ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The physical transformation of powdered kaolinite associated with rapid dehydroxylation during flash calcination has been followed using pycnometry, thermogravimetry, electron microscopy, X-ray powder diffraction and infrared spectroscopy. 116 partially dehydroxylated kinetically-frozen calcines were produced in a laboratory flash calciner covering the following ranges of process variables: calciner temperature 700–1000 °C, rate of heating to calciner temperature 4700–15000 Ks−1, residence time at the calciner temperature 0.1–1.5 s, He or N2 calciner atmosphere. From the analyses of these calcines a picture of the changes in physical characteristics caused by flash heating of kaolinite has emerged and is described.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01105062
