C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B19/00—Obtaining zinc or zinc oxide
C22B19/20—Obtaining zinc otherwise than by distilling
C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/00—Technologies related to metal processing
Mise en solution et recuperation d'au moins un element nb, ta et d'au moins un autre element u, terres rares a partir de minerais et concentres
Procédé et dispositif de traitement hydrométallurgique des poussières métallurgiques et application de ce procédé ou de ce dispositif au traitement des poussières de hauts fourneaux
Perfectionnement au procede bayer de fabrication de trihydrate d’alumine, ledit perfectionnement portant sur la separation de la liqueur d’aluminate et des residus insolubles