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1. WO2006095325 - ORE BENEFICIATION FLOTATION PROCESSES

Publication Number WO/2006/095325
Publication Date 14.09.2006
International Application No. PCT/IB2006/050739
International Filing Date 09.03.2006
IPC
B03D 1/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION 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
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
02Froth-flotation processes
CPC
B03D 1/02
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION 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
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
02Froth-flotation processes
C22B 1/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
1Preliminary treatment of ores or scrap
C22B 19/20
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
19Obtaining zinc or zinc oxide
20Obtaining zinc otherwise than by distilling
C22B 23/005
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
23Obtaining nickel or cobalt
005Preliminary treatment of ores, e.g. by roasting or by the Krupp-Renn process
C22B 3/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
Y02P 10/20
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
10Technologies related to metal processing
20Recycling
Applicants
  • THE BOC GROUP INC. [US]/[US] (AllExceptUS)
  • VERSTER, Daniël, Martin [ZA]/[ZA] (UsOnly)
Inventors
  • VERSTER, Daniël, Martin
Agents
  • VAN DER WALT, Louis, Stephanus
Priority Data
2005/0209211.03.2005ZA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ORE BENEFICIATION FLOTATION PROCESSES
(FR) PROCEDES D'ENRICHISSEMENT DE MINERAI FLOTTANT
Abstract
(EN)
A method is provided of optimizing an ore beneficiation flotation process through which a comminuted ore slurry, which includes a sulphide mineral, passes to produce a final flotation concentrate and a final flotation tail. The method includes measuring the oxygen demand in two or more locations in one or more of the ore slurry, the final flotation concentrate and the final flotation tail, the locations being based on the potential for the oxygen demand in the locations to be significantly different from each other, which would indicate that sulphide mineral particle oxidation can be manipulated. If sulphide mineral particle oxidation can be manipulated, flotation of the sulphide mineral is either promoted or suppressed (activated or deactivated) by manipulation of sulphide mineral particle oxidation depending on whether or not the sulphide mineral includes a valuable metal which it is desired to recover.
(FR)
L'invention concerne un procédé servant à optimiser l'enrichissement d'un minerai flottant, dans lequel un minerai broyé sous forme de boue liquide contenant un sulfure minéral, produit un concentré flottant final et un résidu flottant final. Ce procédé consiste à mesurer la demande en oxygène dans deux ou plusieurs emplacements du minerai en boue liquide, du concentré flottant final ou du résidu flottant final, ou de la totalité de ces derniers, ces emplacements étant déterminés par la différence importante du potentiel de demande en oxygène, ce qui indiquerait qu'il est possible de manipuler l'oxydation des particules de sulfure minéral. Dans ce cas, le flottement du sulfure minéral est soit favorisé, soit supprimé (activé ou désactivé) par la manipulation de l'oxydation des particules de sulfure minéral en fonction de la teneur ou de l'absence de teneur dans ce sulfure minéral d'un métal précieux.
Also published as
EP6711062
Latest bibliographic data on file with the International Bureau