• Graphene Yield percentage (from exfoliated portion of graphite) in excess of 90%.
• Graphene Yield percentage (from total graphite) was in excess of 43.6%. With optimization MRL
anticipates the total yield to approach the TGC of the graphite.
• These results from a leading Australian university are particularly exciting as the tests are preliminary
in nature and expected to improve with optimization.
• The process is extremely quick with graphene produced and completed within ten (10) minutes.
Following on from the ASX release of 13 May 2015, in which the Company disclosed it had achieved outstanding results on the recovery of graphene from MRL’s high-grade graphite ore, the directors are pleased to announce further test work has indicated the Sri Lankan graphite provides a very high graphene yield.
With an exfoliation process time of only 10 minutes, 50% of graphite is exfoliated and gave a graphene yield of >90%. The yield calculation of electrochemically exfoliated graphene from MRL’s graphite will be optimized in future proposed studies.
While MRL is of the view that its high grade graphite ore has a ready market at premium prices, these latest test results suggest that MRL should also be positioning itself as a significant, low cost supplier of graphene to the market.
The very high yields being experienced - much higher than any other company has achieved - place the company in a very favourable competitive position Craig McGuckin said “The result is extremely exciting considering the speed of graphene conversion and yield of >90% when compared to conversion rates of 2% to 12% reported by other listed graphite companies.”