SOURCE: Searchlight Minerals Corp.
December 11, 2008 06:00 ET
Searchlight Minerals Corp. Provides Clarkdale Operations Update
Company on Track to Complete Initial Precious and Base Metals Production Module by Year-End
HENDERSON, NV--(Marketwire - December 11, 2008) - Searchlight Minerals Corp. (OTCBB: SRCH) (the
"Company"), is pleased to provide investors with the following update on
development and construction activities at its Clarkdale Slag Project in
UPDATED STATUS REPORT
Searchlight Minerals continues to close in on the completion of the
Company's initial 100 to 250 ton-per-day (tpd) commercial production module
for the extraction of precious and base metals from its 20 million-ton slag
pile in Clarkdale, Arizona.
The slag pile is located approximately six miles from the historic United
Verde Copper Mine in Jerome, Arizona, which produced some of the richest
copper ore ever mined in the U.S. Clarkdale housed a smelter operation for
the United Verde Mine, and when smelting activities ceased in 1947, a
45-acre metal-bearing slag pile was left at the Clarkdale site. Independent
engineers, operating under chain-of-custody procedures, have estimated that
the slag pile is comprised of approximately 20.2 million tons of material
containing approximately 0.50 ounces of gold per ton, along with silver,
copper, zinc and a ferro silicate byproduct.
Earlier this year, the Company completed the renovation of a 26,000 sq. ft.
building at the Clarkdale site and received a Certificate of Occupancy from
the Town of Clarkdale. The building houses the major components of an
initial production module designed to extract the precious and base metals
from the slag material. All primary equipment items, including conveyor
systems, impact mills, a vibratory mill, leaching tanks, filter presses,
ion exchange systems and lab equipment have been installed in the building.
Presently, the Company is focused on integrating the component systems into
a fully functioning continuous processing module.
As each component system is installed, initial tests are conducted to
assure the integrity of that component, as well as the integrity of the
systems with which that component interacts. Currently, the grinding
circuit is fully operational. This circuit begins at the hopper, where
crushed slag is introduced into the system. The slag continues through a
fully enclosed system consisting of weigh-belts, conveyors, impact mills,
and sizing screens. All dust is retained and filtered within the enclosed
system by a fully automated air purification system. The material is next
introduced into a large (50 ton) vibratory grinder, the final and most
critical piece of equipment in the grinding circuit. The Company recently
experienced a set-back of several weeks in its attempts to fully integrate
the grinding circuit with the vibratory grinder. Systems engineers
determined that it was necessary to add additional reinforcement to the
floor, in order to reduce vibration throughout the building. Such
reinforcement is now complete, and the vibratory mill has been re-connected
to the system.
Upon exiting the grinding circuit, the slag, which now exists in a slurry
form due to the introduction of water in the vibratory grinder, is pumped
into the agitation and leaching circuits. In the leaching circuit, precious
and base metals are dissolved into solution. Some additional minor delays
were experienced in commissioning the agitator shafts in the leach tanks,
but engineered components that resolve this issue should be installed and
operational by the end of this week.
The next step is the very critical filtration system, which separates the
solids, primarily iron and silica (ferro silicates) from the dissolved
metals that are in solution. The filtration system is also being tested and
commissioned this week. The final phase of processing in the main
production building involves the Ion Exchange equipment that removes gold,
silver, copper and zinc from the metals-bearing solution and loads the
metals onto highly selective collecting resins. These components in the
main building should be fully integrated into the system and operational
during the week of December 15, 2008.
The next stage of the process involves electrowinning (EW), which converts
copper and zinc from solution to plated metal. As noted in previous
reports, this system is housed in a separate building that is currently
under construction. The EW building is nearing completion, and the Company
expects to receive a Certificate of Occupancy from the City of Clarkdale
during the third week of December. The copper EW system has been installed,
the electrical and control rooms are presently being completed, and the
zinc EW system is being set in place. Upon completion of the EW building,
the Company expects to commence operating its initial commercial production
module in early January 2009.
