The three converter slag samples used in the investigation were obtained from a western smelter. Chemical analyses of the respective slags are presented in table 1. Slag sample A, which contained 1.6 percent copper, …
A combination of waste acid leaching and CaO roasting methods was investigated to recover copper from refining slags of copper fire anode furnace and other …
Several researchers have investigated the possibilities of recovering copper from discarded copper slag. Gravity concentration, froth flotation, roasting and …
iron recovery from slags BINQ Mining. May 12, 2013 · A process for the recovery of iron from copper slag which ... The 20 Mt reverberatory furnace slag dump at Nkana in Zambia ... banded iron ore flotation;
Recovery of valuable metal from copper electric furnace slag (CEFS) is of great interest for saving minerals and reducing pollution. XRF, XRD, mineral liberation analysis (MLA), and batch tests were conducted to investigate the mineralogical and recovery of copper and iron from CEFS. Based on the mineralogical characteristics, a …
environmental acceptability. This paper examines the potential for cobalt recovery from slags, and outlines various process options. KEYWORDS . Africa, Cobalt, Copper, Furnace, Hydrometallurgy, Pyrometallurgy, Recovery, Slag, Smelter . INTRODUCTION . Cobalt has had a number of important uses in society since antiquity, and its principal …
The reverberatory slag is produced from the reverberatory smelting furnace and usually produces the slag that is more dilute in copper of about 0.6% and is discarded without slag recovery treatment (Davenport et al., 2002). The smelter slag is produced from the smelting furnaces and contains copper with average of 1.2%.
Global copper slag (CS) emissions reached 57.2 million tons in 2021. Despite the increasing reuse of CS, the treatment of CS is still dominated by landfill so far, which not only occupies land ...
The slags produced from the NCS furnaces (TSL furnace, copper converter, reverberatory furnace) contain copper ranging between 0.8 to 5% w/w. Due to this high content of copper, the slags are milled and floated to recover the copper. The main drawback in the current process is that the final flotation tailings grades are in …
During ISA copper smelting process, ISASMELT furnace discharges a large amount of matte and slag mixture and the separation of them has an important influence on the recovery of valuable metals. This paper presented a reduction-sulfurization sedimentation process for recovering copper and cobalt from the matte–slag mixture …
Factors influencing base metal recovery from waste reverberatory furnace slags Titania is also classified as an amphoteric oxide, depending on its concentration in the slag and the ratio of other network formers and network modifiers in the slag. CaO has a higher affinity for SiO 2 than FeO has, according to Sommerville et al. (1982). Therefore, when it is …
Converter copper slag can be viewed as an important secondary resource for valuable metals, considering its high commercial value. The current research investigates the recycling of copper by a combination of theoretical and experimental methods. Based on a modified Stokes equation, it was determined that copper droplets …
TBRC is an advanced smelting equipment for treating anode slime, WEEE, non-ferrous metal smelting slag and setting slurry to recover gold, silver and other precious metal. It …
As the world's largest producer of refined copper, China accounts for about 1/3 of the world's production. At present, China's refined copper is mainly produced by pyrometallurgy [1,2,3].The annual discharge of copper slag exceeds 10 million tons according to the calculation of 2.2 tons of copper slag per ton of refined copper …
Some studies have attempted to recover metal values from copper slag. This research was intended to recover ferrous alloy contained Cu, a raw material of zinc, from copper slag, and produce reformed slag such as blast furnace slag for Portland cement.
The technical feasibility of recovering copper, nickel, and cobalt from smelting and converting slags using Ausmelt's top-submerged lancing process has been …
The early development of the reverberatory furnace for smelting copper ores was the work of the Welsh smelters, particularly those of Swansea. The first record of a reverberatory furnace is made by Jars, who states that copper-smelting was effected in reverberatory furnaces at Middleton-Tyas, in Yorkshire, England.
DOI: 10.1016/J.MINENG.2003.10.018 Corpus ID: 96341853; Recovery of copper from reverberatory furnace slag by flotation @article{Sarrafi2004RecoveryOC, title={Recovery of copper from reverberatory furnace slag by flotation}, author={Amir Hossein Mohsen Sarrafi and Behzad Rahmati and Hessam Hassani and Hassan Haji Amin Shirazi}, …
Materials. The smelting slag used in this study was obtained from a copper plant in China. Mineralogical analysis, performed using scanning electron microscope (SEM) and energy dispersive X-ray spectroscope (EDS), polarizing microscope and X-ray diffraction (XRD), indicated that fayalite (Fe 2 SiO 4) and magnetite (Fe 3 O 4) phases …
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 …
Outotec Direct Blister Flash Smelting for copper With this process, blister copper is produced directly in a flash smelting furnace without the need for separate converting …
The produced slag from each of the two slag blows is transferred to the slag cleaning furnaces (along with flash furnace slag) for cleaning prior to discharge, while the high copper slag from the ...
DC-arc furnace technology has been successfully applied to the recovery of cobalt, nickel, and copper from non-ferrous furnace and converter slags. Pilot-plant testwork at Mintek has demonstrated recoveries of …
ABSTRACT A combination of waste acid leaching and CaO roasting methods was investigated to recover copper from refining slags of copper fire anode furnace and other valuable metals. The influences of the leaching temperature, leaching time, liquid-solid ratio, and airflow rate on the recovery rates of Cu, Fe, and As were separately evaluated …
The variety of slag compositions of Table 1, is inherent to both the concentrate composition and the extraction method applied.Each slag composition requires an appropriate treatment method for further metal recovery or for utilization as construction material [27,28].Thermal reduction of copper smelter slags with solid carbon is …
the recovery of copper from reverberatory furnace discard slags. Key words: Copper recovery, Blast furnace slag, Reduction process, Smelting Introduction Copper blast furnaces are employed in the pyrometal lurgical treatment of low-grade copper concentrates. The function of the blast furnace is to economically smelt
A combination of waste acid leaching and CaO roasting methods was investigated to recover copper from refining slags of copper fire anode furnace and other valuable metals. The influences of the leaching temperature, leaching time, liquid-solid ratio, and airflow rate on the recovery rates of Cu, Fe, and As were separately evaluated …
Recover Copper from Reverberatory Furnace Slag. Laboratory and pilot plant investigations have indicated that copper recoveries of 50% can be achieved with fine grinding and flotation of a …
Electronic goods are a major consumer of many critical metals, including copper, nickel, tin, zinc, lead, and precious metals. The processing of end-of-life electronic equipment (E-Scrap) is becoming …
Waste electrical and electronic equipment (WEEE) represents a significant urban resource for precious metals. To maximize the recoveries and sustainable use of these metals, their behavior needs to be characterized in the secondary copper smelting of WEEE. The current study experimentally determined the distributions of gold, silver, …
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