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Process Control Group: Publications (and Plenary Le ctures) - as of February 2014

1. Thwaites, P., Sandoz, D., McEwan, M., Kak, D., Gillis, J., Nelson, P., Norberg, P.O., System and Method for the Furnace Monitoring and Control, CA Patent # 2469975, Issued 2013-09-17, Filed 2004-06-04, Examined 2009-05-01, Opened for Public Inspection 2005-12-04.

2. Thwaites, P., Manual Control, Process Automation – Or Operational Performance Excellence? What is the Difference? IV Symposium – Information Technology, Telecommunications, Automation & Robotics of the Energy Mining Sector, Lima, Peru, August 23rd, 2013, Closing Lecture.

3. Thwaites, P., Manual Control, Process Automation – Or Operational Performance Excellence? What is the Difference? 45th Canadian Mineral Processors, Ottawa, January 22-24 2013, 2nd Plenary, Paper No. 27, pp. 357.

4. Jin, X., Rioux, D., Graffi, D., MacPherson, G., From Stabilization to Optimization; Process Control in the Flotation Process at Xstrata Nickel’s Strathcona Mill. 45th Canadian Mineral Processors, Ottawa, January 22-24 2013, Paper No. 30, pp. 387-398.

5. O’Keefe, C., Felix, J., Peacock, R., Huysamen, T., Thwaites, P., The Impact of Entrained Air and Enhanced Flow Measurements at Eland Platinum Concentrator, Platinum – A Catalyst for Change’ Symposium (2012), SAIMM, Sun City, South Africa, Sept. 18-20, 2012.

6. Jin, X., Huang, B., and Shook, David S. Multiple model LPV approach to nonlinear process identification, Elsevier, Journal of Process Control 21 (2011), pp 182-193.

7. Hyde, A., Salomon de Friedberg, A., and Coleman, M. Control of Fugitive Emissions in a Continuous Mitsubishi C-Furnace during Limestone Fluxing, proceedings of Cu 2010 – Copper – Indicator of the progress of civilization, Hamburg, Germany – to be presented – June 6-10, 2010.

8. Bouchard, J., Émond, M., Monnapula, R., and Molelekeng, N. Asset Optimisation Through Process Control at Xstrata Alloys – Eland Platinum – “Optimal Doesn’t Always Rhyme with Capital”, proc. 42nd Canadian Mineral Processors, Ottawa, January 2010, Paper No. 26, pp. 419-438.

9. Desbiens, A., del Villar, R., Maldonado, M., (Laval University); and Bouchard, J., Towards the optimization of flotation column operation, 48th Conference of Metallurgists (COM2009), held in conjunction with Nickel & Cobalt 2009, Sudbury, 23 - 26 Aug. 2009.

10. Shang, H., (Laurentian University), Nelson, P., and Salt, B., Integrated Modelling of a Smelter Off-gas Cleaning System, 48th Conference of Metallurgists (COM2009), held in conjunction with Nickel & Cobalt 2009, Sudbury, 23 - 26 Aug. 2009.

11. Bouchard, J., Émond, M., Who you gonna call? The difference between process control, instrumentation and control systems expertise, CIM Magazine upfront TECHNOLOGY, August 2009, Vol.4 – No.5, pages 24 and 25.

12. Núñez, E., MacPherson, G., Graffi, D., and Tuzun, A., Self-optimizing Grinding Control for Maximizing Throughput while Maintaining Cyclone Overflow Specifications, 41st Annual CMP (Canadian Mineral Processors) Conference 2009, Ottawa, Jan. 19-22, 2009, Paper 32, pp. 541-555.

13. Bartsch, E., Comeau, G., and Hardie, C., Evolution of SAG Mill Process Control at the Xstrata Nickel Raglan Operation, CIM Magazine Executive Summaries, November 2008, page 102.

14. Bouchard, J., Desbiens, A., del Villar, R., and Núñez, E., Column Flotation modeling and Control: A Review, Submitted to Minerals Engineering, 6th July 2008.

