Feb 08, 2017· 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 copper-bearing mineral after a detailed mineralogy analysis via polarizing microscope, SEM and XRD.
Correlated the slag mineralogy with flotation performance of copper sulphide. The role of single collectors and collector mixture were evaluated in terms of copper grade and recovery. Examined the flotation results to investigate that whether there was synergistic effect arising from mixing collectors.
Copper slag (CS) is a by-product obtained from the process of copper manufacturing (Schlesinger et al., 2011), with approximately 40 million ton of the slag generated annually worldwide (Obe et al
The resulting copper particles in the slag are sometimes referred to as copper fog rendering the copper in the slag unrecoverable by milling and flotation. smelters using slag milling and flotation for slag cleaning generally operate under conditions where most of the copper in slag would tend to form cu 2 s upon cooling, although some
approximately 12 million tons of copper slag is produced every year, and the amount of accumulated waster copper slag reached 140 million ton by 2015 in China [6]. Generally, copper slag contains about 35–45 wt. % iron and 0.5–1.5 wt. % copper, indicating that it is a valuable secondary resource for recycling and utilization [3].
copper slag recovery through a flotation route. Almost in all of the flotation methods used to recover copper from slags, the Cu recovery was associated with many problems such as high grade of copper in tailing. In the present study, the use of grinding time increased the copper slag recovery a lot.
Mar 01, 2004· For separating copper from reverberatory slag with a copper content of about 1%, flotation was used, and in one stage flotation a recovery of 72% to a concentrate containing 12.6% copper was achieved. Application of R407 at a concentration of
Slag flotation: It requires slow cooling, crushing, grinding and flotation of slag with copper metal and sulphide particles reporting to the flotation concentrate. Main Metals Recovery: Copper 14 Third International Slag Valorisation Symposium │ Mario Sanchez, Michael Sudbury. 02/04/2013
copper slag corresponds to 30–40 % iron, 35-40% silica, less than 10 % of alumina and calcium oxide and copper content is around 1 %Cu, similar to the ore mined. Cleaning of the primary slag is often economically justified and techniques including slow cooling and flotation, or pyrometallurgical or
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 minimum energy consumption and maximum recovery of
Table 9: Performance of slag cements prepared by using 35% copper slag at different fineness. Observation and Analysis: Chemical analysis of granulated blast furnace and copper slag are given in Table 1. The results indicate that granulated blast furnace slag conforms to all the requirements of Indian Standard Specification IS: 12089-1987 for the manufacture of PSC unlike copper slag.
The resulting copper particles in the slag are sometimes referred to as copper fog rendering the copper in the slag unrecoverable by milling and flotation. smelters using slag milling and flotation for slag cleaning generally operate under conditions where most of the copper in slag would tend to form cu 2 s upon cooling, although some
Mar 01, 2004· The optimum condition for flotation of the reverberatory furnace slag at Sarcheshmeh Copper Complex is as follows : pH=11.5; R407=30 g/t; solid in pulp=30%; flotation time=12.5 min; MIBC=35 g/t. Slow cooling of the molten slag (in the range of 1300–900 °C) increases the copper recovery considerably (about 85%), and can also reduce the comminution time to less than 30 min.
