Alpha Test Program 7 Scope Increased
Released
Released
Announcement PDF
ASX Release 09 September 2026
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Greenvale Energy Limited ABN: 54000743555 W: greenvaleenergy.com E: admin@greenvaleenergy.com.au
Registered Office: Ground Floor, 41-47 Colin St, West Perth, WA, 6005 Page | 1
ALPHA TEST PROGRAM 7 SCOPE INCREASED, WITH FINAL
PHASE SET TO COMMENCE
Greenvale Energy Limited ASX: GRV (“Greenvale” or “the Company”) is pleased to provide an
update on the current phase of test work being undertaken on the Alpha Project in Queensland
as part of the ongoing Test Program 7 (TP7).
Technix’s scope of work has concluded and the Company is progressing towards a broader
development program with SAMI Bitumen Technologies (“SAMI”). As part of this engagement,the
scope of TP7 has now been expanded to include assessment of multiple commercial product
opportunities in an effort to define the full potential value of the Alpha Project.
The expanded program represents the final phase of Alpha Test Program 7 (TP7) and is designed
to determine what compliant paving-grade bitumen binder, bitumen-type products and/or high-
asphaltene derived products can be produced in a scalable manner.
C-170 certification remains the preferred target, however the program has been structured to
assess alternative paving-grade specifications where the measured properties indicate that
another grade may provide a more technically and commercially appropriate pathway.
Highlights
Technix has concluded its scope of work, providing important technical data on the
processing and modification of material derived from the Alpha Project.
The Technix program identified the importance of resin-to-asphaltene balance, high-
shear mixing and filtration, while defining the remaining stability, adhesion and
elasticity challenges required to meet the C-170 bitumen specification.
Greenvale has now commissionedSAMIBitumenTechnologies toundertake abroader
development assessment that will include blending and modification trials, and
assessment against various AS 2008 paving-grade bitumen requirements.
C-170 remains the preferred target, with alternative standards and specification
grades to be considered depending on the material’s response to blending and
modification.
With a 28Mt Resource – equivalent to 27.7 million barrels of synthetic oil equivalent –
Alpha is a highly strategic project, particularly at a time when Australia remains
dependent on international supply of oil and oil-derived products (including bitumen).
Greenvale Energy Limited ASX Release
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The Alpha Project hosts an Inferred Mineral Resource Estimate of 28Mt of combined Torbanite
and Cannelite for a total of 27.7 million barrels of synthetic oil equivalent1
, reported in
accordance with the JORC Code (2012).
Greenvale Managing Director Alex Cheeseman said:
“While the Technix program has not resulted in a C-170 certification, the program has generated
valuable technical information and demonstrated that Alpha-derived material responds
positively to controlled distillation, compositional adjustment and high-shear processing.
“We are now moving into a broader program with SAMI.
“This is positive and important step forward for Alpha. The new program is designed to maximise
the potential to produce a compliant paving-grade binder while defining the most practical
pathway toward unlocking broader value from the Alpha Project.”
Technix Program Concludes
Technix completed the first phase of its work in July and, over the past two months, has been
assessing the use of its proprietary process to blend and modify the Alpha product, seeking to
produce material that will meet C-170 bitumen specification.
Blending was achieved under pressure and utilising high-speed mixing. The derived material
became more uniform and consistent, demonstrating the importance of controlled high-shear
mixing. Importantly, the process also increased the product viscosity but results did not meet
the C-170 specification.
After consultation between Technix and Greenvale, an oxidation process was incorporated in an
effort to meet the required viscosity target. Viscosity did increase but was still not on-
specification, and also resulted in excessive hardness and asphaltene clustering. As a result, the
Company determined that this processing option did not merit further testing.
The work identified insufficient adhesion and elasticity as the principal remaining technical
challenges to meet the C-170 specification. Technix concluded that the resin-to-asphaltene
balance is a key control on product performance. The potential use of crumb rubber was also
identified as one pathway to improve adhesion and elasticity.
The results have established a clear technical foundation for the final phase of TP7.
SAMI Binder Development Program
SAMI has been commissioned to undertake a staged laboratory-scale program covering residue
preparation, detailed binder characterisation, formulation development and, if successful,
compliance assessment.
Importantly, SAMI will evaluate two principal development pathways. The first will assess
blending the Alpha-derived product with conventional paving-grade bitumen. Blending ratios will
be adjusted based on product performance.
