Patent · US Expired

Carbothermic production of aluminium

US4226618A · kind A · utility

2Cited by
1References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 7, 1979
Grant dateOct 7, 1980
Priority date—
Expiry dateAug 7, 1999

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC22B21/02
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

In a process for production of aluminium metal carbon monoxide gas evolved at very high temperature through reaction of aluminium carbide and alumina is cooled by contact with a molten alumina slag at a lower temperature to cause back reaction of contained aluminium suboxide and Al vapor and consequent heat transfer to the contacted molten alumina slag.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.