Cosa si muove effettivamente
Hard-rock lithium is mined and floated like any other ore, then shipped as a concentrate to be cracked open with heat and acid. It is faster to start, faster to stop and faster to expand than a salar — which is why hard rock, not brine, supplied most of the growth of the last decade.
- Il materiale
- Lithium
- La varietà
- Spodumene concentrate, 6% Li2O, from an LCT pegmatite
- Dove inizia
- Australia — Greenbushes, Western Australia — the highest-grade hard-rock lithium mine in the world
Passo dopo passo, confine per confine
Australia · Greenbushes, Western Australia detenuto da Talison Lithium (Minatore)
Drill, blast, load, haul
Conventional open-pit mining of a zoned pegmatite. The ore is unusually rich in lithium for hard rock, which is why this mine stays profitable through price crashes that shut others.
Perché qui: The pegmatite is here. Greenbushes was mined for tin for a century before anyone wanted the lithium.
Australia · Concentrator on site detenuto da Talison Lithium (Minatore)
Crushing and floating to a concentrate
Crushed, ground, and separated by dense-media separation and flotation until the spodumene is concentrated to about 6% Li2O.
Che fine ha fatto il resto: 880 tonnes to tailings. Concentrating on site is essential — shipping the waste rock across an ocean would be absurd.
Perché qui: You concentrate as close to the pit as possible, always. Freight is charged by the tonne.
China · Port Hedland or Bunbury to Chinese ports detenuto da Traders and converters (Trader)
Bulk carrier to China
Shipped as bulk concentrate. This is the step that made spodumene a spot-traded commodity with a visible price.
Perché qui: The converters are in China. Australia has built some conversion capacity, and found out how hard commissioning a lithium chemical plant to battery specification really is.
China · Sichuan or Jiangxi detenuto da Converter (Chimico)
Roasting at 1,050 °C, then acid
The concentrate is calcined to flip alpha-spodumene into the beta form, then digested in concentrated sulfuric acid and purified into lithium hydroxide or carbonate.
Che fine ha fatto il resto: The sulfuric acid used here is largely a by-product of oil refining and metal smelting — the same sulfur that came off a heavy crude barrel elsewhere in this atlas.
Perché qui: Energy, acid, chemical engineering and a qualified customer next door.
South Korea · Cathode and cell plants detenuto da Cathode and cell manufacturers (Produttore)
Cathode, cell, pack
Hydroxide is preferred over carbonate for high-nickel cathodes because it calcines at a lower temperature. It becomes cathode powder, then a coated electrode, then a sealed cell.
Perché qui: High-nickel cathode expertise sits in a small number of Korean, Japanese and Chinese firms.
United States · Wherever it is sold detenuto da The driver (Utilizzatore finale)
A long-range electric car
The same 8 kg of lithium as the Chilean route delivers — from 1,000 tonnes of rock instead of a million litres of brine.
Perché qui: Four countries, two oceans, and about four months from blast to battery.
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.