
जवाहरलाल नेहरू एल्युमिनियम अनुसंधान विकास एवं अभिकल्प केंद्र
स्वायत्त निकाय , खान मंत्रालय के तहत, भारत सरकार

पेटेंट : स्वीकृत = 28 : दायर = 21 : कॉपीराइट : स्वीकृत = 2

Click here for Patent List of HINDALCO..

Click here for Patent List of NALCO..

Patents Granted

1. Title of Patent :

An improved heat treatment process for production of heat resistant Al-Zr alloy wire for overhead conductor

Application Number : Granted vide no. 533417 [2024-25]
Date of grant : 17/04/2024
Inventors : R N Chouhan, P Mahendiran, VNSU Viswanath Ammu, Suman Mukherjee Kalyani Humne, Anupam Agnihotri, (JNARDDC) & D Lokeswara Rao (NFTDC)

2. Title of Patent :

A process for conversion of saprolite into refractory aggregate

Application Number : Granted vide no. 507474 [2023-24]
Date of grant : 06/02/2024
Inventors : P G Bhukte, S P Puttewar, M T Nimje, M J Chaddha, M Najar, U Singh and A Agnihotri

3. Title of Patent :

A process for removal of iron oxide, Silica and enrichment of alumina in ferruginous, siliceous and aluminous Laterite by physical separation process

Application Number : Granted vide no. 483133 [2023-24]
Date of grant : 15/12/2023
Inventors : Pravin Bhukte, S P Puttewar, Anupam Agnihotri

4. Title of Patent :

Process for revitalization of high alumina castables from aluminium dross

Application Number : Granted vide no. 471016 [2023-24]
Date of grant : 21/11/2023
Inventors : Dr Upendra Singh, M T Nimje, Shoeb Ansari, Anupam Agnihotri, (JNARDDC) & Shri ASP Mishra (VEDANTA)

5. Title of Patent :

A process for preparation of aluminium hydroxide with low soda content

Application Number : Granted vide no. 455707 [2023-24]
Date of grant : 29/09/2023
Inventors : Dr Suchita Rai, M. T. Nimje, A Agnihotri

6. Title of Patent :

A process for delamination of a multi-layered packaging material and selective recovery of aluminium metal values

Application Number : Granted vide no. 427584 [2023-24]
Date of grant : 29/03/2023
Inventors : Mohamed Najar, Amrita Karan, Paresh Nageshwar, Ram Chouhan, Anupam Agnihotri

7. Title of Patent :

Partially Lateritised Khondalite based ceramic proppant and its preparation

Application Number : Granted vide no. 427235 [2022-23]
Date of grant : 28/03/2023
Inventors : Pravin Bhukte, Suresh Puttewar, Mukesh Chaddha, Anupam Agnihotri, Gopal Daware (JNARDDC), Bhimsen Pradhan, Bandopadhyay P(NALCO)

8. Title of Patent :

A Process For Selective Enrichment And Separation Of Alumina And Silica

Application Number : Granted vide no. 427093 [2022-23]
Date of grant : 27/03/2023
Inventors : Mohamed Najar, Amrita Karan, Paresh Nageshwar, Mukesh Chaddha, Anupam Agnihotri

9. Title of Patent :

A Process for selective reduction of Al2O3, SiO2, Na2O and CaO in reed mud for enrichment of Fe2O3

Application Number : Granted vide no. 421167 [2022-23]
Date of grant : 10/02/2023
Inventors : Dr Mohamed Najar, Shoeb Ansari, Shama Wadsariya, Kiran Janbandhu, Rajashekhar Rao, S P Puttewar and Anupam Agnihotri

10. Title of Patent :

A Light Weight Foamed Geopolymer (LWFGEOP) and its preparation

Application Number : Granted vide no. 409005 [2022-23]
Date of grant : 12/10/2022
Inventors : Dr Mohamed Najar, Mukesh Chaddha, Pravin Bhukte, Numanuddin Azad, Shama Wadsariya, Suresh Puttewar, Anupam Agnihotri (Jnarddc) And Saket Jain ( Swarnalatha Holdings)

