Ferric leaching of copper slag flotation tailings

Carranza, Francisco; Iglesias, N.; Mazuelos, Alfonso; Romero, R.; Forcat, O.

doi:10.1016/j.mineng.2008.04.010

Cited by 47 publications

(19 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thus, increasing the concentration of ferric ions in the leaching solution increased the recovery of copper into the solution and reduced the recovery of zinc, particu larly within the first 30 min. These results can be explained by the fact that ferric ions are reactants in the reaction of copper leaching (3)(4)(5)(6), increasing the concentration of which increases the intensity of such reactions, while in zinc and iron leaching reactions (8,9) they are products, an increase in the concentration of which inhibits these reactions.…”

Section: Characteristic Of the Slag Magnetitementioning

confidence: 99%

“…These include leaching using chlorate [5], hydrogen peroxide [6], solutions of sulfuric acid [7], sulfate or chloride of ferric iron [8][9][10], potassium dichromate [11], and aqueous solutions of sulfur diox ide [12,13]. None of the above methods has found industrial application due to their high cost and toxic ity of the reagents used, as well as the processing prop erties of the products obtained.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Leaching of nonferrous metals from copper converter slag with application of acidophilic microorganisms

Muravyov

Фомченко

2013

Appl Biochem Microbiol

View full text Add to dashboard Cite

The leaching process of copper and zinc from copper converter slag with ferric iron in sulfuric acid solutions obtained using the association of acidophilic chemolithotrophic microorganisms was investigated. The best parameters of chemical leaching (temperature 70°C, an initial concentration of ferric iron in the leaching solution of 10.1 g/L, and a solid phase content in the pulp of 10%) were selected. Carrying out the process under these parameters resulted in the recovery of 89.4% of copper and 39.3% of zinc into the solu tion. The possibility of the bioregeneration of ferric iron in the solution obtained after the chemical leaching of slag by iron-oxidizing acidophilic chemolithotrophic microorganisms without inhibiting their activity was demonstrated.

show abstract

Section: Characteristic Of the Slag Magnetitementioning

confidence: 99%

mentioning

confidence: 99%

Leaching of nonferrous metals from copper converter slag with application of acidophilic microorganisms

Muravyov

Фомченко

2013

Appl Biochem Microbiol

View full text Add to dashboard Cite

show abstract

“…Kada šljaka sadrži znatne količine bakra i drugih metala, metali se iz nje mogu dobiti pirometalurškim [4,5,42], hidrometalurškim [42][43][44][45][46][47], mešovitim pirohidrometalurškim [48][49][50][51] i biohidrometalurškim [52][53] postupcima.…”

Section: Postupanje Sa šLjakomunclassified

Waste from mining-metallurgical production of copper and treatment of it

Maluckov¹

2017

Tehnika

View full text Add to dashboard Cite

“…However, due to the amorphous structure, issues such as extraction of the doped base metals due to chemical inertia property and silica gel formation in direct leaching have constituted an obstacle to industrial applications. Additionally, for copper smelting slag flotation tailings, only a single study was developed in which copper was recovered using hydrometallurgical methods with ferric leaching, and all other studies and evaluations were conducted on copper smelter slags (Carranza et al, 2009). Unlike all studies conducted in literature, this study aimed to examine the mineralogical transformation of MSFT with sulphation baking at different temperatures and acid dosages, and to determine the dissolution behaviour of Cu, Co, Zn base metals doped fayalite by atmospheric autogenous leaching of B-MSFTs.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of sulphation baking and autogenous leaching behaviour of Turkish metallurgical slag flotation tailings

KART¹

2021

Physicochem. Probl. Miner. Process.

View full text Add to dashboard Cite

Turkish metallurgical slag flotation tailing's (MSFT) that has not been evaluated yet sulphation baking phase transformations and autogenous leaching behaviour were investigated. The MSFT in the study consists of the residual fayalite (FeO•SiO2) phase from the flotation, with a copper recovery of 87%, of the slag released during the smelting of the copper sulphide mine in northern Turkey, and the non-soluble glassy/amorphous structure containing the 0.34%Cu, 4.16%Zn and 0.15%Co base metals locked and doped to this phase. The effects of temperature (350 -650°C) and sulphuric acid dosages (4-10 ml) on sulphation baking were investigated by X-ray diffraction and sulphur analyses of the baked MSFT (B-MSFT) to produce soluble base metal sulphates. Since sulphated metals are a kind of metal salt, autogenous leaching was applied to the B-MSFTs only with purified water to dissolute copper, zinc and cobalt. X-ray diffraction patterns show the transformation of fayalite to oxide and sulphate phases due to sulphation baking. All dissolution values of Co and Zn obtained by autogenous leaching of B-MSFTs produced under all determined conditions are almost the same as one another. This indicates that Co and Zn are doped to fayalite together and that part of cobalt is doped to the zincite structure and liberated and sulphated together. This study showed that MSFTs decompose leading to liberation and sulphation of the doped base metals in its structure at a rate of ≥90%, and that they autogenously dissolve under atmospheric conditions leading to recovery in a simple and economic manner.

show abstract

Ferric leaching of copper slag flotation tailings

Cited by 47 publications

References 5 publications

Leaching of nonferrous metals from copper converter slag with application of acidophilic microorganisms

Leaching of nonferrous metals from copper converter slag with application of acidophilic microorganisms

Waste from mining-metallurgical production of copper and treatment of it

Evaluation of sulphation baking and autogenous leaching behaviour of Turkish metallurgical slag flotation tailings

Contact Info

Product

Resources

About