Rare Element Resources
Bear Lodge Project
Canadian NI 43-101 Technical Report
October 9
th
, 2014
10135-200-46 - Rev. 0
13-6
Table 13.4 - REE Extraction at Leach and Precipitation Plants
(SGS Lakefield, 2014)
13.4.3 Waste Streams
In this PFS, the solid waste is comprised of the following:
•
Screen coarse rejects
•
PUG rejects
•
Neutralized leach residue
•
Neutralized mixed base metal hydroxides
•
Calcium chloride solids
•
Thorium-rich precipitate
The average annual production for each waste stream is presented in the Table 13.5
below:
% REE LEACHED
% REE PRECIPITATED
% HYDROMET RECOVERY
(-)
B
C
E
D
(-)
B
C
E
D
La
97
88
95
89
98
La
95.1
86.2
93.1
87.2
Ce
85
86
83
87
100
Ce
85.0
86.0
83.0
87.0
Pr
97
87
95
89
100
Pr
97.0
87.0
95.0
89.0
Nd
96
87
95
89
100
Nd
96.0
87.0
95.0
89.0
Sm 95
87
94
88
100
Sm 95.0
87.0
94.0
88.0
Gd
93
87
94
87
100
Gd
93.0
87.0
94.0
87.0
Tb
93
86
91
85
100
Tb
93.0
86.0
91.0
85.0
Dy
89
84
89
82
100
Dy
89.0
84.0
89.0
82.0
Ho
87
82
87
80
99
Ho
86.1
81.2
86.1
79.2
Er
84
79
83
77
99
Er
83.2
78.2
82.2
76.2
Eu
88
88
94
88
100
Eu
88.0
88.0
94.0
88.0
Tm 83
78
78
75
93
Tm 77.2
72.5
72.5
69.8
Yb
79
75
75
74
99
Yb
78.2
74.3
74.3
73.3
Y
86
81
83
78
100
Y
86.0
81.0
83.0
78.0
Lu
72
70
66
70
93
Lu
67.0
65.1
61.4
65.1
Sc
11
11
7
15
92
Sc
10.1
10.1
6.4
13.8
Th
82
55
73
55
100
Th
82.0
55.0
73.0
55.0
U
67
60
67
61
0
U
0.0
0.0
0.0
0.0