11. Title of Patent :

A process for selective leaching of iron from alumina hydrate

Application Number : Granted vide no. 407793 [2022-23]
Date of grant : 28/09/2022
Inventors : Dr Mohamed Najar, M T Nimje, S P Puttewar, Anupam Agnihotri (JNARDDC) & Subrat Kar, V Krishna Kumari P K Behera, (NALCO)

12. Title of Patent :

A process for conversion of Hazardous 1st Cut SPL Waste of Aluminium Industries into Non Hazardous Material by Converting Inorganic Toxic Cyanide to Non Toxic Species by Selective Heat Treatment and Recovery of Sodium, Fluoride and Carbon Value

Application Number : Granted vide no. 407276 [2022-23]
Date of grant : 21/09/2022
Inventors : M T Nimje, Mohamed Najar Anupam Agnihotri, (JNARDDC) & A S P Mishra (VEDANTA)

13. Title of Patent :

Process for preparation of low ferric alum from waste or low grade aluminium dross

Application Number : Granted vide no. 406384 [2022-23]
Date of grant : 12/09/2022
Inventors : Dr Upendra Singh, J Mukhopadhyay, (JNARDDC) & Binuta Patra and P Bandopadhyay (NALCO)

14. Title of Patent :

A PROCESS FOR PREPARING SMELTER GRADE ALUMINA

Application Number : Granted vide no. 404896 [2022-23]
Date of grant : 29/08/2022
Inventors : S B Rai, M J Chaddha, M T Nimje, R J Sharma, K J Kulkarni & K R Rao (JNARDDC)

15. Title of Patent :

A process for rapid analysis of reactive silica in bauxite and laterite based on selective autogenous dissolution at ambient temperature:

Application Number : Granted vide no. 391928 [2021-22]
Date of grant : 14/03/2022
Inventors : Dr Mohamed Najar,Shama Wadsariya, Amrita Karn, Prajakta Ogale,Dr S P Puttewar and Dr Anupam Agnihotri (JNARDDC)

16. Title of Patent :

Determination of calcium in alumina hydrate, calcined alumina and process liquor;

Application Number : Granted vide no. 378743 [2021-22]
Date of grant : 06/10/2021
Inventors : Dr Mohamed Najar, Mr M T Nimje, Dr S P Puttewar, Dr Anupam Agnihotri (JNARDDC) & Mr Subrat Kar, Mr V Krishna Kumari and Mr P K Behera (NALCO)

17. Title of Patent :

Development of process for selective in-situ dissolution of alumina & silica bearing mineral phases in bauxite at room temperature for geo–analytical application;

Application Number : Granted vide no. 340231[2020-21]
Date of grant : 02/07/2020
Inventors : Dr. Mohamed Najar, Dr. P G Bhukte, Dr. U Singh, Mr. M T Nimje, Dr. SP Puttewar, Dr. A Agnihotri(JNARDDC)

18. Title of Patent :

Liquidus /Superheat Temperature Measurement System for Molten Cryolite Bath

Application Number : Granted vide no. 334205 [2019-20]
Date of grant : 09/03/2020
Inventors : Mr R J Sharma,Mr V K Jha (JNARDDC), Mr Binuta Patra (NALCO), Mr P Bandopadhyay (NALCO)

19. Title of Patent :

A process for preparing of glass ceramic tiles

Application Number : Granted vide no. 326108[2019-20]
Date of grant : 28/11/2019
Inventors : Mr. MT Nimje, Dr. Mohamed Najar, Mr J Mukhopadhyay (JNARDDC) & Mr B K Satpathy (NALCO)

20. Title of Patent :

Controlled heat treatment process for destruction of leachable toxic cyanide in first cut aluminium spent pot lining materials

