copper slag recovery

Base metals recovery from copper smelter slag by …

A copper smelter slag from Lubumbashi, Democratic Republic of Congo, containing 1.4% Cu, 0.7% Co, 8.9% Zn and 20.9% Fe(II), has been used in this study. The leaching tests have been carried out at normal pressure on ground slag samples (<100 μm).

Copper Slag Recovery

Copper Slag Recovery. Cal-Chem Metals is currently purchasing copper bearing slag from a variety of industries including copper rod mills, copper tube mills and other industries where there is a need to melt copper. A byproduct of copper melting is the production of slag. Cal-Chem purchases this waste stream material and brings it to their ...

Recovery of molybdenum from copper slags — Tohoku …

Recovery of Mo from Chilean copper slags is quite attractive to secure a stable Mo supply. The feasibility of the recovery of Mo from copper slags as Fe-Mo alloys by carbothermic reduction is investigated in the present study. Mo in the copper slag is …

CHARACTERISATION OF COPPER SLAG IN VIEW OF

2013-4-9 · ^Characterization of copper slag in the view of copper beneficiation _, in Proceeding of Coppr metallurgy, Krakow, 2011. 4. X. Wang, G. Daneel, N. D''Hoker, S. V. Padilla Tinoco, T. Van Gerven and B. Blanpain, ^Characterization of copper slag in view of copper recovery _, (submitted to the Journal of

Recovery of copper from copper slag using a microbial …

The electrogenesis performance of the DMFC and its ability to extract copper from the copper slag leachate were investigated. The results demonstrated that the maximum voltage was 540 mV when the DMFC achieved steady-state operation. The removal rate of copper ions was greater than 80.0%, and the maximum value was 92.1%.

Heavy Metal Recovery from Slags of Copper Production …

2021-8-17 · 4 Slag cleaning by using additives The copper recovery from slag during smelting is generally related to the settling be-haviour of the matte. The settling velocity mainly depends on the size of the particles. Metallic/matte droplets with a big diameter settle very fast, smaller particles settle much slower to the ground of the bath.

Recovery of Copper from Copper Slag by Hydrometallurgy ...

In this research, the recovery of copper from copper slag is investigated using hydrometallurgy method. Slag samples were taken from Al-Shaheed State Company. The results of the chemical analysis showed that the slag contained 11.4% of copper. ud The recovery process included two stages; the first stage is leaching using diluted sulfuric acid.

Slag/Dross Recovery-

The commonly-seen slag/dross/residue includes copper dross, lead dross, tin slag, zinc leaching residue, antimony/arsenic dross, cadmium residue/cake, sulfur residue/cake, vanadium slag, nickel slag, iron tailing and iron bearing red-mud waste.Metalcess is a professional company offering metal extracting/ recovery/ recycling solutions. We have rich experience in slag …

Recovery of metal values from copper slag and reuse of ...

2017-10-5 · Copper slag was characterized and processed. The pyro-metallurgical processing prospects to generate utilizable materials were arrived at through rigorous thermodynamic analysis. Carbothermal reduction at elevated temperature (near 1440°C) helped recover a majority of the metal values (e.g., Fe, Cu and Mo) into the iron-rich alloy product ...

Management of copper pyrometallurgical slags: giving ...

2004-1-18 · materials from copper slag. Recovery of copper, molybdenum, precious metals, silica and iron, that is the most abundant component of the slag, are the goals for this research. Metals, commercial compounds, alloys and different forms of iron …

Recovery of Copper from Reverberatory Copper Slag and ...

2016-6-8 · The optimum digestion temperature is 250oC, at which a high recovery of copper from copper slag is achieved. Figure 7. Copper in the residue at various digestion temperatures. Effect of Digestion Time at 250oC Figure 8 shows that 2 hours of digestion at 250oC was adequate. 0 20 40 60 80 100 120 140 160

Copper Smelting Slag Recovery

Copper Smelting Slag. Copper smelting slag is produced from copper pyrometallurgy (both smelting and converting stages), usually grading at 0.3-3%. The slag may also contains lead & zinc minerals like galena, sphalerite. Copper mainly dwells in the slag in the form of bornite, chalcocite, chalcopyrite, and metallic copper.

