Cosa si muove effettivamente
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.
- Il materiale
- Nickel
- La varietà
- Saprolite laterite ore, roughly 2% nickel, low cobalt
- Dove inizia
- New Caledonia — The nickel-rich massifs of Grande Terre, a fragment of ancient ocean floor pushed above sea level
Passo dopo passo, confine per confine
New Caledonia · Grande Terre detenuto da SLN, Prony and KNS operations (Minatore)
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.
Perché qui: 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 detenuto da Operators (Minatore)
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.
Che fine ha fatto il resto: 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.
Perché qui: Drying has to happen before shipping or smelting, and the cheapest place to do it is at the mine.
New Caledonia · Doniambo smelter, Nouméa detenuto da Société Le Nickel (Raffinatore)
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.
Che fine ha fatto il resto: Almost everything else is slag. The nickel was never more than about 2% of what came out of the ground.
Perché qui: 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 detenuto da Steelmakers (Produttore)
To a stainless mill
Ferronickel is shipped as ingot or shot directly to stainless steel producers.
Perché qui: Ferronickel has exactly one customer: the stainless steel industry. It cannot be redirected to batteries.
Japan · Stainless mill detenuto da Steelmakers (Produttore)
Stainless steel
Melted with chromium and iron into austenitic stainless — sinks, cutlery, chemical plant, architectural cladding.
Perché qui: Two-thirds of all nickel still goes into stainless steel. The battery story is the newer and smaller half of the market.
Questo è un esempio elaborato. Segue una quantità iniziale dichiarata attraverso rese e recuperi tipici pubblicati, così che le proporzioni siano verificabili; non è il resoconto di una spedizione specifica. I dati di percorso — quali paesi, quali processi e perché il materiale non può semplicemente essere trattato altrove — sono compilati da fonti di pubblico dominio.