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On-line X-ray diffraction for quantitative phase analysis: Application in the Portland cement industry

Published online by Cambridge University Press:  05 March 2012

Nicola V. Y. Scarlett ,
Ian C. Madsen ,
Con Manias  and
David Retallack
Nicola V. Y. Scarlett
Affiliation:
CSIRO Minerals, Box 312, Clayton South, Victoria 3169, Australia
Ian C. Madsen
Affiliation:
CSIRO Minerals, Box 312, Clayton South, Victoria 3169, Australia
Con Manias
Affiliation:
Fuel and Combustion Technology Pty. Ltd. (FCT), 20 Stirling Street, Thebarton SA 5031, Australia
David Retallack
Affiliation:
Fuel and Combustion Technology Pty. Ltd. (FCT), 20 Stirling Street, Thebarton SA 5031, Australia
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Abstract

The aim of this work was to design, construct, install, and commission an on-line, X-ray diffraction (XRD) analyzer capable of continuously monitoring phase abundances for use in process plant control. This has been achieved through a joint project between CSIRO Minerals and Fuel & Combustion Technology Pty. Ltd. with an instrument designed for use in a Portland cement manufacturing plant. Key factors in tailoring such an instrument to the cement industry were (i) the handling and presentation of a dry sample and (ii) the development of an analytical method suitable for the complex suite of phases contained within Portland cement. The instrument incorporates continuous flow of sample through the diffractometer using a purpose-built sample presentation stage. The XRD data are collected simultaneously using a wide range (120° 2θ) position sensitive detector, thus enabling rapid collection of the full diffraction pattern. The data are then analyzed using a Rietveld analysis method to obtain a quantitative estimate of each of the phases present. The instrument is controlled by a PC linked to the diffractometer through a purpose built interface. The phase abundance information is then transmitted to the central computer in the cement plant where it can be used for the control of mill parameters such as temperature and retention times as well as gypsum feed rate.

Type
Technical Articles
Information
Powder Diffraction , Volume 16 , Issue 2 , June 2001 , pp. 71 - 80
Copyright
Copyright © Cambridge University Press 2001

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References

Aldridge, L. P. (1982). “Accuracy and precision of phase analysis in Portland cement by Bogue, microscopic and X-ray diffraction methods,” Cem. Concr. Res. CCNRAI 12, 381–398. ccn, CCNRAI Google Scholar
Bogue, R. H. (1929). “Calculation of the compounds in Portland cement,” Ind. Eng. Chem. IEENAD 1, 192–197., IEENAD Google Scholar
Campbell, D. H. (1986). “Microscopical examination and interpretation of Portland cement and clinker,” Portland Cement Association, USA, Library of Congress catalogue card number 85-63563.Google Scholar
Coelho, A. A., Madsen, I. C., and Cheary, R. W. (1997). “A New Rietveld refinement program using a fundamental parameters approach to synthesizing line profiles,” Proceedings of Crystal XX, The Twentieth Meeting of the Society of Crystallographers in Australia, April 2–5, 1997, Queenstown, New Zealand.Google Scholar
Cullity, B. D. (1978). Elements of X-ray Diffraction, 2nd ed. (Addison Wesley, New York).Google Scholar
Grubbs, F. E. (1948). “On estimating precision of measuring instruments and product variability,” J. Am. Stat. Assoc. JSTNAL 43, 243–264. jsk, JSTNAL Google Scholar
Hill, R. J. (1983). “Calculated X-ray powder diffraction data for phases encountered in lead/acid battery plates,” J. Power Sources JPSODZ 9, 55–71. jso, JPSODZ Google Scholar
Hill, R. J., and Howard, C. J. (1987). “Quantitative phase analysis from neutron powder diffraction data using the Rietveld method,” J. Appl. Crystallogr. JACGAR 20, 467–474. acr, JACGAR Google Scholar
ICDD-PDF (1995). “The database of diffraction data compiled by the JCPDS International Centre for Diffraction Data.”Google Scholar
Jenkins, R., and Snyder, R. (1996). Introduction to Powder Diffractometry (Wiley, New York).Google Scholar
Klug, H. P., and Alexander, L. E. (1974). X-ray Diffraction Procedures for Polycrystalline Materials, 2nd ed. (Wiley, New York).Google Scholar
Madsen, I. C., and Scarlett, N. V. Y. (1999). “Cement: Quantitative phase analysis of Portland cement clinker,” in Industrial Applications of X-ray Diffraction, edited by F. H. Chung and D. K. Smith (Marcel Dekker, New York).Google Scholar
Madsen, I. C., Scarlett, N. V. Y., Cranswick, L. M. D., and Lwin, T. (2001). “Outcomes of the International Union of Crystallography Commission on Powder Diffraction Round Robin on Quantitative Phase Analysis: Samples 1A to 1H,” J. Appl. Crystallogr. (submitted).Google Scholar
Manias, C., Retallack, D., and Madsen, I. (2000). “XRD for on-line analysis and control,” World Cem. WOCEDR 31 78–81. woc, WOCEDRGoogle Scholar
Mumme, W. G. (1995). “Crystal structure of tricalcium silicate from a Portland cement clinker and its application to quantitative XRD analysis,” Neues Jahrb. Mineral., Abh. NJMIAK 169, 35–68. njm, NJMIAK Google Scholar
Rietveld, H. M. (1969). “A profile refinement method for nuclear and magnetic structures,” J. Appl. Crystallogr. JACGAR 2, 65–71. acr, JACGAR Google Scholar
Taylor, H. F. W. (1990). Cement Chemistry (Academic, London).Google Scholar
Taylor, J. C., and Rui, Z. (1992). “Simultaneous use of observed and calculated standard profiles in quantitative XRD analysis of minerals by the multiphase Rietveld method: The determination of pseudorutile in mineral sands products,” Powder Diffr. PODIE2 7, 152–161. pdj, PODIE2 Google Scholar
Young, R. A. (1993). The Rietveld Method (Oxford University Press, Oxford).Google Scholar