Application Number : Granted vide no. 301579[2018-19]
Date of grant : 27/09/2018
Inventors : Mr. MT Nimje, Dr. Mohamed Najar (JNARDDC) & Mr. Binuta Patra (NALCO)

21. Title of Patent :

Process for preparation of light weight Foamed bricks (LWFBs) utilizing red mud and fly ash admixture

Application Number : Granted vide no. 292333 [2017-18]
Date of grant : 30/01/2018
Inventors : Dr. Mohamed Najar,Mr. MT Nimje, Mr. J Mukhopadhyay, (JNARDDC) and Mr. BK. Satpathy (NALCO).

Copyrights granted

1. Software for real-time determination of liquidus, operating and superheat temperature of molten cryolite bath

Application Number : SW-9651/2017 [2017-18]
Date of grant : 13/11/2017
Inventors : Mr V K Jha & Mr R J Sharma

2. Software for cost optimization of recycling of different types of aluminum scraps for production of alloy of desired composition” has been granted

Application Number : SW-10009/2018 [2017-18]
Date of grant : 13/01/2018
Inventors : Mr V K Jha & Mr Manishkar

LIST OF PATENTS WITH NAMES OF PI AND TEAM

1. Title of Patent :

A process for the preparation of fine alumina trihydrate (ATH) from low-grade bauxite with generation of high-iron containing bauxite residue."

Application Number : 202421091450 [ 2024-25]
Date of filling : 23/11/2024
Inventors : Suchita Rai, Prachi Pradhan, Megha Panchal, Suraj Tripathy, and A Agnihotri

2. Title of Patent :

"Synthesis of alumina having high purity

Application Number : 202421098159 [ 2024-25]
Date of filling : 12/12/2024
Inventors : Priyanka Nayar, Pooja Yadav, Sandeep Kowe, Upendra Singh, A Agnihotri, and Lavudya Naresh, NALCO

3. Title of Patent :

Synthesis of spray dried nano 8YSZ plasma sprayable powder and plasma sprayed thermal barrier coating

Application Number : 202241011004 [2021-22]
Date of filling : 11/03/2022
Inventors : Dr S. Gowtham Sanjai & Parvati Ramaswamy, (Christ University); Dr Priyanka Nayar, Dr Upendra Singh & Dr Anupam Agnihotri (JNARDDC)

4. Title of Patent :

A method to obtain upto 150µ thick nano-structure A-Al2O3 coatings by plasma spraying

Application Number : 202241005098 [2021-22]
Date of filling : 31/01/2022
Inventors : Dr S. Gowtham Sanjai & Parvati Ramaswamy, (Christ University); Dr Priyanka Nayar, Dr Upendra Singh & Dr Anupam Agnihotri (JNARDDC)

5. Title of Patent :

A Process for selective separation and recovery of alpha alumina and silica

Application Number : 202021022813 [2020-21]
Date of filling : 31/05/2020
Inventors : Dr Mohamed Najar, Ms Karn Amrita,Mr Paresh Nageshwar, Mr Mukesh Chaddha, Dr Anupam Agnihotri

6. Title of Patent :

A process for delamination of laminated multi-layer packaging industrial refuse and recovery of Aluminium at ambient conditions

Application Number : 201921050658 [2019-20]
Date of filling : 08/12/2019
Inventors : Dr Mohamed Najar, Ms Karn Amrita,Mr Paresh Nageshwar, Mr R N Chouhan, Dr Anupam Agnihotri

7. Title of Patent :

A process for removal of iron oxide, silica and enrichment of alumina in ferruginous, siliceous and aluminous laterite by physical separation process

Application Number : 201921008361 [2018-19]
Date of filling : 04/03/2019
Inventors : Dr Pravin Bhukte,Dr S P Puttewa, Dr Anupam Agnihotri

8. Title of Patent :

A process for preparing smelter grade alumina

Application Number : 201821049247 [2018-19]
Date of filling : 27/12/2018
Inventors : Dr S B Rai, Mr M J Chaddha, Mr M T Nimje, Mr R J Sharma, Mr K J Kulkarni,Mr K R Rao

