Copper Loss in Slag | Request PDF
The slag composition and forms of copper affect the slag cleaning process and final copper content. Converting of high grade matte in Pierce-Smith converter faces some difficulties in proper ...
On the origins of extractive metallurgy: new evidence from …
In Europe, researchers arguing for multiple origins of extractive metallurgy pointed to reports of copper smelting slag in Cerro Virtud in southeast Spain (Ruíz Taboada and Montero-Ruíz, 1999), questionably dated to the fifth millennium BC (Roberts, 2008), and the …
THE EXTRACTIVE METALLURGY OF COPPER FROM CABEZO JURÉ, HUELVA, SPAIN
The archeological excavations at Cabezo Juré, near Alosno, Huelva Province, in southwestern Spain, have recently revealed the vestiges of an ancient community of workers specialized in the metallurgy of copper (Cu); they were active between 2873 and 2274 B.C. (calibrated radiocarbon age).
The question of early copper production at Almizaraque, SE …
Copper smelting slag recovered from the excavations at Itziparátzico has been analyzed for microstructure and compositional properties using light microscopy, x-ray fluorescence …
Occurrence and speciation of copper in slags obtained …
Slags involved in smelting-converting-refining operations to produce blister copper at the Atlantic Copper smelter, in Huelva (Spain), have been investigated by quantitative electron microprobe analysis, X-ray diffraction and digital imaging
OCCURRENCE AND SPECIATION OF COPPER IN SLAGS …
and converter slag) resulting from smelting-converting operations, with the goal to provide valuable information for the copper smelter management and for developing new methods to reduce copper losses. 2. Materials and methods The study was carried out using copper slag samples from the Huelva smelting plant, in southwestern Spain. This ...
Leaching behavior and occurrence of metal elements in copper slag…
Copper Slag (CS) is a solid waste produced during the industrial smelting of copper (Gorai et al., 2003).The current pyrometallurgical copper smelting process is mainly through the Ausmet furnace (Fig. 1); the furnace slag goes through the flotation process to obtain copper matter, yielding a composition of CS corresponding to 30–40 % of Fe, 15–20 % of Si, …
Flotation of copper smelter slags intensified by impact …
The authors looked at the grinding kinetics of the copper smelter slags pre-crushed in the above specified crushers and compared the share of –0.071 mm particles, as well as that of –0.045 mm particles (which are the finest fraction). ... resulted in a quality concentrate containing 27.5 to 39.0 wt % copper (depending on the slag crushing ...
Flotation of copper sulphide from copper smelter slag …
The present work focuses on recovery of copper value by froth flotation from the copper smelter slag. The QEMSCAN results revealed that copper is present in sulphide form in fayalite (iron–silicate) matrix and very poorly liberated and require fine grinding. The present investigation has studied the respective roles of sodium iso-propyl ...
Direct-to-blister smelting of copper concentrates: …
Direct-to-blister smelting of copper concentrates: the slag fluxing chemistry. P Taskinen [email protected] View all authors and affiliations. Volume 120, Issue 4. ... Taskinen P, Kojo I 2009 Fluxing options in the direct-to-blister …
OCCURRENCE AND SPECIATION OF COPPER IN SLAGS …
smelting furnace slag, electric furnace slag and converter slag) resulting from smelting-converting operations, with the goal to provide valuable information for the copper smelter management and for developing new methods to reduce copper losses. 2. Materials and methods h estudyw a c ri ong p s lagm pero th Hu v i n, in southwestern Spain ...
Cement from Copper smelting slag: Compressive strength, …
The copper smelting slag (CSS) samples were from a smelter in Hubei Province after the reuse of matte-making smelting slag. It was oven dried at 45 °C and ground through a 0.075 mm sieve and an X-ray fluorescence spectrometer was used to examine the CSS's chemical makeup (Malvern Panalytical, The Netherlands). ...
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,
Breakdown of copper-smelting slags with ammonium chloride
Breakdown of the slag with the help of ammonium chloride is investigated and recommendations on the equipment implementation of the process are given. The copper-smelting slag is formed by minerals Fe 2 SiO 4, Zn 2 SiO 4, CuFe 2 O 4, and Ca 2 SiO 4. Breakdown should be performed at 280°C for 4 h with constant stirring and ratio slag: …
Processing of Copperbelt Historical Copper Smelter …
There is approximately 60 million tonnes of historical copper smelter slag around the Zambian Copperbelt containing estimated grades of copper ranging from 0.5% to 3.0% and cobalt between 0.3% to 2.6%. Whilst this is the case, there is currently no large-scale processing facility in Zambia processing the abundant old copper smelter slag.
