Mozambique – Initial laboratory tests have confirmed that ASX-listed Triton Minerals is able to produce spherical graphite from its Nicanda Hill graphite concentrate.

Triton Minerals is able to produce high purity and quality flake graphite from Nicanda Hill at a fraction of the cost to produce the artificial graphite, which makes Nicanda Hill natural graphite a far more cost effective option in the production high quality spherical graphite for batteries

HIGHLIGHTS:

  • High quality battery-grade spherical graphite produced from Nicanda Hill graphite.
  • Triton positioned to supply to multi-billion dollar battery sector.
  • Spherical graphite ideally suited for lithium ion batteries and energy storage applications.
  • TMG product range expanded.
  • Further optimisation work is ongoing.

Initial tests undertaken on typical Nicanda Hill flake graphite concentrate by a highly reputed American-based laboratory, using jet milling (spheroidisation) equipment, has successfully produced spherical graphite.

Results to date are considered very encouraging and further testing will continue to optimise performance and recoveries rates.

“These tests confirm that Nicanda Hill graphite is ideally suited for the creation of the high value spherical graphite which is the foundation for the energy storage and electric vehicles markets.

“The battery market is an exciting, high growth sector. Triton will investigate incorporating spherical graphite production into future processing operations,” says Triton Minerals MD and CEO Brad Boyle.

Spherical graphite has the potential to substantially increase the range of TMG products and to enhance the future revenue stream of company. Triton will now review the additional options available and consider the benefits of incorporating a scaled production process of spherical graphite into future product streams.

Nicanda Hill flake graphite concentrate was used in the initial tests due to the presence of the naturally occurring high purity finer flake material. The benefits of using this naturally-occurring material directly, is the reduction in the time and costs required to grind the concentrate particles to the required size.

The initial milling test was applied to a sample of Nicanda Hill flake graphite concentrate with an average feed size of less than 100 microns (-140 mesh). The company considers the outcomes of this initial test to be very positive with the successful production of a wide range of spherical graphite particles ranging from 5 to 40 microns.

The spherical graphite industry uses a standard deviation system for classifying particle distribution and they have found that the smaller spherical graphite particle size will create a larger surface area which has a higher density and will increase storage capacity potential of the graphite particle.

Triton confirms the spherical graphite produced in these initial limited tests consisted of an average of 90% distribution at <35 microns, 50% distribution at <13 microns and 10% distribution at <4.5 microns. The spherical graphite was produced by patented air powered jet milling equipment.

Research has found the spherical graphite particle size for Li-ion batteries are split into two main categories. The Li-ion course sizing battery requires spherical graphite with particle sizes ranging from 25 microns to 48 microns, while the fine sizing battery requires spherical graphite with particle sizes ranging from 3 microns to 25 microns.

Therefore, these initial tests demonstrate Triton’s Nicanda Hill graphite is ideally suited for the creation of the spherical graphite and use both categories of the ever growing Li-ion battery market.

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