Share this :

Under the optimized condition of the coke powder content of 14wt%, the calcium-to-silicon mass ratio (Ca/Si) of 0.2, the roasting temperature of 1300°C, the roasting time of 3 h, the grinding time of 20 min, and the magnetic field intensity of 61 kA·m−1, the iron recovery rate of the copper slag can reach 91.82%, and the extracted iron ...

Efficiency of copper recovery from the slag in an electric furnace depends on number of factors, such as slag composition and properties, forms of copper, rate of oxides reduction and slag …

Leaching and recovery processes for zinc and copper from brass slag by sulfuric acid were carried out and iron and aluminum were also precipitated as hydroxides in addition to silica gel.

Nov 18, 2018· Copper slag is widely used as ...copper slag as additive in cement makingBlushing Copper cement making machine mineral processing. copper slag as additive in cement making Copper Slag As copper ...

Recovery of Copper and Cobalt from Converter Slag with a New Flotation Method Using H2S 70 sulfuric acids [12, 13] with and without pressure [13], ferric chloride [8, 14, 15], ferric sulfate [7], cyanide,

Bajčeta at al. - Analysis of copper losses throughout weak acid effluent flows ...219 2 2 42 1 MeO +SO (g) + O g →MeSO (5) Flue dust from the FSF recovered in the WHB and ESP will be re-circulated to the smelting process. Off-gas from the ESP is transported to wet scrubber and cooling

PROOF ONLY Recovery of copper and cobalt from ancient slag Waste Management & Research 3 (Cu 9 S 5), chalcocite (Cu 2 S), covellite (CuS), metallic cop-

Recovery of copper from smelting slag by sulphation roasting and water leaching 411 Materials and experimental methods Experiments were conducted using a reverberatory furnace slag from the Bor Copper Concentrator, Serbia. The slag was sampled from the crushing line before entering the

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 …

materials from copper slag. Recovery of copper, molybdenum, precious metals, silica and iron, that is the most abundant component of the slag, are the goals for this research.

4) crystals in the copper slag is one of the most effective methods to recover iron resources. It is preferable to convert molten fayalite slag to magnetite during the cooling of the slag with oxidation.

Abstract. Aiming at recovering iron from high-iron-content copper slag, this article introduced a combination technology of deep reduction and magnetic beneficiation, investigated the iron recovery efficiency and optimized the technical conditions.

Chapter 6 Copper Production Technology ... Recover copper from the loaded electrolyte solution, recover valuable byproduct metals (Au, Ag,PGMs), eliminate tramp metals ... By the end of the smelt the copper had separated from the slag, which was tapped off. SOURCE Robert Raymond,Out of tfre Fjery Furnace (University Park, PA The Pennsylvania ...

The slag type used in copper industry is normally a fayalitic based slag [2]. After processing the slag in the submerged arc furnace the slag still contains valuable metals.

Slag cleaning can enhance the recovery of valuable metals in existing pyrometallurgical processes, or can produce economic value from recycling old slag dumps. For example, a process

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 in the residue for various quantities of acid addition to leach. Effect of Acid Concentration

An industrial converter slag was treated by a selective reduction-roasting process to recovery cobalt and copper in this study. To maximizing the recovery of cobalt and copper, the major process parameters such as reducing agent, curing agent and roasting temperature were investigated.

Slag consists of compounds present in ore gangue and flux was added to reduce the melting point. The slag of copper smelting furnace slag often contains 1–2 % copper, and due to high production volume of slag, copper recovery from it becomes essential.

separation process for iron recovery from copper slag, Yang [10] obtained iron powder of 92.05% iron content with an iron recovery rate of 81.01%, and Wang [11] obtained iron powder of 92.96% iron content with an iron recovery rate of 93.49%.

Recovery of Mo from Chilean copper slag is quite attractive to secure a stable Mo supply. The feasibility of the recovery of Mo from Cu slag as Fe-Mo alloys …

Copper loss in the slag of Khatoonabad flash smelting furnace is estimated to be about 1–3 %. At present, the electric slag cleaning furnace is used for the recovery of copper from slag. However, due to low recovery efficiency of electric furnace along with high consumption of electrical energy and water, selection of a method to enable ...

Figure 2: Influence of coke on % recovery of Cu and Co from Nchanga slag 4. CONCLUSIONS The effect of reductant type and dosage on the recovery of cobalt and copper from Nchanga smelter slag was investigated in this study using ferrosilicon and coke at 1200oC for a …

The attempt in early investigation on copper recovery from the slag of di- rect-to-blister process [20] to establish a relation between reduction rate and the reducer surface has failed, be- cause of foaming of the investigated slag.

The copper content of a smelter slag is normally around 1 wt% while converter slag contains in general much more Cu (2~25 wt%), which is much higher than that of copper ore (0.5~1 wt%), due to overoxidation and entrapment of metal droplets.

Read "Base metals recovery from copper smelter slag by oxidising leaching and solvent extraction, Hydrometallurgy" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Typical Chilean copper slag contains about 0.3 mass% Mo which is the same to the grade of primary mine production of molybdenite and the copper slags also contain about 40 mass% of Fe and 1 …

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,

Recovery of Zn, Cu, and Fe from the copper smelter slag was studied. • Slag was treated with NH 4 Cl at 320 °C and product was subjected to water leaching.. Metal recoveries to the solution were 91.5% Zn, 89.7% Cu, and 88.3% Fe.

A novel hydrometallurgical method was developed to recycle valuable metals of Si, Fe and Cu from copper slag. The leaching rates of 98%, 99% and 91% for SiO 2, Fe and Cu, respectively, were obtained under optimized parameters: solid-to-liquid ratio is 1:10; concentration of hydrochloric acid is 35%; the reaction time is 2 hours and at 80-90°C.

The copper smelting slag used in this experiment was a slag from a domestic copper smelter, which was generated during smelting and refining by a continuous copper smelting method.