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Priority claimed from SE7507696Aexternal-prioritypatent/SE395017B/xx
Priority claimed from SE7604046Aexternal-prioritypatent/SE400312B/xx
Priority claimed from DK288176Aexternal-prioritypatent/DK288176A/da
Application filed by Boliden AbfiledCriticalBoliden Ab
Priority to DK401079ApriorityCriticalpatent/DK401079A/da
Publication of DK401079ApublicationCriticalpatent/DK401079A/da
Forfarande for att ur finfordelade metalloxidhaltiga material framstella en forreducerad produkt, varvid materialet smeltes och reduceras under fall genom ett schakt