copper recovery magnetic slag 25422

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Recovery of Copper from Copper Sulfide Concentrate by ...

Jan 17, 2015· fides and copper sulfide for med copper sulfate, whereas iron sulfide converted mostly to hematite at 500˚C [9]. In the present work, a sulfation roasting-acid leaching process that associated pyrometallurgical and hydro-metallurgical methods has been used for the recovery of copper from a copper sulfide concentrate. The reactions

Process for recovery of iron from copper slag - Agrawal ...

C22B15/00. 1. A process for the recovery of iron from copper slag which comprises: i. selecting and grinding the copper slag to [the] a size in the range of 2-15 mm. ii. mixing homogeneously copper slag, a reductant and a flux in the ratio range between 20:1:4 to 20:3:10. iii.

Recovery of Copper from Reverberatory Copper Slag and ...

The slurry was stirred by magnetic stirrer. A schematic flow diagram of the leaching of copper from copper slag is shown in Figure 1. ... The optimum digestion temperature is 250oC, at which a high recovery of copper from copper slag is achieved. Figure …

Recovery of metal values from copper slag and reuse of ...

Dec 01, 2017· Recovery of copper from copper slag by physical beneficiation using froth flotation was studied by Sarrafi et al. (2004). They used mercaptobenzothiazole (MBT) collector to recover the copper from the ground copper slag and indicated that a slow-cooled slag would be more favorable for better copper recovery.

Liberation and Enrichment of Metallic Iron from ...

Using the developed process, a magnetic product containing more than 65 wt.% iron was obtained from magnetic separation under a magnetic field strength of 0.03 T for the waste copper slag treated ...

Leveraging a Resource Recovery Opportunity - Sembcorp ...

Leveraging a Resource Recovery Opportunity. Used copper slag is one of the largest by-products of shipyard operations. The industry generates an estimated 300,000 tonnes of copper slag a year. Conventional methods of disposal relied heavily on landfill dumping which contributed negatively to the environmental landscape of land-scarce Singapore.

Synergetic utilization of copper slag and ferruginous ...

Mar 20, 2020· 1. Introduction. Copper slag (CS) is a kind of hazardous waste generated during the copper-smelting process from copper sulfide concentrates (Potysz et al., 2017).About 2–3 tonnes of CS are generated per ton of produced blister copper (Potysz et al., 2017, Gbor et al., 2003).Because of the increasing demand of copper and rapid development of the copper industry, the annual output of …

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3. Electrolytic copper includes copper for electric wire-bars, copper cakes and billets. 4.のはをいてしてある。 4. Imports of electrolytic lead excludes crude lead. 5.のは、をし、それのはをむ。 5.

Deep reduction recovery of iron from copper slag | IIETA

Dec 31, 2018· This paper explores the effects of reductant, flux, reduction temperature and reduction time on the iron content and iron recovery rate of the deep reduction product from copper slag containing 41.47% of iron. Through a series of tests, it is concluded that reduction temperature and reduction time are leading influencing factors on the two ...

Recovery of copper and cobalt from ancient slag - Gülay ...

Apr 01, 2006· This slag contains large amounts of metallic values such as copper and cobalt. A representative slag sample containing 0.98% Cu, 0.49% Co and 51.47% Fe was used in the experimental studies. Two different methods, direct acid leaching and acid baking followed by hot water leaching were used for recovering Cu and Co from the slag.

Shandong University

4.8029999999999999 24875 2015. 4.8029999999999999 25148 2015. 3.2890000000000001 24485 2015. 2.383 26452 2015. 3.09998 25600 2015. 2.359 26106 2015. 1 ...

Copper extraction - Wikipedia

Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.. As in all mining operations, the ore must usually be beneficiated (concentrated).

12.9 Secondary Copper Smelting

to form a solution of copper sulfate (CuSO4), which can then be either mixed with the electrolyte in the refinery cells or sold as a product. 12.9.2.2 Smelting - Smelting of low-grade copper scrap begins with melting in either a blast or a rotary furnace, resulting in slag and impure copper.

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Shandong University

25422 2015. 1 2.347 23448 2015. 1 3.2890000000000001 24429 2015. 0 4.7850000000000001 26050 2015. 3 5.7709999999999999 26594 2015. 0 3.2890000000000001 24391 2015. 0 2.76 23118 2015. 3 3.5590000000000002 23018 2015. 12 6.7320000000000002 22547 2015. 2 0 25321 2015. 1 4.99999 23267 2015. 6 2.6859999999999999 24903 2015. 1 2.76 23270 ...

US4802917A - Copper smelting with calcareous flux - Google ...