The Company has successfully overcome the numerous challenges that are
inherent in the design and construction of complex, engineered systems.
Management had originally hoped to complete the testing of the critical
grinding circuit while the rest of the equipment was being installed in the
building, but the vibratory mill issue prevented this from being
accomplished. However, the Company expects to achieve its goal of
completing the production module by year end. Presently, the Company is
taking the necessary steps to commence full-scale operation of the
demonstration production module. Operating crews are being hired,
coordinated and trained for multi-shift operations, commencing in January.
"We are very pleased with the overall success we have achieved in moving
toward completion of our initial 100 to 250 tpd production module, which is
designed to demonstrate the feasibility of a planned 2,000 tpd facility,"
stated Ian McNeil, Chief Executive Officer of Searchlight Minerals Corp.
"Precise time frames are extremely difficult to anticipate in a project of
this complexity. The devil is in the details -- every circuit in the system
is comprised of numerous components, and every component contains many
parts. Throughout the construction process, our employees worked closely
and effectively with outside contractors to address any delays we
encountered on a timely basis."
"The Company's next milestone, after receiving the Certificate of Occupancy
for the EW building, will involve the commencement of full-scale operations
in early January 2009," continued McNeil. "Once all systems are fully
integrated and operational, our focus will shift to the fine tuning of the
system, in order to optimize the production of the valuable minerals
residing in the slag."
"Completion of the initial production module will represent an enormous
achievement for Searchlight Minerals, following which we will be able to
focus entirely upon proving the economic viability of our recovery
process," concluded McNeil.
The objective of this update, and others that will follow, is to allow our
stockholders to more fully appreciate the Company's interim accomplishments
and progress towards its stated goals and objectives.
About Searchlight Minerals Corp.
Searchlight Minerals Corp. is a minerals exploration company focused on the
acquisition and development of projects in the southwestern United States.
The Company is currently involved in two projects: (1) the Clarkdale Slag
Project, located in Clarkdale, Arizona, is a reclamation project to recover
precious and base metals from the reprocessing of slag produced from the
smelting of copper ores mined at the United Verde Copper Mine in Jerome,
Arizona; and (2) the Searchlight Gold Project, which involves exploration
for precious metals on mining claims near Searchlight, Nevada. The
Clarkdale Project is the more advanced of two ongoing projects that the
Company is pursuing. The Searchlight Gold Project is an early-stage gold
exploration endeavor on 3,200 acres located approximately 50 miles south of
Las Vegas, Nevada.
Searchlight Minerals Corp. is headquartered in Henderson, Nevada, and its
common stock is listed on the OTC Bulletin Board under the symbol "SRCH."
Additional information is available on the Company's website at
www.searchlightminerals.com and in the Company's filings with the U.S.
Securities and Exchange Commission.
This Press Release may contain, in addition to historical information,
forward-looking statements. Statements in this news release that are
forward-looking statements are subject to various risks and uncertainties
concerning the specific factors disclosed under the heading "Risk Factors"
and elsewhere in the Company's periodic filings with the U.S. Securities
and Exchange Commission. When used in this news release, the words such as
"could," "plan," "estimate," "expect," "intend," "may," "potential,"
"should," and similar expressions, are forward-looking statements. The risk
factors that could cause actual results to differ from these
forward-looking statements include, but are not restricted to the Company's
limited operating history, uncertainties about the availability of
additional financing, geological or mechanical difficulties affecting the
Company's planned geological or other work programs, uncertainty of
estimates of mineralized material, operational risk, environmental risk,
financial risk, currency risk and other statements that are not historical
facts as disclosed under the heading "Risk Factors" and elsewhere in the
Company's periodic filings with securities regulators in the United States.
Consequently, risk factors including, but not limited to the
aforementioned, may result in significant delays to the projected or
anticipated production target dates.