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Application of copper slag in geomagnetic .

smelting furnace which would enable radiometric dating by 14C. Hence slag has the possibility of combining the advantages of good performance during the paleointensity experiment and the availability of precise radiometric dates. In many localities slag deposits are found as large multilayer waste mounds which represent intensive copper production

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Minimization of Copper Losses in Copper Smelting .

The authors further consider that under exceptionally well-controlled conditions, a copper content in electric furnace discard slag between 0.55 wt.% and 0.7 wt.% can be obtained, by minimizing ...

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Minimization of Copper Losses in Copper Smelting .

2012-9-21 · During the last few decades, the pyrometallurgical processes used for cleaning copper smelting slags have been steadily optimized. The electric furnace or rotary slag-cleaning furnace are now generally used to perform this task, giving a level of copper in discard slag typically in the range of 0.55 wt.% and 1.3 wt.%, with most plants reporting copper losses in the discard slag in the range of ...

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Improving Copper Recovery from Production Slags by ...

2013-10-14 · Keywords: slag cleaning, stirring mode, copper slag, submerged arc furnace, stirring reactor Abstract Slags resulting from pyrometallurgical copper processes are important by-products to be controlled in structure and composition. Due to the significant volumes of slag compared with those of the

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Minimization of Copper Losses in Copper Smelting Slag ...

2017-8-29 · electric furnace slag from the Paipote smelter, to-gether with a given amount of silica sand to obtain two different Fe/SiO 2 ratios in the slag (1.4 and 1.6). The composition of the slag sample received from 2 6 furnace. Copper Copper Copper Copper 2 3 2

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A STUDY ON REDUCTION OF COPPER SLAG FROM .

concentration of copper oxide in the slag is approx. 0,003 % mass, i.e. it is markedly lower than its fi nal level in the slag that is a product of a technological process. The ther-modynamic analysis has showed that at equilibrium, the slag PbO reduction practically begins when the copper (as Cu 2 O) level in the slag is lower than 3 % mass. In

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SHAFT SLAG FURNACE (SSF) | WWW.COPPER .

Shaft furnace is high efficiency equipment with high heat-availability factor of fuel consumption due to material and gases opposite flow within the furnace. The main purpose of slag processing is extraction copper out of copper, brass and bronze slag fractions of 30 – 100 mm with copper content not less than 5 %, receiving molten metal and ...

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(PDF) EFFECT OF COPPER SLAG on the HYDRATION of .

The strength of copper slag mixtures are significantly superior to the control specimens. With the addition of lime at the higher percentages of copper slag (15% copper slag and 1.5% lime as activator), the compressive strength increased from 30 MPa at the 28th day to .

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RECOVERY OF COPPER FROM SMELTING SLAG BY .

2015-11-11 · 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 milling section of the concentrator.

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Miors slags | Products of Copper Slag

2019-6-14 · Copper Slag Ap. Copper Slag is a by‐product obtained during the matte smelting and refining of copper. It is formed when molten slag is cooled slowly, forming a dense, hard crystalline product. Quick solidification by pouring molten slag into water gives granulated amorphous slag.

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RECOVERY OF COPPER FROM SMELTING SLAG BY .

2015-11-11 · 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 milling section of the concentrator.

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THE EFFECT OE SLAG COMPOSITION ON COPPER LOSSES .

2016-6-15 · 1. Copper Oxide in Slag Versus Oxygon Partial Pressure for ' 6 Silica-Saturated Iron Silicate Siege 2. Relation Between Copper in Slag end Activity of Copper 9, in the Alloy 3. Copper Solubility in Slag as a Function of Copper Oxide 11 Activity from Taylor end Joffea (22) 4* Effect of Temperature on the Solubility of Copper in 13

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Alternative Reduction of Copper Matte in Reduction .

1. Introduction. At present, almost 2.2 t copper slag are produced while 1 t copper produced. 1) The cumulative stockpiling of copper slag has been up to 250 million tons. Plenty of solid wastes brought serious damages to environment. 2) With the continuous development of copper smelting technology, the smelting intensity and matte grade increasing, matte in copper slag also constantly ...

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Copper Slag for the Recovery of Metals and Valorisation .

2020-8-3 · The chemical composition of copper slag depends on the treatment process and furnace type, and is typically 30–40% Fe, 35–40% SiO 2, 10% Al 2 O 3, 10% CaO, and 0.5–2.1% Cu [2]. A significant portion of the produced slag is stockpiled [1], an option that may result in

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ISASMELT TM SLAG CHEMISTRY AND COPPER LOSSES IN .

2015-9-7 · Each furnace is rotated by a hydraulic drive linked to the furnace by a chain. By rotat-ing the furnace one way or the other, the operator can either pour the slag into the hauler pot or pour matte into a pot in the aisle. The maximum rate of slag skimming is control-led to minimize the copper content of the slag.

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THE EFFECT OE SLAG COMPOSITION ON COPPER LOSSES .

2016-6-15 · 1. Copper Oxide in Slag Versus Oxygon Partial Pressure for ' 6 Silica-Saturated Iron Silicate Siege 2. Relation Between Copper in Slag end Activity of Copper 9, in the Alloy 3. Copper Solubility in Slag as a Function of Copper Oxide 11 Activity from Taylor end Joffea (22) 4* Effect of Temperature on the Solubility of Copper in 13

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RECOVERY OF COPPER FROM COPPER SLAG AND .

