Hall cell
Handling device for hoods of a cell for electrolytic...
Hard and abrasion resistant surfaces protecting cathode...
Heat economy of an aluminum-reduction cell
Heat sheilding of prebaked anodes in electrolytic cells for...
Heat shock treatment of used brasques from hall-heroult...
Heavy metal removal from wastewater sludge
High capacity anode preparation apparatus
High efficiency electrolysis
High intensity electrolysis cell superstructure for aluminum...
High stability flow-through non-carbon anodes for aluminium...
High swelling ramming paste for aluminum electrolysis cell
High-energy magnetic material
High-strength low-alloy steel anodes for aluminium...
Holder for a mother plate
Hybrid chromium recovery process
Hydrogen evolution inhibiting additives for zinc electrowinning
Hydrogen-assisted electrolysis processes
Hydrometallurgic process for recovering in the metal form...
Hydrometallurgical method for treating nickel mattes