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Flash Converting Anode Impurities

Optimization Of Copper Converting And Anode Furnace

Consequently, elimination of impurities can be achieved in all slag-containing process steps, specifically flash smelting, converting, and fire refining. In this masters thesis, the distribution behavior of different elements was studied as a function of oxidation time in the copper blow stage of copper converting, and in the oxidation stage ...

Understanding Impurities In Copper Electrometallurgy

impurities in copper electrowinning and electrorefining. The first part evaluates the addition of Hydrostar, Cyquest N-900, DXG-F7, and Guartec EW to copper electrowinning electrolyte to affect MnO. 2. deposition on coated titanium anodes CTAs. The second part examines the effects of anode chemistry and thiourea addition on the

Process For Refining Highimpurity Copper To Anode Copper

Sep 20, 1996 Despite the energy and environmental advantages of single-stage smelting and converting techniques, the inability of these techniques to effectively remove arsenic, antimony, and bismuth presents a problem because the impurities pass through conventional blister copper refining stages and accumulate in the anode copper at levels which, as ...

Synthesizing Highquality Graphene From Spent Anode

Jan 05, 2021 A novel green and low-cost synthesis route converting spent graphite anode from lithium-ion batteries LIBs into graphene nanosheets was reported for the first time. The impurities in spent graphite were eliminated by calcining and acidic leaching.

Copper Processing Roasting Smelting And Converting

Copper processing - Copper processing - Roasting, smelting, and converting Once a concentrate has been produced containing copper and other metals of value such as gold and silver, the next step is to remove impurity elements. In older processes the concentrate, containing between 5 and 10 percent water, is first roasted in a cylindrical, refractory-lined furnace of either the hearth or ...

Method Of Converting Copper Containing

The present invention provides a method of converting copper containing material to blister copper comprising a providing copper containing material comprising copper sulfides and iron sulfides, whereby the copper containing material comprises at least 35 wt copper of the total weight of the copper containing material b reacting the copper containing material in a furnace with an ...

Ep2536859a1 Copper Anode Refining System And Method

A method and system for the copper anode refining is provided in which coherent jet technology is employed to heat the molten blister copper andor melt scrap copper charges using a melting flame, oxidize the sulfur in the molten blister copper, and reduce the oxygen in the molten blister copper using top-blown coherent jet gas streams from one or more multi-functional, coherent jet lance ...

The Study Of Copper Anodes In Acid And Cyanide Plating

Sep 16, 2015 The results indicate that silver is a harmful impurity. Anode performance in copper sulfate plating baths. Five 15-gallon air-agitated copper sulfate baths were operated for 26 days 19,340 A-hr to compare the oxygen-free cast anodes with rolled, reverse-electrolysis, conventional electrolytic, and conventional cast copper anodes ...

Sulfide Ore An Overview Sciencedirect Topics

Precious metal impurities in the anode are not oxidized at the anode potentials employed, but fall to the bottom of the cell as an anode slime which is occasionally harvested from the cells and sent for recovery of precious metals. ... Nickel matte is produced in the smelting stage. In the converting stage, flash converter or horizontal ...

Typical Wear Phenomena Observed On Refractories Out Of

Jan 01, 2019 Other technologies include Hoboken Converter, TBRC but also Flash Converting Furnace and bath smelting furnaces ISA, Ausmelt Davenport et al., 2002. For fire refining two types of furnaces are used the rotary furnace type is dominantly used in the primary production route while secondary smelters tend to use hearth refining furnaces ...

Hydrometallurgical Smelter Dust Treatment The Case For

Dec 11, 2019 Impurity metal removal and copper recovery can be done, for example, by leaching the flash smelting furnace boiler, converting furnace boiler, and ESP flue dust. Impure wash acid and acidic wastewater from the acid plant can be recycled to the hydrometallurgical plant where it is used for leaching smelter dust Figure 1.

2 Experimental

Industrial scale converting tests were carried out in one 120 t Peirce-Smith converter 3.7 m ID by 7.9 m in length at the Outokumpu Harjavalta Copper Smelter. The test campaign contained of ten converting tests . Three normal converting tests were performed using iron silicate slag to obtain reference results for impurity

Recent Trends In Outokumpu Practice For

2.1. Anode Composition Most of the impurities are introduced to the tankhouse in thc anodes. Because of the varicty of conccntrates and differcnt inLcrmediatc products or residues from other plants of the company the impurity level of Outokumpu anodes has greatly increased in recent years and the variations in anode analysis are large Table 1.

