DESCRIPTION :

Dr. Nilima Dash, a scientist, obtained her M.Sc. and M.Phil (Geology) in 2005 and 2006, respectively, from Utkal University. She pursued her Doctorate at CSIR-IMMT, Bhubaneswar, in 2008 and was awarded a Ph.D. in 2012 from Utkal University. After completing her Ph.D, she joined CSIR-IMMT, Bhubaneswar as a DST-Women Scientist in 2013 and in November 2015 joined the same Institute as Scientist “C”. She has 10 years of R&D experience in the field of Mineral characterization and Processing. She published 15 papers in international journals and 30 in national and conference proceedings. She has a role in characterizing different ores like Iron, Manganese, Bauxite, and coal. She has been awarded the IIME PERAVADHANULU AWARD for the best paper presented in the Seminar on Mineral Processing Technology-2009 and 2017. She also received the Best Poster Award at the 99th ISCA-2012 held at KIIT University, Bhubaneswar. She has been involved in various projects (Govt. and Sponsored) as a project leader and also a team member since 2016.

• Lecturer in Geology from July 2014 to November 2015 at Khallikote Cluster University, Ganjam, Odisha.
• Scientist at CSIR-IMMT since November 2015.
• Senior Scientist since November 2020

• Ore Geology,Geochemistry,Mineral & Ore Characterization,Coal Geology.

• IIME PERAVANDANALU Award for best paper presentation in MPT-2009.
• Best Poster award in ISCA-2012.
• IIME PERAVANDANALU Award for best paper presentation in MPT-2017.

• Publications in refereed journals 

  1.      Sahu, N., Nayak, D., Sahu, D.K., Dash, N., Panda, J.N., Sahu, R., Tripathy, S.K., Kapure, G.U. (2024). Preparation of Nickel-Bearing Chromite Overburden Pellets Suitable for DRI Production. Journal of Sustainable Metallurgy 10, 1199–1214. https://doi.org/10.1007/s40831-024-00842-1

  2.      Ram, N., Prusty, S., Dash, N., Das, S.K., Nayak, B. (2024). Pre-concentration of REE values from nepheline syenite rocks of western Odisha, India. Separation Science and Technology 59(6–9), 998–1009. https://doi.org/10.1080/01496395.2024.2349189

  3.      Panda, J.N., Nayak, D., Dash, N., Angadi, S.I., Rath, S.S. (2024). Insight of Reduction Roasting of a Low-Grade Goethitic Indian Iron Ore in a Rotary Kiln: Process Optimization and Characterization. Transactions of the Indian Institute of Metals 77, 553–561. https://doi.org/10.1007/s12666-023-03141-7

  4.      Nayak, D., Sahu, N., Sahu, D.K., Dash, N. (2023). Pelletization of a Low-Grade Indian Chromite Overburden: Optimizing the Induration Parameters and Understanding the Consolidation Behavior. Metallurgical and Materials Transactions B 54, 3049–3059. https://doi.org/10.1007/s11663-023-02888-0

  5.      Beura, L., Khaoash, S., Mishra, P., Dash, N., Mohapatra, B.K., Nayak, P.K. (2023). Contrasting characteristics of fireclay from Lower and Upper Gondwana Formations of Odisha, eastern India. Arabian Journal of Geosciences 16, 550. https://doi.org/10.1007/s12517-023-11655-z

  6.       Kundu, T., Das, S.K., Dash, N., Parhi, P.K., Sangurmath, P., Angadi, S.I., (2023). Characterization and gravity concentration studies on spodumene bearing pegmatites of India. Separation Science and Technology 58(13), 2331–2343. https://doi.org/10.1080/01496395.2023.2258273

  7.      Nayak, D., Ray, N., Dash, N.  Rath, S.S., Pati, S., De, P.S. (2023). An Analysis of the Influence of Drying Methods on the Drying Kinetics and Quality of Ilmenite-Coke Composite Pellets. Transactions of the Indian Institute of Metals 76, 2865–2873. https://doi.org/10.1007/s12666-023-02976-4

  8.      Das, S.K., Kundu, T., Dash, N., Angadi, S.I. (2023). Separation behavior of Falcon concentrator for the recovery of ultrafine scheelite particles from the gold mine tailings. Separation and Purification Technology 309, 123065. https://doi.org/10.1016/j.seppur.2022.123065