1
Refer to ASX Announcement 51% Increase in Alpha resource substantially expands project scale and potential released 13
November 2023 and Previously Reported Information – Alpha JORC Code (2012) Mineral Resource Estimate
Greenvale Energy Limited ASX Release
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The second pathway will assess modification using compatible additives and controlled
laboratory blending. This work may include compatibility assessment, controlled heating and
mixing, rheological screening and optimisation of formulation and processing conditions.
The objective of this approach is to maximise the practical proportion of Alpha-derived product
incorporated into the final binder, while maintaining compliance with the required industry
standards.
Once the most promising candidate binder has been selected, SAMI will undertake final testing
against the selected AS 2008 paving-grade bitumen specification, with C-170 remaining the
preferred specification. Depending on the measured properties of the final binder,SAMImay also
evaluate whether alternate specifications are a more technically appropriate and/or
commercially viable alternative.
The Program will commence with the receipt of material currently being sent from New Zealand
to SAMI’s R&D centre in New South Wales. The program is expected to take six to eight weeks.
About SAMI Bitumen Technologies
SAMI Bitumen Technologies (“SAMI”) was formed in 1978 to meet a market need for new bitumen
technology. SAMI is the largest bitumen supplier in Australia, supplying the full range of
bituminous products to the Australian roads industry. SAMI’s products constitute the critical raw
material required in the construction of highways, bridges, runways, raceways, container
terminals and local roads.
SAMI’s product range is a “one-stop shop” for all bituminous products required for the
construction of all types of road surfacing, encompasses a wide variety of bitumen grades,
including Polymer Modified Bitumen, Crumb Rubber Modified Bitumen, specialised binders,
bitumen emulsions, cutback bitumen, crack sealant mastics and cold-mix asphalts.
SAMI’s bitumen and asphalt laboratory is a leading facility in the region, renowned for its
advanced capabilities.
Strategic Important of the Alpha Project
The Alpha Project hosts an Inferred Mineral Resource Estimate of 28.6Mt of combined Torbanite
and Cannelite, with preliminary volumetrics of 27.7 million barrels of synthetic oil equivalent.
The market for kerogen-style deposits (such as Alpha) is projected to grow from US$3.58 billion
in 2026 to US$5.51 billion by 20322
, driven by energy-security priorities and demand for domestic
fuels and industrial feedstocks.
The Alpha Project remains strategically relevant at a time when Australia continues to depend on
international supply chains for oil-derived products, including bitumen.
Authorised for release
This announcement has been approved for release by the Board of Directors.
2 Source – Research and Markets Oil Shale Market Report August 2026
Greenvale Energy Limited ASX Release
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For further information please contact
Alex Cheeseman Nicholas Read
Managing Director Read Corporate
E: admin@greenvaleenergy.com.au E: nicholas@readcorporate.com.au
M: +61(0) 485 603 120 M: +61(0)419 929 046
About Greenvale Energy Limited
Greenvale is an ASX-listed exploration company, committed to building a portfolio of projects that will
support the need for clean energy and critical infrastructure. The Company is building a large land holding
in the world-class Pine Creek region of the Northern Territory, and also owns the advanced, high-grade
Oasis Uranium Project in Queensland. The Company has additional new-energy/forward facing projects
including the strategically significant Alpha Project. Greenvale’s projects are all aligned with the global
need for reliable, sustainable, low-emissions energy and supply chains. The Company believes the best
way to create long-term shareholder value is by investing in exploration, to make discoveries and grow its
resource-base.
Competent Person Statement
The information in this announcement, as it relates to exploration results, interpretations and conclusions,
is based on information reviewed by Mr Mark Biggs, who is an independent technical adviser to Greenvale
Energy Ltd and is a Member of the Australasian Institute of Mining and Metallurgy (AusIMM, #10788). Mr
Biggs is a Director of ROM Resources Consultant to the Company, and has sufficient experience that is
relevant to the style of mineralisation and type of deposit under consideration, and to the overseeing of
activities being undertaken to qualify as a Competent Person (as defined in the JORC 2012 edition of the
“Australasian Code for Reporting of Mineral Resources and Ore Reserves”. Mt Biggs consents to the
inclusion of this information in the form and context in which it appears.
