Volume
2 includes the design of the process flowsheet,
from bench-scale,
small-scale continuous, followed by piloting and subsequently through to
scale-up to plant operation. Plant design includes sections on materials of construction, control, safety and
fire hazards. A very large and comprehensive chapter is devoted to the
description of many processes and process flowsheets for metals recovery, some
historical, some in production, some that have been taken to the pilot stage,
and others not so thoroughly evaluated. Because of the unique mineralogy of the
ore to be treated and the specific solution feed to solvent extraction as well
as other factors such as energy requirements, the economics of the process and
the possible environmental impacts, each flowsheet design will be site specific.
The treatment of slurries (solvent-in-pulp) is also included, as is the
possible use of solvent extraction for the treatment of effluent wastes.
Finally, the economics governing the choice of the solvent extraction process,
together with the economics of specific processes, are discussed.
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