| The
objective of the process is the recovery of the major metals content,
iron and zinc, as useful/marketable materials and the minimisation
of the residual solid waste. In terms of recycling efficiencies, more
than 90% of the iron present in the EAF dust can be recovered to iron
compounds; zinc recovery can exceed 90%; and the amount of dust valorised
or recycled is of the order of 75% depending on the composition of
the dust. |
|
This
compares extremely favourably with other hydrometallurgical processes
for the treatment of EAF dusts where less than 30% of the dust is
valorised due to the focus on only the Zinc content. |