Alpha JORC Code (2012) Mineral Resource Estimate
The following information is extracted from the Company’s ASX Announcement 51% Increase in Alpha
resource substantially expands project scale and potential released 13 November 2023. The JORC Code
(2012) Mineral Resource Estimate for the Alpha Deposit is set out in Table 1 and Table 2 below:
Seam/Ply
Area
(m2
)
Volume
(cu m)
Waste
Thickness
(m)
Waste Volume
(bcm)
Tonnes
(Air Dried)
% +/-
(Air Dried)
Tonnes
(Dry)
Tonnes
(In Situ)
U 5,199,146 5,409,700 21 181,383,104 6,491,640 +97% 6,653,931 6,437,543
L1 9,056,464 10,548,503 16 142,970,480 12,995,530 +64% 13,291,114 12,869,174
LT 6,774,137 3,635,190 0 157,694 4,301,324 -6.4% 4,325,876 4,289,524
L2 8,684,433 3,465,159 0 41,993 4,267,732 +49% 4,366,100 4,192,842
Total 28,056,227 +51% 28,637,021 27,789,083
Table 1: MDL 330 Inferred Mineral Resource Estimate by seam and ply unit (plus % +/- from maiden MRE)
Seam/Ply
Inferred Dry
Tonnes
(Mt)
% of Total
Synthetic Oil
(MMboe)
% of
Total
Oil Yield
LTOM
No. of Drill
Holes
U 6.7 23 4.4 16 105 2
L1 13.3 46 8.7 31 104 4
LT 4.3 15 10.7 39 395 4
L2 4.4 15 3.8 14 140 4
Total 28.6 100 27.7 100 154
Table 2: MDL 330 preliminary volumetrics for Mineral Resource Estimate
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Previously Reported Information
This document contains information relating to the Mineral Resource Estimate for the Alpha Project, which
is extracted from the Company’s ASX Announcement 51% Increase in Alpha resource substantially
expands project scale and potential released 13 November 2023 and reported in accordance with the 2012
JORC Code and available for viewing at greenvaleenergy.com.au. The Company confirms that it is not
aware of any new information or data that materially affects the information included in the original
announcement and that all material assumptions and technical parameters underpinning the Mineral
Resource Estimate continue to apply and have not materially changed.
Forward Looking Statements
This announcement may contain certain forward-looking statements and projections. Such forward
looking statements/projections are estimates for discussion purposes only and should not be relied upon.
Forward looking statements/projections are inherently uncertain and may therefore differ materially from
results ultimately achieved. The Company does not make any representations and provides no warranties
concerning the accuracy of the projections and disclaims any obligation to update or revise any forward-
looking statements/projects based on new information, future events or otherwise except to the extent
required by applicable laws.While the information contained in this report has been prepared in good faith,
neither the Company nor any of its directors, officers, agents, employees or advisors give any
representation or warranty, express or implied, as to the fairness, accuracy, completeness or correctness
of the information, opinions and conclusions contained in this announcement.
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Appendix 1 – Sample Details
Table A1-1, below, lists the origin data for the test sample.
Table A1-1: Borehole Data Details for Composite Test Sample
Hole ID Sample ID Easting Northing RL
Total
Depth
(m)
Azimuth (°)
Inclination
(°)
Depth
From
(m)
Depth
To (m)
Interval
(cm)
Seam
GM11C GM11C3 481332 7333200 447 45 0 -90 37.53 37.73 20 LT
GM12C
GM12C5 +
C6
481867 7333226 440 33 0 -90
22.09 22.75 66
LT/L2
GM12C 25.07 25.30 23
GM13C GM13C5 482325 7333171 445 25 0 -90 17.47 17.74 27 LT
GM57C GM57C3 482346 7332917 443 37.7 0 -90 24.72 25.22 50 LT
GM72C GM72C3
483103 7331906 446 42.7 0 -90
36.00 36.08 8 LT
GM72C GM72C4 36.08 36.21 13 LT
GM73C GM73C3
483605 7331921 461 49.05 0 -90
39.40 39.60 20 LT
GM73C GM73C4 39.60 39.75 15 LT
GM78C GM78C3 482041 7333418 445 27 0 -90 18.37 18.71 34 LT
GM80C GM80C4
482545 7333400 452 25 0 -90
16.43 16.49 6 LT
GM80C GM80C5 16.49 16.93 44 LT
GM81C GM81C3 482840 7333389 465 37 0 -90 26.92 27.56 64 LT
Total 390
Note: all coordinates are provided in GDA2020, zone 55
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Appendix 2 - JORC Code, 2012 Edition – Table 1 Report
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria JORC Code explanation Commentary
Sampling
techniques
• Nature and quality of sampling (e.g. cut channels,
random chips, or specific specialised industry standard
measurement tools appropriate to the minerals under
investigation, such as down hole gamma sondes, or
handheld XRF instruments, etc). These examples
should not be taken as limiting the broad meaning of
sampling.
