Rare Element Resources
Bear Lodge Project
Canadian NI 43-101 PFS Technical Report
October 9
th
, 2014
10135-200-46 - Rev. 0
18-14
building is estimated at 130 ft. x 360 ft. x 80 ft. height (46,800 ft
2
, or 4,348 m
2
). The
plant ground floor is designed to segregate the containment areas. Major equipment
will be installed on independent steel platforms. The platforms will be completed
using grating and handrails. A 15-ton (13.6 tonne) overhead crane will be installed to
support the maintenance operations.
In addition to the buildings, an outdoor laydown area will be built to receive and store
large pieces of equipment.
The Hydromet facility is designed such that all process areas and process equipment
are contained, and any run-off material will be collected in a sump, and disposed of
properly.
18.2.4.3 Pre-concentrate Handling
The pre-concentrate handling system is composed of an enclosed unloading station,
two storage silos, and three feed conveyors.
The pre-concentrate trucks will use the gate to reach the pre-concentrate unloading
station, located on the southeast corner of the Hydromet facility. The trucks will
discharge their load in an enclosed building to underground hopper. A conveyor will
transport the pre-concentrate from the discharge hopper to the storage silos. The
storage silos will feed the primary and secondary classification area.
18.2.4.4 Primary and Secondary Classification area
The primary and secondary classification system is composed of a cone crusher, roll
crushers, grinding mill, screens, conveyors and tanks. All of the equipment will be
installed at the Hydromet plant in Phase 1 of the project (first nine years of operation)
and relocated to the PUG plant for Phase 2 (in year 10 of operation). The building is
estimated at 80 ft. x 65 ft. x 75 ft. height (5,200 ft
2
, or 483 m
2
) and located on the
southeast side of the main Hydromet building. The building will be built using multi-
level steel platforms for ongoing operation and maintenance needs. Major equipment
will be installed on independent steel platforms. The platforms will be completed
using grating and handrails.
18.2.4.5 Oxalic Acid Handling
The oxalic acid handling system is composed of a storage silo, screw conveyors, and
a dissolution tank. The oxalic acid will be received in bulk bags by truck. The building
