Tag Archives: Salta

Fortuna pours first gold at Lindero heap leach mine

Fortuna Silver Mines has reported the first gold pour from its Lindero mine, in the Province of Salta, Argentina.

The pour took place on October 20, 2020, producing 728 oz of gold.

It follows on from the starting of irrigation and leaching of ore placed on the heap leach pad, reported in early September.

Jorge A Ganoza, President, CEO and Director of Fortuna, said: “The first gold pour at Lindero, our third mine in the Americas, is a significant achievement for the company as we advance the mine’s ramp-up phase towards commercial production in the first (March) quarter of 2021. Lindero is a mine with reserves for a projected life of 13 years and is a pillar in Fortuna’s asset portfolio.”

Ganoza continued: “I want to take this opportunity to commend our Salta-based team’s commitment and hard work in achieving this milestone, especially in the context where COVID-19 related restrictions continue to pose multiple limitations.

“If conditions permit, we look forward to hosting an on-site inauguration ceremony of Argentina’s newest gold mine with provincial and federal authorities early next year.”

AIS Resources invests in new solvent extraction process

Lithium-focused AIS Resources says it has signed an option agreement with Ekos Research to invest $1 million in its SOLVEX solvent extraction process.

The 120-day option pact would see AIS take a 15% stake in Ekos.

The SOLVEX process is the culmination of three years of research and development by Ekos Research, the University of Melbourne and the University of Tsinghua (China), according to AIS. This research has seen SOLVEX produce extraction rates exceed 99%, with greater than 99.2% purity lithium produced.

According to AIS, more than 90% of the solvents can be reclaimed using SOLVEX, while the process has 98.5% efficiency in removing major ions such as magnesium, calcium, potassium and boron.

Another potential benefit for AIS, which is currently exploring and developing lithium brine projects in northern Argentina (pictured), is the process looks to be “much more economic” than fractional crystallisation as no ponds are required. This could potentially reduce lithium processing investments by more than 60%, according to AIS.

“It is very efficient at handling high magnesium brines that pose a serious recovery problem using other technologies such as membranes, reverse osmosis, ion exchange and fractional crystallisation,” the company added.

The planned $1 million investment will go towards building a pilot plant in Melbourne that will be subsequently shipped to Salta, Argentina, where brines will be processed to demonstrate commercial viability, AIS said. This could see a pilot plant constructed nine months after the funding is received.