15. Thwaites, P., Process Control in Metallurgical Plants: Towards ‘Operational Performance Excellence’ Plenary Lecture, automining2008 – 1st International Congress on Automation in the Mining Industry, Santiago, Chile, April 23rd – 25th, 2008.

16. Bartsch, E., Comeau, G., and Hardie, C., Evolution of SAG Mill Process Control at the Xstrata Nickel Raglan Operation, 40th Annual CMP (Canadian Mineral Processors) 2008, Ottawa, Jan. 22-24, 2008, pp 445-464.

17. Shang, H., Dillabough, M., Nelson, P., and Salt, B., Dynamic Modelling of an Industrial Smelter Furnace and Converter Off-gas System, American Journal of Environmental Sciences, vol. 4, number 1, 22-30, 2008.

18. Desbiens, A., Núñez, E., del Villar, R., Hodouin, D., and Poulin, E., Using Process Control to Increase the Energy Efficiency of Mineral Processing Plants, International Journal of Power and Energy Systems, Vol. 28, No. 2, 2008, pp 145-152.

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XPS Consulting & Testwork Services – XPS Centre, 6 Edison Road, Falconbridge, ON, Canada, P0M 1S0 A GLENCORE Company, Glencore Canada Corporation

19. Shang, H., Mehta, B., Thwaites, P., Ryan, L, and Nelson, P., Dynamic Modeling of an Industrial Roaster Off-Gas System in a Nickel Smelter, Ind. Eng. Chem. Res. (2007), 46, pp 5371-5379.

20. Salomon de Friedberg, A., (Hyde, A.), Continuous C-Furnace Limestone Injection at the Kidd Smelter, 10th Mitsubishi Family Meeting, Timmins, October 2007.

21. Nelson, P., Hyde, A., McEwan, M., and Sandoz, D., Integrity Monitoring of Xstrata Copper’s Kidd Metallurgical Division Mitsubishi 3-Line Furnaces Using Multivariate Methods, 6th Copper Conference – Cu2007, Toronto, August 2007, Volume VII Process Control, Optimization, & Six Sigma, pp 229-239.

22. Kreuh, M., Wraith, A.E., McEwan, M., and Lind, P., Tuyere Pressure Frequency Measurements in a Pierce Smith Converter, 6th Copper Conference – Cu 2007, Toronto, August 2007, Volume VII Process Control, Optimization, and Six Sigma, pp 159-175.

23. Romero, F., Avila, G., Fester, R., and Yacher, L., Using Multivariable Analysis for Cathode Quality Improvement in C. M. Doña Inés de Collahuasi EW Plant. 6th Copper Conference – Cu2007, Toronto, Canada, August 2007.

24. Thwaites, P.E., Process Control in metallurgical plants–From an Xstrata perspective, Plenary (Industrial) Lecture (P3), 12th IFAC Symposium on Automation in Mining, Mineral and Metal Processing – IFAC MMM ’07, Quebec City, August 2007, Elsevier, Annual Reviews in Control 31 (2007), pp 221-239.

25. Fanas, J., Tiburcio, P., Restituyo, W., Lovett, D., McEwan, M., Sandoz, D., and Ryan, L.A., Automatic Control Development for the Falcondo Ferronickel Electric Arc Smelting Furnaces, 12th IFAC Symposium on Automation in Mining, Mineral and Metal Processing – IFAC MMM’07, Quebec City, August 2007, Symposium Preprints, pp 65-70.

26. Shang, H., Thwaites, P.E., Ryan, L.A., and Nelson, P., Comparison of Different Control Methods for an Industrial Nickel Smelter Roaster Off-Gas System, 12th IFAC Symposium on Automation in Mining, Mineral and Metal Processing – IFAC MMM ’07, Quebec City, August 2007, Symposium Preprints, pp 223-228.