An Overview of Recovery of Metals from Slags

The specific procedures are as follows: 1) A flotation process was adopted to enrich copper, and when the copper grade in the flotation concentrate was 21.50%, the …

Recovery of molybdenum from copper slag — Tohoku …

Recovery of Mo from Chilean copper slag is quite attractive to secure a stable Mo supply. The feasibility of the recovery of Mo from Cu slag as Fe-Mo alloys by carbon reduction is investigated in the present work. Mo in Cu slag is found to be fully recovered as Fe rich alloy. The recovered Fe rich alloy contains about 0.65mass% Mo and 2.4 mass% Cu.

RECOVERY OF COPPER FROM COPPER SLAG AND …

2014-9-8 · Recovery of copper from copper slag and copper slag flotation tailings 77by oxidative leaching Leaching with ferric sulphate The slag and the slag flotation tailings were leached with ferric sulphate in 1 M sulphuric acid. The ferric iron concentration was …

How to Recover Copper from Slag by Flotation

2021-2-3 · However, recovery of copper was about 4 percent lower for the high copper slag (sample C) and 23 percent lower for the low copper slag (sample A). Flotation tailings from the quenched slags ranged from 0.53 to 0.66 percent; slow-cooled slags gave tailings containing from only 0.26 to 0.39 percent copper with lowest analyses for 30-minute grinds.

Deep reduction recovery of iron from copper slag | IIETA

2018-12-31 · This paper explores the effects of reductant, flux, reduction temperature and reduction time on the iron content and iron recovery rate of the deep reduction product from copper slag containing 41.47% of iron. Through a series of tests, it is concluded that reduction temperature and reduction time are leading influencing factors on the two ...

RECOVERY OF COPPER FROM SMELTING SLAG BY SULPHATI…

2017-12-1 · Recovery of copper from copper slag by physical beneficiation using froth flotation was studied by Sarrafi et al. (2004). They used mercaptobenzothiazole (MBT) collector to recover the copper from the ground copper slag and indicated that a slow-cooled slag would be more favorable for better copper recovery.

2-Recovery of Copper and Cobalt from Converter Slag …

2018-8-20 · Recovery of Copper and Cobalt from Converter Slag with a New Flotation Method Using H2S 70 sulfuric acids [12, 13] with and without pressure [13], ferric chloride [8, 14, 15], ferric sulfate [7], cyanide, thiosulphate leaching [16], ferric sulfate and ammonia sulfate solutions [7, 12, 17, 18]. In this study, the flotation of converter slag was

Alternative Reduction of Copper Matte in Reduction …

The main use of copper slag is to recycle iron or copper inside. Copper in slag was mainly Cu 2S and little Cu 2O because of the existence of FeS. The recovery body of copper slag was mainly copper matte, returned to smelting process of copper by means containing acid leaching, flotation recovery and depletion recovery.3,7,8) Copper slag con-

An Overview of Recovery of Metals from Slags

P.K. Jena. A study of the recovery of copper, nickel and cobalt from copper converter and smelter slags by leaching with ferric chloride is reported. The converter slag from Ghatsila, India ...

Recovery of Copper from Reverberatory Copper Slag and ...

2016-6-8 · concentrate, various mining operations have initiated the recovery of copper from dumped slag. The typical process uses crushing, milling and flotation. These operations create excessive liner wear rates during crushing and milling because the bond work index of copper slag is 22 kWh/t and this is considered a very hard slag.

Recovery of metal values from copper slag and reuse of ...

