ISSN 2594-357X
6º Simpósio Brasileiro de Minério de Ferro — Vol. 01 , num. 6 (2005)
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Abstract
Paste thickening technology is rapidly emerging as an effective method for handling tailings for water recovery and as an alternative to conventional dams and ponds. This paper describes the principles of design and general operating characteristics of the paste thickener. A tailings paste is a non-settling suspension of relatively high solids content with a non-Newtonian rheology. These characteristics offer the advantages of increased water recovery and surface disposal of tailings. A pilot scale paste thickener thickened iron ore tailings to underflow solids ranging from 55 to 80 wt%. Deposition tests produced non-settling tailings with slopes ranging from 2% to 8%. An integrated approach to process design was used in the pilot testing to match the performance of the thickener, pumping system, and application on a common rheological basis.
Paste thickening technology is rapidly emerging as an effective method for handling tailings for water recovery and as an alternative to conventional dams and ponds. This paper describes the principles of design and general operating characteristics of the paste thickener. A tailings paste is a non-settling suspension of relatively high solids content with a non-Newtonian rheology. These characteristics offer the advantages of increased water recovery and surface disposal of tailings. A pilot scale paste thickener thickened iron ore tailings to underflow solids ranging from 55 to 80 wt%. Deposition tests produced non-settling tailings with slopes ranging from 2% to 8%. An integrated approach to process design was used in the pilot testing to match the performance of the thickener, pumping system, and application on a common rheological basis.
Keywords
Paste, Tailings, Stacking
Paste, Tailings, Stacking
How to cite
Slottee, Steve; Johnson, Jerold; Crozier, Mark.
Paste Thickening Iron Ore Tailings,
p. 904-911.
In: 6º Simpósio Brasileiro de Minério de Ferro,
None,
2005.
ISSN: 2594-357X, DOI 10.5151/2594-357x-6MinFe-904-911
