Chloride leaching of lanthanum and cerium from Indian red mud and metal separation studies
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
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| Title |
Chloride leaching of lanthanum and cerium from Indian red mud and metal separation studies
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| Creator |
Abhilash,
Meshram, Pratima Sinha, S Pandey, B D Kumari, V K Kar, S |
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| Subject |
Minerals and Mining
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| Description |
Bench-scale experiments were conducted to recover lanthanum and cerium from Indian red mud in a hydrochloric acid medium. The method includes acid leaching of red mud pulp and subsequent liquid-liquid extraction of the leached metals with different organic extract ants, in order to establish the technical feasibility of extraction and separation simultaneously. The maximum extraction of 88.5% La was achieved at 95 degrees C, using 1 M HCl, S/L ratio - 1/100 in 1 h with 200 rpm agitation rate. At this temperature, cerium recovery (99.9%) was found to be maximum. The maximum recovery of cerium (99.9%) can be achieved even at 55 degrees C, while the recovery of lanthanum lowered to 78.5% under same conditions. Liquid-liquid extraction of leached metals was tested to be complete and selective using Cyanex 923, as against Cyanex 301 and Cyanex 272.
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| Publisher |
Edp Sciences S A
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| Date |
2019-02
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| Type |
Article
PeerReviewed |
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| Relation |
https://doi.10.1051/metal/2018090
http://eprints.nmlindia.org/7908/ |
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| Identifier |
Abhilash, and Meshram, Pratima and Sinha, S and Pandey, B D and Kumari, V K and Kar, S (2019) Chloride leaching of lanthanum and cerium from Indian red mud and metal separation studies. Metallurgical Research & Technology, 116(2) (IF-0.641).
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