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1. (WO1992010298) METHOD FOR ACHIEVING ENHANCED COPPER FLOTATION CONCENTRATE GRADE BY OXIDATION AND FLOTATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010298 International Application No.: PCT/US1991/009261
Publication Date: 25.06.1992 International Filing Date: 09.12.1991
Chapter 2 Demand Filed: 10.07.1992
IPC:
B03B 1/04 (2006.01) ,B03D 1/002 (2006.01) ,B03D 1/02 (2006.01) ,B03D 1/04 (2006.01) ,B03D 1/06 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
B
SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
1
Conditioning for facilitating separation by altering physical properties of the matter to be treated
04
by additives
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
D
FLOTATION; DIFFERENTIAL SEDIMENTATION
1
Flotation
02
Froth-flotation processes
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
D
FLOTATION; DIFFERENTIAL SEDIMENTATION
1
Flotation
02
Froth-flotation processes
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
D
FLOTATION; DIFFERENTIAL SEDIMENTATION
1
Flotation
02
Froth-flotation processes
04
by varying ambient atmospheric pressure
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
D
FLOTATION; DIFFERENTIAL SEDIMENTATION
1
Flotation
02
Froth-flotation processes
06
differential
Applicants:
CYPRUS MINERALS COMPANY [US/US]; 9100 East Mineral Circle Englewood, CO 80155, US
Inventors:
HUCH, Richard, O.; US
Agent:
TOMPKINS, Michael, L. ; Sheridan Ross & McIntosh One United Bank Center 1700 Lincoln Street, 35th Floor Denver, CO 80203, US
Priority Data:
626,82513.12.1990US
Title (EN) METHOD FOR ACHIEVING ENHANCED COPPER FLOTATION CONCENTRATE GRADE BY OXIDATION AND FLOTATION
(FR) METHODE D'OBTENTION D'UNE QUALITE AMELIOREE DE CONCENTRE DE FLOTTATION DE CUIVRE PAR OXYDATION ET FLOTATION
Abstract:
(EN) The present invention involves a method for separating copper sulfide from rimmed iron sulfide by flotation. Prior to flotation, a slurry containing the sulfides is oxidized (66) and conditioned (83) to achieve a pH greater than pH9. Thereafter, the slurry is subjected to a froth flotation process (96) by which a copper sulfide, such as chalcopyrite, concentrate (130) is removed.
(FR) L'invention concerne un procédé permettant de séparer le sulfure de cuivre du sulfure de fer non calmé par flottation. Avant la flottation, une boue contenant le sulfure est oxydée (66) et conditionnée (83) pour obtenir un pH supérieur à 9. Ensuite, la boue est soumise à un procédé de flottation par écumage (96) au cours duquel un sulfure de cuivre, tel qu'un concentré (130) de chalcopyrite est enlevé.
Designated States: AT, AU, BB, BG, BR, CA, CH, CS, DE, DK, ES, FI, GB, HU, JP, KP, KR, LK, LU, MG, MN, MW, NL, NO, PL, RO, SD, SE, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1991091350