TSXV: CYP | OTCQB: CYDVF
VANCOUVER, BC, Oct. 13, 2021 /CNW/ - Cypress Development
Corp. (TSXV: CYP) (OTCQB: CYDVF) (Frankfurt: C1Z1) ("Cypress" or "the
Company") is pleased to report that the assembly of the pilot
plant for the Company's 100%-owned Clayton Valley Lithium Project
in Nevada is complete. The pilot
plant is located at a metallurgical facility approximately 100
miles south of the project. Purchasing of items for the pilot plant
began in March and work progressed through the summer. With
assembly and operational testing of component equipment finished,
test extraction of lithium from the project's sample material will
begin next week. The pilot plant will utilize chloride-based
leaching combined with the Chemionex—Lionex process for direct
lithium extraction (DLE), as described in previous
announcements.
"The completion of the pilot plant represents a significant
milestone and marks the culmination of months of work by Cypress,
our consultants, and contractors" stated Bill Willoughby, President and CEO of Cypress.
"This work, under the direction of Continental Metallurgical
Services and supported by the management and personnel of del Sol
Refining, Inc., has resulted in a pilot plant that embodies the
research that went into our process flowsheet. The testing ahead
will be one of the larger piloting efforts to extract lithium from
clay in the world, and the only one based on a chloride approach to
leaching. While the ultimate goal is to demonstrate the production
of lithium hydroxide from our claystone resource on a larger scale,
the results from the various areas within the plant, from leaching
and tailings handling, to solution treatment and recycling,
chemical usage and water balance, will provide the data necessary
to carry the project forward to the feasibility level."
The Company's pilot plant is configured to use chloride-based
leaching to liberate the lithium from the project's claystone. This
was based on results from an internal scoping study completed in
January 2021, which determined
additional benefits in the areas of economics, process, and the
environment when using a chloride-based rather than a
sulphate-based leaching process. The sulphate-based process remains
a viable alternative as detailed in the project's Pre-Feasibility
Study (PFS, effective Date August 5,
2020 and amended March 15,
2021).
Pilot Plant Program Objectives
The pilot plant is intended to confirm the extraction of lithium
from the Company's Clayton Valley Lithium Project, in following the
recommendations outlined in the Company's PFS.
There are four main sections in the pilot plant: leaching,
tailings handling, pregnant leach solution (PLS) treatment and the
Chemionex—Lionex DLE process area. Two additional processing steps
will be conducted off-site at NORAM Engineering and Construction,
Ltd's B.C. Research Laboratory in Richmond, Canada; these steps will take the concentrated
lithium solution and a portion of the depleted solution following
DLE for the production of lithium hydroxide and the generation of
hydrochloric acid and sodium hydroxide.
Each section in the pilot plant has specific objectives. The
leaching section will work to improve leach conditions and confirm
lithium extraction into PLS. Testing of various feed size and grade
of the claystone, reagent mixtures, and water balance will aid in
optimization at scale.
The tailings handling section will utilize a counter current
decantation arrangement of thickener settlers and flocculant
mixing, with the objective of determining materials handling,
moisture content and water consumption. Testing in this stage will
provide key information for water requirements and design of
tailings facilities.
The PLS treatment section will remove impurities prior to
introduction into the DLE process through two-stage neutralization
and filtration, a tertiary stage will follow the DLE process prior
to recycling of solution back to leaching.
The DLE section consists of Chemionex's—Lionex DLE technology
and will test compatibility of the PLS to be further concentrated
with this process. Cypress was granted an option, upon completion
of the pilot plant program, to license this process for commercial
use at its project.
The final two steps will be conducted by NORAM Engineering,
these will treat the concentrated lithium solution from the DLE
portion of the pilot plant to produce lithium hydroxide and test
the stripped leach solution for compatibility for recycling to the
leaching section of the plant.
Pilot Plant Photos
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About Cypress Development Corp
Cypress Development Corp. is a Canadian advanced stage
lithium exploration company, focused on developing its 100%-owned
Clayton Valley Lithium Project in Nevada,
USA. Work completed by Cypress led to the discovery of a
world-class resource of lithium-bearing claystone adjacent to the
Albemarle Silver Peak mine, North
America's only lithium brine operation. The results of a
positive Pre-Feasibility Study for the Clayton Valley Lithium
Project were announced by Cypress Development in August 2020. Cypress Development trades on the
TSX Venture Exchange under the symbol CYP, and on the OTCQB under
the symbol CYDVF.
ON BEHALF OF CYPRESS DEVELOPMENT CORP.
WILLIAM WILLOUGHBY, PhD., PE
President & Chief Executive Officer
www.cypressdevelopmentcorp.com
NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES
PROVIDER ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THE
CONTENT OF THIS NEWS RELEASE.
Cautionary Note Regarding Forward-Looking
Statements
This release includes certain statements that may be deemed
to be "forward-looking statements". Forward-looking statements
are subject to risks, uncertainties and assumptions and are
identified by words such as "expects," "estimates," "projects,"
"anticipates," "believes," "could," "scheduled," and other similar
words. All statements in this release, other than statements
of historical facts, that address events or developments that
management of the Company expects, are forward-looking statements.
Although management 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 or developments may differ materially from those in
the forward-looking statements. The Company undertakes no
obligation to update these forward-looking statements if
management's beliefs, estimates or opinions, or other factors,
should change. Factors that could cause actual results to differ
materially from those in forward-looking statements, include market
prices, exploration, and development successes, continued
availability of capital and financing, and general economic, market
or business conditions. Please see the public filings of the
Company at www.sedar.com for further information.
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SOURCE Cypress Development Corp.