Electrolyte chemistry for improved performance in modern industr

Details Electrolyte chemistry for improved performance in modern industr Electrolyte chemistry for improved performance in modern industr

1991-06-17

1992-05-19

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

252521, C25C 306, C25C 318, H01B 106

Patent

active

051145456

ABSTRACT:
A composition and method is disclosed for the production of aluminum. A modified cryolite electrolyte bath is shown comprising, by weight: 0.5 to 1.5% LiF; 0 to 2% MgF.sub.2 ; 3 to 5% CaF.sub.2 and 8 to 12% excess AlF.sub.3. Also, Al.sub.2 O.sub.3 in an amount of 1 to 6%; preferably 1 to 3% by weight, is present in the bath.

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Keinborg, M. et al, "Aluminium Pechiney 180 KA Prebake Pot From Prototype to Potline", Light Metals, 1982.

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