# Halls-Heraults-

Is Hall-Herault is single process or two different processes?? N.B.:- Refer Aluminium Extraction.

Note by Shubham Sharma
5 years, 2 months ago

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The process is a single one .Earlier process for extraction of aluminium was complex and costly .A young scientist Charles Martin Hall tried lot and found a process for extraction of aluminium which was scientific and not costly.On the same time another scientist named Poul Herault also found a similar way for extraction of aluminium. Thereafter the method was known as Hall-herault process

- 5 years, 2 months ago

In some books they processes are displayed separately..

- 5 years, 2 months ago

They should only have slight difference

- 5 years, 2 months ago

no- in hall's process, naoh is used to reduce bauxite to alumina.... whereas, the next process(which we call hall-harault's) is actually the herault's process....

- 5 years, 2 months ago

In hall herault process, first alumina is melted with cryollite and then the molten mixture is electrolyzed.It is a single process

- 5 years, 2 months ago