Slag flotation: It requires slow cooling, crushing, grinding and flotation of slag with copper metal and sulphide particles reporting to the flotation concentrate. Main Metals Recovery: Copper 14 Third International Slag Valorisation Symposium │ Mario Sanchez, Michael Sudbury. 02/04/2013
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, Outokumpu facility, Finland,
Key words: Converter slag, flotation, copper, cobalt, sulphurization. 1. Introduction Copper slag is produced in large amounts in seven copper smelter plants in Chile, and it is estimated that around 4 million tons of slag are disposed every year and another
copper slag corresponds to 30–40 % iron, 35-40% silica, less than 10 % of alumina and calcium oxide and copper content is around 1 %Cu, similar to the ore mined. Cleaning of the primary slag is often economically justified and techniques including slow cooling and flotation, or pyrometallurgical or
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 minimum energy consumption and maximum recovery of
3:6:6 of slag/pyrite/copper concentrate rate then roasting at 600 °C at 5 hours. Besides, it was determined that all of Se, Te, Sb and As can be removed from the mixture of slag/pyrite/copper concentrate rate. Key words: Copper, cobalt, slag, roasting, pyrite, copper concentrate. 1. Introduction Significant amounts of copper, cobalt and nickel
Slag flotation This slag cleaning process requires slow cooling, crushing grinding and flotation of smelter slag with copper metal and sulphide particles reporting to the flotation concentrate. This process was widely used in the past by small miners because it is a very simple and effective way to recover copper. The slag flotation has become less
Copper recoveries in the flotation process of smelter slag reaches the value of about 45- 50%. Slag in RTB plants is processed in a facility that is not designed for slag processing but it is only adapted to these conditions. The obtained results are worser than the expected ones and testing that could improve them will continue. This paper shows the way of obtaining the flotation concentrate of smelter slag with
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
S. Bulatovic, "Flot ation of Oxide Copper an d Copper Cobalt Ores," in Handbook of Flotation R eagents: Chemistry, Theory and Practice Volum e 2, Elsevier Science a nd Technology Books,
Sep 21, 2012· Smelters using slag milling and flotation for slag cleaning generally operate under conditions where most of the copper in slag would tend to form Cu 2 S upon cooling, although some metallic copper may still form via reaction 3.7 Ideally, the slag should be slow cooled to allow most of the copper to form larger matte prills (over 30 μm in size
Recovery Of Copper From Copper Slag And. Fig 4 Copper extractions from the copper smelter slag and the copper smelter slag flotation tailings as a function of time at different initial ferric iron concentrations By comparing Figure 2 and 4 it can be seen that both the copper extractions and the copper dissolution curves were similar in
Effect of Copper and Iron Ions on the Sulphidizing Flotation of Copper Oxide in Copper Smelting Slag Figure 5 Effect of Cu 2+ and Fe 3+ on the zeta potential of sulfidized CuO.
slow cooled copper slag. Greater understanding, improved performance “The best flotation performance was achieved with the 50:50 addition ratio of DSP 330 and SIBX, with a copper recovery of 92.4% for a head grade of 5.4% and a cut-off copper grade of 24-25%.” Pengfu Tan, Alberto Galvez, Lucya Yunus– Mount Isa Mines
Process for the flotation of anode slime from copper electrolysis comprising subjecting the anode slime, as a preliminary treatment, to attrition treatment in combination with a copper leaching treatment in a medium of an acid solution. The floated material obtained from the flotation is continuously subjected to three processes of roasting, melting and cupellation in a rotary furnace lined
cooling and flotation. Metals recovered include copper, gold, nickel, cobalt and PGM’s [ 10, 11 ]. 3. Non Ferrous slags 3.1 Physico chemical antecedents Figure 2 explains the behaviour of the FeO-Fe 2 O 3-SiO 2 ternary system, which best represents acid slag associated to copper extraction. It is possible to appreciate a liquid region inside
The obtained slag is treated by a milling–flotation process, which each year generates increasing amounts of copper flotation waste and has reached about 150 000 tonnes year–1 for the last 10 years. As a result of this activity, about 1.5–2 million tonnes of slag and copper flotation waste have been disposed of on the flood plain of the
Copper Slag Gradation: Reverberatory copper slag can be processed into coarse or fine aggregate material for use in embankment applications. Copper slag can readily satisfy the gradation and physical requirements of AASHTO M145. (11) Unit Weight: Copper slag has a unit weight of 2800 to 3800 kg/m 3 (175 to 237 lb/ft 3).
Outotec Slag Cleaning Slag cleaning at copper and nickel smelters is typically done using an electric furnace process. The design of Outotec slag cleaning furnaces is based on our extensive experience with different slag compositions and under-standing of how to optimize the process for maximum recovery.
copper flotation and screener plant in indonesia HFC Refrigerants (55) HST Hydraulic Cone CrusherHST series hydraulic cone crusher is combined with technology such as machinery, hydraulic pressure, electricity, automation, intelligent control, etc.,representing the most advanced crusher technology in the world.
