Rare Element Resources
Bear Lodge Project
Canadian NI 43-101 Technical Report
October 9
th
, 2014
10135-200-46 - Rev. 0
17-69
Oxalate Precipitation Unit
17.17.2
17.17.2.1
Precipitation Reaction Temperature
The precipitation reaction temperature is established at 90 degrees
Celsius as presented in the pilot plants PP5, PP6 and PP7 operated
by SGS Lakefield Inc..
17.17.2.2
Precipitation Reaction Efficiency
Precipitation Efficiencies were established by SGS Lakefield Inc.
during the pilot plant PP6 operation. The precipitation efficiencies are
presented in Table 17-22. Elements not presented in Table 17-22 do
not precipitate under the conditions at which the precipitation reaction
is undertaken.
Table 17.22 - Precipitation Efficiency Dataset
Element
Precipitation
Efficiency
Ce
99.6%
Dy
99.7%
Er
99.2%
Eu
99.9%
Gd
99.9%
Ho
99.2%
La
98.4%
Lu
92.7%
Nd
99.9%
Pr
99.8%
Sc
92.2%
Sm
100.0%
Tb
99.5%
Tm
92.8%
Y
99.9%
Yb
99.3%
Th
100.0%
Ba
14.6%
(SGS Lakefield, 2014)
