12

N2 - Phase relations in the Fe2O3-FeTiO 3-TiO2 system were investigated by equilibrating synthetic samples in evacuated sealed quartz tubes at a temperature of 1373 K. The equilibrium partial pressure of oxygen was measured by the electromotive force (EMF) method in the temperature range of 1273 to 1373 K. The phase diagram and oxygen partial pressure diagram in the titanium-iron-oxygen ternary system were then constructed at 1373 K. Rutile extraction from natural ilmenite ore was discussed from the thermodynamic viewpoint. It is found that rutile can be produced from common natural ilmenite ores not only by the reduction as the conventional titanium-rich slag process but also by an oxidation. Then, the oxidation experiment was conducted in air using Australian ilmenite ore to obtain rutile as one of the coexistent phases. Magnetic separation and leaching experiments for synthesized pseudobrookite and reagent rutile were conducted to confirm the possibility of separation of rutile from pseudobrookite. A new rutile extraction process was then proposed.

AB - Phase relations in the Fe2O3-FeTiO 3-TiO2 system were investigated by equilibrating synthetic samples in evacuated sealed quartz tubes at a temperature of 1373 K. The equilibrium partial pressure of oxygen was measured by the electromotive force (EMF) method in the temperature range of 1273 to 1373 K. The phase diagram and oxygen partial pressure diagram in the titanium-iron-oxygen ternary system were then constructed at 1373 K. Rutile extraction from natural ilmenite ore was discussed from the thermodynamic viewpoint. It is found that rutile can be produced from common natural ilmenite ores not only by the reduction as the conventional titanium-rich slag process but also by an oxidation. Then, the oxidation experiment was conducted in air using Australian ilmenite ore to obtain rutile as one of the coexistent phases. Magnetic separation and leaching experiments for synthesized pseudobrookite and reagent rutile were conducted to confirm the possibility of separation of rutile from pseudobrookite. A new rutile extraction process was then proposed.

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Feasibility study of the new rutile extraction process from natural ilmenite ore based on the oxidation reaction

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