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FR473218A1913-06-211913-12-27Procédé et four pour le traitement des minerais, notamment du minerai de fer, à l'état finement divisé ou pulvérulent
ExpiredFR473218A
(fr)
Procédé et dispositifs pour la récupération de la fonte et d'autres métaux des poussières de hauts-fourneaux et en général des poussières métalliques et poussières de minerais
Procédé pour la fabrication de briquettes aptes au traitement d'extraction formées de poussière de haut fourneau, de poussière de minerai ou de minerais à grains fins