Freeman has recently received metallurgical results from tests
conducted on two composite samples by Base Metallurgical
Laboratories Limited, Kamloops, in
conjunction with Ausenco Engineering Canada Ltd. The final
metallurgical flowsheet resulted in significant cost savings and
operational efficiencies. These include:
- 5-10% reduction in energy costs associated with
milling;
- 50% reduction in leach circuit time from 36 hours to 24
hours;
- Combined gold recoveries from two composite samples of 96.3%
to 97.5% respectively;
- Testing returned a high level of gravity recoverable gold
(58%) indicating the flowsheet would benefit by including a
gravity circuit;
- No pre-oxidation step required; and
- Leach reagent consumption (cyanide) remains moderate and in
line with previous and historical metallurgical tests.
TSX Venture Exchange: FMAN
VANCOUVER, BC, July 31,
2023 /CNW/ - Freeman Gold Corp. (TSXV: FMAN)
(OTCQX: FMANF) (FSE: 3WU) ("Freeman" or the
"Company") is pleased to announce results of the ongoing
metallurgical work by Base Metallurgical Laboratories Limited,
Kamloops, in conjunction with
Ausenco Engineering Canada Ltd. as part of Freeman's Preliminary
Economic Assessment ("PEA").
Freeman submitted two large shipments of drill core to refine
process development aspects of the Lehmi gold deposit. Two
master composites were created from the drill core, and each
composite was assayed for gold in duplicate. Master Comp 1
("MC1") and Master Comp 2 ("MC2") contained 1.94 and
1.18 grams per tonne gold ("g/t Au") respectively.
Metallurgical testing included gravity tests on MC1 and development
cyanide leaching on each MC1 and MC2. An oxygen uptake rate
("OUR") test and 10-kg bulk gravity and cyanide test were
also completed using MC2 to generate feed cyanide destruction and
solid-liquid separation optimization testing. Gravity gold
concentrate generated were submitted to intensive cyanidation
leaching test to assess leachability of the gravity recoverable
gold for each composite.
Cyanide leach testing evaluated the effect of grind size between
110 and 175 microns ("µm") on gold recoveries using
gravity and Carbon-in-Leach
("CIL") circuits. Results showed limited variance in leach
performance with increased grind size. Based on the results, an
optimized flowsheet was selected which consists of a grind target
of 150 µm, a gravity circuit and 24-hour retention cyanide
leaching. This flowsheet produced combined gold recoveries of 97.5%
and 96.3% for MC1 and MC2 respectively. Furthermore, leaching with
and without activated carbon (i.e. direct leach vs. CIL) did not
show evidence of preg-robing conditions. Previous studies had
determined a target grind of 110 µm and 36-hour retention
times. The selection of a larger grind size of 150 µm could
result in a 5-10% reduction in energy costs associated with
grinding, while the reduced retention time could favourably impact
capital expenditures. An OUR test was completed on MC2 during which
very low O2 consumption was noted, indicating no pre-oxidation step
will be required in the flow sheet.
In addition, 20 kg of material from sample MC1 was
subjected to Extended Gravity Recoverable Gold ("EGRG")
testing to determine gravity gold recovery amenability. Test
results contained a high level of gravity recoverable gold of 58%.
These high range results suggest that the inclusion of a gravity
gold concentration would enhance recoveries and lower costs and
that it be included in the PEA.
In summary, this latest round of testing has determined:
- the target grind size has now been reduced from P80 of 110 to
150 µm which will result in approximately a 5-10 percent
("%") reduction in installed power necessary during ore
processing.
- a reduced leach circuit time from 36 to 24 hours, resulting in
significant capital cost savings.
- EGRG testing returned a high level of gravity recoverable gold
(58%).
- Sample gold recoveries of 96.3% and 97.5% using these new
parameters, averaging 96.9%.
- Oxygen consumption is very low and demand can be satisfied by
air addition.
- The overall leach reagent consumption (cyanide) is moderate and
in line with previous and historical metallurgical tests.
These positive recovery results may directly reduce operating
and up-front capital costs.
Paul Matysek, Executive Chairman
of the Company, stated, "We are very pleased with the latest round
of metallurgical testing. The Lehmi deposit has clearly shown
excellent metallurgical response in terms of recovery percentages
and rates, as well as reagent use and consumption. These
improvements will directly result in a more robust economic
assessment and be reflected in our soon to be released PEA.
Freeman is currently working to finalize all aspects of the PEA
and recommendations in Q3 2023. The timing of the PEA release has
been lengthened because of various additional trade off studies
aimed to maximize Lehmi's project economics. These included
minimizing in-pit mining dilution by looking at various bench
mining levels and incorporating results from latest metallurgical
testing.
The Company and certain directors and officers of the
Company have mutually agreed to cancel certain stock options (the
"Cancelled Options") exercisable to acquire an aggregate of
2,450,000 common shares of the Company. These Cancelled Options
consist of an aggregate of 1,450,000 stock options that were
granted on May 27, 2020 (expiring
May 27, 2025), and 1,000,000 stock
options that were granted October 5,
2020 (expiring October 5,
2025), all with an exercise price of $0.60 per common share. No consideration was paid
for the surrender of the Cancelled Options. Following this
cancellation of stock options, the Company has a total of 9,575,000
stock options outstanding.
Qualified Person
The scientific and technical information in this news release
has been reviewed and approved by Dean
Besserer, P.Geo., Vice-President of Exploration of the
company and a Qualified Person as defined in National Instrument
43-101.
About the Company and
Project
Freeman Gold Corp. is a mineral exploration company focused on
the development of its 100% owned Lemhi Gold property (the
"Project"). The Project comprises 30 square kilometres of
highly prospective land, hosting a near-surface oxide gold
resource. The pit constrained mineral resource prepared in
accordance with National Instrument 43-101, comprises
988,100 oz gold ("Au") at 1.0 grams per tonne
("g/t") in 30.02 million tonnes (Measured & Indicated)
and 256,000 oz Au at 1.04 g/t Au in 7.63 million
tonnes (Inferred). The Company is focused on growing and advancing
the Project towards a production decision.
On Behalf of the Company
William Randall
President and Chief Executive Officer
Neither the TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in the policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release.
Forward-Looking Statements: This press release
contains "forward‐looking information or statements" within the
meaning of Canadian securities laws, which may include, but are not
limited to statements relating to exploration, results therefrom,
and the Company's future business plans. All statements in this
release, other than statements of historical facts that address
events or developments that the Company expects to occur, are
forward-looking statements. Forward-looking statements are
statements that are not historical facts and are generally, but not
always, identified by the words "expects," "plans", "anticipates",
"believes", "intends", "estimates", "projects", "potential" and
similar expressions, or that events or conditions "will", "would",
"may", "could" or "should" occur. Although the Company believes the
expectations expressed in such forward-looking statements are based
on reasonable assumptions, such statements are not guarantees of
future performance and actual results may differ from those in the
forward-looking statements. Such forward-looking information
reflects the Company's views with respect to future events and is
subject to risks, uncertainties, and assumptions. The reader is
urged to refer to the Company's reports, publicly available through
the Canadian Securities Administrators' System for Electronic
Document Analysis and Retrieval (SEDAR) at www.sedar.com for a more
complete discussion of such risk factors and their potential
effects. The Company does not undertake to update forward‐looking
statements or forward‐looking information, except as required by
law.
View original content to download
multimedia:https://www.prnewswire.com/news-releases/freeman-improves-average-gold-recoveries-to-96-9-and-leach-circuit-time-by-50-for-the-lemhi-gold-deposit-idaho-301888989.html
SOURCE Freeman Gold Corp.