• Please contact if you have any questions: +86-21-58386256
  • Opening Hour: Monday – Friday : 9am – 5pm

copper slag furnace slag copper

Reduction of copper smelting slag using waste cooking oil ...

Nov 01, 2019· Copper slag cleaning in an electric furnace consists of two steps: high-temperature reduction, and melt separation through sedimentation. High-temperature reduction, which primarily reduces the excessive Fe 3 O 4 in slag to FeO, is a critical step as it involves a chemical process that depends on many variables.

Slag Chemistry of Bottom Blown Copper Smelting Furnace at ...

Bottom blown oxygen copper smelting process, operated at high grade matte (up to 75 wt% Cu) with relatively low (2-3 wt%) Cu in slag, has been commercialized for more than five years at Dongying Fangyuan Nonferrous Metals CO., Ltd. Quenched slag and matte samples have been collected at different operating conditions while the slag temperature was measured by thermocouple.

Minimization of Copper Losses in Copper Smelting Slag ...

For these conditions, the copper losses in the slag are roughly 75% as dissolved copper and 25% as entrained matte and copper. Such conditions include operating the electric furnace at metallic copper saturation, maintaining the %Fe in the electric furnace matte between 6 wt.% and 9 wt.%, not exceeding a slag temperature of 1250°C, and ...

Dissolution of copper from smelting slag by leaching in ...

slag with sub sequential water leaching and flotation of the slag remained the two methods to which researchers most focused on copper extraction. Apart from copper, the copper smelter slag can also be a significant source of iron and silica [15-18]. The reverberatory furnace slag that was discarded in the vicinity of the Bor Copper Smelter ...

copper slag « Slag

Aug 21, 2021· The Slag is attached to a copper rod and can be attached to any surface to create a permanent slag. The Molecatenes are designed to be a competitive advantage to other metals that are used in the marine environment, such the military's use of copper as an abrasive and as a …

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

Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1.5 million tons of copper slag are generated annually in Korea. The oxides in copper smelting slag include ferrous (FeO), ferric oxide (Fe2O3), silica (SiO2 from flux), alumina (AI2O3), calcia (CaO) and magnesia (MgO). The main oxides in copper slag, which are iron oxide …

US6231641B1 - Enhanced phase interaction at the interface ...

In a copper converting furnace, the (i) reduction of copper oxide in and the removal of copper metal from the slag, and (ii) conversion of copper sulfide in and the elimination of mineral waste from the blister copper is enhanced by introducing a gas, e.g. nitrogen, into at least one of the blister copper and slag such that the gas increases the turbulence or mixing at the blister copper/slag ...

CN103451346B - Copper smelting slag reduction method ...

The invention discloses a copper smelting slag reduction method. According to the method, raw pellets are subjected to reduction in an electric furnace with the temperature above 1,300 DEG C so as to recover iron from copper smelting slag, wherein the raw pellets comprise the raw material ingredients of copper smelting slag, semi coke powder, calcium oxide and a binder, the mass ratio of ...

Recovery of copper from reverberatory furnace slag by ...

Mar 01, 2004· 1.. IntroductionGenerally, copper losses in reverberatory slags are either chemical or mechanical. Most of the copper loss is mechanical, mainly in the form of matte drops (Biswas and Davenport, 1980).As is known, the viscosity of the slag, the interfacial properties of the matte and the slag, the bath turbulence, and chemical compositions of the slag and matte are the main factors …

EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN THE …

Efficiency of Copper Recovery from a Slag in the Large Electric Furnace Figure 4: Calculated copper content in a slag versus time based on simple gravitational settling and gravitational coalescence model The gravitational coalescence model did not show significant removal of metallic copper.

Copper slag | Etsy

Antique Arts and Crafts Mission Style Slag Glass Shade Globe-Six Caramel Coloured Slag Glass Panels Shade - Hand Made Soldered Copper Frame. OnlyCoolStuff. From shop OnlyCoolStuff. 5 out of 5 stars. (47) 47 reviews. $98.00. Only 1 available and it's in 2 people's carts.

