cobalt recovery by flotation

Cobalt Recovery By Flotation

Cobalt Flotation Recovery

Research using a continuous flotation test unit has resulted in a flowsheet that allows the recovery of 70 pct or more of the cobalt in Missouri lead ore copper concentrates, at grades of greater than 3 pct Co or 7 pct combined Ni-Co. This can be accomplished on feeds grading as low as 0.25 pct Co.

Silver & Cobalt Processing by Gravity and Flotation

Two stage grinding, and gravity concentration aids recovery of values as soon as freed and precludes the possibility of loss of mineral due to overgrinding and sliming. The jig hutch products which contain extremely high silver and cobalt values, represent approximately 65% of the total silver recovery and 80% of the cobalt recovery.

Recover Cobalt & Copper from Sulfide Concentrates

Cobalt Recovery. Cobalt in the copper solvent extraction raffinate was recovered by (1) solvent extraction with Cyanex 272 (an alkyl phosphinic acid-type extractant), (2) stripping the loaded extract with electrolyte recycled from the cobalt electrowinning cell, and (3) returning the loaded strip liquor to the electrowinning cell for cobalt ...

cobalt recovery by flotation -

A part of the spent electrolyte enters the cobalt recovery circuit and is purified by the removal of iron, copper, nickel, and zinc prior to the precipitation of cobalt as its hydroxide.The ore is comminuted and the cobalt rich oxides are separated by froth flotation.

(PDF) Recovery of cobalt and copper through reprocessing ...

Lutandula and Maloba (2013) reported the copper and cobalt recovery through reprocessing of tailings from flotation of oxidized ores in the Katanga province of the Democratic Republic of Congo ...


DETA, does not affect the recovery of chal-copyrite. Figure 3 shows that 93% of chalcopyrite can be recovered in 12 min in the presence of SO 2, but the co-recovery of 12% pentlandite and 23% 3492 III/NICKEL AND COBALT ORES: FLOTATION

Cobalt Recovery From Polymetallic Concentrates

Cobalt is recovered by flotation into a concentrate wherefrom it is leached by pressure oxidation followed by solution purification (involving copper solvent extraction and iron removal), ion exchange, precipitation and electrowinning.

Recovery of cobalt and copper through reprocessing of ...

On a kinetics standpoint, the best recovery of copper and cobalt is achieved while using the lowest dosage of the reagents (Fig. 6, Fig. 7) because more copper (>40%) and cobalt (>80%) are recovered in concentrate within the first 8 min of flotation of the studied tailings.

Cobalt flotation - Froth Flotation (Sulphide & Oxide ...

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Cobalt processing | Britannica

Cobalt processing, preparation of the metal for use in various products. Below 417 °C (783 °F), cobalt (Co) has a stable hexagonal close-packed crystal structure. At higher temperatures up to the melting point of 1,495 °C (2,723 °F), the stable form is face-centred cubic. The metal has 12

Recovery of cobalt, nickel, and copper from slags, using ...

Mintek has been working on the recovery of cobalt, and the associated valuable metals, from slags, since 1988, using DC-arc furnace technology to effect selective carbothermic reduction of the oxides of cobalt, nickel, copper, (and zinc, where present), while retaining the maximum possible quantity of iron as oxide in the slag.

cobalt recovery by flotation -

cobalt processing | This is then treated by flotation to separate a cobalt-rich concentrate for ... solution, after some purification, is suitable for the recovery of cobalt …

Flotation of Nickel-Copper Sulphide Ore: Optimisation of ...

recovery of Ni, while collector dosage and percentage solids were insignificant. None of the tested parameters significantly affected copper recovery whilst pH was found to also significantly affect cobalt recovery. Keywords: flotation, process optimization, Taguchi orthogonal array, ANOVA. 1. Introduction

Continuous Flotation Testing To Recover Cobalt From ...

CONTINUOUS FLOTATION TESTING TO RECOVER COBALT FROM MISSOURI lEAD ORES By W. L. Cornell,1 A. M. Wethington,2 D. C. Holtgrefe,3 and F. H. Sharp1 ABSTRACT The Missouri lead ores are the only domestic sources of cobalt presently being mined and processed for other materials. They represent the best short-term solution for

Copper-Cobalt ores - Danafloat

If the cobalt is found with chalcopyrite, bulk flotation can be carried out with xanthate at pH 10, and separation made at pH 4 with an amine and combinations of fatty acid to recover the cobalt minerals.

cobalt recovery by flotation -

Cobalt Recovery By Flotation ... Sulphide significantly affected copper recovery whilst pH was found to also significantly affect cobalt recovery. Keywords: flotation,

Malachite and heterogenite behavior during the locked ...

Dec 10, 2016 · Once again, the flotation of heterogenite seems to be less sensitive to the presence of stone species and their build-up in the pulp water. Indeed, the cobalt recovery remains as high as 61% when the feed water content of bicarbonate ions is increased up to 500 mg/L.

US6428604B1 - Hydrometallurgical process for the recovery ...

A hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate. The process involves forming a slurry of the sulfidic flotation concentrate in an...

Recovery of metal values from copper slags by flotation ...

Recovery of metal values from copper slags by flotation and roasting with pyrite Article (PDF Available) in Minerals and Metallurgical Processing 24(1):13-18 · February 2007 with 720 Reads

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