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Advances in SA s ferroalloy smeltingMetix

 · furnaces for ferroalloys is the use of copper centre panels for the furnace roof to replace the traditional stainless steel sections. "The high electrode currents (around 150 000 amps) cause eddy currents to flow in the met­ al sections of the roof panels causing them

Treatment of Residues from the Copper Industry with an

 · Today s copper industry sees itself confronted with a variety of different residues and by-products. This situation can be explained by the decreasing content of copper in the primary ore concentrate and the multitude of further downstream processes and applications. This work aims at giving an overview of the different residues that derive from the primary as well as the secondary copper

Copper Smelting Furnace

 · Copper Smelting Furnace. The early development of the reverberatory furnace for smelting copper ores was the work of the Welsh smelters particularly those of Swansea. The first record of a reverberatory furnace is made by Jars who states that copper-smelting was effected in reverberatory furnaces at Middleton-Tyas in Yorkshire England.

Primary Copper Smelter and Refinery as a Recycling

 · Recycling 2017 2 19 3 of 11 recycled back to the smelting furnace. The offgases from converting and fire-refining often contain so little SO2 that acid production cannot be achieved. The offgas treatment thus includes two to

ENVIRONMENTAL LOAD OF THE COPPER AND NICKEL

 · sidual copper. The recovered copper is recycled back to the flash smelting furnace and also to PS-converter. The slag mill tailings are pumped to the tailing area nearby. The clarified water from the tailing pond is recirculated to be used as process water. The copper flash smelting process involves several by-product and dust removal stages as il-

Integrated process for recycling copper anode slime from

In recent years many studies have been conducted to comprehensively utilize copper smelting ash and other nonferrous metal smelting intermediates such as Electric-arc furnace dust (Walburga

Electric Furnace Processan overview ScienceDirect Topics

 · Among the modern lead-smelting technologies the Boliden Electric Furnace process can be considered as the only industrial operation based on the roast reaction to produce lead from galena in a liquid phase 3 5 .To the best of the authors knowledge this process was only applied industrially at the Rönnskär smelter in Sweden for smelting local high-grade concentrates and was

Copper Smelting Slag Cleaning in an Electric Furnace by

 · In view of the non-renewable reductant resources and carbon neutralization in the process of copper slag cleaning in an electric furnace this study proposed to use waste cooking oil as reductant to replace fossil energy. Combined with the phase equilibrium theory and experimental results the harm of excessive magnetite in the copper smelting slag to the cleaning process was clarified. The

Reduction of Magnetite from Copper Smelting Slag using

The copper smelting slag reduction experiments were carried out in a slag cleaning electric furnace as shown in Fig. 1. Six electrodes were settled in the upper zone of the electric furnace. As the reducing agents petro-diesel or biodiesel was sprayed into the copper smelting slag layer with nitrogen through the spray guns settled in two ends of

STATE OF THE DIRECT REDUCTION AND REDUCTION

 · categorized into processes using pit furnaces fluosolid reactors or rotation furnaces. The accelerated development of the direct reduction process has been conditioned by the following facts Rapid development of steelmaking by smelting in an electric furnace where apart from scrap iron direct reduced iron is increasingly used.

Flow dynamics study in bottom blown copper smelting

 · Figure 1 Fangyuan bottom blown copper smelting furnace and lance angle The field production since the start up has shown many advantages such as higher production rate autogenous smelting and low copper content in slag. All these features show great potential application for the next generation of copper smelting furnaces.

Computational Approaches for Studying Slag–Matte

 · shown in Figure 1 is an important phenomenon and determines the overall copper yield in the smelting unit process. The copper losses during settling process are duethe to the in addition mechanical entrainment of the copper matte droplets to the chemical dissolution of copper

aluminum smelting process flow diagram

The induction smelting and refining process is designed to produce aluminum alloys with increased strength and hardness by blending aluminum and hardening agents in an electric induction furnace The process steps include charging scrap melting adding and blending the hardening agent skimming pouring and casting into notched bars

Process Description and Abbreviated History of Anglo

 · For primary smelting two electric furnaces are used each with a rated capacity of 34MW. Furnace matte containing the bulk of the base metal sulphides and PGMs copper and cobalt. At the PMR the PGMs are separated and refined to produce pure Simplified Smelter Process Flow Schematic SUL E B BO N A G NE W E T C O N C E N T R A T E O

Primary Copper Smelter and Refinery as a Recycling

 · Recycling 2017 2 19 3 of 11 recycled back to the smelting furnace. The offgases from converting and fire-refining often contain so little SO2 that acid production cannot be achieved. The offgas treatment thus includes two to

Smelting Technologies for E-scrap in Japan

 · Copper matte Oxygen enriched air Smelting zone Settling zone slag matte Boiler Flue gas Treatment Oxygen plant Power plant steam Onahama Smelter is essentially copper smelter however Shredder dust is treated in a reverberatory furnace. Their dioxins emission is less 0.1ng TEQ/m3

