Chloride pyrometallurgy of uranium ore, (II)

Tomihiro Taki; Shigetoshi Komoto; Keiichiro Otomura; Toshihide Takenaka; Nobuaki Sato; Takeo Fujino

doi:10.1080/18811248.1996.9731912

Chloride pyrometallurgy of uranium ore, (II)

Tomihiro Taki, Shigetoshi Komoto, Keiichiro Otomura, Toshihide Takenaka, Nobuaki Sato, Takeo Fujino

Division of Process and System Engineering

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

1 Citation (Scopus)

Abstract

Selective extraction of uranium from a phosphate ore was studied by using the mixed gas of Cl₂ and O₂. On heating the ore and carbon mixture in Cl₂, the volatilized chloride of uranium is accompanied by iron, aluminum, phosphorus and silicon chlorides. The addition of O₂ gas effectively lowered the volatilization ratios of aluminum, phosphorus and silicon. The ratio decreased with increasing oxygen flow rate up to 50ml/min at 1,223 K (Cl₂: 100ml/min, O₂+N₂: 400m//min). The volatilization ratio of uranium was almost unchanged at 90% up to 50 ml/min O₂ (carbon amount: 15wt%). The effect of the other parameters, i.e. Cl₂ flow rate, carbon amount, reaction temperature and time was examined.

Original language	English
Pages (from-to)	327-332
Number of pages	6
Journal	journal of nuclear science and technology
Volume	33
Issue number	4
DOIs	https://doi.org/10.1080/18811248.1996.9731912
Publication status	Published - 1996 Apr

Keywords

Chlorination
Chlorine
Oxygen
Phosphate rocks
Pyrometallurgy
Thermodynamics
Uranium chlorides
Uranium ores
Volatilization separation

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering

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10.1080/18811248.1996.9731912

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title = "Chloride pyrometallurgy of uranium ore, (II)",

abstract = "Selective extraction of uranium from a phosphate ore was studied by using the mixed gas of Cl2 and O2. On heating the ore and carbon mixture in Cl2, the volatilized chloride of uranium is accompanied by iron, aluminum, phosphorus and silicon chlorides. The addition of O2 gas effectively lowered the volatilization ratios of aluminum, phosphorus and silicon. The ratio decreased with increasing oxygen flow rate up to 50ml/min at 1,223 K (Cl2: 100ml/min, O2+N2: 400m//min). The volatilization ratio of uranium was almost unchanged at 90% up to 50 ml/min O2 (carbon amount: 15wt%). The effect of the other parameters, i.e. Cl2 flow rate, carbon amount, reaction temperature and time was examined.",

keywords = "Chlorination, Chlorine, Oxygen, Phosphate rocks, Pyrometallurgy, Thermodynamics, Uranium chlorides, Uranium ores, Volatilization separation",

author = "Tomihiro Taki and Shigetoshi Komoto and Keiichiro Otomura and Toshihide Takenaka and Nobuaki Sato and Takeo Fujino",

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T1 - Chloride pyrometallurgy of uranium ore, (II)

AU - Taki, Tomihiro

AU - Komoto, Shigetoshi

AU - Otomura, Keiichiro

AU - Takenaka, Toshihide

AU - Sato, Nobuaki

AU - Fujino, Takeo

PY - 1996/4

Y1 - 1996/4

N2 - Selective extraction of uranium from a phosphate ore was studied by using the mixed gas of Cl2 and O2. On heating the ore and carbon mixture in Cl2, the volatilized chloride of uranium is accompanied by iron, aluminum, phosphorus and silicon chlorides. The addition of O2 gas effectively lowered the volatilization ratios of aluminum, phosphorus and silicon. The ratio decreased with increasing oxygen flow rate up to 50ml/min at 1,223 K (Cl2: 100ml/min, O2+N2: 400m//min). The volatilization ratio of uranium was almost unchanged at 90% up to 50 ml/min O2 (carbon amount: 15wt%). The effect of the other parameters, i.e. Cl2 flow rate, carbon amount, reaction temperature and time was examined.

AB - Selective extraction of uranium from a phosphate ore was studied by using the mixed gas of Cl2 and O2. On heating the ore and carbon mixture in Cl2, the volatilized chloride of uranium is accompanied by iron, aluminum, phosphorus and silicon chlorides. The addition of O2 gas effectively lowered the volatilization ratios of aluminum, phosphorus and silicon. The ratio decreased with increasing oxygen flow rate up to 50ml/min at 1,223 K (Cl2: 100ml/min, O2+N2: 400m//min). The volatilization ratio of uranium was almost unchanged at 90% up to 50 ml/min O2 (carbon amount: 15wt%). The effect of the other parameters, i.e. Cl2 flow rate, carbon amount, reaction temperature and time was examined.

KW - Chlorination

KW - Chlorine

KW - Oxygen

KW - Phosphate rocks

KW - Pyrometallurgy

KW - Thermodynamics

KW - Uranium chlorides

KW - Uranium ores

KW - Volatilization separation

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JO - Journal of Nuclear Science and Technology

JF - Journal of Nuclear Science and Technology

IS - 4

ER -

Chloride pyrometallurgy of uranium ore, (II)

Abstract

Keywords

ASJC Scopus subject areas

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