Altiplano Metals Inc. (TSXV: APN) (WKN: A2JNFG) (“Altiplano” or the “Company”) is pleased to provide an update on the construction phase at the El Peñón processing facility to support the Farellon Iron-Oxide-Copper-Gold (Cu-Au) mine located near La Serena, Chile.
The Company is pleased to report that the magnetic separator and dewatering equipment have arrived at the El Peñón processing facility. In preparation for the installation, the civil work for the four concrete platforms required to support the construction and integrate the equipment into the final processing circuit has begun.
CEO Alastair McIntyre comments “The arrival of this important equipment highlights APN’s commitment to integrate our production activities with our processing operations while focusing on environmentally friendly methods to leverage our bottom line.”
The magnetic separation process uses the magnetic properties of the magnetite mineralization found within the material mined at Farellon. Magnetic iron is recovered by processing the tailings generated from the Cu flotation through a series of three magnetized drums. This process attracts and traps the magnetic mineralization within the circuit (Figure 1). The iron concentrate collected from the drums will be processed further using a disc filter to remove the water. The process will produce a concentrate expected at > 61% Fe with a moisture content of less than 15%. The full magnetic separation and dewatering process is expected to recover 82% of the water which can be reused in the milling and flotation process.
Figure 1. Magnetic Drum
Drying Process for Final Tailings
Concentrates produced by the flotation process will be pumped to a conditioning tank where flocculant will be added to thicken the solution. In this equipment, the solids will decant and compress within their own weight (Figure 2). The resulting precipitated solids are raked to avoid blockages, while the excess water is recovered as overflow and reused in the circuit. Using a high pressure flow, the solution is pumped to a chamber press filter and passed through concave plates to dry the concentrate and recover the water (Figure 3). After each cycle, the plates are opened and the solids are removed and collected for sale. The same circuit is also used for the tailings generated from the copper flotation and the tailings from the magnetic separation processes. Final tailings will be stored in dry stock piles for removal.
Figure 2. Illustration of the Thickening Process.
Figure 3. Chamber Press Filter
Figure 4. Equipment Arrives on Site.
Altiplano has generated greater than US$7.2 million from the recovery and sale of approximately 3.6 million pounds of copper with an average grade of 1.74% Cu (2018 Q1-2021 Q3). Cash flow has been re-invested into equipment, underground drilling, expanding underground development, enhancing ventilation to increase productivity and capacity, and the commencement of the permitted El Peñón fit-for-purpose mill and flotation plant located 15 km from the Farellon site.
Altiplano Metals is a growing gold, silver, and copper company focused on the Americas. The Company has a diversified portfolio of assets that include an operating copper-gold-iron mine, development near term producing gold-copper projects, and exploration land packages with district-scale potential. Altiplano is focused on creating long-term stakeholder value through developing safe and sustainable production, reinvesting into exploration, and pursuing acquisition opportunities to complement its existing portfolio. Management has a substantial record of success in capitalizing on opportunity, overcoming challenges and building shareholder value. Altiplano trades on the Toronto Venture Exchange trading under the symbol APN and the Frankfurt Exchange under the symbol A2JNFG.
John Williamson, B.Sc., P.Geol., a Qualified Person as defined by NI 43-101, has reviewed, and approved the technical contents of this document.