copper flotation from converter slag

(PDF) Biorecovery of copper from converter slags: Slags ...

Biorecovery of copper from converter slags: Slags characterization and exploratory ferric leaching tests. Download. ... Base metals recovery from copper smelter slag by oxidising leaching and solvent extraction. By Dzivhani Madzivha. Extractive Metallurgy of Copper. By Marlene Sarahi Cano.

Research on New High Efficiency Recovery Process for ...

The chemical components, dissemination characteristics and flotation behaviour of copper slag have been investigated through chemical analysis, X-ray powder diffraction (XRD), electron microscopeand flotation tests. These results show that the converter copper slag from Hubei, China, is refractory resource owing to its complex composition and mosaic relationship.

Expansion of the Mount Isa Mines Copper Concentrator Phase ...

Smelter slag treatment Treatment of converter slag m the 1970''s and 980''s was on a batch basis dunng periods of ore shortage. The batch processing of Copper Smelter converter slag began in 1976 et al, 978)_ Parallel processing of slag and ore commenced in 1992 and the flotation …

Converter Slag Flotation—its Effect on Copper ...

 · The Naoshima Smelter has employed the convert er slag flotation method in order to increase reverberatory smelting capacity instead of returning slag to the reverberatory furnace. As the result, we could point out the following advantages; 1) Copper anode produced from copper concentrate was increased 25%, from 3,000T/M to 3,800T/M.

SUSTAINABILITY OF COPPER SLAG PROCESSING FROM …

Flotation is an important technology to recover copper from copper slag. There are a few industrial flotation facilities for treatment of copper slag, such as: Magma Copper San Manual facility, USA, Altonorte Flotation Plant, Chile, Outokumpu facility, Finland, …

Chapter 6 Copper Production Technology

The Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows. By the end of the smelt the copper had separated from the slag, which was tapped off.

NIOSHTIC-2 Publications Search

Laboratory batch flotation tests were conducted on copper converter slags to evaluate the relative merits of recovering copper from slow- cooled versus water-quenched slags. Three slags containing 1.6, 5.0, and 6.6 percent copper were used. More than 90 percent of the copper was recovered in a rougher concentrate leaving a 0.2- to 0.3- percent copper tailings when treating slow-cooled slag.

Enhancing the flotation recovery of copper minerals in ...

Reverbetory furnace slag Copper recovery Flotation Milling and grinding ABSTRACT Namibia Custom Smelters (NCS) process a range of copper concentrates in their three furnaces, namely; top submerged lance, copper converter and reverberatory furnaces, in order to produce mattes and fayalitic slags. The copper content of the slags range between 0.8 ...

Recovery of Copper from the Slag of Khatoonabad Flash ...

 · Similarly, Somerville et al. carried out the single-stage flotation process (rougher) on the converter slag and achieved 90 % copper recovery. Gradual cooling impact on the slag from molten to solid state was studied by Sarrafi et al. [ 10 ].

Processing of copper converter slag for metal reclamation ...

Clean processing of copper converter slag to reclaim cobalt and copper could be a challenge. An innovative and environmentally sound approach for recovering valuable metals from such a slag has been developed in the present study. Curing the slag with strong sulphuric acid, without re-smelting or ro …

Characteristic of Flotation for Recovery of Copper from ...

 · Abstract. Almost all copper slags contain a considerable amount of Cu (0.5 - 3.7%) close to or even higher than copper ores. A number of methods for metal recovery from copper slag were reported These methods can be classified into three categories, flotation, leaching and roasting.

Copper Smelting

 · Slag formed in the smelting and converting reactions flows to the slag well. Slag cleaning occurs as a result of contact with lower grade matte in passing through zone 1, by the roast reaction of copper sulfide and copper oxides by the reduction of copper oxide by sulfur and ferrous sulfide, and by the reduction of magnetite.

Hydrophobic-surface of copper from converter slag in the ...

 · The converter slag from a smeltery in Daye contains 2.01% copper. The floatability of copper has a significant influence on the flotation of converter slag. Flotation tests, contact angle tests and FTIR were conducted to assess the influences of pH and different flotation concentrators on its hydrophobic process, mechanism and flotation.

Management of copper pyrometallurgical slags: giving ...

Some properties of a typical copper slag are shown in Table I, and it can be observed that air-cooled copper slag has a black colour and glassy appearance. The specific gravity varies with iron content, from 2.8 to 3.8. The unit weight of copper slag is somewhat higher than that of conventional aggregate. The absorption capacity of the

(PDF) Expansion of the Mount Isa Mines Copper Concentrator ...

Copper is recovered in the Copper Concentrator from chalcopyrite ore, converter smelter slag and rotary holding furnace (RHF) slag via grinding and flotation operations.

Minerals | Free Full-Text | Stepwise Utilization Process ...

Waste copper slag is a typical hazardous solid waste containing a variety of valuable elements and has not been effectively disposed of so far. In this paper, a stepwise extraction process was proposed to recover valuable elements (copper, iron, lead and zinc) from waste copper slag. The specific procedures are as follows: (1) A flotation process was adopted to enrich copper, and when the ...

