Binding iron ore pellets with fluidized-bed combustor fly ash
Document Type
Article
Publication Date
5-1-1998
Department
Department of Materials Science and Engineering
Abstract
A high calcium fluidized-bed combustor ash was shown to be an effective binder for iron ore pellets at dosages of 1% to 2% of the magnetite concentrate weight. Magnetite pellets that were between 1.1 and 12.7 mm (7/16 and 1/2 in.) in diameter were produced with dry crushing strengths greater than 22.3 N (5.0 lb-force) per pellet, which is comparable to the results produced using conventional bentonite binder. The effectiveness of fly-ash-based binders was considerably improved when calcium chloride was added as an accelerator. The addition of calcium chloride at a rate of 0.1% to 0.2% of the total powder weight increased the strength of the dried pellets by as much as 22% compared to the strength of pellets made using fly-ash without accelerators.
Publication Title
Minerals and Metallurgical Processing
Recommended Citation
Kawatra, S.,
Eisele, T. C.,
&
Banerjee, D.
(1998).
Binding iron ore pellets with fluidized-bed combustor fly ash.
Minerals and Metallurgical Processing,
15(2), 20-23.
http://doi.org/10.1007/bf03402793
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/4597