Process for thermally insulating precalcined anodes in electrolysis cells for the production of aluminum
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Method and means for sport feeding of electrolytic vessels with alumina and halogenated additives for the production of aluminum
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Improvement of the method and apparatus for punctual feeding of electrolysis tanks, and application to the controlled introduction of halogen additives
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Process and apparatus for controlling the supply of alumina to a cell for the production of aluminum by electrolysis
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Method and apparatus for punctual alumina supply of electrolysis tanks for the production of aluminum
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Alumina feed to aluminium prodn. cell - by pneumatic transport via dosing device of predetermined capacity
