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US3666440A Method of recovering copper from slag

Us3666440a Method Of Recovering Copper From Slag

copper is recovered from copper-containing slag by putting the matte and slag in a molten state together in a slag treating furnace at a volume ration of more than 15, the melts in the furnace being maintained under agitation so that the slag and matte are in intimate contact so as to efficiently transfer copper from the slag to the matte.

CN203513767U Doublefurnace doubleside blowing slag

Cn203513767u Doublefurnace Doubleside Blowing Slag

The utility model discloses a double-furnace double-side blowing slag forming and top blowing copper making continuous converting furnace. The double-furnace double-side blowing slag forming and top blowing copper making continuous converting furnace respectively performs blowing processes in a slag forming period and a copper making period in a PS Pierce-Smith converter sequentially, and ...


Recovery Of Copper From Smelting Slag By

Pyrometallurgical production of copper generates two slags smelting furnace slag and converter slag which contain 0.5-2 Cu and 2-8 Cu, respectively. The following three methods are generally utilized for recovering the copper from these slags on an industrial scale i recycling of the converter slag to the smelting furnace,

Recovery of Copper from the Slag of Khatoonabad Flash

Recovery Of Copper From The Slag Of Khatoonabad Flash

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 copper ...

Physical chemistry of copper smelting slags and

Physical Chemistry Of Copper Smelting Slags And

in slag CaO, Al2O3, MgO and ZnO, the sulphur dioxide partial pressure pSO2, temperature and matte composition were examined with respect to the slag liquidus and copper level in the slags.

copper slag processing

Copper Slag Processing

Process and Arrangement for Extracting a Metal from Slag a. The invention is directed to a process for extracting a metal from a slag containing said metal wherein the liquefied metal-containing slag is heated in at least one electric arc furnace 1 2 In order provide an improved method for recovering especially copper from slags the invention provides that the metal-containing slag is heated ...

Enhancing the flotation recovery of copper minerals in

Enhancing The Flotation Recovery Of Copper Minerals In

Jan 01, 2020 The slags produced from the NCS furnaces TSL furnace, copper converter, reverberatory furnace contain copper ranging between 0.8 to 5 ww. Due to this high content of copper, the slags are milled and floated to recover the copper. The main drawback in the current process is that the final flotation tailings grades are in excess of 0.9 Cu.

PDF Catalytic activity in oxidation reactions of copper

Pdf Catalytic Activity In Oxidation Reactions Of Copper

The aim of the present study was to characterize the fayalite crystal phases in two types of copper slag flash smelting furnace slag FS and converter CS slag, given their possible use in ...

Comprehensive review on metallurgical recycling and

Comprehensive Review On Metallurgical Recycling And

May 01, 2021 3.3. Physical properties. The typical copper slag is generally black or dark brown in colour and its density is in the range of 3.2 4.5 gcm 3, mainly depending on the content of Fe Sarfo et al., 2017b.The average true density of copper slag is approximately 3.8 gcm 3, which is denser than the ordinary natural aggregates Shi et al., 2008. ...

Recovery of copper and cobalt from ancient slag G252lay

Recovery Of Copper And Cobalt From Ancient Slag G252lay

Apr 01, 2006 About 2.5 million tonnes of copper smelter slag are available in K re, northern part of Turkey. 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.

Ammonia leaching of slag from directtoblister copper

Ammonia Leaching Of Slag From Directtoblister Copper

Aug 25, 2020 Smelting of copper concentrates in a flash furnace directly into a copper blister results in the production of slag with high copper and lead content. The recovery of these metals is carried out in an electric furnace, from which copperleadiron metallic alloy is then processed in a converter furnace. In the presented work, copper and lead extraction studies were carried out by ...

Preparation of Black Ceramic Tiles Using Waste Copper Slag

Preparation Of Black Ceramic Tiles Using Waste Copper Slag

Copper slag and stainless steel slag of Electric Arc Furnace EAF are two typical metallurgical solid wastes, which contain a large number of valuables, such as Fe, Cr, and Cu. The transition metal elements in the waste slags, such as Cr and Fe, can be recycled as the coloring ions in the black ceramic tile. In this study, the FeCr molar ratio in the raw materials of copper slag and ...