• Include reference to measures taken to ensure sample
representivity and the appropriate calibration of any
measurement tools or systems used.
• Aspects of the determination of mineralisation that are
Material to the Public Report.
• In cases where ‘industry standard’ work has been done
this would be relatively simple (e.g. ‘reverse circulation
drilling was used to obtain 1 m samples from which 3 kg
was pulverised to produce a 30 g charge for fire assay’).
In other cases, more explanation may be required, such
aswhere there is coarse goldthat has inherent sampling
problems. Unusual commodities or mineralisation
types (e.g. submarine nodules) may warrant disclosure
of detailed information.
Samples for metallurgical testing (Test Program 7) were
selected from 2023 exploration drilling, specifically HQ
core as outlined in Appendix 1 (Table A1-1).
Details of the drilling program been provided in previous
ASX releases in October 2023 and May 2025.
Standard drilling and core techniques were employed in
generally shallow holes drilled vertically.
Drilling
techniques
• Drill type (e.g. core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic, etc) and
details (e.g. core diameter, triple or standard tube,
depth of diamond tails, face-sampling bit or other type,
whether core is oriented and if so, by what method, etc).
Standard RAB and diamond HQ coring rigs were utilised.
Drill sample
recovery
• Method of recording and assessing core and chip
sample recoveries and results assessed.
• Measures taken to maximise sample recovery and
ensure representative nature of the samples.
• Whether a relationship exists between sample recovery
and grade and whether sample bias may have occurred
due to preferential loss/gain of fine/coarse material.
All core selected from testing was from boreholes with
core recovery >90%.
Logging • Whether core and chip samples have been geologically
and geotechnically logged to a level of detail to support
appropriate Mineral Resource estimation, mining
studies and metallurgical studies.
• Whether logging is qualitative or quantitative in nature.
Core (or costean, channel, etc) photography.
• The total length and percentage of the relevant
intersections logged.
Detailed logging was not undertaken at the site but later
after sample delivery to the lab. Logging was to the Coal
Log V2 standard.
Whereas previously outcrop sampling of material has
only been used for sighter testing; with all Mineral
Resource estimation, mining, and metallurgical studies
to be developed based evaluation of the core sample
material.
Photographic records have been taken which shows
each horizon sampled and the weight of samples taken
from each sample location has been recorded.
Sub-sampling
techniques and
sample
preparation
• If core, whether cut or sawn and whether quarter, half or
all core taken.
• If non-core, whether riffled, tube sampled, rotary split,
etc and whether sampled wet or dry.
• For all sample types, the nature, quality and
appropriateness of the sample preparation technique.
The bulk sample was taken in substantial quantities of
about 20 kilograms and of both torbanite and cannel
coal portions of the 63mm core. Samples were held by
Stratum and Subsampling for this exercise was
undertaken by Stratum Laboratories.
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Criteria JORC Code explanation Commentary
• Quality control procedures adopted for all sub-
sampling stages to maximise representivity of samples.
• Measures taken to ensure that the sampling is
representative of the in-situ material collected,
including for instance results for field
duplicate/second-half sampling.
• Whether sample sizes are appropriate to the grain size
of the material being sampled.
Splits of approximately 400 grams were cut from
subsamples obtained from Stratum splits of the subcrop
samples. Smaller samples were used in the program to
facilitate subsequent processing in the laboratory.
The splits were pulverised to sub 200 microns
undertaken immediately prior to the tests being
conducted.
Subsamples were cut and placed under nitrogen and
forwarded to Melbourne for the test program at the
Melbourne University.
Quality of assay
data and
laboratory tests
• The nature, quality and appropriateness of the assaying
and laboratory procedures used and whether the
technique is considered partial or total.
• For geophysical tools, spectrometers, handheld XRF
instruments, etc, the parameters used in determining
the analysis including instrument make and model,
reading times, calibrations factors applied and their
derivation, etc.
• Nature of quality control procedures adopted (e.g.
standards, blanks, duplicates, external laboratory
checks) and whether acceptable levels of accuracy (i.e.
lack of bias) and precision have been established.
