CGM. Large flake, high purity graphite Saprolitic deposit in Madagascar. Mining permit granted. Latest test results below.
Table 1: Concentrates from High and Low-Grade Composites
TC = Total Carbon by LECO, LOI = Loss on Ignition at 1000oC
Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 Column 7 1 SizeFraction High Grade Comp Low Grade Comp 2 Mass TC LOI Mass TC LOI 3 µm % % % % % % 4 500 28.4% 98.31 99.49 1.0% 98.52 99.04 5 300 21.3% 98.95 99.35 21.7% 98.52 99.04 6 180 15.4% 98.65 99.25 30.0% 98.92 98.63 7 150 6.6% 99.12 99.28 12.0% 97.29 98.36 8 106 7.0% 98.98 99.21 10.7% 97.11 98.44 9 75 6.0% 99.00 99.20 7.6% 98.17 98.31 10 -75 15.4% 96.53 96.27 17.0% 98.17 97.48 11 Calc Head 100.0% 98.37 98.88 100.0% 98.26 98.45
The flotation test work, based on a standard graphite process flowsheet developed by IMO, demonstrated that coarse high purity graphite flakes can be produced from this standard flowsheet. Photos of +500 µm from the high-grade concentrate shown in Figure 1 reveal flake dimensions to be often in excess of 2 mm.
Flotation testwork based on IMO's standard graphite process flowsheet resulted in a high-grade concentrate from both low and high-grade composites as shown in Table 1 following.
Figure 1: Micrographs of High Grade +500 µm Flake Graphite (picture 1 of 2)
Figure 1: Micrographs of High Grade +500 µm Flake Graphite (picture 2 of 2)
The process flowsheet included rougher flotation, followed by several regrind and cleaner flotation stages.​
High recovery of large flake (> 180 µm) was achieved from both high grade (65% mass) and low grade (53% mass) composites showing potential for recovery of high flake bearing premium concentrates throughout the deposit. Grades of each composite are as follows:
- High Grade Composite Total Carbon Head Grade = 15.7%
- Low Grade Composite Total Carbon Head Grade = 2.6%
- Forums
- Commodities
- 10baggers
10baggers, page-54
- There are more pages in this discussion • 50 more messages in this thread...
You’re viewing a single post only. To view the entire thread just sign in or Join Now (FREE)
Featured News
Featured News
The Watchlist
RDN
RAIDEN RESOURCES LIMITED
Dusko Ljubojevic, MD
Dusko Ljubojevic
MD
SPONSORED BY The Market Online