Copper slag was characterized and processed. The pyro-metallurgical processing prospects to generate utilizable materials were arrived at through rigorous thermodynamic analysis. Carbothermal reduction at elevated temperature (near 1440°C) helped recover a majority of the metal values (e.g., Fe, Cu and Mo) into the iron-rich alloy product which can be a feed material …

Process for recovery of iron from copper slag

The recovery of iron from the copper slag which was otherwise considered as a waste. 2. The produced alloy has the potential to be used as grinding media applications. 3. Copper slag acts as a alternative raw material for the production of alloyed cast iron compared to conventional one. 4. Recovery of iron is very high and is around 75 to 85 ...

Improving Copper Recovery from Production Slags by ...

2013-10-14 · Improving Copper Recovery from Production Slags by Advances Stirring Methods Proceedings of EMC 2011 3 treated in the existing copper extraction route or separately in a subsequent reactor the slag phase can be used as construction material for example. 1.2 Conventional pyrometallurgical copper slag route

Recovery of Valuable Metals from Copper Smelter Slag by ...

2018-11-26 · In the present paper, recovery of valuable metals from copper smelter slag of Balkhash copper plant (Kazakhstan) was investigated. To recover Fe, Zn and Cu to water-soluble form, the mixture of 150 g of copper slag and 60 g of 85% sulfuric acid was granulated and then roasted in the temperature range of 473–643 K (200–370 °C) followed by sulfuric acid leaching.

RECOVERY OF COPPER FROM COPPER SLAG AND …

2014-9-8 · Recovery of copper from copper slag and copper slag flotation tailings 75by oxidative leaching Table 1. Chemical compositions of the copper smelter slag and the slag flotation tailings Constituent Content (wt.%) Copper Slag Slag Flotation Tailings Cu – total 0.97 0.59 Cu – oxides 0.15 0.06 Cu – sulphides 0.82 0.53 SiO 2 33.75 34.62 Al 2 O

RECOVERY OF METAL VALUES FROM COPPER SLAG

What is claimed is 1. A process for the recovery of metal values from copper smelter slag material which comprises mixing with agitation a unit part by weight of slag and about a unit part by weight of concentrated sulfuric acid to form an acid-slag mixture, incorporating in the acid-slag mixture about a unit part by weight of water, and allowing the mixture to react to produce a dry, solid ...

EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN …

2015-9-7 · Copper is present in a smelting slag from Teniente Converter (TC) in the form of mecha-nically entrained matte inclusions and dissolved copper. Copper recovery from the slag requires magnetite reduction to liberate matte inclusions and create conditions for co-reduction of dissolved cuprous oxide. Efficiency of copper recovery from the slag in an

[PDF] Recovery of copper from the copper slag and copper ...

Copper smelter slag and copper smelter slag flotation tailings were leached using sulphuric acid solutions, without or with the addition of either ferric sulphate or hydrogen peroxide. Copper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings. Hydrogen peroxide was determined to be the best lixiviant.

(PDF) Recovery of metal values from copper slags by ...

Under optimum conditions, more than 95% of copper could be recovered by only a limited recovery of cobalt, nickel and zinc could be achieved by …

(PDF) Recovery of iron from copper slag | Urtnasan ...

A Study on the Recovery of Iron from Copper Slag with [14] Y. Liao, J. Zhou, F. Huang, Separating and recycling of Fe, Temperature, International Journal of Applied Engineering Cu, Zn from dumped copper slag by microwave irradiation Research, Number 2, 977-982 (2018).

RECOVERY OF IRON FROM COPPER FLASH SMELTING …

2015-9-7 · Recovery of Iron from Copper Flash Smelting Slags Figure 3 shows the rapid decreasing of copper content in the slag during the first 15 min-utes with the graphite rod introduced into the melt, while the iron concentration is main-tained almost constant over same period of time, suggesting that a selective reduction

Recovery of Valuable Metals from Copper Slag by ...

A novel hydrometallurgical method was developed to recycle valuable metals of Si, Fe and Cu from copper slag. The leaching rates of 98%, 99% and 91% for SiO2, Fe and Cu, respectively, were obtained under optimized parameters: solid-to-liquid ratio is 1:10; concentration of hydrochloric acid is 35%; the reaction time is 2 hours and at 80-90°C.