The subsamples had been held in refrigeration below
zero in sealed bags.
Post pulverization the samples held under nitrogen
overpressure until used.
A range of tests were conducted on the carrier oil and the
sample types to ensure the program could be
meaningfully executed. Subsequent tests were then
undertaken to a standard set of procedures. In all 19
tests were conducted to establish the set of 12 test
result sets.
Laboratory tests were conducted based on standard
analytical techniques such as TGA, Proximate and
Ultimate.
Verification of
sampling and
assaying
• The verification of significant intersections by either
independent or alternative company personnel.
• The use of twinned holes.
• Documentation of primary data, data entry procedures,
data verification, data storage (physical and electronic)
protocols.
• Discuss any adjustment to assay data.
The samples derived from the core have been observed
by multiple personnel including Engineers, Geologists
and Greenvale employees have been involved in the
sample acquisition.
Location of data
points
• Accuracy and quality of surveys used to locate drill
holes (collar and down-hole surveys), trenches, mine
workings and other locations used in Mineral Resource
estimation.
• Specification of the grid system used.
• Quality and adequacy of topographic control.
The samples taken are described in Table A1-1 in
Appendix 1. Coordinate system MGA55 GDA94 datum is
expected to be accurate to +/- 30m.
Data spacing
and distribution
• Data spacing for reporting of Exploration Results.
• Whether the data spacing and distribution is sufficient
to establish the degree of geological and grade
continuity appropriate for the Mineral Resource and Ore
Reserve estimation procedure(s) and classifications
applied.
• Whether sample compositing has been applied.
Not relevant for this discussion of metallurgical testing.
Orientation of
data in relation
to geological
structure
• Whether the orientation of sampling achieves unbiased
sampling of possible structures and the extent to which
this is known, considering the deposit type.
• If the relationship between the drilling orientation and
the orientation of key mineralised structures is
considered to have introduced a sampling bias, this
should be assessed and reported if material.
Not relevant for this discussion of metallurgical testing.
The deposit strikes at 300 degrees with gentle dips to the
south and southwest. The intersecting boreholes were
planned as vertical.
Sample security • The measures taken to ensure sample security. Sampleshavebeenstoredindedicatedfreezers fromthe
time the sample was acquired and after sample
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Criteria JORC Code explanation Commentary
preparation.
Chain of custody was managed by ALS.
Samples have been transported in sealed bags, from
ALS Brisbane to Monash University in Melbourne.
Audits or
reviews
• The results of any audits or reviews of sampling
techniques and data.
No audits or reviews have been conducted.
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
Criteria JORC Code explanation Commentary
Mineral
tenement and
land tenure
status
• Type, reference name/number, location and ownership
including agreements or material issues with third
parties such as joint ventures, partnerships, overriding
royalties, native title interests, historical sites,
wilderness or national park and environmental settings.
• The security of the tenure held at the time of reporting
along with any known impediments to obtaining a
licence to operate in the area.
MDL 330 is held by Alpha Resources Pty Ltd, a subsidiary
of Greenvale Energy Limited. MDL 330 was first granted
on 1 February 2002. An application for a renewal for an
additional 5-year term was submitted in July 2021 and
approved in July 2022.
The current 5-year term expires on 31 January 2027.
MDL 330 covers an area of 1,904.5 Ha.
Exploration
done by other
parties
• Acknowledgment and appraisal of exploration by other
parties.
Historically there has been exploration carried out over
85 years since the 1940’s. The various titles have been
held by Alpha Resources since 2002.
Table A2-1 lists the various explorers:
Geology • Deposit type, geological setting and style of
mineralisation.
The Alpha deposit lies within the axis of the Glen Avon
Syncline, a southwest plunging fold structure that
occurs on the eastern flank of the Galilee Basin.
The deposit is part of the Permian Colinlea Sandstone,
which contains 150 m of cross-bedded sandstones with
minor conglomerate, siltstones, and mudstones.
The Geology of the deposit consists of an Upper and
Lowerseamof cannel witha torbanite lenspresent in the
Lower seam.
The Colinlea Sandstone is thought to be a lower delta
plain deposit with the coal deposited in swamps and
shallow lakes in this near shore environment. The
torbanite is thought to have been deposited from algae
in a lacustrine environment when water entering the
system held little sediment or organic material.