27. Thwaites, P.E., Process Control in Metallurgical Plants – from an Xstrata Perspective, Plenary (Industrial) Lecture (P3), 12th IFAC Symposium on Automation in Mining, Mineral and Metal Processing – IFAC MMM’07, Quebec City, August 2007, Symposium Preprints, pp 375-389.

28. Núñez, E., Chirinos, J., del Villar, R., Desbiens, A., and Duchesne, C., Predictive Control of Froth Depth and Air Hold-Up in a Pilot Flotation Column, International Symposium on Application of Computers and Operations Research in the Mineral Industry (APCOM) 2007, Santiago, Chile, pp. 517-524, 2007.

29. Romero, F., Automation, Information & Communication Technologies: Challenges and Opportunities for the Mineral Industry. Collahuasi’s Case. Plenary Lecture on 33rd International Symposium on Applications of Computers and Operations Research in the Mineral Industry – APCOM 2007, Santiago, Chile, April 24-27, 2007.

30. King, M., The Evolution of Technology for Extractive Metallurgy over the Last 50 Years – Is the Best Yet to Come?, JOM publication, February 2007.

31. Fester, R., Romero, F., and Acuña, P., Control de Neblina Ácida y Ruido en Nave EW C. M. Doña Inés de Collahuasi. I International Workshop on Process Hydrometallurgy – Hydroprocess 2006, Iquique, Chile, October 11-13, 2006.

32. Bouchard, J., Desbiens, A., del Villar, R., and Chirinos, J., Column Flotation simulation: A Dynamic Framework, International Conference on Mineral Process Modelling, Simulation and Control – MPMSC 2006, Sudbury, Canada, pp. 259-275, 2006.

33. Hanna, J., Upreti, S.R., Lohi, A., and Ein-Mozaffari, F., Minimum Variance Tuning of PI Controllers Using Hybrid Genetic Algorithms, Mineral Process Modelling, Simulation and Control – MPMSC 2006, Laurentian University, Sudbury, June 2006.

34. Nunez, E., Chirinos, J., Desbiens, A., del Villar, R., and Duchesne, C., Multivariable Predictive Control of a Pilot Flotation Column. Part 1: On-Line Sensors for Froth Depth and Air Hold-Up, International Conference on Mineral Process Modelling, Simulation and Control, Sudbury, Canada, pp. 277-290, 2006.

35. Nuñez, E., Desbiens, A., del Villar, R., and Duchesne, C., Multivariable Predictive Control of a Pilot Flotation Column. Part 2: Identification and Control, International Conference on Mineral Process Modelling, Simulation and Control, Sudbury, Canada, pp. 291-301, 2006.

36. Nelson, P.R.C., MacGregor, J.F., and Taylor, P.A., The impact of missing measurements on PCA and PLS prediction and monitoring applications, Chemometrics and Intelligent Laboratory Systems, v. 80, n. 1, 1-12, 2006.

37. Bouchard, J., Desbiens, A., and del Villar, R., Optimization-free constrained nonlinear predictive control: Mineral processing applications, 16th IFAC world congress, Prague, We-A22-T0/1, 2005.

38. Bouchard, J., Desbiens, A., and del Villar, R., Recent advances in bias and froth depth control in flotation columns, Minerals Engineering 18, pp. 709-720, 2005.

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XPS Consulting & Testwork Services – XPS Centre, 6 Edison Road, Falconbridge, ON, Canada, P0M 1S0 A GLENCORE Company, Glencore Canada Corporation

39. Nuñez, E., Instrumentation et commande predictive d’une colonne pilote de flottation, M.Sc. Thesis, Université Laval, Quebec, Canada, 2005.

40. Bouchard, J., Commande automatique de la flottation en colonne : asservissement de la profondeur d'écume et du différentiel d'eau, M.Sc. Thesis, Université Laval, Québec, 2004.

41. Desbiens, A., and Bouchard, J., Constrained Nonlinear Predictive Control Based on IMC-Optimization, 11th International Federation of Automatic Control (IFAC) Symposium on Automation in Mining, Mineral and Metal Processing, Nancy, France, Thu-C1, 2004.

