NI43-101Pre-Feasibility Study Report - page 570

Rare Element Resources
Bear Lodge Project
Canadian NI 43-101 PFS Technical Report
October 9
, 2014
10135-200-46 - Rev. 0
million. Additional infrastructure costs may also be needed depending on the final
location of the plant.
26.4.2 Reagent Confirmation
Reagent consumption and concentration derived from pilot plant testing will be
26.4.3 Process Characterization Confirmation
Process characterization confirmation will involve the characterization of the
various streams of the process through large-scale pilot plant testing. The testing
will involve:
Characterization of the off-gases from the kiln as well as the treatment of
these gases;
Characterization of the effluents with regard to uranium and thorium
Characterization of the chloride stream with regard to the cations present
in solution.
26.4.4 Material Handling Confirmation
Various material handling steps will be required within the design of the Hydromet
plant. Confirmation of these material handling steps will be done on the slurries
from the Hydromet plant and will include:
Filtration testing and wash efficiency;
Settling testing;
Slurry characterization and flow testing.
26.5 Process Studies Cost
Cost estimates for these studies are preliminary and will be refined once a more
defined scope has been developed.
26.5.1 Separation of Rare Earth Oxide Product
Testing is required to determine the process required to separate the rare earth
oxide product into either individual elements or groups of elements to increase the
value of the products to be marketed. In conjunction with this work, market
studies will be undertaken to determine what additional separation will provide the
highest return on investment. The cost for bench scale tests to develop a process
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