O que está realmente em movimento
New Caledonia sits on one of the largest nickel resources on Earth and has smelted it locally for over a century. Its ore is the saprolite kind — good for metal, poor for batteries — so it goes into stainless steel rather than into cells. The economics turn almost entirely on the price of power on a small island.
- O material
- Nickel
- A variedade
- Saprolite laterite ore, roughly 2% nickel, low cobalt
- Onde começa
- New Caledonia — The nickel-rich massifs of Grande Terre, a fragment of ancient ocean floor pushed above sea level
Passo a passo, e fronteira a fronteira
New Caledonia · Grande Terre detido por SLN, Prony and KNS operations (Mineiro)
Scraping the hillside
Laterite sits at the surface, so it is stripped with excavators rather than blasted. The soft, deeply weathered ore needs almost no drilling.
Por que aqui: Millions of years of tropical rain on ultramafic rock made this deposit. It cannot be made anywhere the climate and the bedrock do not agree.
New Caledonia · Doniambo and mine-site plants detido por Operators (Mineiro)
Drying and screening
Laterite arrives wet — often a third water by weight. It is dried and screened before it can be fed to a furnace.
O que aconteceu ao restante: 300 tonnes of that shipment was water. This is why laterite is almost never exported raw over long distances — you would be paying freight on rain.
Por que aqui: Drying has to happen before shipping or smelting, and the cheapest place to do it is at the mine.
New Caledonia · Doniambo smelter, Nouméa detido por Société Le Nickel (Refinador)
An electric furnace on an island
Calcined in a rotary kiln, then smelted in an electric arc furnace to ferronickel — an iron-nickel alloy that goes straight into stainless steel.
O que aconteceu ao restante: Almost everything else is slag. The nickel was never more than about 2% of what came out of the ground.
Por que aqui: Smelting at home keeps the value and the jobs on the island. It also means every tonne of metal carries the cost of island power, which is the industry's permanent problem here.
Japan · Japan, Korea or Europe detido por Steelmakers (Fabricante)
To a stainless mill
Ferronickel is shipped as ingot or shot directly to stainless steel producers.
Por que aqui: Ferronickel has exactly one customer: the stainless steel industry. It cannot be redirected to batteries.
Japan · Stainless mill detido por Steelmakers (Fabricante)
Stainless steel
Melted with chromium and iron into austenitic stainless — sinks, cutlery, chemical plant, architectural cladding.
Por que aqui: Two-thirds of all nickel still goes into stainless steel. The battery story is the newer and smaller half of the market.
Este é um exemplo elaborado. Acompanha uma quantidade inicial declarada através de rendimentos e recuperações típicos publicados, pelo que as proporções são verificáveis; não é o registo de uma remessa específica. Os factos relativos à rota — quais os países, quais os processos e por que o material não pode simplesmente ser tratado noutro local — são compilados a partir de informação pública.