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| 02388nam 2200337za 4500 |
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| 001 | 9.840868 |
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| 003 | CaOODSP |
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| 005 | 20221107151941 |
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| 007 | cr ||||||||||| |
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| 008 | 170802s1972 oncad ob f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cn--- |
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| 086 | 1 |aM38-8/116E-PDF|zM38-8/116 |
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| 100 | 1 |aWheat, T. A. |
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| 245 | 10|aCalcination of gibbsite |h[electronic resource] / |cT.A. Wheat, Mineral Processing Division. |
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| 260 | |aOttawa : |bInformation Canada, |c1972. |
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| 300 | |ap. 43-48 : |bcharts, ill. |
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| 490 | 1 |aReprint series ; |vRS 116 |
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| 500 | |aCover title. |
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| 500 | |a"Reprinted from the Journal of the Canadian Ceramics Society, (1971), vol. 40, pp. 43-48." |
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| 500 | |aHistorical publication digitized from print 2017 [by Natural Resources Canada]. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | 3 |a"Data are presented showing the changes in physical properties which occur during the calcination of Bayer-process gibbsite at temperatures up to 1400°C. The various stages of the calcination were examined using differential thermal analysis, X-ray diffraction, low-temperature nitrogen adsorption, optical and electron microscopy, and particle-size distribution analyses. The morphology of the gibbsite aggregates was found to be unchanged up to ~ 1100°C, despite the development of several intermediate metastable phases. At higher temperatures, the original gibbsite pseudomorphs become microporous coincident with the development of finely divided alpha-alumina which is formed in a strain-free state. The crystal size and pore size increase with temperature between 1100 and 1400°C. The influence of the parent gibbsite structure on the morphology of the alpha-phase material is demonstrated in scanning-electron micrographs. The effect of various parameters on the milling of high-temperature calcines is also discussed"--Abstract, p. 43. |
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| 692 | 07|2gccst|aCeramics |
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| 692 | 07|2gccst|aMinerals |
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| 692 | 07|2gccst|aProcessing |
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| 710 | 1 |aCanada. |bNatural Resources Canada. |
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| 710 | 1 |aCanada. |bDepartment of Energy, Mines and Resources. |
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| 710 | 1 |aCanada. |bMines Branch. |
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| 830 | #0|aReprint series - Dept. of Energy, Mines and Resources, Mines Branch ;|vRS 116|w(CaOODSP)9.834843 |
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| 856 | 40|qPDF|s2.92 MB|uhttps://publications.gc.ca/collections/collection_2017/rncan-nrcan/M38-8/M38-8-116-eng.pdf |
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