Armadale Capital Plc Excellent Test Results for Mahenge Liandu Graphite Concentrate
April 21 2017 - 3:31AM
UK Regulatory
TIDMACP
Armadale Capital Plc / Index: AIM / Epic: ACP / Sector:
Investment Company
21 April 2017
Armadale Capital Plc ('Armadale' or 'the Company')
Excellent Test Results for Mahenge Liandu Graphite
Concentrate
Armadale, the AIM quoted investment company focused on natural
resource projects in Africa, is pleased to announce that test work
results received from graphite concentrate samples underpin the
commercial viability of graphite mineralisation at the Mahenge
Liandu Project in Tanzania ('the Project'). The results of the test
work confirm the expandability of the graphite mineralisation at
the Project, which increases the range of potential commercial
applications, including the highly prospective battery market. The
Project has a high-grade JORC compliant inferred mineral resource
estimate of 40.9Mt @ 9.41% Total Graphitic Content ('TGC'), of
which at least 32Mt has an average grade of 10.47% TGC.
Highlights:
-- Test work conducted in Germany has returned encouraging results with
expansion up to 480 cm³/g
-- All size fractions above 75µm showing expandability over 170
cm³/g
-- Results underpin the Project's ability to produce high quality,
commercial graphite concentrates which should be suitable for a
number
of applications
-- Ongoing test work to upgrade the purity of the graphite is underway
-- Preparations for a 2,500m diamond and Reverse Circulation drill
programme are well advanced with drilling expected to commence
in
early May 2017 - the drilling programme is intended to expand
the size
of the resource and enhance the category to Indicated
Nick Johansen, Director of Armadale said, "We continue to make
excellent progress in proving up the commercial viability of
Mahenge Liandu and this test work marks another step in the right
direction. With expansion of up to 480 cm³/g achieved, we are
pleased to confirm that our graphite concentrate is suitable for
use in the expandable graphite market for all size fractions above
75µm which is a significant achievement given that a recent 10kg
sample contained over 92% of graphite 75µm and above in size. Our
focus is now on proving up the purity of the concentrate and
building upon the resource size and quality. With this in mind we
look forward to updating the market on our upcoming drill programme
in due course."
Further Information
Initial expandability test work was conducted on a 150g sample
of graphite concentrates from the Mahenge Liandu Project. The
results show encouraging expandability, especially in the larger
size fractions including 480 cm³/g > 500 µm, 420 cm³/g for >
500 µm and 380 cm³/g> 180 µm. The results for all size fractions
are shown in Table 1 below at two different temperatures that were
used.
Table 1 Results of expandability test work at 800 °C and 1000
°C
Flake Size (µm) Expansion Volume at 800 °C Expansion Volume at 1000 °C
> 500 µm 440 cm³/g 480 cm³/g
> 300 µm 370 cm³/g 420 cm³/g
> 180 µm 300 cm³/g 380 cm³/g
> 106 µm 210 cm³/g 230 cm³/g
> 75 µm 165 cm³/g 170 cm³/g
< 75 mesh 115 cm³/g
Expandable Graphite
Expandable graphite is made by heating graphite concentrates to
cause the graphite crystals to split into graphene layers into an
expanded or "fluffy" form. The expanded graphite is then rolled
into continuous sheets which have excellent conductivity and
thermal dissipation properties.
Expandable graphite is essential in the manufacture of:
-- Graphite foils used in electronics products for heat dissipation
-- Graphite foil used in high-temperature applications such as gaskets
and thermal barriers
-- Thermal insulation with flame retardant properties
-- Fire retardant paints
The graphite concentrate used to produce the expandable graphite
was primarily medium to large flake with 85.2 % in the >106 µm.
The flake size distribution is shown in Table 2below;
Table 2 Flake size distribution of graphite concentrate used in
the test work
Size fraction (µm) Size fraction %
> 500 9.80%
> 300 15.50%
> 180 35.10%
> 106 24.80%
> 75 6.40%
< 75 8.40%
Conclusion
Initial test work continues to indicate the Mahenge Liandu
Project is capable of producing high quality graphite concentrates.
A more detailed metallurgical test work programme will be conducted
as part of the upcoming exploration programme.
The information communicated in this announcement contains
inside information for the purposes of Article 7 of the Market
Abuse Regulation (EU) No. 596/2014.
**ENDS**
For further information please visit www.armadalecapitalplc.com
or contact:
Enquiries:
Armadale Capital Plc +44 20 7236 1177
Nick Johansen
Nomad and broker: finnCap Ltd +44 20 7220 0500
Christopher Raggett / Simon Hicks
Joint Broker: Beaufort Securities Limited +44 20 7382 8300
Jon Belliss
Press Relations: St Brides Partners Ltd +44 20 7236 1177
Susie Geliher / Charlotte Page
Notes
Armadale Capital Plc is focused on investing in and developing a
portfolio of investments, targeting the natural resources and/or
infrastructure sectors in Africa. The Company, led by a team with
operational experience and a strong track record in Africa, has a
strategy of identifying high growth businesses where it can take an
active role in their advancement.
The Company owns the Mahenge Liandu graphite project in
south-east Tanzania, which is now its main focus. The Project is
located in a highly prospective region with a high-grade JORC
compliant inferred mineral resource estimate of 40.9Mt @ 9.41% TGC.
At least 32Mt of this resource has an average grade of 10.47% TGC,
one of the largest high-grade resources in Tanzania, and work to
date has demonstrated Mahenge Liandu's potential as a commercially
viable deposit with significant tonnage, high-grade coarse flake
and near surface mineralisation (implying a low strip ratio)
contained within one contiguous ore body.
Other assets Armadale has an interest in include the Mpokoto
Gold project in the Democratic Republic of Congo and a portfolio of
quoted investments.
View source version on businesswire.com:
http://www.businesswire.com/news/home/20170421005194/en/
This information is provided by Business Wire
(END) Dow Jones Newswires
April 21, 2017 04:31 ET (08:31 GMT)
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