A process for autogenously smelting copper sulfide ore concentrate directly to semi-blister copper in which a calcareous flux is charged directly to an autogenouse furnace along with concentrate and copper-containing coolant. Furnace products are semi-blister copper, calcareous slag and …

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External Trade Statistics Puerto Rico 2013 Luis García Pelatti Chairman Julio César Hernández Correa, Ph.D Director Program of Economic and Social Planning Sr. Juan Cruz Urbina [email protected] Director Subprogram of Economic Analysis Editorial Board Analyst William Galindo Irizarry [email protected] Glorimar Morales Rivera [email protected] Gerardo Sánchez …

Slag Cleaning Processes: A Growing Concern | Scientific.Net

Despite the fact that long established slag cleaning processes perform reasonaby well for slags in the range 1.5% - 2.5% in copper, i.e. coexisting matte in the order 60% in copper content, they must be reconsidered when applying to slags equilibrating with high matte grades and/or white metal. The present study concentrates on the mechanism of ...

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When the amount of red mud was added 20%, the recovery rate of the modified slag magnetic separation fine powder reached 84.0%, of which the iron grade reached 52.5%, and the iron grade increased by 7.4% compared with unmodified copper slag. After magnetic separation, the tailings can further produce ceramics with excellent performance.

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Tipper, slag Tipper, shale Tipper, scrap Tipper, ore Tipper, metal Tipper, coal Tipper, ballast Tipman Tipman, refuse Tinter Tinter, paint Tinter, enamel Tinsmith Tinsman, drying Tinplater Tinner Tinner, wire Tinner, grease Tinner, fruit Tinner, copper Tinner, coil Tinker Tindal, first Timer Timekeeper Timberer Tilterman Tilter Tiler and ...

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A Study on Reduction of Copper Smelting Slag by Carbon for ...

Jan 17, 2020· Main components of copper slag are iron oxide and SiO 2, these exist in copper slag mainly in the form of fayalite (2FeO·SiO 2). The processing technologies are different depending on the metals to be recovered from copper slag. Hydrometallurgical treatment is widely used on copper recovery from copper slag that

Heavy Metal Recovery from Slags of Copper Production via ...

4 Slag cleaning by using additives The copper recovery from slag during smelting is generally related to the settling be-haviour of the matte. The settling velocity mainly depends on the size of the particles. Metallic/matte droplets with a big diameter settle very fast, smaller particles settle much slower to the ground of the bath.

Recovery of iron from copper slag by deep reduction and ...

Nov 20, 2013· 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. When coke powder with 86wt% fixed carbon was used as a reductant, iron was successfully extracted from the copper slag. Under the optimized condition …

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Subaru's EJ255 engine was a turbocharged 2.5-litre horizontally-opposed (or 'boxer') four-cylinder engine. For Australia, the EJ255 engine was introduced in the Subaru SG Forester XT in 2003, but subsequently offered in the GD/GG Impreza WRX and BL Liberty GT (see table below). Developed in conjunction with the more powerful EJ257 engine, key features for the EJ255 engine included its:

Effect of Na2CO3 Addition on Carbothermic Reduction of ...

Copper smelting slag is a useful secondary resource containing high iron and copper, which can be utilized to prepare crude Fe-Cu alloy by a direct reduction–magnetic separation process for making weathering-resistant steel. However, it is difficult to recover iron and copper from the slag by direct reduction since the iron mainly occurs in fayalite and the copper is held in copper sulfide.

(PDF) Slag cleaning reactor for metal recovery in copper ...

The new process for slag cleaning includes a rectangular DC reactor with an additional magnetic field generated by electromagnets for improved metal/matte recovery. The slag into the reactor is ...

WO2010058188A1 - Plasma method and apparatus for recovery ...

The present invention relates to a method, and apparatus for the recovery of precious metals. Accordingly, it provides a continuous process for obtaining a precious metal composition from a feedstock material, the process comprising the steps of : (i) heating a feedstock material in a plasma furnace to form an upper slag layer and a lower molten metal layer; (ii) removing the slag layer; (iii ...

RECOVERY OF COPPER FROM SMELTING SLAG BY …

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.

Minerals | Free Full-Text | Stepwise Utilization Process ...

Waste copper slag is a typical hazardous solid waste containing a variety of valuable elements and has not been effectively disposed of so far. In this paper, a stepwise extraction process was proposed to recover valuable elements (copper, iron, lead and zinc) from waste copper slag. The specific procedures are as follows: (1) A flotation process was adopted to enrich copper, and when the ...

Innovative methodology for comprehensive and harmless ...

It is very difficult to extract valuable metals from copper slag and nickel laterite through traditional separation processes due to their complex mineral structure. In this work, a selective co-reduction and magnetic separation process was developed to economically and eco-friendly clean copper slag and synchronously upgrade nickel laterite.

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DIN 1769 rectangular bars of aluminum and aluminum alloys, drawn with sharp edges, September 19 EN 754-5 DIN 1770 rectangular bars of aluminum and aluminum alloys, pressed January, replaced in 1987 by D DIN 1786 installation copper tubes, nahtlosgezogen, May 1996 replaced by DIN EN 1057 DIN 1787 copper - semi-finished products DIN 1804 locknuts ...

copper recovery magnetic slag 25422

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