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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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.
|Uncontrolled Keywords:||Red mud;leaching;lanthanum;cerium; hydrochloric acid Rare-Earth; Scandium; Alumina; Uranium|
|Divisions:||Material Science and Technology|
|Deposited By:||Sahu A K|
|Deposited On:||24 Sep 2019 15:32|
|Last Modified:||01 Oct 2019 10:52|
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