Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace
Patent
1978-11-21
1981-01-20
Andrews, M. J.
Metallurgical apparatus
Means for treating ores or for extracting metals
By means applying heat to work, e.g., furnace
13 23, F27B 1414
Patent
active
042458226
ABSTRACT:
A process for the production of aluminium in two steps:
REFERENCES:
patent: 1313274 (1919-08-01), De Barros
patent: 2468660 (1949-04-01), Gjedebo
patent: 4099959 (1978-07-01), Dewing et al.
patent: 4140523 (1979-02-01), Haddad
Alcan Research and Development Limited
Andrews M. J.
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