9. Title of Patent :

A process for rapid analysis of reactive silica in bauxite and laterite based on selective autogenous dissolution at ambient temperature

Application Number : 201821024434 [2018-19]
Date of filling : 30/06/2018
Inventors : Dr Mohamed Najar, Ms Shama Wadsariya, Ms Amrita Karn, Ms Prajakta Ogale, Dr S P Puttewar and Dr Anupam Agnihotri

10. Title of Patent :

Partially Lateritised Khondalite based Ceramic Proppant and its preparation

Application Number : 201821003354 [2017-18]
Date of filling : 31/01/2018
Inventors : Dr Pravin Bhukte, Dr SP Puttewar, Mr M J Chaddha, Dr Anupam Agnihotri, Mr Gopal Daware(JNARDDC) & Mr B Pradhan, Mr P.Bandopadhyay (NALCO)

11. Title of Patent :

A process for conversion of Hazardous 1st Cut SPL Waste of Aluminium Industries into Non Hazardous Material by Converting Inorganic Toxic Cyanide to Non Toxic Species by Selective Heat Treatment and Recovery of Sodium, Fluoride and Carbon Value

Application Number : 201721040906 [2017-18]
Date of filling : 16/11/2017
Inventors : Mr M T Nimje, Dr Mohamed Najar, Dr Anupam Agnihotri(JNARDDC) & Mr A S P Mishra (VEDANTA)

12. Title of Patent :

Method and Apparatus for Onsite Measurement of Bath Ratio, Alumina Concentration, Liquidus Temperature and Operating Temperature of Aluminium Electrolysis Bath

Application Number : 201721040908 [2017-18]
Date of filling : 16/11/2017
Inventors : Mr V K Jha, Mr Rajendra J Sharma, Dr Upendra Singh, Dr Anupam Agnihotri, Ms Shweta Dhamande, Mr Manish Kar

13. Title of Patent :

Development of process for revitalization of high alumina castables from residual Aluminium dross

Application Number : 201721037172 [2017-18]
Date of filling : 20/10/2017
Inventors : Dr Upendra Singh, Mr M T Nimje, Mr Shoeb Ansari, Dr Anupam Agnihotri(JNARDDC) & Mr A S P Mishra (VEDANTA)

14. Title of Patent :

An improved heat treatment process for production of heat resistant Al-Zr alloy wire for overhead conductor

Application Number : 201721032156 [2017-18]
Date of filling : 12/09/2017
Inventors : Mr R N Chouhan, Mr P Mahendiran, Mr VNSU Viswanath Ammu, Mr P R Dungore, Mr Suman Mukherjee, Mr Kalyani Humne, Dr Anupam Agnihotri (JNARDDC) & Mr D Lokeswara Rao (NFTDC)

15. Title of Patent :

A Process for selective reduction of Al2O3, SiO2, Na2O and CaO in reed mud for enrichment of Fe2O3

Application Number : 201721022916 [2017-18]
Date of filling : 30/06/2017
Inventors : Dr Mohamed Najar, Mr Shoeb Ansari, Ms Shama Wadsariya, Ms Kiran Janbandhu, Mr Rajashekhar Rao, Dr S P Puttewar and Dr Anupam Agnihotri

16. Title of Patent :

A light weight foamed geopolymer (LWFGEOP) and its preparation

Application Number : 201621038525 [2017-18]
Date of filling : 10/11/2017
Inventors : Dr Mohamed Najar, Mr Mukesh Chaddha, Dr Pravin Bhukte, Mr Naumanuddin Azad, Ms Shama Wadsariya, Dr S P Puttewar, Dr Anupam Agnihotri (JNARDDC) & Mr Saket Jain (Swarnalatha Holding)

