Preconcentration of rare earth elements from Iranian monazite ore by spiral separator using multi-response optimization method

The present work dealt with the preconcentration of rare earth elements in Saghand ore （Yazd province, Iran） which was achieved by Humphrey spiral using orthogonal optimization method after scrubbing the sample at 45% solid pulp density for 30 min. The pulp was diluted and was fed to a Humphrey spir...

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Published inInternational journal of mining science and technology Vol. 24; no. 1; pp. 117 - 121
Main Authors Khanchi, Ali Reza, Sedighi, Hassan, Ansar, Sheida, Fasihi, Javad
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2014
Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI, Tehran 11365-8486, Iran
Subjects
Density
Feed rate
Monazite
Optimization
Orthogonal arrays
Preconcentration
Process parameters
Rare earth elements
Spiral
Spirals
Taguchi method
Upgrading
伊朗
分离富集
固体饲料
正交优化
独居石
矿石
稀土元素
螺旋
Preconcentration
Spiral
Monazite
Optimization
Taguchi method
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Summary:The present work dealt with the preconcentration of rare earth elements in Saghand ore （Yazd province, Iran） which was achieved by Humphrey spiral using orthogonal optimization method after scrubbing the sample at 45% solid pulp density for 30 min. The pulp was diluted and was fed to a Humphrey spiral for upgrading. The process parameters considered were feed size, feed solids and feed rate, and Taguchi＇s L9 （34） orthogonal array （OA） was selected for optimization of the process. The results show that the feed rate and feed size were more significant than the other operation parameters of the process. It was also found that under optimal conditions, the concentrate grade of rare earth elements increased from 2860× 10^-6 to 6050× 10^-6 and recovery reached to 58%.
Bibliography:The present work dealt with the preconcentration of rare earth elements in Saghand ore （Yazd province, Iran） which was achieved by Humphrey spiral using orthogonal optimization method after scrubbing the sample at 45% solid pulp density for 30 min. The pulp was diluted and was fed to a Humphrey spiral for upgrading. The process parameters considered were feed size, feed solids and feed rate, and Taguchi＇s L9 （34） orthogonal array （OA） was selected for optimization of the process. The results show that the feed rate and feed size were more significant than the other operation parameters of the process. It was also found that under optimal conditions, the concentrate grade of rare earth elements increased from 2860× 10^-6 to 6050× 10^-6 and recovery reached to 58%.
32-1827/TD
Khanchi Ali Reza , Sedighi Hassan, Ansar Sheida, Fasihi Javad（ Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOL Tehran 11365-8486, lran）
Monazite Taguchi method Spiral Preconcentration Optimization
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:2095-2686
DOI:10.1016/j.ijmst.2013.12.020