EP 0597522 B1 19960417 - Process for the selective flotation of a sulphide ore containing copper, lead and zinc
Title (en)
Process for the selective flotation of a sulphide ore containing copper, lead and zinc
Title (de)
Verfahren zur selektiven Flotation eines sulfidischen Kupfer-Blei-Zinkerzes
Title (fr)
Procédé pour la flottation sélective d'un minerai sulfuré contenant du cuivre, du plomb et du zine
Publication
Application
Priority
DE 4238244 A 19921112
Abstract (en)
[origin: EP0597522A1] A process is provided for the selective flotation of a sulphide ore containing copper, lead and zinc, the crude ore being ground and flurried with water, the suspension formed being aerated to establish a defined redox potential, being successively conditioned with SO2, Ca(OH)2 and with collectors and frothers and then the Cu flotation being carried out, in the aeration of the suspension before the Cu flotation, a redox potential of 70 to 90% of the redox potential desired for the Cu flotation being established and the desired redox potential of 60 to 340 mV being established by the aeration during the Cu flotation and the Cu flotation proceeding at a pH of 8.5 to 10.5 and Cu being removed from the flotation with the froth.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Designated contracting state (EPC)
DE ES FR GB PT
DOCDB simple family (publication)
EP 0597522 A1 19940518; EP 0597522 B1 19960417; AU 5058893 A 19940526; AU 661618 B2 19950727; CA 2107275 A1 19940513; CN 1087559 A 19940608; DE 4238244 A1 19940519; DE 4238244 C2 19940908; DE 59302259 D1 19960523; ES 2086872 T3 19960701; TR 28263 A 19960425; US 5439115 A 19950808; ZA 938467 B 19950512
DOCDB simple family (application)
EP 93203068 A 19931102; AU 5058893 A 19931110; CA 2107275 A 19930929; CN 93114485 A 19931110; DE 4238244 A 19921112; DE 59302259 T 19931102; ES 93203068 T 19931102; TR 92593 A 19931007; US 14908793 A 19931109; ZA 938467 A 19931112