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Criteria JORC Code explanation Commentary
Drill hole
Information
• A summary of all information material to the
understanding of the exploration results including a
tabulation of the following information for all Material
drill holes:
o easting and northing of the drill hole collar
o elevation or RL (Reduced Level – elevation above
sea level in metres) of the drill hole collar
o dip and azimuth of the hole
o down hole length and interception depth
o hole length.
• If the exclusion of this information is justified on the
basis that the information is not Material and this
exclusion does not detract from the understanding of
the report, the Competent Person should clearlyexplain
why this is the case.
See Table A1-1 in Appendix 1, which includes all relevant
new drill hole information and seam intercepts.
All Greenvale and IMC exploration holes have been
either traditional theodolite or DGPS surveyed with
stated accuracies of 0.1m in X & Y and 0.2m in Z.
Top of coal depths are accurate to 0.1m and interpreted
from chip logs / core logging and downhole geophysics,
where carried out.
Where available verticality was loaded, and the holes
were modelled accounting for any inclination. An
alternative model was generated treating all holes as
vertical.
Data
aggregation
methods
• In reporting Exploration Results, weighting averaging
techniques, maximum and/or minimum grade
truncations (e.g. cutting of high grades) and cut-off
grades are usually Material and should be stated.
• Where aggregate intercepts incorporate short lengths of
high-grade results and longer lengths of low-grade
results, the procedure used for such aggregation should
be stated and some typical examples of such
aggregations should be shown in detail.
• The assumptions used for any reporting of metal
equivalent values should be clearly stated.
Torbanite and cannel coal horizons were modelled
separately and not aggregated.
Relationship
between
mineralisation
widths and
intercept
lengths
• These relationships are particularly important in the
reporting of Exploration Results.
• If the geometry of the mineralisation with respect to the
drill hole angle is known, its nature should be reported.
• If it is not known and only the down hole lengths are
reported, there should be a clear statement to this
effect (e.g. ‘down hole length, true width not known’).
All drill holes were drilled at 90° to the surface and
although some verticality logs are available, the deposit
was modelled where holes are assumed to be vertical.
Downhole verticality survey is available for all drill
holes.
Seam intercepts are recorded on a downhole basis.
Downhole geophysical logs were used to confirm the
seam intercepts and thicknesses.
As the deposit is gently dipping and drill holes are
generally shallow, the downhole seam thickness will
approximate the true thickness of the coal.
Diagrams • Appropriate maps and sections (with scales) and
tabulations of intercepts should be included for any
significant discovery being reported These should
include but not be limited to a plan view of drill hole
collar locations and appropriate sectional views.
All appropriate diagrams have been released in
preceding ASX Releases in March 2023 and May 2025
Balanced
reporting
• Where comprehensive reporting of all Exploration
Results is not practicable, representative reporting of
both low and high grades and/or widths should be
practiced to avoid misleading reporting of Exploration
Results.
All available data for the Torbanite area has been
collated and reported.
This release contains all relevant information.
Other
substantive
exploration data
• Other exploration data, if meaningful and material,
should be reported including (but not limited to):
geological observations; geophysical survey results;
geochemical survey results; bulk samples – size and
method of treatment; metallurgical test results; bulk
density, groundwater, geotechnical and rock
characteristics; potential deleterious or contaminating
GEOLOGY
The updated interpretation is predominantly based on
the 2023 and 2021 drilling results.
Limited historical drill hole information was used to
supplement the 2021 and 2023 drilling and support the
continuity of the Upper and Lower seams outside the
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Criteria JORC Code explanation Commentary
substances. bounds of the MDL area.
METALLURGY
Pressure Leach Program – TP7 Update & Process
Direction
TP7 has now confirmed that operating at 410°C with 30-
minute retention, under hydrogen at 80 bar and total
reaction pressure of 26 MPa (260 bar), using zinc acetate
catalyst and toluene solvent, delivers ~99% conversion
of Torbanite into pressure leach liquefaction solution.
Solvent recovery has been validated at ~98.9%, placing
the process in a strong position to eliminate alternative
catalysts and THF solvent pathways, allowing full focus
on the streamlined toluene-based route.
The hydrofoil-type impeller mixing configuration has
proven effective, with pressure-temperature behaviour
closelymatchingthe predicted pressure leachcurve and
demonstrating consistent solution chemistry.
All TP7 samples tested to date are non-blended single LT
core material,
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