Energy and Environmental Profile of the U.S. Mining …

Tailings from flotation of copper slag are a second RCRA special waste. ... remaining iron combines with the silica to form converter slag, a RCRA special waste. After removing the slag, additional air or oxygen is blown in to oxidize the ... chemical reactions are required to convert copper into a water-soluble form. Copper is recovered from a ...

copper slag processing

123 Primary Copper Smelting. copper A continuous process called floatation which uses water various flotation chemicals and Crushing and grinding systems used in ore flux and slag processing also contribute to fugitive dust problems Control of SO2 from smelters is commonly performed in a sulfuric acid plant Use of a...

The recovery of platinum group metals from low

Peirce-Smith converter slag in order to decrease the slag viscosity and further increase ... During pyrometallurgical processing, the nickel-copper concentrates from milling-flotation step are smelted to bring about physical and chemical changes that enable the recovery of base metals, PGMs, and other valuable metals in a crude form. In general ...

Recovery of Copper and Cobalt from Concentrate and ...

This study was designed to recover copper and cobalt hydrometallurgically from an enriched concentrate of flotation and converter slag. Three slag samples collected from the Ergani Copper Co. of ...

COMPARATIVE RESULTS OF COPPER FLOTATION FROM …

Production of copper concentrate by flotation of smelter slag has started in 2001. Flotation concentrate goes to the Copepr Smelter once more for production of cop-per cathodes and the rough flotation tailings go to the flotation tailing dump. Copper recoveries in the flotation process of smelter slag reaches the value of about 45- 50%.

Processing Converter Slags with Total Utilization of All ...

 · With conversion of copper smelting plants to autogenic melting the problem arises of separate treatment of converter slag (CS). Almost all plants converted to autogenic melting use slag flotation [1,2,3,4,5,6,7,8,9,10].Sometimes they float a mixture of furnace and converter slags after granulation [] of a mixture of CS and original ore in different ratios [].

BACKGROUND REPORT SECONDARY COPPER SMELTING, …

Smelting of low-grade copper scrap begins with melting in either a blast or a rotary furnace, resulting in slag and impure copper. If a blast furnace is used, this copper is charged to a converter, where the purity is increased to about 80 to 90 percent, and then to a reverberatory furnace, where copper of about 99 percent purity is achieved.

RECOVERY OF COPPER FROM COPPER SLAG AND COPPER …

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 COPPER FROM SMELTING SLAG BY …

Pyrometallurgical production of copper generates two slags: smelting furnace slag and converter slag which contain 0.5-2% Cu and 2-8% Cu, respectively. The following three methods are generally utilized for recovering the copper from these slags on an industrial scale: (i) recycling of the converter slag to the smelting furnace,

Enhancing the flotation recovery of copper minerals in ...

N2 - Namibia Custom Smelters (NCS) process a range of copper concentrates in their three furnaces, namely; top submerged lance, copper converter and reverberatory furnaces, in order to produce mattes and fayalitic slags. The copper content of the slags range between 0.8 to 5 wt. % and this is considered too high for disposal to the environment.

copper flotation from converter slags

Leaching of copper and zinc from copper converter slag . Read "Leaching of copper and zinc from copper converter slag flotation tailings using H 2 SO 4 and biologically generated Fe 2 (SO 4 ) 3, Hydrometallurgy" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Copper in solidified copper smelter slags

Converter slags from slag blowing stages may contain copper few per cent up ot 20 w-%.t ... Mineralogical composition and morphology of copper in slags, important for slag flotation, is finally formul ated in s olidification and cooling of slag. Only metallic and

Leaching of copper and zinc from copper converter slag ...

 · Over 1.5 Mt of dumped slags, including converter slag flotation tailings, which contain up to 6000 t copper and 60,000 t zinc, are produced yearly by the copper-smelting plants of the Ural Mining and Metallurgical Company (UMMC) alone. Significant areas required for stockpiling of the slags and the products of their processing are unavailable ...

Copper extraction

Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.. As in all mining operations, the ore must usually be beneficiated (concentrated).

Enhancing the flotation recovery of copper minerals in ...

 · Table 1 shows that chalcocite is the main copper bearing mineral in the converter slag. In the TSL slag, copper is in the form of chalcocite, digenite and bornite. No copper containing minerals were detected in reverberatory slag, as it contains less than 1% copper. ... Total copper flotation recoveries before and after regrinding of the ...

Metal recovery from copper converter slag by roasting with ...

 · Roasting of converter slag with ferric sulphate, followed by leaching with water, was carried out in order to bring the metal values into solution. For 500°C roasting temperature, 120 min roasting time and Fe 2 (SO 4) 3 · xH 2 O/slag = 1 ratio, recoveries of copper, cobalt, nickel and zinc were about 93%; 38%; 13% and 59%, respectively ...

Effect of Temperature and Amount of Flux in a Charge on ...

 · Samples of converter slag of the Balkhash copper-smelting plant (BMZ), taken during their discharge from a converter, and experimental samples after conversion under laboratory conditions at different temperatures are studied. Scanning electron microscopy and X-ray microanalysis are used, and it is found that industrial and experimental slags have the same matrices of similar mineral and …

The Recovery of Copper from Smelting Slag by Flotation ...

 · Abstract. Aiming at the recovery of copper from smelting slag, a flotation approach was studied. It was found that this slag composed of fine particles with complex association and distribution, in which bornite was the main copper-bearing mineral after a detailed mineralogy analysis via polarizing microscope, SEM and XRD.