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Featured researches published by Rekha Panda.


TMS Annual Meeting & Exhibition | 2018

Recovery of Manganese from Scrap Batteries of Mobile Phones

Deblina Dutta; Rekha Panda; Manis Kumar Jha; Sudha Goel

Present work is focused on the recovery of Mn as a value added product from the leach liquor of scrap lithium-ion batteries (LIBs) of mobile phones by the method of precipitation. The LIBs were crushed and beneficiated by wet scrubbing method to separate cathodic material, plastic and metallic parts. The cathodic material was found to contain 11.3% Mn, 10% Co, 2.4% Cu and 2.4% Li. The cathodic material was processed for leaching under the optimized condition developed by our group at CSIR-NML. Solvent extraction method was used to extract acid using organic extractant Tris(2-ethylhexyl)amine (TEHA) in order to reduce the consumption of alkali required during precipitation studies. The acid free leach liquor was subjected to purification for removal of Fe, Li, Cu and Co as precipitate at different pH. Systematic precipitation studies were carried in batch and continuous mode to recover Mn as Mn(OH)2 at pH ~10 which was further roasted at 450 °C for 4 h to get pure Mn3O4.


Hydrometallurgy | 2016

Review on hydrometallurgical recovery of rare earth metals

Manis Kumar Jha; Archana Kumari; Rekha Panda; Jyothi Rajesh Kumar; Kyoungkeun Yoo; Jin Young Lee


Minerals Engineering | 2015

Process development to recover rare earth metals from monazite mineral: A review

Archana Kumari; Rekha Panda; Manis Kumar Jha; J. Rajesh Kumar; Jin Young Lee


Journal of Industrial and Engineering Chemistry | 2014

Leaching of rare earth metals (REMs) from Korean monazite concentrate

Rekha Panda; Archana Kumari; Manis Kumar Jha; Jhumki Hait; Vinay Kumar; J. Rajesh Kumar; Jin Young Lee


Separation and Purification Technology | 2015

Recovery of copper and recycling of acid from the leach liquor of discarded Printed Circuit Boards (PCBs)

Pankaj Kumar Choubey; Rekha Panda; Manis Kumar Jha; Jae-chun Lee; D.D. Pathak


Journal of Industrial and Engineering Chemistry | 2015

Thermal treatment for the separation of phosphate and recovery of rare earth metals (REMs) from Korean monazite

Archana Kumari; Rekha Panda; Manis Kumar Jha; Jin Young Lee; J. Rajesh Kumar; Vinay Kumar


Hydrometallurgy | 2016

Extraction of lanthanum and neodymium from leach liquor containing rare earth metals (REMs)

Rekha Panda; Manis Kumar Jha; Jhumki Hait; Girendra Kumar; Ram Janam Singh; Kyoungkeun Yoo


Rare Metal Technology 2014 | 2014

Recovery of Rare Earth Metals (REMs) from Primary and Secondary Resources: A Review

Vinay Kumar; Manis Kumar Jha; Archana Kumari; Rekha Panda; J. Rajesh Kumar; Jin Young Lee


Separation and Purification Technology | 2018

Close loop separation process for the recovery of Co, Cu, Mn, Fe and Li from spent lithium-ion batteries

Deblina Dutta; Archana Kumari; Rekha Panda; Soni Jha; Divika Gupta; Sudha Goel; Manis Kumar Jha


Sustainable Materials and Technologies | 2018

Sustainable recycling process for metals recovery from used printed circuit boards (PCBs)

Deblina Dutta; Rekha Panda; Archana Kumari; Sudha Goel; Manis Kumar Jha

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Manis Kumar Jha

Council of Scientific and Industrial Research

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Archana Kumari

Indian Institutes of Technology

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J. Rajesh Kumar

Sri Venkateswara University

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Jhumki Hait

Council of Scientific and Industrial Research

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Vinay Kumar

Indian Institute of Remote Sensing

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Sudha Goel

Indian Institute of Technology Kharagpur

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Deblina Dutta

Indian Institute of Technology Kharagpur

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Kyoungkeun Yoo

Korea Maritime and Ocean University

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D.D. Pathak

Indian School of Mines

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Divika Gupta

Council of Scientific and Industrial Research

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