17. Title of Patent :

A process for selective leaching of iron from alumina hydrate

Application Number : 201621038530 [2016-17]
Date of filling : 13/11/2016
Inventors : Dr Mohamed Najar, Mr M T Nimje, Dr S P Puttewar, Dr Anupam Agnihotri (JNARDDC) & Mr Subrat Kar, Mr V Krishna Kumari, Mr P K Behera (NALCO)

18. Title of Patent :

Determination of calcium in alumina hydrate, calcined alumina and process liquor

Application Number : 201621038529 [2016-17]
Date of filling : 13/11/2016
Inventors : Dr Mohamed Najar, Mr M T Nimje, Dr S P Puttewar, Dr Anupam Agnihotri (JNARDDC) & Mr Subrat Kar, Mr V Krishna Kumari, Mr P K Behera (NALCO)

19. Title of Patent :

A process for preparation of aluminium hydroxide with low soda content.

Application Number : 201621005485 [2015-16]
Date of filling : 17/02/2016
Inventors : Dr S B Rai, Mr M T Nimje and Dr Anupam Agnihotri

20. Title of Patent :

Development of process for conversion of Saprolite into refractory aggregate

Application Number : 3585/MUM/2014 [2015-16]
Date of filling : 12/11/2015
Inventors : Dr Pravin Bhukte, Dr S P Puttewar, Mr M T Nimje, Mr M J Chaddha, Dr Mohamed Najar, Dr U Singh and Dr Anupam Agnihotri

21. Title of Patent :

Development of process for selective in-situ dissolution of alumina & silica bearing mineral phases in bauxite at room temperature for geo –analytical application

Application Number : 3582/MUM/2014 [2015-16] & Granted vide no. 340231[ 2020-21 ]
Date of filling : 12/11/2015 & 02.07.2020
Inventors : Dr Mohamed Najar, Dr Pravin Bhukte, Dr U Singh, Mr M T Nimje, Dr S P Puttewar and Dr Anupam Agnihotri

22. Title of Patent :

Liquidus /Superheat Temperature Measurement System for Molten Cryolite Bath

Application Number : 995/KOL/2013 [2013-14] & Granted vide no. 334205[ 2019-20 ]
Date of filling : 28/08/2013 & 09/03/2020
Inventors : Mr R J Sharma, Mr V K Jha (JNARDDC), Mr Binuta Patra and Mr P Bandopadhyay (NALCO)

23. Title of Patent :

Process for preparation of low ferric alum from waste or low grade aluminium dross

Application Number : 280/KOL/2013 [2012-13]
Date of filling : 12/03/2013
Inventors : Dr Upendra Singh, Dr J Mukhopadhyay (JNARDDC) & Mr Binuta Patra and Mr P Bandopadhyay (NALCO)

24. Title of Patent :

Controlled heat treatment process for destruction of leachable toxic cyanide in first cut aluminium

Application Number : 1381/KOL/2012 [2012-13] & Granted vide no. 301579 [2018-19]
Date of filling : 03/12/2012 & 27/09/2018
Inventors : Mr M T Nimje, Dr Mohamed Najar. (JNARDDC) & Mr Binuta Patra (NALCO)

25. Title of Patent :

Process for preparation of light weight Foamed bricks (LWFBs) utilizing red mud and fly ash admixture

Application Number : 1051/KOL/2011 [2011-12] & Granted vide no. 292333 [2017-18]
Date of filling : 10/08/2011 & 30/01/2018
Inventors : Dr Mohamed Najar, Mr M T Nimje, Dr J Mukhopadhyay, (JNARDDC) and Mr B K Satpathy (NALCO)

26. Title of Patent :

Process for preparation of glass ceramic tiles utilizing red mud as the main base material

Application Number : 1045/KOL/2011 [2011-12]
Date of filling : 08/08/2011
Inventors : Mr M T Nimje, Dr Mohamed Najar, Dr J Mukhopadhyay, (JNARDDC) and Mr B K Satpathy (NALCO)

पेटेंट : स्वीकृत = 28 : दायर = 21 : कॉपीराइट : स्वीकृत = 2

Click here for Patent List of HINDALCO..