Recovery Of Pig Iron From Copper Smelting Slag By

Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt. copper and 40 wt. iron depending upon the initial ore quality and the furnace type. Main components of copper slag are iron oxide and silica. These exist in copper slag mainly in the form of fayalite 2FeO SiO2.

Mechanical and Microstructural Properties of Copper

Mechanical And Microstructural Properties Of Copper

Physical and chemical properties of copper slag CPS CPS components CPS, Fe 2 O 3 55.00 SiO 2 31.20 Al 2 O 3 2.42 MgO 1.54 CaO 5.37 Na 2 O 0.25 SO 3 1.92 K 2 O 0.66 Specific gravity 3.50 3. RESULTS AND DISCUSSION . 3.1. Effect on workability . Workability, one of the significant properties of plastic concrete, was done using slump cone ...

123 Primary Copper Smelting

123 Primary Copper Smelting

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.


Background Report Primary Copper Smelting

typically contains as much as two percent copper. This slag can be recycled to the flash furnace, or its copper content can be recovered in a slag cleaning furnace, often electric. The flash furnace offgas contains anywhere from 10 to 80 percent by volume sulfur dioxide SO 2. In all domestic copper smelting facilities utilizing flash smelting ...

Improving Beneficiation of Copper and Iron from

Improving Beneficiation Of Copper And Iron From

2.1. Materials 2.1.1. Copper Slag The copper slag used in the experiments is a byproduct generated during the cleaning of electric furnace slag and rening of copper in Tongling Non-ferrous Metals Group Holding Co., Ltd Tongling, China. As shown in Table1, the main chemical compositions contained in the waste slag are 42.85 wt.

Control of Copper Smelter Fugitive Emissions

Control Of Copper Smelter Fugitive Emissions

The copper content of the slag is maintained at 0.5 to 0.6 percent Cu by maintaining a reducing atmosphere in the slag cleaning furnace. The slag then flows by gravity to the converter furnace. The converter furnace produces anode copper which flows to a holding furnace prior to anode casting. Slag from the con- verter furnace is granulated ...


The Electrical Characteristics Of Copper

Figure 1. Schematic diagram of a direct current slag resistance furnace DC-SRF An approximate amount of 2 million tons of copper smelting slag has been lying on the northern part of Turkey-Kure dating back Genoese Times. This nickel free slag contains 0.4 Co and 0.82 Cu.

Anaconda smelter Montana Anaconda Copper Mining

Anaconda Smelter Montana Anaconda Copper Mining

Anaconda Copper Mining Company. Returning the first slag from the converter to the reverberatory furnace. The first few ladles of slag always contain some copper, and to redeem this copper the slag is returned to the furnace. Anaconda Anaconda. Deer Lodge County Montana United States, 1942. Sept.

Minimizing of copper losses to converter slag by a boron

Minimizing Of Copper Losses To Converter Slag By A Boron

Nov 01, 2019 Considering the initial copper content 4.45 Cu in converter slag, it can be deduced from the Fig. 6 that the loss of copper to the slag is decreased to very low levels 2.5 Cu independently of CC addition. It is concluded that the copper losses can be significantly reduced by keeping the converter slag in the settling furnace.

A Study on Reduction of Copper Smelting Slag by Carbon

A Study On Reduction Of Copper Smelting Slag By Carbon

Copper slag is produced during the manufacturing of copper, and for every ton of copper production about 2.2 tons of copper slag are generated, and 1.5 million tons of copper slag are generated in Korea every year 1,2,3,4,5. Dumping or disposal of copper slag causes wastage of metal values and leads to environmental problems.

PDF Pyrometallurgical Refining of Copper in an Anode Furnace

Pdf Pyrometallurgical Refining Of Copper In An Anode Furnace

However, when the dissolved copper in slag is just oxidic, as in direct white metal production or in converting process, this slag is quite attractive and can be regarded as the third copper ...

Copper Loss in Slag ResearchGate

Copper Loss In Slag Researchgate

Cu smelters produce two slags smelting furnace slag with 12 Cu and converter slag with 48 Cu. Discard of these slags would waste considerable Cu, so they are almost always treated for Cu ...

