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blast furnace bullion copper zinc

Efficient Removal of Arsenic and Antimony During Blast ...

20/10/2016  Using of copper-zinc concentrates in the blast furnace process for recycling lead-containing materials achieves: (1) high copper extraction to matte; (2) high lead extraction to lead bullion; and (3) high zinc extraction to slag, while at the same time producing a more efficient volatilization of As and Sb. Based on both laboratory and industrial data and thermodynamic

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Copper Blast Furnace Smelting-Copper- - Metalcess

Wide adaptability to raw material, from iron, copper, copper-nickel, zinc, lead and zinc-lead complex concentrate; 2. Application of rich-oxygen air blast offers high smelting temperature, enhances hearth capacity and generates high concentration SO 2 gas suitable for sulfuric acid-making;

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Zinc processing - The zinc-lead blast furnace Britannica

(The liquids consist of molten lead, containing recoverable copper and silver, and the gangue content of the charge, in the form of a molten oxide slag.) The . Zinc processing - Zinc processing - The zinc-lead blast furnace: Sintered zinc and lead concentrates, mixed with metallurgical coke, are charged into the top of a shaft furnace, into which preheated air is blown through nozzles, or ...

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Zinc and Lead Removal from Blast Furnace Sludge with a ...

04/08/2000  During the production of pig iron in a blast furnace, a Zn- and Pb-containing sludge is generated in the air pollution control system. This toxic waste can be landfilled after dewatering and pretreatment, which is very costly. The sludge particles contain large amounts of Fe and C that could be recycled in the furnace. However, the Zn content of the sludge is high, and the Zn input to the ...

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Practical Implications of the Physical Chemistry of Zinc ...

18/07/2013  The solubilities of zinc, lead, copper and sulphur in slag in the commercial operation of the zinc-lead blast furnace are considered in the light of the known thermodynamics of the relevant systems and the possible control of metal losses is assessed. Recent years have seen a gradual change from the use of high basicity slags to those with much lower lime-silica ratios where theory predicts a ...

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Lead and Zinc Smelting - IFC

The blast furnace slag, which contains zinc, iron, silica, and lime, is stored in piles and is partially recycled. Sulfur oxide emissions are generated in blast furnaces from small quanti-ties of residual lead sulfide and lead sulfates in the sinter feed. Rough lead bullion from the blast furnace usu-ally requires preliminary treatment in kettles be-fore undergoing refining operations. During ...

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Effect of copper, sulfur, arsenic and antimony on silver ...

the silver losses from the bullion. Key words: lead blast furnace; silver; lead impurities 1 Introduction The main source of lead is galena, PbS, which is concentrated by flotation, containing metallic impurities such as iron, copper, zinc, arsenic, antimony, tin and precious metals. The oxidation roasting of lead sulfide concentrates and the partial melting of these materials are used to ...

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Zinc Blast Furnace Smelting-Zinc- - Metalcess

Blast furnace has been used for zinc-lead complex concentrate smelting for a long time. Zinc smelting with blast furnace is also named as Imperial Smelting Process (short form as ISP). ISP furnace can smelting the lead-zinc mixing concentrate, residue from zinc concentrate leaching and Crude Zinc Oxide(C.Z.O.) from EAF dust etc. to produce lead bullion and crude zinc at the same time.

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Blast furnace - Wikipedia

A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. Blast refers to the combustion air being "forced" or supplied above atmospheric pressure.. In a blast furnace, fuel (), ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air (sometimes with ...

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Why Chinese steelmakers are using less scrap in their ...

10/07/2019  To achieve this, ironmakers can increase their usage of metallics in the blast furnace (BF) and benefits include, not only increased productivity but also a lower coke requirement, as the iron in metallics is already ‘reduced’. This Insight explores the fundamental impacts and limitations of charging metallics into the BF and why Chinese ironmakers have decreased the rate of scrap charging ...

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Efficient Removal of Arsenic and Antimony During Blast ...

20/10/2016  Using of copper-zinc concentrates in the blast furnace process for recycling lead-containing materials achieves: (1) high copper extraction to matte; (2) high lead extraction to lead bullion; and (3) high zinc extraction to slag, while at the same time producing a more efficient volatilization of As and Sb. Based on both laboratory and industrial data and thermodynamic

More

Practical Implications of the Physical Chemistry of Zinc ...

18/07/2013  The solubilities of zinc, lead, copper and sulphur in slag in the commercial operation of the zinc-lead blast furnace are considered in the light of the known thermodynamics of the relevant systems and the possible control of metal losses is assessed. Recent years have seen a gradual change from the use of high basicity slags to those with much lower lime-silica ratios where theory predicts a ...

More

Lead and Zinc Smelting - IFC

The blast furnace slag, which contains zinc, iron, silica, and lime, is stored in piles and is partially recycled. Sulfur oxide emissions are generated in blast furnaces from small quanti-ties of residual lead sulfide and lead sulfates in the sinter feed. Rough lead bullion from the blast furnace usu-ally requires preliminary treatment in kettles be-fore undergoing refining operations. During ...

More

Effect of copper, sulfur, arsenic and antimony on silver ...

the silver losses from the bullion. Key words: lead blast furnace; silver; lead impurities 1 Introduction The main source of lead is galena, PbS, which is concentrated by flotation, containing metallic impurities such as iron, copper, zinc, arsenic, antimony, tin and precious metals. The oxidation roasting of lead sulfide concentrates and the partial melting of these materials are used to ...

More

Blast furnace - Wikipedia

A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. Blast refers to the combustion air being "forced" or supplied above atmospheric pressure.. In a blast furnace, fuel (), ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air (sometimes with ...

More

Zinc and Lead Removal from Blast Furnace Sludge with a ...