Andritz Maerz Gmbh Copper Division Metal Bulletin

Converter Anode Furnace Flash Casting Wheel Electro Refining Anode Cathode Copper Processing TBRC Anode Slime 7 Andritz MAERZs Scope of Supply Copper Scrap for Cooling. HighMedium Grade Copper Scrap 90 Cu ... metallic impurities, insulation and other foreign contamination,

Process For Refining Copper In Solid State Sciencedirect

Apr 01, 1999 Process for refining copper in solid state 411 In the currently used process, the impurities in the matte are partially volatilized and slagged during conversion. Given that in the process proposed here the matte is already free of impurities such as arsenic, antimony, bismuth, and others, this issue becomes irrelevant.

Primary Copper Smelter And Refinery As A Recycling

converting, fire-refining, anode casting, and electrorefining, also together six process stages or subsystems. The treatment of offgases from smelting includes dust collection and recycling, and acid production. Sometimes, the offgas treatment can include impurity removal from dust before dusts are recycled back to the smelting furnace.

Copper Smelting Process Furnaces Used Byproducts And

Apr 09, 2010 Modern copper smelters use processed copper ore fed into a flash furnace, typically fired by oxygen which produces blister copper, being further processed in a converter furnace. Molten copper is poured from here into rectangular moulds, the resulting ingots subjected to electrolysis producing a metal of 99.9 purity. Copper can be recycled indefinitely without the base metal being compromised ...

Copper Production Processes Total Materia Article

The flash techniques reduce the energy demand to about 20 million Btuton of produced cathode copper. The sulfur dioxide concentration in the off gases from flash furnaces is also higher, over 30, and less expensive to convert to sulfuric acid note the INCO process results in 80 sulfur dioxide in the off gas.

Asarco 187 Smelting

Smelting. At the Asarco copper smelter in Hayden, Arizona, the oxygen flash furnace is initially heated up with natural gas. It becomes so hot that the copper concentrate immediately ignites when it is blown into the furnace along with oxygen and a silica-bearing flux. The silica flux binds with the iron and other impurities and keeps them ...

Degradation Mechanisms And Use Of Refractory Linings In

Mar 01, 2014 At least up to the end of the 20th century, nearly all primary copper produced was treated in a Peirce-Smith convertor. 3 Stricter environmental regulations and higher energy costs, however, lead to the replacement of the Peirce-Smith converter by continuous converting processes, 30 such as the Outokumpu flash converter or the Noranda converter.

Indiumcadmium Recovery Metalcess

Recommended Process Rotary Reverberatory Furnace Smelting. The furnace can be designed with effective working volume minimal 0.15m3, suitable for the recovery of anode slime, PM-containing smelting slag, lead refining dross and all kinds of dust. It can also treat secondary material like scrap copper, WEEEPCBIC and etc.

Metallurgy Of Copperextraction Of Copperblister Copper

Blast of air converts Cu2S partly into Cu2O which reacts with remaining Cu2S to give molten copper. 2Cu2S 3O2 2Cu2O 2SO2. 2Cu2O Cu2S 6Cu SO2. The copper so obtained is called Blister copper because, as it solidifies, SO2 hidden in it escapes out producing blister on its surface.

Copper Production Sciencedirect

Jan 01, 2014 Copper is the most important nonferrous metal. It is a ductile metal with very high thermal and electrical conductivity and is thus used mainly as a conductor of electricity and, to a lesser extent, heat. Other uses include as a building material and as a constituent of various metal alloys such as bronze and brass.

Us5849061a Process For Refining Highimpurity Copper To

A process for refining high-impurity blister copper to anode quality copper is disclosed. In an oxidation step of a blister copper refining stage, soda ash fluxing removes antimony and arsenic while also removing sulfur and iron. In a deoxidation step of the blister copper refining stage, sulfur hexafluoride is injected at a controlled oxygen concentration to remove bismuth while reducing the ...

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