Copper Slag Flotation Plant In Pakistan. Mineral Processing Equipment: copper slag flotation plant in pakistan A type of mining equipment that can trigger the development and change of the beneficiation technology industry.The main core machines are ball mills, rod mills, flotation
ready to conduct a further site visit shortly to ensure that we collate all the right data.” Due Diligence and Path Forward The reprocessing of copper slag by way of crush, grind and flotation is a relatively standard process carried out by copper operations globally. Crane and RMX have already carried out preliminary due diligence
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The invention discloses a method for producing ferrosilicon. The method comprises the following steps of performing mixed treatment on copper slags, silica and medium-and-low-rank coal so as to obtain mixed materials; performing smelting treatment on the mixed materials so as to obtain mixed molten mass of silicon-containing molten iron and ferrosilicon slags; and performing slag-iron
Table 9: Performance of slag cements prepared by using 35% copper slag at different fineness. Observation and Analysis: Chemical analysis of granulated blast furnace and copper slag are given in Table 1. The results indicate that granulated blast furnace slag conforms to all the requirements of Indian Standard Specification IS: 12089-1987 for the manufacture of PSC unlike copper slag.
Key words: Converter slag, flotation, copper, cobalt, sulphurization. 1. Introduction Copper slag is produced in large amounts in seven copper smelter plants in Chile, and it is estimated that around 4 million tons of slag are disposed every year and another
extract copper from free-milling crystallized copper slag aggregates [1, 2]. Flotation copper ground to 0.074 mm class minutes slag is carried out on the circulating water in an alkaline medium created lime [3]. Extracting copper flotation of refractory bad- devitrified lag does not exceed 45-60% on average from the dump and 76% of the converter
slag, and this constitutes one of the main by-products of the metal extraction industry [2]. The average composition of primary copper slag corresponds to 3040 % iron, 35– -40% silica, less than 10 % of alumina and calcium oxide and copper content is around 1%Cu, similar to the ore mined.
3.3 Copper slag Copper slag is a by-product material produced from the process of manufacturing copper. As the copper settles down in the smelter, it has a higher density, impurities stay in the top layer and then are transported to a water basin with a low temperature for solidification. The end product is
Some properties of a typical copper slag are shown in Table I, and it can be observed that air-cooled copper slag has a black colour and glassy appearance. The specific gravity varies with iron content, from 2.8 to 3.8. The unit weight of copper slag is somewhat higher than that of conventional aggregate. The absorption capacity of the
possible option. The copper slag contains a high content of silica and iron. The solution final pH is the most important factor affecting the removal of iron and silica from the leach solution and the overall metal recovery. Fe removal from the leaching of copper slag is done by the formation of a metal hydroxide.
cooling and flotation. Metals recovered include copper, gold, nickel, cobalt and PGM’s [ 10, 11 ]. 3. Non Ferrous slags 3.1 Physico chemical antecedents Figure 2 explains the behaviour of the FeO-Fe 2 O 3-SiO 2 ternary system, which best represents acid slag associated to copper extraction. It is possible to appreciate a liquid region inside
1 Froth Flotation Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air
stage of the tailings dump filtered from the slag flotation plant, Investments & Projects We carried out the company's largest investment program, in order to ensure the future of Codelco and to transform large mining reserves into resources for Chile.
Abstract. Almost all copper slags contain a considerable amount of Cu (0.5 3.7%) close to or even higher than copper ores. A number of methods for metal recovery from copper slag were reported These methods can be classified into three categories, flotation, leaching and roasting.
Transportation Research Record 941 Geotechnical Properties of a Copper Slag BRAJA M. DAS, ANTHONY J. TAROUIN, AND ANDREW D. JONES* The çotechnical properties of a copper slag are presented.The slag, produced at the Amer¡can Smelt¡ng and Refining Company (ASAROOI plant in El Paso, Texas, is a by-product of refining copper ore in oil-fi¡ed reverberatory fur.
The Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows. By the end of the smelt the copper had separated from the slag, which was tapped off.
condition and material for copper slag abrsives. D) What is the recommendation grain size in mm for blasting of 24” dia pipeline. @ SA 2.5 to 3 We are enclosing the recommendation chart for your kind reference: Title: A) Test Certificate and sieve Analysis report for OMGRIT HD+ Copper Slag Abrasives :