Enrichment of Silica Sand Ore by Cyclojet Flotation Cell
Abstract
Cyclojet flotation is an alternative technique of jet flotation.
It essentially has a mechanism for bubble formation with pulp
jet spouting from the apex of hydrocyclone. The size of the bubbles
formed with pulp jet in the cyclojet cell is very small, and
the quantity of bubbles produced also limits its potential to produce
high bubble-particle collision. This is particularly efficient in
beneficiation of fine-grained ores. In this study, the performance
of the cyclojet flotation cell was tested for removing iron-oxides
from silica sand ore. Whether it can be used as an alternative to
conventional mechanical cells was studied. The findings obtained
from the cyclojet cell were compared with findings obtained from
the conventional cell. It was seen that the cyclojet cell produced
slightly better results than the conventional cell. Under the best
conditions, while the cyclojet cell reduced the iron-oxide content
in silica sand from 0.41% to 0.08%, the conventional cell reduced
it to 0.10%. While iron removal efficiency was 80.49% for the
cyclojet flotation, it was calculated as 75.61% for the conventional
cell. These findings showed that cyclojet flotation can be used as
an alternative method to conventional flotation for the removal of
iron oxides from silica sand.
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