42. Nuñez, E., Stratégie de contrôle du circuit de broyage au concentrateur Toquepala au Pérou, Presented at the Annual Conference of the Canadian Mineral Processor’s Northwest Quebec Section, Rouyn-Noranda, Quebec, Canada, September 2004.

43. Ryan, L.A., Frias, J., Rodriguez, P., Morrow, A., Boland, M., and Sandoz, D., Falconbridge Dominicana Reduction Shaft Furnace Advanced Control Development, TMS 2004, Charlotte, NC, March 2004.

44. Romero, F., Suarez, M., and Bascur, O.A., Improving metallurgical performance at Collahuasi. 2004 SME Annual Meeting. Denver, CO, USA.

45. Romero, F., Orchard, M., and Yacher, L., Statistical multivariate analysis for improved plant control at C.M. Dona Ines de Collahuasi SCM, Chile. 2003 SME Annual Meeting, Cincinnati, OH, USA.

46. Romero, F., Herramientas de Optimización en Molienda. Taller de Procesamiento de Minerales 2002, Antofagasta, Chile, October 23-25, 2002.

47. Núñez, E., Filosofía de control para molienda y clasificación en la planta concentradora de Toquepala y diseño de una estrategia de control utilizando DCS, Thesis, Universidad Católica de Santa María, Arequipa, Peru, 2002.

48. Suichies, M., Leroux, D., Dechert, C., and Trusiak, A., Model Predictive Control of the Flotation Process, CMP, Ottawa, On., Canada, January 1999.

49. Ryan, L.A., Flament, F., and Desbiens, A., Kidd Creek Mines Automatic Primary Grinding Control, CMP, Ottawa, On., Canada, January 1996.

50. Thwaites, P., Roaster Automatic Feed Control at the Kidd Creek Zinc Plant, Connoisseur User’s 2nd Meeting, Manchester University, Manchester, UK, 28th March, 1994.

51. Thwaites, P., Advanced control improves zinc processing throughput, Control and Instrumentation Journal, page 19, March, 1994.

52. Thwaites, P., Breakthrough at Kidd Creek Mines! (Advanced Automatic Roaster Feed Control), Connoisseur News – The Newsletter of Predictive Control Limited, page 1, Issue 2, November, 1993.

53. Burrows, M., Tremblay, R., Roberts, K., Jameson Cell Testing at the Kidd Creek Concentrator, 25th Annual Meeting of the Canadian Mineral Processors (CMP) Division of CIM, Held at the Westin Hotel, Ottawa, Jan. 19-21, 1993, Paper 23.

54. Burrows, M.J., Carriere, J.D., Leung, J., and Languitton, D., An Expert System Designed to Improve Reliability of Assay Information in a Flotation Plant, 21st Annual Meeting of the Canadian Mineral Processors (CMP) Division of CIM, Held at the Westin Hotel, Ottawa, Jan. 19-21, 1989.

55. Thwaites, P.E., Computer Controlled Reagent Addition Strategy and Hardware For The Control OF A Copper And Zinc Flotation Process – Third Meeting of the Canadian Industrial Computer Society (CCICS 1986), May 1986, École Polytechnique, Montreal, Canada, pp 56-1 – 56-8.

56. Thwaites, P.E., Continued development of copper flotation control at the Kidd Creek concentrator, CIM Bulletin, December 1983, pp. 41-46.

57. Thwaites, P.E., Continued development of copper flotation control at the Kidd Creek concentrator, 15th Annual Meeting of the Canadian Mineral Processors (CMP) Division of CIM, Held at the Canada Centre for Mineral and Energy Technology, Energy, Mines and Resources Canada, Ottawa, Jan. 18-20, 1983, Paper 20, pp. 287-316.

Phil Thwaites, BSc. (Eng.), ARSM, P. Eng.

Manager - Process Control & EIT Program, XPS; Phil.Thwaites@xps.ca