The Copper Loss In Slag Of Flash Smelting Furnace In Tamano Smelter
The Tamano Smelter of Hibi Kyodo Smelting CO., Ltd. went into operation in 1972. The Flash Smelting Furnace that was originally adapted was equipped with electrodes that were attached to the settler substitute of the slag cleaning furnace. Later the development of our own original coke combustion technology was promoted and a new Tamano Type Flash Smelting …
Direct-to-blister smelting of copper concentrates: the slag …
The primary recovery of copper in the DB smelting in general is a function of the Fe/Cu ratio of the available feed mixture. In the present example of fixed smelting conditions, the fluxing chemistry is adjusted to produce a slag with 18% dissolved copper.
A comprehensive review on the recovery of copper values from copper slag
The copper smelter slags are generally very hard materials, having high work index values. So, very high energy is consumed in grinding the slag samples to a particle size suitable for froth flotation. Shamsi et al. [80] investigated the influence of grinding time on the liberation of copper values in the smelter slag. A grinding time of 65 min ...
OCCURRENCE AND SPECIATION OF COPPER IN SLAGS …
Slags involved in smelting-converting-refining operations to produce blister copper at the Atlantic Copper smelter, in Huelva (Spain), have been investigated by quantitative electron …
Magnetic copper smelter slag as heterogeneous catalyst for …
Using solid waste of copper smelter slag as heterogeneous catalyst for tetracycline degradation offers novel insights into "waste treating waste". Credit author statement. Ruirui Sun and Rong Huang led the experimental studies, and contributed to writing of the manuscript and analysis of results. Jiapeng Yang contributed to the experimental ...
The Extractive Metallurgy of Copper from Cabezo Jure, …
The abundance of copper oxides in both smelting and refining slags suggests a highly inefficient metallurgical procedure, with only partial liberation of the copper from the ores. Keywords: …
Presence of bismuth in slag heap upcoming to a copper …
This paper presents a post-mortem study of the refractory lining of a submerged arc furnace used in slag-cleaning operations at the Atlantic Copper Smelter (Spain) after a 6-year campaign.
Simplified flowsheet of the current pyrometallurgical process …
Slags involved in smelting-converting-refining operations to produce blister copper at the Atlantic Copper smelter, in Huelva (Spain), have been investigated by quantitative electron microprobe...
Evaporative mineral precipitates from a historical smelting slag …
It is estimated that 2-2.2 ton of slag tailing is generated for every ton of copper production, approximately 40 million ton of slag is generated from world copper production (the copper ...
Direct-to-blister smelting of copper concentrates: The slag fluxing
Optimal control of the slag chemistry of copper smelting is important for the stable operation of copper smelting processes and at the same time minimizing the loss of copper and other valuable ...
Behavior of Selenium in Copper Smelting Slag | SpringerLink
S.N. Sinha and M. Nagamori, "Activities of CoS and FeS in copper mattes and the behavior of cobalt in copper smelting", Metallurgical Transactions B, 13B, 1982, 461–70. Article Google Scholar
Diverse strategies for copper production in Chalcolithic Iberia
The slag preserves traces of the original charge, including relict quartz, a fragment of a copper silicate mineral, and magnetite agglomerates (Fig. 5, Fig. S2.3a-b), the last …
Study on Copper Recovery of Water-quenched Slag from Copper Smelter …
Factors affecting flotation of water-quenched slag from a copper smelting plant in Hubei province,such as grinding fineness,pulp density,pH value and the reagent system,were studied.The results indicate that the best flotation efficiency was obtained with a grinding fineness of 95%-0.074 mm,a pulp density of 30%,a pH value of 7.0 and reagent dosages of 240 g/t,800 …
Thermodynamics Evaluation and Verification of High-Sulfur Copper Slag …
The copper smelting methods can be divided into flash smelting (Ottokunp furnace, Inko furnace, etc.) and bath smelting (Essa furnace, Ausmelt furnace, Noranda Furnace, etc.) . It will produce 2.2t copper slag while producing 1t copper [ 3 ].
Evaporative mineral precipitates from a historical smelting …
This work reports the chemistry and mineralogy of mineral efflorescences associated with slag deposits at the historical Río Tinto smelter site, southwest Spain.