Improving Copper Recovery from Production Slags by ...

1.3 Characterisation of the slag 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. A typical slag composition including the main metal contents is given in Table 1.

Improving Beneficiation of Copper and Iron from Copper ...

2.1.1. Copper Slag The copper slag used in the experiments is a byproduct generated during the cleaning of electric furnace slag and refining 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. %

Copper Smelting Slag Cleaning in an Electric Furnace by ...

Oct 16, 2020· 10%· Copper slag cleaning using the flotation method and/or in an electric furnace is widely adopted in industrial production.[2,3,4,5] The flotation method has the advantages of low energy consumption and low copper content in the slag, but the waste liquid treatment after flotation has always been an issue.

THE INFLUENCE OF THE SILICATE SLAG COMPOSITION ON …

demands further processing of the slag. Processing of such, copper rich slag, is facilitated using flotation or electro-precipitation of remaining sulfides resulting with about 0.5% Cu in the remaining waste slag [2, 3]. Those copper losses in the waste slag are strongly influencing the economy of the copper extraction process. Also, it is a

Removal Effect of Basic Oxygen Furnace Slag Porous Asphalt ...

Therefore, steel slag has a chemical precipitation and acid neutralizing capacity. Studies have shown that steel slag can effectively remove chromium, copper, zinc, lead and other metals in wastewater [24,25,26,27]. In the cylindrical column test, the removal efficiency of steel slag for zinc and copper …

A BRIEF REVIEW ON BLAST-FURNACE SLAG AND COPPER …

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

Recovery of cobalt, nickel, and copper from slags, using ...

Nickel-copper furnace and converter slag -200 kVA. During 1995, a campaign was undertaken on the 200 kVA furnace with the intention of combining furnace slag with the converter slag previously treated. When treating furnace slag containing 0.22% Co on its own, the maximum cobalt recovery that could be obtained was 66%, with a cobalt value of 0 ...

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

Jan 17, 2020· 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 Korea every year [1-5]. Dumping or disposal of copper slag causes wastage of metal values and leads to environmental problems.

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 1:5, 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.

MECHANISM OF BUILDUP FORMATION IN AN ELECTRIC …

The copper slag cleaning in an electric furnace is based on slag reduction and settling of copper matte inclusions. Copper recovery depends on the slag temperature, degree of magnetite reduction and slag residence time. The formation of solid buildup on the furnace hearth leads to the decrease of furnace volume and slag residence time, affecting

Recovery of Copper from Reverberatory Copper Slag and ...

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.

THE MAIN REASONS FOR INCREASED COPPER LOSSES …

slag depletion and lead to significant irreversible losses of metal with slag. Therefore, ways to reduce the loss of copper with slag in the process of autogenous smelting are becoming increasingly important today. RESEARCH METHODOLOGY The samples of the slags were obtained from Vanyu-kov furnace in Balkhash Copper-Smelting Plant. They

Copper Smelting - Metallurgist & Mineral Processing Engineer

Jan 13, 2021· Slag formed in the smelting and converting reactions flows to the slag well. Slag cleaning occurs as a result of contact with lower grade matte in passing through zone 1, by the roast reaction of copper sulfide and copper oxides by the reduction of copper oxide by sulfur and ferrous sulfide, and by the reduction of magnetite.

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 …

A STUDY ON REDUCTION OF COPPER SLAG FROM THE FLASH FURNACE …

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

Induction Furnace Cleaning Of Copper Slag

Nov 01, 2019 Copper slag cleaning in an electric furnace to decrease the copper content of slag is one of the critical processes in the copper smelting process. As shown in Fig. 2,the reduction of slag by WCO was realized in this reactor, through which copper or copper sulphide was collected in a metal/matte phase, and the cleaned slag was ...

CN203513767U - Double-furnace double-side blowing slag ...

furnace copper blowing slag Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number CN201320644501.4U