Dr. Natarajan Rajamani

Raja Ramanna Fellow, Department of Atomic Energy

Areas of Interest:

Chemical Plant Designs, Solvent extraction equipment and process designs, Nuclear energy economics.


Radiochemistry, Radiological safety, Radiochemical plant Design and operation

Consultancy Areas:

Spent Nuclear Fuel Reprocessing, Nuclear Energy economics, Radiological Safety and instrumentation.


Sector Associated With:


Sectors Interested to Offer Service:

R&D Organizations, Government (including funding agencies)

Major Professional Contributions:

Dr. R. Natarajan, joined the Department of Atomic Energy in 1975 and held the post of Director of Reprocessing Group (RpG) and Project Director of Fast Reactor Fuel Cycle Facility (FRFCF) in IGCAR. Under his leadership, the CORAL facility, for establishing the process technology for the reprocessing of fast reactor fuels, was designed, erected and commissioned. He led the team which has successfully completed the reprocessing of fast reactor spent fuel, with a burn-up of as high as 155 GWd/t with plutonium rich fuels, which is an international benchmark. He was also responsible for the R&D activities of fast reactor fuel reprocessing and setting up of demonstration as well as the commercial fast reactor spnet fuel reprocessing plants. His specialization is in the design process flow sheets and plant design. He has also experience in the design and operation of Thorium-Uranium fuel cycles. He has participated in the irradiated thorium fuel reprocessing campaigns at the Reproces sing Development Laboratory and the Uranium recovered is used as fuel for the reactor "KAMINI'. He has expertise in solvent extraction process modeling, extraction equipment design, design of feed clarification systems of high active solutions, acid recovery systems, system designs of radioactive offgas circuits and ventilation design of radiochemical plants. He has over hundred technical presentations and publications to his credit.

Professional Experience:

  • Joined DAE in 1976;
  • Carried out several R&
  • D projects on Nuclear Chemical Engineering;
  • Set up reprocessing plants in India;
  • held various positions during the carrier- retired as Director of Reprocessing Group and
  • Project Director of Fast Reactor Fuel Cycle Facility in 2015;.


Spent Nuclear Fuel Reprocessing, Solvent Extraction process and equipment, Actinide chemistry, Radio chemical Plant designs.


Contact Information


Raja Ramanna Fellow, Department of Atomic Energy, FRFCF, IGCAR, Kalpakkam-603102; +91 44 27480099

Flat No. F2, Salims Marvelous Enclave, 37, 5th Street, Alagiri Nagar, Vadapalani, Chennai-600 026;
+91 44 42856273; +91 9444901291

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.



  • B.E in Chemical Engineering (1975);
  • Post Graduate
  • Training in Nuclear Engineering in 1976;
  • PhD in
  • Chemical Engineering in 2013


Awards and Major Professional Recognitions

  • NOCIL Award for Excellence in Design and Development of Process Plant and Equipment for the year 2005 from The Institution of Chemical Engineers, Kolkata, 2005
  • INS Award from the Indian Nuclear Society for the year 2006
  • Vasvik Award for Excellence in Industrial Reseach in the area of Chemical Sciences and Technology for the year 2014

Link to Website

INAE Section Affiliated To : Section IX: Energy Engineering

Year of Election to Fellowship: 2012

Year of Birth: 1953