Click here for Patent List of NALCO..

1. Title of Patent : An improved heat treatment process for production of heat resistant Al-Zr alloy wire for overhead conductor

Application Number : Granted vide no. 533417 [2024-25]

Date of grant : 17/04/2024

Inventors : R N Chouhan, P Mahendiran, VNSU Viswanath Ammu, Suman Mukherjee Kalyani Humne, Anupam Agnihotri, (JNARDDC) & D Lokeswara Rao (NFTDC)

2. Title of Patent : A process for conversion of saprolite into refractory aggregate

Application Number : Granted vide no. 507474 [2023-24]

Date of grant : 06/02/2024

Inventors : P G Bhukte, S P Puttewar, M T Nimje, M J Chaddha, M Najar, U Singh and A Agnihotri

3. Title of Patent : A process for removal of iron oxide, Silica and enrichment of alumina in ferruginous, siliceous and aluminous Laterite by physical separation process

Application Number : Granted vide no. 483133 [2023-24]

Date of grant : 15/12/2023

Inventors : Pravin Bhukte, S P Puttewar, Anupam Agnihotri

4. Title of Patent : Process for revitalization of high alumina castables from aluminium dross

Application Number : Granted vide no. 471016 [2023-24]

Date of grant : 21/11/2023

Inventors : Dr Upendra Singh, M T Nimje, Shoeb Ansari, Anupam Agnihotri, (JNARDDC) & Shri ASP Mishra (VEDANTA)

5. Title of Patent : A process for preparation of aluminium hydroxide with low soda content

Application Number : Granted vide no. 455707 [2023-24]

Date of grant : 29/09/2023

Inventors : Dr Suchita Rai, M. T. Nimje, A Agnihotri

6. Title of Patent : A process for delamination of a multi-layered packaging material and selective recovery of aluminium metal values

Application Number : Granted vide no. 427584 [2023-24]

Date of grant : 29/03/2023

Inventors : Mohamed Najar, Amrita Karan, Paresh Nageshwar, Ram Chouhan, Anupam Agnihotri

7. Title of Patent : Partially Lateritised Khondalite based ceramic proppant and its preparation

Application Number : Granted vide no. 427235 [2022-23]

Date of grant : 28/03/2023

Inventors : Pravin Bhukte, Suresh Puttewar, Mukesh Chaddha, Anupam Agnihotri, Gopal Daware (JNARDDC), Bhimsen Pradhan, Bandopadhyay P(NALCO)

8. Title of Patent : A Process For Selective Enrichment And Separation Of Alumina And Silica

Application Number : Granted vide no. 427093 [2022-23]

Date of grant : 27/03/2023

Inventors : Mohamed Najar, Amrita Karan, Paresh Nageshwar, Mukesh Chaddha, Anupam Agnihotri

9. Title of Patent : A Process for selective reduction of Al2O3, SiO2, Na2O and CaO in reed mud for enrichment of Fe2O3

Application Number : Granted vide no. 421167 [2022-23]

Date of grant : 10/02/2023

Inventors : Dr Mohamed Najar, Shoeb Ansari, Shama Wadsariya, Kiran Janbandhu, Rajashekhar Rao, S P Puttewar and Anupam Agnihotri

10. Title of Patent : A Light Weight Foamed Geopolymer (LWFGEOP) and its preparation

Application Number : Granted vide no. 409005 [2022-23]

Date of grant : 12/10/2022

Inventors : Dr Mohamed Najar, Mukesh Chaddha, Pravin Bhukte, Numanuddin Azad, Shama Wadsariya, Suresh Puttewar, Anupam Agnihotri (Jnarddc) And Saket Jain ( Swarnalatha Holdings)

11. Title of Patent : A process for selective leaching of iron from alumina hydrate

Application Number : Granted vide no. 407793 [2022-23]

