Dry Slag Granulation

Granulation of molten metallurgical slags is a value-adding process that converts a low-value by-product (and sometimes waste) into a saleable product with multiple uses by the building and construction industries. Dry granulation of slags is an emerging sustainable technology that can reduce energy consumption and GHG emission as well as avoiding consumption of huge volume of water and emission of sulphurous containing gases.

We have been active in this area for over a decade and have collaborated with the industry in both the development and assessment of technologies.

Presentation

Dry Slag Granulation with Waste Heat Recovery

Research Highlights

  • M. Barati and S. Jahanshahi; Dry Granulation and Heat Recovery from Metallurgical Slags; Proceedings of the 6th Slag Valorisation Symposium, 1-5 April, 2019, Mechelen, Belgium, 291-313.

  • S. Jahanshahi, Y. Pan and D. Xie; Some fundamental aspects of the dry slag granulation process. In: 9th International Conference on Molten Slags, Fluxes and Salts (MOLTEN12); 27-30 May 2012; Beijing, China. Chinese Society for Metals; 2012. 12p. CD ROM.

  • S. Jahanshahi and D. Xie; Current status and future direction of CSIRO’s dry slag granulation process with waste heat recovery. In: 5th International Congress on the Science and Technology of Steelmaking 2012 (ICS 2012); 1-3 October 2012; Dresden, Germany. ICS 2012 Organisers; 2012. 9p. CD ROM.

  • T. Norgate, D. Xie and S. Jahanshahi; Economic and environmental evaluation of slag dry granulation. In: SCANMET IV - 4th International Conference on Process Development in Iron and Steelmaking; 10-13 June 2012; Lulea, Sweden. Lulea, Sweden: SCANMET Organisers; 2012. 10p. CD ROM.

Publications

  • Barati, M. and Jahanshahi, S. (2020). Granulation and heat recovery from metallurgical slags. Journal of Sustainable Metallurgy, 6(2), 191–206.

  • Jahanshahi, S. (2019). Preface for Thematic Section: Slag Granulation. Journal of Sustainable Metallurgy, 5(2), 155–156.

  • Jahanshahi, S., Mathieson, J.G., Somerville, M.A., Haque, N., Norgate, T.E., Deev, A., Pan, Y., Xie, D., Ridgeway, P. and Zulli, P., Development of Low-Emission Integrated Steelmaking Process, J. Sustain. Metall., 2015, DOI 10.1007/s40831-015-0008-6.

  • Xie, D., Washington, B.M., Norgate, T.E., Jahanshahi, S. (2005) Dry granulation of slags - turning waste into valuable products, Current advances in materials and processes (CAMP-ISIJ), 18(4), 1088-1091.

  • Jahanshahi, Sharif; Deev, Alex; Haque, Nawshad; Lu, Liming; Mathieson, John; Norgate, Terry (2014) Current status and future direction of low-emission Integrated Steelmaking Process. In: Mackey, P.J.; Grimsey, E.J.; Jones, R.T.; Brooks, G.A., editor/s. Celebrating the Megascale: Proceedings of the Extraction and Processing Division Symposium on Pyrometallurgy in Honor of David G.C. Robertson; 16-20 February 2014; San Diego, California, USA. John Wiley & Sons on behalf of The Minerals, Metals & Materials Society (TMS); 2014. 303-316.

  • Jahanshahi, Sharif; Pan, Yuhua; Xie, Dongsheng (2012) Some fundamental aspects of the dry slag granulation process. In: 9th International Conference on Molten Slags, Fluxes and Salts (MOLTEN12); 27-30 May 2012; Beijing, China. Chinese Society for Metals; 2012. 12p. CD ROM.

  • Jahanshahi, Sharif; Xie, Dongsheng (2012) . In: 5th International Congress on the Science and Technology of Steelmaking 2012 (ICS 2012); 1-3 October 2012; Dresden, Germany. ICS 2012 Organisers; 2012. 9p. CD ROM.

  • Norgate, Terry; Xie, Dongsheng; Jahanshahi, Sharif (2012) Economic and environmental evaluation of slag dry granulation. In: SCANMET IV - 4th International Conference on Process Development in Iron and Steelmaking; 10-13 June 2012; Lulea, Sweden. Lulea, Sweden: SCANMET Organisers; 2012. 10p. CD ROM.

  • Norgate, Terry; Xie, Dongsheng; Jahanshahi, Sharif (2012) Technical and economic evaluation of slag dry granulation. In: AISTech 2012 - The Iron & Steel Technology Conference and Exposition; 7-10 May 2012; Atlanta, Georgia, USA. Association for Iron & Steel Technology (AIST); 2012. 35-46.

  • Jahanshahi, Sharif; Xie, Dongsheng; Pan, Yuhua (2011) Dry granulation of molten slags: an attractive option for sustainable processing. In: Mario Sanchez, editor/s. Clean Mining 2011 - 9th International Conference on Clean Technologies for the Mining Industry; 10-12 April 2011; Santiago, Chile. Santiago, Chile: Gecamin, Chile; 2011. CD ROM.

  • Jahanshahi, Sharif; Xie, Dongsheng; Pan, Yuhua; Ridgeway, Philip; Mathieson, John (2011) Dry slag granulation with integrated heat recovery. In: 1st International Conference on Energy Efficiency and CO2 Reduction in the Steel Industry (EECR Steel 2011) - incorporated in METEC InSteelCon 2011; 27 June - 1 July 2011; Dusseldorf, Germany. The Steel Institute VDEh; 2011. Session 13, 7 pages. CD ROM

  • Xie, D., Jahanshahi, S., Norgate, T.E. (2010) Dry granulation to provide a sustainable solution for slag treatment. In: Sustainable Mining 2010 - The Business Case; 17-19 August 2010; Kalgoorlie, WA, Australia. AusIMM; 2010. 22-28.

  • Xie, Dongsheng, Norgate, Terry, Jahanshahi, Sharif (2010) A new integrated dry slag granulation and heat recovery process. In: Dr Robert McCaffrey, editor/s. The 6th Global Slag Conference; 22-23 November 2010; Sydney, Australia. Surrey, UK: PRo Publications International Ltd; 2010. Paper 11, CD ROM..

  • Xie, D., and Jahanshahi, S. (2008) Waste Heat Recovery from Molten Slags, In: ICS2008, 4th International Congress on the Science and Technology of Steelmaking, Gifu, Japan, 6-8 October 2008, CD ROM, 674-678.

  • Xie, D., Pan, Y., Flann, R. C., Washington, B. M., Sanetsis, S., Donnelly, J., Norgate, T. E., and Jahanshahi, S. (2007) Heat recovery from slag through dry granulation. In: 1st CSRP Annual Conference, 21-22 November 2007, Melbourne, Victoria, Australia. 29-30.

  • Norgate, T. E., Xie, D., Jahanshahi, S., and Russell, M. (2007) Utilisation of slag waste heat in steel plants. In: 1st CSRP Annual Conference, 21-22 November 2007, Melbourne, Victoria, Australia. 25-27.

  • Xie, D., Washington, B. M., Norgate, T. E., and Jahanshahi, S. (2005) Dry granulation of slags - turning waste into valuable products. Current Advances in Materials and Processes (CAMP-ISIJ), 18 (4): 1088-1091.