Bauxite Mining: Aluminium yog rho tawm los ntawm bauxite ore, uas muaj aluminium hydroxide cov zaub mov. Cov tso nyiaj loj muaj nyob hauv Australia, Suav, thiab Guinea.
BAYER Txheej Txheem: Bauxite yog ua kom zoo rau hauvalumina (al₂o₃)Siv caustic dej qab zib thiab kub. Kev tsis sib xws li cov hlau oxide raug tshem tawm, tawm hauv cov hmoov dawb alumina.
HALL-HÉREULT cov txheej txheem: Alumina yog yaj nyob rau hauv moltenCRYOLOLITEThiab electrolyzed nyob rau hauv cov pa roj carbon-lined. Hluav taws xob cov ntoo hluav taws xob tam sim no rau hauv kua txhuas (sau ntawm cathere) thiab kev sib xyaw (tso tawm ntawm Anode).
Chaw ua casuming: Molten Aluminium yog hliv rau hauv cov pwm los ua cov ntawv sau, cov ntawv txheeb, lossis cov ntawv ci. Cov no yog tom qab dov los yog extruded rau hauv cov khoom lag luam.
Ubno: Thib ob ntau lawm Melts seem txhuas (piv txwv, cov kaus poom, ntawv ci), xav tau tsuas yog 5% ntawm lub zog siv hauv kev tsim khoom.
Cov txheej txheem yog lub zog-intensive (≈15 kg ntawm txhuas), kev tsav tsheb los txais yuav lub zog txuas dua tshiab thiab txhim kho kev ua tau zoo.
