Mar 7, 2021

Tesla partners with New Caledonia to secure nickel supply

Tesla
New Caledonia
Nickel
Vale
Daniel Brightmore
2 min
Elon Musk, Tesla
Political leaders in New Caledonia agreed terms for the sale of Vale’s nickel mine, including majority stakeholding for local interests...

Electric vehicle maker Tesla will become a technical adviser at the New Caledonia nickel mine as part of the company’s attempt to secure stocks of the essential battery metal, reports Reuters.

The deal signed by pro-independence and loyalist leaders in the French Pacific territory cited a “technical and industrial partnership” with Tesla, under which the electric car company would source raw materials for batteries.

Brazilian miner Vale’s decision last year to sell its nickel mine and processing plant to a consortium including Swiss commodity trader Trafigura sparked fierce opposition from pro-independence groups.

Violent protests led Vale to shut down the site in December.

Under the recent agreement, political groups proposed that a 51% stake in the Vale operations be held by New Caledonia’s provincial authorities and other local interests. Trafigura would have a 19% stake, less than the 25% planned in the initial sale deal with Vale.

The parties also called for reinforced environmental standards and set a target for the mining complex to be carbon neutral by 2040.

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Vale and Trafigura welcomed the political agreement.

“Our task now is to complete any and all outstanding items to allow the transaction to formally conclude,” Vale said in a statement.

The company, which has tried to sell the New Caledonian assets for years, has said around 3,000 direct and indirect jobs depend on the restart of its mining complex.

“We’re looking forward to operations resuming and for final completion of the transaction as soon as possible,” a Trafigura spokesperson said.

Tesla did not immediately respond to a request for comment.

The electric vehicle maker would act as an industrial partner to help with product and sustainability standards as well as taking some supply for its battery production, according to the political agreement.

Demand for nickel, mainly used in making stainless steel, is expected to be boosted by demand for electric vehicle batteries.

New Caledonia is the world’s fourth-largest nickel producer. Its nickel industry also includes the SLN subsidiary of French mining group Eramet and a joint venture between commodity group Glencore and New Caledonia’s northern province.

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Jun 16, 2021

Rio Tinto partners with ARENA for green hydrogen research

Rio Tinto
Hydrogen
Green Energy
Sustainability
3 min
Rio Tinto and the Australian Renewable Energy Agency (ARENA) will study using hydrogen to reduce carbon emissions in alumina refining

Rio Tinto has partnered with the Australian Renewable Energy Agency (ARENA) to study whether hydrogen can replace natural gas in alumina refineries to reduce emissions.

Rio Tinto and ARENA partnering for green energy push

Rio Tinto will conduct a $1.2mn feasibility study, equally funded with ARENA through a $580,000 grant, into using clean hydrogen to replace natural gas in the calcination process of refining at the Yarwun alumina refinery in Gladstone.

The study program includes work to be done at Rio Tinto’s Bundoora Technical Development Centre in Melbourne, where Rio Tinto’s in-house development capability has now been extended to hydrogen.

ARENA CEO Darren Miller commented: “If we can replace fossil fuels with clean hydrogen in the refining process for alumina, this will reduce emissions in the energy and emissions intensive refining stage of the aluminium supply chain. Exploring these new clean energy technologies and methods is a crucial step towards producing green aluminium.

“This study will investigate a potential technology that can contribute to the decarbonisation of the Australian alumina industry. If successful, the technical and commercial lessons from Rio Tinto’s study could lead to the implementation of hydrogen calcination technology, not only in Australia, but also internationally.”

Rio Tinto Aluminium Pacific Operations acting managing director Daniel van der Westhuizen added: “We see the ARENA and Rio Tinto-funded study as a step towards reducing refinery emissions and one that has the potential to play an important part in Rio Tinto’s commitment to decarbonisation.

“We’re investing in work that needs to be done, not only to decarbonise one of our sites, but also to help provide a lower-emissions pathway for Rio Tinto and the global aluminium industry.

“We recognise we are on a long road towards reducing emissions across our operations and there is clearly more work to be done. But projects such as this are an important part of helping us get there.”

Can hydrogen replace natural gas in alumina refineries?

The study comprises two distinct work packages:

  • Preliminary engineering and design study conducted to understand the construction and operational requirements of a potential demonstration project at the Yarwun alumina refinery.
  • Simulating the calcination process using a lab scale reactor at the Bundoora Technical Development Centre.

Once complete, the study will inform the viability of a potential demonstration project. Rio Tinto has lodged patents for the hydrogen calcination process.

Rio Tinto aiming for net zero by 2050

Rio Tinto is aiming to reach net zero emissions across its operations by 2050. Across the company, it is targeting a 15% reduction in absolute emissions and a 30% reduction in emissions intensity by 2030, from a 2018 baseline.

Aluminium is found in everything from cars to phones. But one of the challenges of producing this essential material responsibly is finding ways to decarbonise the process.

Part of the reason is creating alumina – the main ingredient in aluminium – takes a lot of energy, which in turn creates greenhouse gas emissions. New technologies will be essential to helping reduce emissions, but many haven’t been proven. And some not yet even discovered. Rio Tinto's transformation is being driven by innovation and its partnership with ARENA is a positive step towards these goals.

 

Rio Tinto Yarwun aerial

 

               

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