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direct to blister copper slag crushing

Ammonia leaching of slag from direct-to-blister copper ...

Abstract: 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 ...

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Ammonia leaching of slag from direct-to-blister

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 copper–lead–iron metallic alloy is then processed in a converter furnace.

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Ammonia leaching of slag from direct-to-blister

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 copper-lead-iron

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Direct-to-blister smelting of copper concentrates:

In the direct-to-blister (DB) Flash Smelting processes the concentrate is oxidised in one step into metallic, low-sulphur blister copper in a Flash Smelting Furnace (FSF), without separate...

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(PDF) Fluxing options in the direct-to-blister

Direct smelting of sulphidic copper concentrates to blister copper involves clear benefits in the smelting operation, in particular if modern flash smelting technologies are used. A simplified...

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Direct-to-blister smelting of copper

The freeze lining microstructure forming on water cooled steel surface in a high-silica, slag cleaning furnace slag of a direct-to-blister copper smelter is mostly Limestoney or amorphous.

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Ammonia leaching of slag from direct-to-blister

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 copper-lead-iron

More

Leaching of direct-to-blister copper flash

Direct-to-blister copper flash smelting slag contains up to 14% of copper and 2-4% of lead. Considering this fact, this material is subjected to the high-temperature reduction process.

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Leaching of direct-to-blister copper flash

Furnace slag from direct-to-blister smelting of copper concentrates contains up to 14% of copper and 2-4% of lead. Considering these above facts, slag is subjected to the high-temperature reduction process; after this, converting process is performed

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Direct-to-blister smelting of copper concentrates:

(2011). Direct-to-blister smelting of copper concentrates: the slag fluxing chemistry. Mineral Processing and Extractive Metallurgy: Vol. 120, Seetharaman - Seminar: Materials Processing Towards Properties, pp.

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(PDF) Fluxing options in the direct-to-blister

Solubility of oxygen in blister copper as a function of the smelting temperature, in equilibrium with a calcium ferrite slag containing 18% lime and the blister copper has 0.25% [S]

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Ammonia leaching of slag from direct-to-blister

PDF Smelting of copper concentrates in a flash furnace directly into a copper blister results in the production of slag with high copper and lead... Find, read and cite all the research you ...

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Blister Copper - an overview ScienceDirect Topics

Blister copper. The unrefined copper of about 98.5% purity produced from the converting step of copper smelting. Calcium ferrite slag. A slag based on CaO that contains FeO and Fe 2 O 3, which can absorb highly oxidized iron and thus is used in continuous copper converting under higher oxygen partial pressures than in conventional converting processes. ...

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Biorecovery of copper from converter slags: Slags ...

01-06-2009  The heaviest molten phase obtained is periodically tapped from the furnace and sent to a converter for its conversion to blister copper. 2. Slag is subjected to cooling/solidification, crushing, grinding and flotation to obtain a 30 to 60% Cu-concentrate (Rao and Nayak, 1992).

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Minimizing of copper losses to converter slag

01-11-2019  In converting stage, unmixed two different liquid phases occurs namely, a blister copper with high copper content (˜98.5%) and a slag phase including oxidised materials with high amount of copper (4–8%).Considering that total copper slag (formed in smelting and converting stages) generation in the world is more than 30 million tons , it is very important to produce the copper with minimum ...

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Direct-to-blister smelting of copper

The freeze lining microstructure forming on water cooled steel surface in a high-silica, slag cleaning furnace slag of a direct-to-blister copper smelter is mostly Limestoney or amorphous.

More

Leaching of direct-to-blister copper flash

Furnace slag from direct-to-blister smelting of copper concentrates contains up to 14% of copper and 2-4% of lead. Considering these above facts, slag is subjected to the high-temperature reduction process; after this, converting process is performed

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Fluxing Strategies for the Direct to Blister

Direct to blister smelting simulations were made with the MPE thermodynamic package. The simulation results predicted that the copper losses to slag would be 7.9, 20.4 and 7.0% of input copper for the un-fluxed, iron oxide flux and the lime and silica fluxing scenario respectively. The slag make per unit of copper was 1.4 for the un-fluxed ...