  9.      Bhatta, R., Dash, N. (2023). Influence of particle size on maceral and mineral distribution in Lower Gondwana coals of India. Arabian Journal of Geosciences 16, 188. https://doi.org/10.1007/s12517-023-11286-4

  10.  Hazare, G., Pradhan, S.S., Dash, N., Dwari, R.K. (2023). Studies on low-grade coking coal characterisation, flotation response and process optimisation. International Journal of Coal Preparation and Utilization, 1–23. https://doi.org/10.1080/19392699.2022.2164572

  11.  Hazare, G., Pradhan, S.S., Dash, N., Dwari, R.K. (2023). Flotation response of coal washery reject fines: Characteristics, process optimization, and oxidation. The Canadian Journal of Chemical Engineering, 1–20. https://doi.org/10.1002/cjce.24799

  12.  Nayak, D., Kundu, T., Dash, N., Angadi, S.I., Chaurasiya, S.K., Sreedhar, G.E., Subrahmanyam, T.V.S., Rath, S.S. (2023). Evaluation of VSK separation in the classification of two mineralogically different iron ore fines. International Journal of Minerals, Metallurgy and Materials 30(2), 260–270. https://doi.org/10.1007/s12613-022-2471

  13.  Ram, N., Prusty, S., Dash, N., Moharana, T., Nayak, B. (2022). Rare Earth-mineralogical and petrochemical characters of syenite rocks of Rairakhol alkaline complex, Odisha, India. Transactions of the Indian Institute of Metals 76, 809–819. https://doi.org/10.1007/s12666-022-02761-9

  14.  Bhatta, R., Dash, N., Nayak, B. (2022). Characters of liptinites in different seams of Talcher coalfield, Odisha, India. Journal of the Geological Society of India 98, 193–197. https://doi.org/10.1007/s12594-022-1958-5

  15.  Mishra, P., Pradhan, S., Khaoash, S., Mishra, P.C., Dash, N., Mohapatra, B.K. (2021). Development of nickel-rich lithiophorite in khondalite-hosted Mn-ore deposits of South Odisha, India. Arabian Journal of Geosciences 14, 2393. https://doi.org/10.1007/s12517-021-08697-6

  16.  Prusti, P., Rath, S.S., Dash, N., Meikap, B.C., Biswal, S.K. (2021). Pelletization of hematite and synthesized magnetite concentrate from a banded hematite quartzite ore: A comparison study. Advanced Powder Technology 32(10), 3735–3745. https://doi.org/10.1016/j.apt.2021.08.025

  17.  Nayak, D., Ray, N., Dash, N. Rath, S.S., Pati S., De, P.S. (2021). An Optimal Route for the Preparation of Metallized Composite Pellets from Ilmenite Concentrate. Journal of Sustainable Metallurgy 7, 1102–1115. https://doi.org/10.1007/s40831-021-00410-x

  18.  Nayak, D., Ray, N., Dash, N., Rath, S.S., Pati, S., De, P.S. (2021). Induration aspects of low-grade ilmenite pellets: Optimization of oxidation parameters and characterization for direct reduction application. Powder Technology 380, 408–420. https://doi.org/10.1016/j.powtec.2020.11.018

  19.  Prusti, P., Barik, K., Dash, N., Biswal, S.K., Meikap, B.C. (2021). Effect of limestone and dolomite flux on the quality of pellets using high LOI iron ore. Powder Technology 379, 154–164.          https://doi.org/10.1016/j.powtec.2020.10.063

  20.  Bhatta, R., Dash, N., Nayak, B. (2021). Effect of heat on organic and inorganic components in some non-coking. Transactions of the Indian Institute of Metals 74(2), 387–397. https://doi.org/10.1007/s12666-020-02168-4

  21.  Dash, N., Jena, S.K., Rath, S.S. (2021). A novel application of waste cement clinker dust in the extraction of potash from mica scraps. Resources, Conservation and Recycling 164, 105161. https://doi.org/10.1016/j.resconrec.2020.105161

  22.  Dash, N., Nayak B., Mohapatra, B.K. (2020). The supergene Mn-minerals in Gangpur Group, Eastern India and their genesis. Journal of the Geological Society of India 96, 337–348. https://doi.org/10.1007/s12594-020-1562-5

  23.  Jena, S.K., Dash, N., Angadi, S.I. (2020). A novel application of Linz-Donawitz Slag for potash recovery from waste mica scrap using chlorination roasting coupled water leaching process. Separation Science and Technology. https://doi.org/10.1080/01496395.2020.1819322

