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Short Time Mixing Response in a Big Flotation Cell by Juan B. Yianatos; José M. Larenas; Michael H. Moys; Francisco J. Diaz is a Engineering article available to read on EtoBox.

What is Short Time Mixing Response in a Big Flotation Cell about?

A new approach to characterizing the mixing evolution and mass transport patterns in big flotation cells was developed. The procedure consists of using a non-invasive radioisotope tracer technique which allows for the continuous measurement of the local concentration of liquid and solid phases at different points in the cell. This approach was developed to characterize the mixing performance of a 130 m 3 self-aerated flotation cell at El Teniente copper concentrator, Codelco, Chile. Short-term mixing was experimentally characterized by using appropriate radioisotope tracers for liquid and solids. 82 Br in solution was used as liquid tracer and 24 Na was used to trace the solid, considering three particle size classes: +150, -150 + 45 and -45 μm, for non-floatable gangue mineral. From the experimental data, a dynamic mixing model was developed to represent the internal short time mixing, as well as the overall mixing conditions in the pulp and froth zones in a big flotation cell. Results showed a mixing time of around 100 s, for liquid and solids, while the pulp mean residence time was 350 s. It was found that the feed pulp circulates 1.4 times through the impeller zone before reach

Who reads Short Time Mixing Response in a Big Flotation Cell?

Author

Juan B. Yianatos; José M. Larenas; Michael H. Moys; Francisco J. Diaz

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0301-7516)

Published

2008

Language

EN

Field

Engineering (Physical Sciences)