TY - GEN
T1 - Feed air jet - A cavitation sparger system for enhanced flotation recovery
AU - Santos, Nilce Alves
AU - Duarte, Fábio
AU - Fan, Maoming
AU - Honaker, Rick
AU - Baldessin, Adriana
AU - De Paula Pinheiro, Cezar
PY - 2012
Y1 - 2012
N2 - Cavitation is a process of formation, growth and subsequent collapse of gas and/or vapor-filled cavities, or microbubbles, in a fluid. Several fundamental studies about this phenomenon have shown that microbubbles generated on mineral surfaces facilitate bubble-particle attachment, and ultimately improves flotation performance. This work presents the Feed Air Jet, a feed pre-aeration cavitation sparger system developed by Eriez. Using coal, cavitation was applied to a flotation feed stock studied in laboratory setting in the USA. This feed pretreatment technique resulted in a significant increase in recovery and flotation kinetics. The Feed Air Jet was also installed at an industrial plant in Brazil and enhanced the overall metallurgy by increasing the mass recovery of the iron (Fe) values while reducing the amount of entrained iron in the tailings stream.
AB - Cavitation is a process of formation, growth and subsequent collapse of gas and/or vapor-filled cavities, or microbubbles, in a fluid. Several fundamental studies about this phenomenon have shown that microbubbles generated on mineral surfaces facilitate bubble-particle attachment, and ultimately improves flotation performance. This work presents the Feed Air Jet, a feed pre-aeration cavitation sparger system developed by Eriez. Using coal, cavitation was applied to a flotation feed stock studied in laboratory setting in the USA. This feed pretreatment technique resulted in a significant increase in recovery and flotation kinetics. The Feed Air Jet was also installed at an industrial plant in Brazil and enhanced the overall metallurgy by increasing the mass recovery of the iron (Fe) values while reducing the amount of entrained iron in the tailings stream.
KW - Cavitation
KW - Feed air jet
KW - Flotation
KW - Pre aeration
UR - https://www.scopus.com/pages/publications/84883701135
UR - https://www.scopus.com/inward/citedby.url?scp=84883701135&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84883701135
SN - 9781627480215
T3 - 6th Int. Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Including Proceedings from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore
SP - 2713
EP - 2724
BT - 6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Including Proc. from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore
T2 - 6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012
Y2 - 14 October 2012 through 18 October 2012
ER -