  24.  Das, A.K., Khaoash, S., Das, S.P., Mohapatra, B.K., Dash. N., Singh, S.K., Mishra, P., Mohanty, J. (2020). Processing of Low-Grade Chromite Ore for Ferroalloy Production: A Case Study from Ghutrigaon, Odisha, India. Transactions of the Indian Institute of Metals 73, 2309–2320. https://doi.org/10.1007/s12666-020-02032-5

  25.  Nayak, D., Ray, N., Dash, N., Rath, S.S., Biswal, S.K. (2020).  Reduction behaviour of Odisha Sands Complex, India ilmenite-coke composite pellets. Journal of Central South University 27(6), 1678–1690. https://doi.org/10.1007/s11771-020-4399-6

  26.  Roy, S.K., Nayak, D., Dash, N., Dhawan, N., Rath, S.S. (2020). Microwave-Assisted Reduction Roasting-Magnetic Separation Studies of Two Mineralogically Different Low-Grade Iron ores. International Journal of Minerals, Metallurgy and Materials 27, 1449–1461. https://doi.org/10.1007/s12613-020-1992-5

  27.  Nayak, D., Roy, S.K., Dash, N., Rath, S.S. (2020). Investigation on the Coal-Based Direct Reduction of Mill Scale Pellets: Statistical Modeling and Characterization Studies. Transactions of the Indian Institute of Metals 73, 691–701. https://doi.org/10.1007/s12666-020-01889-w

  28.  Roy, S.K., Nayak, D., Dash, N., Rath S.S. (2020). Influence of Coal Petrography on Microwave-assisted Carbothermic Reduction Roasting of Banded Hematite Jasper Ore, Mineral Processing and Extractive Metallurgy Review 42(4), 242–256. https://doi.org/10.1080/08827508.2020.1743290

  29.  Dash, N., Rath, S.S., Angadi, S.I. (2019). Thermally Assisted Magnetic Separation and Characterization Studies of a Low-Grade Hematite Ore. Powder Technology 346, 70–77. https://doi.org/10.1016/j.powtec.2019.02.008

  30.  Santosh, T., Angadi, S.I., Dash, N., Eswaraiah, C., Tripathy, S.K. (2019). Characterization and Comminution Studies of Low-Grade Indian Iron Ores. Mining, Metallurgy & Exploration 36(2), 303–312. https://doi.org/10.1007/s42461-019-0051-0

  31.  Pradhan, S., Mishra, P., Khaoash, S., Dash, N., Mohapatra, B.K. (2019). Gorceixite, a Ba-Al phosphate mineral, from Mn-ores of Eastern Ghats Group of Rocks, Odisha, India. Arabian Journal of Geosciences 12(12), 388. https://doi.org/10.1007/s12517-019-4563-1

  32.  Pani, S., Dash, N., Mohapatra, B.K., Singh, S.K. (2019). Siliceous Manganese Ore from Eastern India: A Potential Resource for Ferrosilicon-Manganese Production. High Temperature Materials and Processes 38. https://doi.org/10.1515/htmp-2018-0081

  33.  Jena, S.K., Dash, N., Samal, A.K., Misra, P. K. (2019). Competency of chlorination roasting coupled water leaching process for potash recovery from K-feldspar: Mechanism and kinetics aspects. Korean Journal of Chemical Engineering 36(12), 2060–2073.  https://doi.org/10.1007/s11814-019-0393-9

  34.  Jena, S.K., Dash, N., Rath, S.S. (2019). Effective utilization of lime mud for the recovery of potash from mica scraps. Journal of Cleaner Production 231, 64–76. https://doi.org/10.1016/j.jclepro.2019.05.23
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• Reduction roasting and microwave heating of some difficult to treat iron ores for the production of pellet feed concentrate.
• ROM characterization for 6 MTPA mechanized production and evacuation for Kurmitar Iron Ore Mines, Sundargarh, Odisha.
• Coal Quality Analysis of Dipside Manoharpur Coal Block, Odisha.
• Characterization and beneficiation studies on hematite iron ore from sagasahi mines,Odisha.
• Recovery of Tungsten values from Hutti Gold mine tailings: bench scale studies,pilot scale studies, process flow sheet development.
• Quality Assessment for referee samples of Indian Power Coal.