2014-9-8 · 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 0.97 0.59 Cu – oxides 0.15 0.06 Cu – sulphides 0.82 0.53 SiO 2 33.75 34.62 Al 2 O

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Utilisation of copper slag for cement manufacture ...

2  · Using copper slag as a raw material for the manufacture of OPC. Materials and methods: The raw materials - limestone, copper slag, granulated blast furnace slag and bauxite were characterised for their chemical and mineralogical properties using standard procedures. The results are presented in Table 1 and Figure 1.

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STABILISATION OF CLAYEY SOIL WITH COPPER SLAG .

2018-5-29 · Copper Slag and Blast furnace slag and attained maximum value at 8.25% and 7.12% respectively and again decreases. 3. With the increases of Copper Slag and Blast furnace slag percentage, Liquid Limit, and Plasticity Index goes on decreasing. 4. It is concluded that the optimum value for both Copper Slag and Blast furnace slag is 20%. 5.

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Minimization of Copper Losses in Copper Smelting .

In the quest to achieve the highest metal recovery during the smelting of copper concentrates, this study has evaluated the minimum level of soluble copper in iron-silicate slags. The experimental work was performed under slag-cleaning conditions for different levels of Fe in the matte and for a range of Fe/SiO 2 ratios in the slag.

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Copper Launders | TENOVA

Water-cooled copper launders use the freeze lining principle to reduce component wear. Lower wear means longer launder life, cutting long-term maintenance costs and downtime production losses. Many launder designs present an inherent safety risk by positioning the water cooling passages underneath the slag .

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12.3 Primary Copper Smelting

2015-9-10 · Slag produced by flash furnace operations contains significantly higher amounts of copper than reverberatory or electric furnaces. Flash furnace slag is treated in a slag cleaning furnace with coke or iron sulfide. Because copper has a higher affinity for sulfur than oxygen, the copper in the slag (as copper oxide) is converted to copper sulfide.

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STABILISATION OF CLAYEY SOIL WITH COPPER SLAG .

2018-5-29 · Copper Slag and Blast furnace slag and attained maximum value at 8.25% and 7.12% respectively and again decreases. 3. With the increases of Copper Slag and Blast furnace slag percentage, Liquid Limit, and Plasticity Index goes on decreasing. 4. It is concluded that the optimum value for both Copper Slag and Blast furnace slag is 20%. 5.

read more

SHAFT SLAG FURNACE (SSF) | WWW.COPPER .

Shaft furnace is high efficiency equipment with high heat-availability factor of fuel consumption due to material and gases opposite flow within the furnace. The main purpose of slag processing is extraction copper out of copper, brass and bronze slag fractions of 30 – 100 mm with copper content not less than 5 %, receiving molten metal and ...

read more

Copper Slag for the Recovery of Metals and Valorisation .

2020-8-3 · The chemical composition of copper slag depends on the treatment process and furnace type, and is typically 30–40% Fe, 35–40% SiO 2, 10% Al 2 O 3, 10% CaO, and 0.5–2.1% Cu [2]. A significant portion of the produced slag is stockpiled [1], an option that may result in

read more

RECOVERY OF COPPER FROM COPPER SLAG AND .

2014-9-8 · 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 0.97 0.59 Cu – oxides 0.15 0.06 Cu – sulphides 0.82 0.53 SiO 2 33.75 34.62 Al 2 O

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Application of copper slag in geomagnetic .

We conclude therefore that copper slag material can be well suited for archaeointensity determination. 11.2. Comparison of Different Sample Types [71] Comparing the experimental behavior of specimens from the two main groups of copper slag shows little difference in terms of success rate, with a very slight preference toward furnace slag . This ...

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A BRIEF REVIEW ON BLAST-FURNACE SLAG AND COPPER .

2016-6-6 · of copper is produced, 2.2-3 tonnes of CS are gen-erated [4]. In Oman approximately 60,000 tonnes of copper slag is produced every year [5]. The pro-duction approximately 0.36, 0.244, 2.0, and 4.0 million tonnes of CS is reported in Iran, Brazil, Ja-pan and the United States, respectively [6]. Cur-rently, about 2 million tonnes of waste copper slag

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A BRIEF REVIEW ON BLAST-FURNACE SLAG AND COPPER .

2016-6-6 · of copper is produced, 2.2-3 tonnes of CS are gen-erated [4]. In Oman approximately 60,000 tonnes of copper slag is produced every year [5]. The pro-duction approximately 0.36, 0.244, 2.0, and 4.0 million tonnes of CS is reported in Iran, Brazil, Ja-pan and the United States, respectively [6]. Cur-rently, about 2 million tonnes of waste copper slag

read more

Application of copper slag in geomagnetic .

smelting furnace which would enable radiometric dating by 14C. Hence slag has the possibility of combining the advantages of good performance during the paleointensity experiment and the availability of precise radiometric dates. In many localities slag deposits are found as large multilayer waste mounds which represent intensive copper production

read more
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