Energy and materials flows in the copper industry

 · Most copper is extracted by smelting sulfide ores with concomitant production of sulfur dioxide. Clean air regulations will require smelters to reduce sulfur emissions necessitating smelting process modifications that could also save 20 x 10/sup 12/ Btu (10 x 10/sup 6/ Btu/ton of copper) in smelting

OF AN IDEAL SMELTER

 · Mitsubishi Process Outokumpu Flash Smelting and Flash Converting Process the Noranda Process and the Ausmelt Process. Only the Mitsubishi Process is a "truly con-tinuous" smelting and converting operation producing a constant flow of blister without tapping and is eco-nomically proven by long term commercial operations. Its low capital and

Primary Copper Smelter and Refinery as a Recycling

 · Copper can be recycled repeatedly without the loss of important properties due to extremely efficient electrolytic refining. The previous process stages such as converting and fire-refining also play an important role in the production of high-quality copper. The traditional smelting converting

Chapter 6 Copper Production Technology

 · 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. SOURCE Robert Raymond Out of tfre Fjery Furnace (University Park PA The Pennsylvania

Copper smelting processMitsubishi Materials Corporation

 · A copper smelting process is disclosed in which copper concentrate is smelted in a furnace to produce purified copper. Flue gas discharged from the furnace is treated to produce sulfuric acid. Furthermore waste liquid discharged during the production of sulfuric acid is treated to produce gypsum and the gypsum thus produced is recycled to the

Recent Improvements at the BCL Smelter

 · The Flash Smelting Furnace at BCL is one of the earlier generation four-burner furnaces of large physical dimensions (see Figure 2) designed to operate without oxygen enrichment of process air. The furnace relied on high process gas flow (170 000 Nm3/h) to

CopperGlencore

 · Our copper assets in Canada consist of the Horne Smelter and the Canadian Copper Refinery (CCR) an integrated business based in the Province of Quebec. Our Horne Smelter located in Rouyn-Noranda is a custom copper smelter processing concentrate and recycled material from Glencore s mining operations and third parties.

COPPER Copper productionTU Delft

 · Pyrometallurgical copper production Figure 3 Typical flow sheet for pyrometallurgical copper production from ore concentrates The large blast and reverberatory furnaces of the 1900s were derived from these principles. Later the electric furnace for matte smelting was developed. Newer processes are the

Copper processingRoasting smelting and converting

 · Copper processingCopper processingRoasting 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

Copper Smelting ProcessFurnaces Used By-Products

 · The copper ore become molten copper droplets that fall to the bottom of the furnace forming a molten copper layer with a slag floating on top of it. The molten copper is tapped and sent through the same processes as the reverb smelted copper except for the converter stage as it has been already converted to blister copper in the flash furnace.

Recycling TechnologyAurubis

 · The focus of secondary copper production in this case is on enriching and recovering precious metals and separating various by-metals that result from the copper production process. In accordance with the requirements of the specific raw materials these materials are processed in a modern electric furnace in various smelting campaigns.

Treatment of Residues from the Copper Industry with an

 · Today s copper industry sees itself confronted with a variety of different residues and by-products. This situation can be explained by the decreasing content of copper in the primary ore concentrate and the multitude of further downstream processes and applications. This work aims at giving an overview of the different residues that derive from the primary as well as the secondary copper

USAElectric furnace smelting of copper

USA US430247A USA USA US A US A US A US 430247 A US430247 A US 430247A US A US A US A US A US A US A Authority US United States Prior art keywords copper slag sulfide iron oxide Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

Evaluation of Copper Losses Using Flow Patterns in the Cl

 · INTRODUCTION The Mitsubishi Continuous Copper Smelting/Converting Process employs an electric furnace (CL- furnace) for settling the slag/matte mixture formed in the smelting furnace. Since the top-blowing in the S- furnace agitates the molten bath strongly matte droplets are dispersed over the slag phase when melts flow out of the S-furnace.

mitsubishi.pdfMITSUBISHI COPPER SMELTING PROCESS GROUP

Unformatted text preview MITSUBISHI COPPER SMELTING PROCESS GROUP 7 (PARALLEL) Moyo Sharon (NV) Maundura Thembelihle (NT) Mzondi Tendai (NY) Radebe Nomvuyo (NW) Ngwenya Senzelweyinkosi (NH) Introduction The Mitsubishi process is a continuous copper smelting and converting technology that uses three furnaces a smelting furnace an electric

electric-metals-smelting-furnaceChina Customs HS Code

Latest China HS Code tariff for electric-metals-smelting-furnaceTariff duty regulations restrictions landed cost calculator customs data for electric-metals-smelting-furnace in ETCN. China customs statistics trade data.

Pyrometallurgical recycling of electric arc furnace dust

 · Abstract. Electric arc furnace (EAF) dust is an important secondary resource which contains multiple metallic elements such as zinc lead iron chromium and cadmium. Recycling of EAF dust is not only favorable to increasing economic potential of the dust by recovering these valuable metals but also of benefit to solving disposal and