Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and the furnace type. Main components of copper slag are iron oxide and silica. These exist in copper slag mainly in the form of fayalite (2FeO ·SiO2). This study was …
WhatsApp: +86 18221755073
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). ...
WhatsApp: +86 18221755073
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 ].
WhatsApp: +86 18221755073
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.
WhatsApp: +86 18221755073
This slag may leach heavy metals (arsenic, cadmium, lead or mercury depending on the composition of the ore) into groundwater reservoirs. Water which has a high heavy metal content is very toxic to humans. Hence statement 2 is correct. Copper smelting plants separate elemental copper from copper concentrates through multiple sulphide oxidizing ...
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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.
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
This work reports the chemistry and mineralogy of mineral efflorescences associated with slag deposits at the historical Río Tinto smelter site, southwest Spain.
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
In the present study, using an infrared furnace, the crystallization behavior of copper smelter slag with regard to obtaining a TTT diagram was assessed by X-ray diffraction (using an internal standard), scanning electron microscopy and energy dispersive spectroscopy. Moreover, the distribution behaviors of the heavy metals such as Cu, Zn, As ...
WhatsApp: +86 18221755073
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: …
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
Slag walls from historic copper smelting are mineralogically complex. Weathering of olivine and pyroxene create a high pH leachate. Copper is sourced from spherical, sulfide …
WhatsApp: +86 18221755073
Copper slag is a hard material produced from smelting copper-bearing ores. Over the years, research has prioritized utilizing slag as a secondary source of base metals.
WhatsApp: +86 18221755073
Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and the furnace type. Main components of copper slag are iron oxide and silica. These exist in copper slag mainly in the form of fayalite (2FeO ·SiO 2).
WhatsApp: +86 18221755073
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).
WhatsApp: +86 18221755073
Phelps Dodge Corporation built the first flash furnace smelter in the U.S. in Hidalgo County, New Mexico. The Hidalgo smelter, equipped with two acid plants, was also the first smelter able lo meet the new air quality stan dards in the nation. This energy-efficient flash smelter was capable of smelting 2400 short tons of copper con
WhatsApp: +86 18221755073
The results showed that copper and cobalt contents in cleaned slag could decrease averagely to 0.18% and 0.071% respectively after cleaning. 91.99% Cu and 92.94% Co and less than 38.73% Fe were ...
WhatsApp: +86 18221755073
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
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
The Guerrero site, which Hosler excavated over four field seasons before work had to be suspended because of local drug cartel activity, contains large heaps of copper slag, built up over centuries of intensive use.
WhatsApp: +86 18221755073
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...
WhatsApp: +86 18221755073
The flash smelting process has been used in copper industry for a number of years and has replaced some conventional copper smelting processes in Chile. The high copper content in the slag in this process, require a further cleaning in an electric furnace. Also, the converter
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
Copper smelting slag (CSS) is commonly generated during the smelting process of the copper concentrate, it comprises a range of valuable metals, especially the valuable copper (Cu), possessing the greatest recovery value. Currently, direct flotation is commonly used to recover Cu from CSS, but the Cu recovery rate is usually below 90%. ...
WhatsApp: +86 18221755073
Reducing the copper content in the feed increases the losses of copper in the slag. The dependences of the copper content in waste slag on content of magnetite and zinc indicate that an increase ...
WhatsApp: +86 18221755073
Copper smelting slag recovered from the excavations at Itziparátzico has been analyzed for microstructure and compositional properties using light microscopy, x-ray fluorescence …
WhatsApp: +86 18221755073
The results showed that copper and cobalt contents in cleaned slag could decrease averagely to 0.18% and 0.071% respectively after cleaning. 91.99% Cu and 92.94% Co and less than 38.73% Fe were recovered from the smelter slag under the optimum conditions: 6 wt.% coke, 20 wt.% pyrite and 6 wt.% CaO addition to the smelter slag, smelting ...
WhatsApp: +86 18221755073
0086-21-58386256
Our office time Mon - Sat 10.00AM - 7.00PM Sunday CLOSED
Copyright © 2024.Con All rights reserved.sitemap