Copper Slag Price 2021 Copper Slag Price Manufacturers

Copper Slag Price 2021 Copper Slag Price Manufacturers

Copper Slag Price - Select 2021 high quality Copper Slag Price products in best price from certified Chinese Brass Copper manufacturers, Iron And Copper suppliers, wholesalers and factory on Made-in-China.com ... Copper Smelting Furnace Competitive Price High Qualtiy Magnesite Chrome Bricks . FOB Price US 300-350 Ton Min. Order 2 Tons.

Utilisation of copper slag for cement manufacture

Utilisation Of Copper Slag For Cement Manufacture

May 01, 2007 As the copper slag is found to contain an appreciable amount of Fe 2 O 3, a maximum of 2.5 of copper slag is recommended in the raw mix for manufacture of OPC. The performance of OPC prepared with 2.5 copper slag as raw mix component indicates that at a fineness of 301.0m 2 kg, the cement satisfies all the requirements of Indian Standard ...

Recovery of copper from granulated blast furnace slag

Recovery Of Copper From Granulated Blast Furnace Slag

Jul 31, 2020 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.The furnace can be designed with effective working volume minimal m3, suitable for the recovery of anode slime, PM-containing smelting slag, lead ...

Characterization of copper slag for beneficiation of iron

Characterization Of Copper Slag For Beneficiation Of Iron

Apr 01, 2021 Globally a large volume of copper slag is produced which can be approximated to 2.2 tons of slag generated for every ton of copper produced .The annual worldwide production of slag is approximately 24.6 million tons in the early century 6, 7 and increasing at a rate of 11 per year .Table 1 illustrates the magnitude of slag produced in different areas in the world and Botswana ...

Original Research Physicochemical Mineralogical

Original Research Physicochemical Mineralogical

into several categories like copper electric furnace slag, converter slag, reverberatory furnace slag and so on 1-2. In a typical copper pyrometallurgical process, approximately 2.2 tons of waste CSS generated for every ton of copper produced 3-4. The annual global output of CSS is an average of 25 million tons. In China, blister copper ...

Utilization of copper slag in cement and concrete

Utilization Of Copper Slag In Cement And Concrete

A total of 20 Mt of primary copper are produced worldwide, and this involves 45 Mt of slag generated in the process 2.2-3 tons of slagton copper 2,12,13, which would represent 20 Mt Fe and 0 ...

PDF Recovery of pig iron from copper smelting slag by

Pdf Recovery Of Pig Iron From Copper Smelting Slag By

The copper slag is produced during manufacturing of copper that for every ton of copper production about 2.2 tons of copper slag is generated and 1.5 million tons of copper slag is generated in ...

Strength and durability studies on slag cement concrete

Strength And Durability Studies On Slag Cement Concrete

Jan 01, 2021 Copper slag is a smooth and glassy by-product formed during matte smelting and refinement steps involved in the pyrometallurgical extraction of copper . Production of each tonne of copper is accompanied by nearly 2.2 tonnes of slag, and an approximate yearly production of copper slag all over the world is around 24.6 million tonnes 12 .

Mechanism of AlkaliActivated CopperNickel Slag Material

Mechanism Of Alkaliactivated Coppernickel Slag Material

Jan 22, 2020 A copper-nickel slag-based alkali-activated cementing material CNSCM for backfilling was prepared using copper-nickel slag as a raw material and sodium silicate SS as an activating agent. The effects of SS content 6, 8, and 10 and curing humidity on the compressive strength of CNSCM were investigated using an electronic universal testing machine.

Minimization of Copper Losses in Copper Smelting Slag

Minimization Of Copper Losses In Copper Smelting Slag

Sep 21, 2012 A significant portion of the copper loss in discard slag from such furnaces is present as dissolved copper in the form of Cu 2 O, especially toward the higher oxygen potential range of operating furnaces higher matte grades, FeSiO 2 1.5, or in the form of soluble copper oxysulfides when the slag is equilibrated with mattes of lower grade mattes 65 Cu or 12 Fe. The balance of the copper loss in commercial discard slag is as mechanically entrained copper matte and metallic copper.

AP42 CH 129 Secondary Copper Smelting

Ap42 Ch 129 Secondary Copper Smelting

removed as slag. Then, by reducing the furnace atmosphere, cuprous oxide CuO is converted to Figure 12.9-2. High-grade brass and bronze alloying. Source Classification Codes in parentheses. copper. Fire-refined copper is cast into anodes, which are used during electrolysis. The anodes are submerged in a sulfuric acid solution containing ...