04/08/2000  During the production of pig iron in a blast furnace, a Zn- and Pb-containing sludge is generated in the air pollution control system. This toxic waste can be landfilled after dewatering and pretreatment, which is very costly. The sludge particles contain large amounts of Fe and C that could be recycled in the furnace. However, the Zn content of the sludge is high, and the Zn input to the ...

More

Recovery of Precious Metals from Lead Bullion

The composition of the blast furnace products (lead bullion, matte, slag, and flue dust) is presented. The non-precious metals in the lead bullion are oxidized in an oxygen top-blown rotary converter. Design and functioning of the blast furnace and the converter are described. Some results and the most important changes of the converter process are reported compared to the normally used rever ...

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Useful Products from Rocks - Chemistry GCSE Revision

Extraction of Iron Ore from a Blast Furnace. A metal such as iron, which is less reactive than carbon, can be extracted from its ore using carbon . Reactions in the blast furnace: C + O 2 > CO 2; The coke burns, to form carbon dioxide and to produce heat; CO 2 + C > 2CO; The carbon dioxide reacts with more hot coke to produce carbon monoxide gas. 3CO + Fe 2 O 3 > 2Fe + 3CO 2; The carbon ...

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Lead Blast Furnace Smelting-Lead- - Metalcess

The furnace burden is reduced in the blast furnace and the lead bullion is discharged by batches. Two refining approaches, i.e. fully fire-refining and fire-refining + electro-refining can be selected based on lead bullion content. The final product usually is lead ingot. The smelting of lead zinc sulfide complex mine can also be proceeded in the enclosed blast furnace. Solution with detail ...

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Why Chinese steelmakers are using less scrap in their ...

10/07/2019  To achieve this, ironmakers can increase their usage of metallics in the blast furnace (BF) and benefits include, not only increased productivity but also a lower coke requirement, as the iron in metallics is already ‘reduced’. This Insight explores the fundamental impacts and limitations of charging metallics into the BF and why Chinese ironmakers have decreased the rate of scrap charging ...

More

Efficient Removal of Arsenic and Antimony During Blast ...

Using of copper-zinc concentrates in the blast furnace process for recycling lead-containing materials achieves: (1) high copper extraction to matte; (2) high lead extraction to lead bullion; and (3) high zinc extraction to slag, while at the same time producing a more efficient volatilization of As and Sb. Based on both laboratory and industrial data and thermodynamic considerations, the ...

More

Zinc smelting - Wikipedia

One of the advantages of this process is that it can co-produce lead bullion and copper dross. In 1990, it accounted for 12% of the world's zinc production. The process starts by charging solid sinter and heated coke into the top of the blast furnace. Preheated air at 190 to 1,050 °C (370 to 1,920 °F) is blown into the bottom of the furnace. Zinc vapour and sulfides leave through the top and ...

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Smelting Furnace - an overview ScienceDirect Topics

The zinc blast furnace or Imperial Smelting Furnace (ISF) was developed in the 1950s. The furnace is charged with zinc–lead sinter and coke, both preheated to 700–800°C. Sinter is made from concentrates, recycled materials, and fluxes, and sulfuric acid is produced from the sintering gas. Coke burns at the tuyeres level with air preheated to 950–1150°C. Crude lead bullion and slag are ...

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Recovery of Precious Metals from Lead Bullion

The composition of the blast furnace products (lead bullion, matte, slag, and flue dust) is presented. The non-precious metals in the lead bullion are oxidized in an oxygen top-blown rotary converter. Design and functioning of the blast furnace and the converter are described. Some results and the most important changes of the converter process are reported compared to the normally used rever ...

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Refined lead products Nyrstar

TSL and blast furnace operations. The top submerged lance (TSL) and blast furnace operations are the actual smelting part of the process and involve the high temperature reduction of sinter with metallurgical coke to produce a crude lead bullion and slag. Lead bullion contains small amounts of other metals including silver doré, gold and copper.

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Pyrometalurgical smelting of lead and copper ...

The present invention provides a method of smelting an oxidic charge containing lead and copper in a blast furnace, wherein molten lead bullion flowing to the furance bottom and containing at least 8% by weight of copper is diluted with metallic lead of lower copper content (1) in the furnace shaft, or (2) in the hearth at the bottom of the furnace, or (3) in a forehearth into which furnace ...

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Useful Products from Rocks - Chemistry GCSE Revision

Extraction of Iron Ore from a Blast Furnace. A metal such as iron, which is less reactive than carbon, can be extracted from its ore using carbon . Reactions in the blast furnace: C + O 2 > CO 2; The coke burns, to form carbon dioxide and to produce heat; CO 2 + C > 2CO; The carbon dioxide reacts with more hot coke to produce carbon monoxide gas. 3CO + Fe 2 O 3 > 2Fe + 3CO 2; The carbon ...

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Lead and Zinc - Energy.gov

lead, lead-zinc, zinc-copper, copper-zinc, zinc-silver, or zinc only. Zinc also occurs in combination with sulfur in a mineral called zinc blende or sphalerite (ZnS). The primary source of zinc is from sphalerite, which provides about 90 percent of zinc produced today. Other zinc-containing minerals include hemimorphite, hydrozincite, calamine, franklinite, smithsonite, willemite, and zincite ...

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Lead Bullion Fire-refining and Electrorefining Process-Lead-

Common lead smelting process usually produces lead bullion containing 2-4% impurities such as copper, arsenic, antimony, tin, bismuth, indium, silver and gold, etc. Those impurities are valuable metals but have negative effects on lead’s functional performance in terms of hardness, toughness and corrosion resistance. The process of lead refining is to improve lead purity and recover these ...

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