TIDMBHL
RNS Number : 9163O
Bradda Head Lithium Ltd
13 October 2021
13 October 2021
Bradda Head Lithium Ltd.
("Bradda Head", "Bradda", or the "Company")
Metallurgical Test Work Underway with SGS Laboratories
Canada
Bradda Head Lithium Ltd (AIM: BHL), the North America-focused
lithium development group, is pleased to announce that its planned
initial and preliminary metallurgical testwork programme has
commenced with SGS Canada ("SGS") on samples from its 100%-owned
Burro Creek East lithium deposit. Burro Creek East already has a
JORC-compliant resource identified and further drilling to add to
this resource is already underway.
Highlights:
-- Bradda Head Lithium has commenced a metallurgical test work
programme with the highly-regarded SGS Laboratory in Canada. This
programme will build on existing metallurgical work from its 2016
to 2018 programmes and utilise recent developments in lithium clay
processing technology.
-- The Company's primary aim is to develop a suitable process
flowsheet, whereby the target processing cost of Li extraction is
less than US$4,000/t LCE (Lithium Carbonate Equivalent). The
Company views this level as a suitable goal, noting that current
lithium forecasts are pricing the long-term lithium carbonate
market at upwards of US$12,000/t, and current spot prices are close
to US$25,000/t.
-- The programme will also focus on identifying an appropriate
path to produce a low-carbon footprint battery-grade lithium
product.
-- Previous metallurgical test work conducted in 2016 to 2018 by
J.E. Litz and Hazen Research proved that it was possible to extract
78% to 91% of the contained Lithium from Burro Creek East clays,
using acid-leach technology, into an intermediate product. An 80%
recovery was identified using an alternative roasting
technology.
-- The early test work was undertaken assuming smectite-type
clay mineralogy. However, the initial results of the Company's 2021
drill programme at Burro Creek East indicate that the dominant clay
minerology is likely zinnwaldite or possibly tainiolite (pending
detailed petrology and Scanning Electron Microscopy (SEM)), which
may have a significant beneficial variation in the composition of
gangue materials in the lithium clay.
-- Bradda has over 47km(2) of sedimentary claims (with the bulk
of its assets stretching over 25km) (
https://www.braddaheadltd.com/media/image-library/2021-claim-staking/
) around its Burro Creek and Wikieup licences. These license areas
appear to have shared/similar lithium minerology. This license
package is expected to provide a significant increase in our future
resource growth profile in this lithium district.
-- Bradda's Wikieup project, where drilling is due to commence
this quarter, is adjacent to Arizona Lithium Ltd.'s (previously
known as Hawkstone Mining Ltd.) Big Sandy project where
metallurgical testing has demonstrated the viability to produce a
99.8%-purity lithium carbonate from its ore
(https://www.braddaheadltd.com/media/image-library/wikieup-2021-drilling-programme/).
Charles FitzRoy, CEO of Bradda Head, commented:
"We are delighted to have engaged SGS Canada and to commence a
new-look metallurgical test work programme with core from our 2021
Burro Creek East drill programme. This coincides, with our push on
the ground in Arizona, to add further tonnes to our existing JORC
resource.
"Alongside this timely new testwork initiative on our 'Lithium
in Clay' deposits, Bradda Head is pleased to confirm that work is
now underway on all three separate Lithium Projects in Arizona and
Nevada in the USA. Results will be reported as they become
available.
"This is a very exciting time for all of us at Bradda Head as we
push forward in this lithium-hungry market space, particularly in
the USA."
Background
In light of the recent results from the 2021 Burro Creek drill
programme, and developments in clay processing technology by its
peers, Bradda is undertaking fresh metallurgical test work to test
mineralogy, PSD (particle size distribution), and lithium
extraction rates by simple acid leach of lithium clay, and by
rendering gangue materials as refractory (inactive/non-acid
consuming) by using proprietary technology being developed by
Bradda Head and its consultants to reduce acid consumption, lower
processing costs and keep the carbon footprint of its future
operations as low as possible.
Bradda has supplied SGS with samples from its 2021 Burro Creek
East drill programme. The samples will be blended to form a
representative sample from the same hole. The head sample will then
be assayed for full elemental analysis for lithium and all other
impurity elements by ICP, XRF methods.
Mineralogical testing will then be carried out by XRD (X-Ray
Diffraction) process to identify the mineral constituents.
The head sample will then be screened to determine PSD (particle
size distribution) and the various size fractions will be weighed
and analysed. This will be helpful to determine the future course
of action to concentrate the lithium in our clay.
This will be followed by lithium extraction of a small sample to
determine the extraction rate of lithium and other
acid-soluble-associated impurities by acid-leach. The results of
this test work will determine the acid consumption of all the
acid-soluble elements in our mineralised clay. This will be helpful
for us to determine the future course of action to reduce acid
consumption.
As is evident from the initial assays, the possible acid
consumers such as Mg (and possibly Al, Fe, Ca etc.) are present in
varying amounts in our lithium-mineralised clay; the test work has
been extended to observe if a proprietary process to render these
gangue materials fully or partially inactive may work in this type
of lithium mineralised clay. After trying to render these gangue
materials as being as inactive as possible, the sample will be acid
leached to determine acid consumption levels. This test work will
utilise roasting as well, to reduce acid consumption.
For further information please visit the Company's website:
www.braddaheadltd.com
Contact:
Bradda Head Lithium Limited +44 (0) 1624 639 396
Charlie FitzRoy, CEO
Denham Eke, Finance Director
Beaumont Cornish (Nomad)
James Biddle/Roland Cornish +44 20 7220 1666
Peterhouse (Joint Broker) +44 207 469 0930
Charles Goodfellow
Duncan Vasey
Lucy Williams
Shard Capital (Joint Broker) +44 207 186 9927
Isabella Pierre
Tavistock (PR) + 44 20 7920 3150
Nick Elwes braddahead@tavistock.co.uk
Oliver Lamb
Adam Baynes
Notes to Editors
Bradda Head Lithium Ltd. is a North America-focused lithium
development group. The Company currently has interests in a variety
of lithium projects, the most advanced of which are in Central and
Western Arizona: The Burro Creek project (Burro Creek East Project,
and the Burro Creek West Project) and the Wikieup Project.
The Burro Creek East Project has an estimated an Inferred
Mineral Resource (JORC) of 42.6 Mt of lithium bearing clays at an
average grade of 818 ppm of lithium for 185,000 tonnes of lithium
carbonate equivalent (LCE). The Burro Creek East Project also has
additional exploration potential for extensions to the current
model of between 50,000 to 300,000 tonnes of lithium carbonate
equivalent.
The Group intends to continue to develop its three phase one
projects in Arizona, whilst endeavouring to unlock value at its
other prospective pegmatite and brine assets in Arizona, Nevada,
and Pennsylvania.
All Bradda Head's licences are held on a 100% equity basis and
are near the required infrastructure.
Bradda Head is listed on the AIM market of the London Stock
Exchange with the ticker of BHL.
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