BIO DATA OF DR - Indian Institute of Technology Bhubaneswar

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Hyderabad Campus. 11. Membership of Professional Bodies Life Memebr, Indian Institute of Metals, Kolkata. Life Member, Indian Institute of Mineral Engineers, Jamshedpur. Life Member, Indian Nuclear Society, Mumbai. 12. Major Events Organized Organized National level one-day Discussion Meeting on ‘Mineral Beneficiation in India: Present Status and Future Needs (MINBEN-97), in the capacity of CONVENER at Hyderabad on November 24, 1997 under the aegis of Bureau of Research in Nuclear Studies (BRNS). Organized International Seminar on Mineral Processing Technology (MPT-2001) in the capacity of CONVENER, with collaboration Ore Dressing Section, BARC and National Mineral Development Corporation Limited, under the aegis of Indian Institute of Mineral Engineers at Hyderabad during February 15-17, 2001. 13. Awards and Other honours Scored a CPI 10 (out of 10) in the M.Tech course at Indian Institute of Technology, Kanpur. Hargopal Memorial Prize in Metallurgical Engineering for Best Thesis in Ore Dressing in the Master’s Programme from Indian Institute of Technology, Kanpur in the year 1988. Khare Award for the Best Paper entitled, “Studies on Flotation of Uranium Values from Domiasiat Ore” by A.K.Singh, N.P.H.Padmanabhan, U.Sridhar and N.K.Rao, presented in the National Seminar on Research and Process Development in Mineral Preparation, organized by Indian Institute of Mineral Engineers, Jamshedpur, 1992. Mineral Beneficiation Award for the contribution in the field of mineral processing, received from Indian Institute of Mineral Engineers, during the International Seminar on Mineral Processing Technology, MPT-2006, Chennai, 2006. Group Achievement Award 2008 from Department of Atomic Energy, Government of India for process development for the recovery of uranium from the Tummalapalle ore, Cuddappah District, Andhra Pradesh, using an innovative alkaline pressure leaching process. 14. Publications Author and co-author of 100 technical articles in the categories (i) Publications in refereed national international journals, (ii) Presented in various symposia and published in the proceedings and (iii) Reports of investigations, BARC Internal Reports etc. List of selected recent publications is enclosed as Annexure 15. My interests in the last Five years before retirement During the past 5 years, I have spearheaded the Ore Dressing Section (ODS) under BARC 4
and Ore Dressing Group (ODG) under AMD in very Projects of importance and great relevance to our Department. Since attempts are being made to open new mines outside Singhbhum area and since these ore have characteristics much different from the Jaduguda ore, the technology has to be developed for the extraction of uranium from these ores by laboratory studies follwed by pilot plant studies to demonstrate the process and also to generate scale up and other process engineering parameters. For this purpose, AMD is setting up a Technology Demonstration Pilot Plant at UCIL Premises, Jaduguda and I am the main Coordinator for the Project. The Officers of ODG are posted at TDPP for three months on rotational basis. I am frequently visiting TDPP, Jaduguda and closely monitoring the progress of the Project. The Tummalapalle uranium ore deposit, discovered by AMD in the late eighties but discarded due to the technological difficulties in the uranium extraction arising due to the complicated mineralogy of the ore and nature of uranium mineralization was revisited. I was guiding and coordinating the laboratory investigations carried out by our Group. The ore contained nearly 83% carbonate gangue whichmade alkaline leaching technique mandatory. Although it was difficult to obtain leachabilities higher than 75% from this ore, experiments by our Group established that it is possible to precipitate uranium values directly from the leach liquor, without going through ion exchange or solvent extraction stages. For this, a cross current leach-filter-counter current wash technique (CCLFCCW) was developed. On the laboratory scale the tests have been quite encouraging. I have carried out the CCLFCCW initially in the laboratory in locked cycle manner till the steady state is attained. The experimental results have been critically analyzed and evaluated before any recommendation was made. In view of the need to improve the resource position of the raw material, uranium for our ongoing power programme, this process is being tested on a large scale at the Technology Demonstration Pilot Plant (TDPP) with the active involvement of BARC, AMD, UCIL and NPCIL. I am a key member from AMD looking after the Project. This process also envisages complete recirculation and reutilization of the reagents making it a zero liquor waste process, which will make the process environmentally attractive. I am a Member of the Tummalapalle WorkGroup constituted specially for monitoring the investigations and for evaluating the techno-economic feasibility of extraction of uranium values from the Tummalapalle ore. In addition, I have carried out leachability studies on ore samples from Gogi, Lambapur, Peddagattu etc. I have also studied the feasibility of recovering the heavy And industrial minerals from the beach sands of Kalingapatnam, Bhimlipatnam, Bhavanapadu and Srikoormam- all located in the eastern coast of Andhra Pradesh. I have been always interested in modeling and simulation of the beneficiation process and I have synthesized flow sheets for pre-concentration, concentrate upgradation and mineral separation using numerical modling and process simulation. The simulation date has been verified a number of times in the laboratory studies. I have also been exposed to the recent management concepts during a sponsored executive program at Jamnalal Bajaj Institue of Management, Mumbai to improve the organizational effectiveness by motivation and leadership. I was teaching the Mineral Engineering Course at the BARC Training School-AMD Hyderabad Camus to the Trainee-Officers 16. Recent Publications - Given in Annexure 5
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BIO DATA OF DR - Indian Institute of Technology Bhubaneswar

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