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· Recovery of iron from the slag was about 75 weight %. Power consumption was found to be 40 kWh. The main advantages of the present invention are: 1. 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.
Various amounts of acid were used to leach the copper slag. Figure 3 shows the effect of acid amount on the recovery of copper. The recovery of copper from the copper slag increased with an increase in the quantity of acid. The reaction was carried out with no water addition. Figure 3.
copper slag recycling plants metal oxides and produces impure copper and an iron rich slag that. at a from reverberatory furnace slag by flotation 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
The molten copper slag is managed near the smelter site. It is quenched with water resulting in a glassy, granulated, amorphous material [5]. The processing technologies are different depending on the metals to be recovered from copper slag. Magnetic separation and reduction smelting method are used to recover and separate the iron from copper
Copper Slag General Information, Process, Products, Patent, MSDS equipment used in the recovery of iron from copper slag,Copper slag has also gained popularity in the building industry for use as a fill material
· Copper slag is a byproduct yielded from a copper refinery. The annual amount of copper slag in Japan is two million tons. The copper slag has been used for cement material, sand blasting
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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 Cu – oxides Cu – sulphides SiO 2 Al 2 O
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slag were recovered to separate the pig iron and the slag. To separate and recover Fe and Cu in oxide state from copper smelting slag, coke was used as a reducing agent, and iron oxide and copper oxide were reduced to a metal phase. Since the copper smelting slag is in an amorphous phase, the Fe
system, fuel supply or gas handling equipment. alloy and an ironrich slag. At the mouth of the lance, combustion and oxidation reactions take place in the slag phase, in a very limited zone which does not penetrate the bath to a significant extent. During gas rise, oxidation occurs according to the reactions: 2FeO(slag) + CO2(gas) → Fe2O3(slag)+ CO(gas) [1] and 2FeO(slag) + 1/ 2O2(gas
· The distribution ratios of arsenic and copper between the speiss and calciumferrite or ironsilicate slag phases, defined by LAss/c = (mass % X in slag) / (mass % X in speiss) with X = As or Cu
Copper slag contains iron in the range of 42 to 45%, Thus, the process used to recover metals from slag consisting in reducing the slag at high temperatures with coke as reducing agent can be used to selectively reduce the metallic oxides according to their thermodynamic stability, and metallic phase containing mainly iron and copper is obtained. Therefore, the main objective of this work
Copper slag from the production plant at PMBA, acid plant for treatment, nickel, copper and cobalt, copper, zinc, and iron recovery from the slag of . chat online; ARCHIVED Environment and Climate Change Canada, The purpose of this Guidance Document for Management of Wastes from the Base, by copper slag treatment processes, waste water treatment plant are also . chat online; Use of
Key words: Copper, cobalt, slag, roasting, pyrite, copper concentrate. 1. Introduction Significant amounts of copper, cobalt and nickel can be obtained from copper slags, which are produced in the thousands of tons per year in copper smelters. Very different methods were used to recover metals from the copper converter slags.
Copper slag is a byproduct yielded from a copper refinery. The annual amount of copper slag in Japan is two million tons. The copper slag has been used for cement material, sand blasting
· A technique of copper, zinc, and iron recovery from the slag of the plant was proposed. The mixture of the slag and ammonium chloride (wt ratio 1:2) was treated at 320 °C for 120 min and subjected to water leaching. After separation the solid residue was treated with ammonium chloride (wt ratio 1:2) for 160 min. Recovery of zinc, copper, and iron into solution is, respectively,,
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 copperbearing mineral after a detailed mineralogy analysis via
the slag cannot be effectively utilized. Main methods in use for iron recovery from copper slag include direct beneficiation for iron recovery [3], oxidative modification [4,5] of iron oxide for iron recovery, smelting reduction for iron recovery [6,7], and direct reduction (DR) for iron recovery [8,9], etc.
recovery of iron from copper flotation slag, more prior works focused mostly on the pyrometallurgical process, such as roastingmagnetic process and smelting reduction process. The roastingmagnetic separation process is the route to convert the metals into a desired phase, which can be easily separated
Blast furnace slag contains little metal, and recovery of metal (even iron) from it is usually not important. About 220–370 kg of slag is produced per ton of iron. Blast furnace slag was used as early as 1880 as a phosphatic fertilizer. Today, blast furnace and steel slag have found a wide application in areas such as cement production, road
recover of copper and molybdenum from a slag [17]. Selective recovery of copper metal requires an oxygen potential below 106 atm. In the case of copper, increasing of oxygen potential must ensure to obtain the metal at around 106 atm, but at this level, also iron will largely present as magnetite. Molybdenum metal
The copper slag generated at Kure, has been investigated by Acma et al. (1997) for the recovery of copper, cobalt and production of magnet grade iron oxide by pyrohydrometallurgical route. The fayalitic slag analysing about % Cu and % Co is reduced with coke/graphite in a DC arc furnace to yield a liquid alloy rich in iron containing
Arslan and Arslan [7] focused on the recovery of copper, cobalt, and zinc from copper smelter and converter slags by roasting with sulfuric acid. This study used leaching experiments to investigate the effects of roasting time, acid/slag ratio, and roasting temperature on the dissolution extents of metals, achieving a total of 88 % Cu, 87 % Co,
recovery from slags. The classifier technology can also be applied to chromite and iron ores and coal fines. 1. INTRODUCTION Over the past two years Atoll (Apic Toll Treatment (Pty) Ltd) has explored various means, other than traditional spirals for the recovery of 1mm metal from slag. The search included process equipment like
PYROMETALLURGICAL RECOVERY OF COBALT FROM COPPER SLAGS . Copper smelting slags are complex materials comprising oxides, sulfides, silicates, and glassy amorphous materials. They can contain appreciable amounts of valuable metals such as copper, cobalt, and zinc, as well as iron. Mineralogical studies have shown that cobalt is present as CoO in copper reverberatory furnace slag. Copper
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