Date of grant : 28/09/2022

Inventors : Dr Mohamed Najar, M T Nimje, S P Puttewar, Anupam Agnihotri (JNARDDC) & Subrat Kar, V Krishna Kumari P K Behera, (NALCO)

12. Title of Patent : A process for conversion of Hazardous 1st Cut SPL Waste of Aluminium Industries into Non Hazardous Material by Converting Inorganic Toxic Cyanide to Non Toxic Species by Selective Heat Treatment and Recovery of Sodium, Fluoride and Carbon Value

Application Number : Granted vide no. 407276 [2022-23]

Date of grant : 21/09/2022

Inventors : M T Nimje, Mohamed Najar Anupam Agnihotri, (JNARDDC) & A S P Mishra (VEDANTA)

13. Title of Patent : Process for preparation of low ferric alum from waste or low grade aluminium dross

Application Number : Granted vide no. 406384 [2022-23]

Date of grant : 12/09/2022

Inventors : Dr Upendra Singh, J Mukhopadhyay, (JNARDDC) & Binuta Patra and P Bandopadhyay (NALCO)

14. Title of Patent : A PROCESS FOR PREPARING SMELTER GRADE ALUMINA

Application Number : Granted vide no. 404896 [2022-23]

Date of grant : 29/08/2022

Inventors : S B Rai, M J Chaddha, M T Nimje, R J Sharma, K J Kulkarni & K R Rao (JNARDDC)

15. Title of Patent : A process for rapid analysis of reactive silica in bauxite and laterite based on selective autogenous dissolution at ambient temperature:

Application Number : Granted vide no. 391928 [2021-22]

Date of grant : 14/03/2022

Inventors : Dr Mohamed Najar,Shama Wadsariya, Amrita Karn, Prajakta Ogale,Dr S P Puttewar and Dr Anupam Agnihotri (JNARDDC)

16. Title of Patent : Determination of calcium in alumina hydrate, calcined alumina and process liquor;

Application Number : Granted vide no. 378743 [2021-22]

Date of grant : 06/10/2021

Inventors : Dr Mohamed Najar, Mr M T Nimje, Dr S P Puttewar, Dr Anupam Agnihotri (JNARDDC) & Mr Subrat Kar, Mr V Krishna Kumari and Mr P K Behera (NALCO)

17. Title of Patent : Development of process for selective in-situ dissolution of alumina & silica bearing mineral phases in bauxite at room temperature for geo–analytical application;

Application Number : Granted vide no. 340231[2020-21]

Date of grant : 02/07/2020

Inventors : Dr. Mohamed Najar, Dr. P G Bhukte, Dr. U Singh, Mr. M T Nimje, Dr. SP Puttewar, Dr. A Agnihotri(JNARDDC)

18. Title of Patent : Liquidus /Superheat Temperature Measurement System for Molten Cryolite Bath

Application Number : Granted vide no. 334205 [2019-20]

Date of grant : 09/03/2020

Inventors : Mr R J Sharma,Mr V K Jha (JNARDDC), Mr Binuta Patra (NALCO), Mr P Bandopadhyay (NALCO)

19. Title of Patent : A process for preparing of glass ceramic tiles

Application Number : Granted vide no. 326108[2019-20]

Date of grant : 28/11/2019

Inventors : Mr. MT Nimje, Dr. Mohamed Najar, Mr J Mukhopadhyay (JNARDDC) & Mr B K Satpathy (NALCO)

20. Title of Patent : Controlled heat treatment process for destruction of leachable toxic cyanide in first cut aluminium spent pot lining materials

1. Title of Patent :

An improved heat treatment process for production of heat resistant Al-Zr alloy wire for overhead conductor

2. Title of Patent :

A process for conversion of saprolite into refractory aggregate

3. Title of Patent :

A process for removal of iron oxide, Silica and enrichment of alumina in ferruginous, siliceous and aluminous Laterite by physical separation process

4. Title of Patent :

Process for revitalization of high alumina castables from aluminium dross

5. Title of Patent :

A process for preparation of aluminium hydroxide with low soda content

6. Title of Patent :

A process for delamination of a multi-layered packaging material and selective recovery of aluminium metal values

7. Title of Patent :

Partially Lateritised Khondalite based ceramic proppant and its preparation

8. Title of Patent :

A Process For Selective Enrichment And Separation Of Alumina And Silica

9. Title of Patent :

A Process for selective reduction of Al2O3, SiO2, Na2O and CaO in reed mud for enrichment of Fe2O3

10. Title of Patent :

A Light Weight Foamed Geopolymer (LWFGEOP) and its preparation

11. Title of Patent :

A process for selective leaching of iron from alumina hydrate

12. Title of Patent :

A process for conversion of Hazardous 1st Cut SPL Waste of Aluminium Industries into Non Hazardous Material by Converting Inorganic Toxic Cyanide to Non Toxic Species by Selective Heat Treatment and Recovery of Sodium, Fluoride and Carbon Value

13. Title of Patent :

Process for preparation of low ferric alum from waste or low grade aluminium dross

14. Title of Patent :

A PROCESS FOR PREPARING SMELTER GRADE ALUMINA

15. Title of Patent :

A process for rapid analysis of reactive silica in bauxite and laterite based on selective autogenous dissolution at ambient temperature:

16. Title of Patent :

Determination of calcium in alumina hydrate, calcined alumina and process liquor;

17. Title of Patent :

Development of process for selective in-situ dissolution of alumina & silica bearing mineral phases in bauxite at room temperature for geo–analytical application;

18. Title of Patent :

Liquidus /Superheat Temperature Measurement System for Molten Cryolite Bath

19. Title of Patent :

A process for preparing of glass ceramic tiles

20. Title of Patent :

Controlled heat treatment process for destruction of leachable toxic cyanide in first cut aluminium spent pot lining materials

21. Title of Patent :

Process for preparation of light weight Foamed bricks (LWFBs) utilizing red mud and fly ash admixture

1. Title of Patent :

A process for the preparation of fine alumina trihydrate (ATH) from low-grade bauxite with generation of high-iron containing bauxite residue."

2. Title of Patent :

"Synthesis of alumina having high purity

3. Title of Patent :

Synthesis of spray dried nano 8YSZ plasma sprayable powder and plasma sprayed thermal barrier coating

4. Title of Patent :

A method to obtain upto 150µ thick nano-structure A-Al2O3 coatings by plasma spraying

5. Title of Patent :

A Process for selective separation and recovery of alpha alumina and silica

6. Title of Patent :

A process for delamination of laminated multi-layer packaging industrial refuse and recovery of Aluminium at ambient conditions

7. Title of Patent :

A process for removal of iron oxide, silica and enrichment of alumina in ferruginous, siliceous and aluminous laterite by physical separation process

8. Title of Patent :

A process for preparing smelter grade alumina

9. Title of Patent :

A process for rapid analysis of reactive silica in bauxite and laterite based on selective autogenous dissolution at ambient temperature

10. Title of Patent :

Partially Lateritised Khondalite based Ceramic Proppant and its preparation

11. Title of Patent :

A process for conversion of Hazardous 1st Cut SPL Waste of Aluminium Industries into Non Hazardous Material by Converting Inorganic Toxic Cyanide to Non Toxic Species by Selective Heat Treatment and Recovery of Sodium, Fluoride and Carbon Value

12. Title of Patent :

Method and Apparatus for Onsite Measurement of Bath Ratio, Alumina Concentration, Liquidus Temperature and Operating Temperature of Aluminium Electrolysis Bath

13. Title of Patent :

Development of process for revitalization of high alumina castables from residual Aluminium dross

14. Title of Patent :

An improved heat treatment process for production of heat resistant Al-Zr alloy wire for overhead conductor