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Leaching of direct-to-blister copper flash smelting slag ...

KRZYSZTOF GARGULa, *, ANDŻELIKA BUKOWSKAa aAGH Akademia Górniczo-Hutnicza, Kraków Leaching of direct-to-blister copper flash smelting slag with sodium hydroxide solutions DOI: 10.15199/62.2017 ...

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Blister Copper - an overview ScienceDirect Topics

Blister copper. The unrefined copper of about 98.5% purity produced from the converting step of copper smelting. Calcium ferrite slag. A slag based on CaO that contains FeO and Fe 2 O 3, which can absorb highly oxidized iron and thus is used in continuous copper converting under higher oxygen partial pressures than in conventional converting processes. ...

More

Development of Ferrous-Calcium Silicate Slag for

To mitigate possible environmental pollutions, the direct to blister (DTB) route is an important process for copper making because a single, SO 2-concentrated stream can be produced. In this study, the ferrous-calcium silicate (FCS) slag system for the DTB process with a CaO content of

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Biorecovery of copper from converter slags: Slags ...

01-06-2009  The heaviest molten phase obtained is periodically tapped from the furnace and sent to a converter for its conversion to blister copper. 2. Slag is subjected to cooling/solidification, crushing, grinding and flotation to obtain a 30 to 60% Cu-concentrate (Rao and Nayak, 1992).

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Extractive Metallurgy of Copper

10.9. Cu-in-Slag Limitation of Direct-to-Copper Smelting 187 10.10. Direct-to-Copper Impurities 187 10.11. Summary 188 References 189 Suggested Reading 189 11. Copper Loss in Slag 191 11.1. Copper in Slags 191 11.2. Decreasing Copper in Slag I: Minimizing Slag Generation 193 11.3. Decreasing Copper in Slag II: Minimizing Copper Concentration in ...

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Ferric leaching of copper slag flotation tailings ...

01-01-2009  Copper can be recovered from the slags by froth flotation after cooling, crushing, and grinding. The obtained Cu-concentrate is sent to the pyrometallurgical process. If grinding is not fine enough for efficient flotation, copper is lost in tailings. In this paper, the ferric leaching of slag flotation tailings is studied.

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Comprehensive review on metallurgical recycling

Copper slag is mainly generated in the stages of matte smelting and subsequent copper matte blowing; therefore the chemical composition of copper slag samples varies significantly (), affected by the type of smelting process, smelted ores, fluxes, and additives added during the pyrometallurgical process (Lottermoser, 2005; Ettler and Johan, 2014).

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Direct-to-blister smelting of copper concentrates:

Mentioning: 10 - Direct-to-blister smelting of copper concentrates: the slag fluxing chemistry - P Taskinen

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Hydrometallurgical recovery of lead from direct

01-09-2017  Furnace slag from direct-to-blister smelting of copper concentrates contains 12–15% of copper and 2.5–4% of lead. In this form it cannot be deemed as waste material, and thus it is subjected to a high-temperature process of slag decopperization; after this, converting process is performed on the Cu–Pb–Fe alloy being the product of decopperization process in electric furnace.

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6-Studies on Continuous Converting and Direct to

Blister copper: 0.6 – 0.8 % S SO2 content in off-gas : 30~35% Slag copper content: 10 – 12 wt% Iron silicate slags: Fe/SiO2 of 1.1 – 1.2 (Yan Jie, 2016) Fangyuan 2-step Copper Making Process. The 2-step copper making process was commissioned in October 2015 in

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Development of Ferrous-Calcium Silicate Slag for

To mitigate possible environmental pollutions, the direct to blister (DTB) route is an important process for copper making because a single, SO 2-concentrated stream can be produced. In this study, the ferrous-calcium silicate (FCS) slag system for the DTB process with a CaO content of

More

Hydrometallurgical recovery of lead from direct-to

Furnace slag from direct-to-blister smelting of copper concentrates contains 12–15% of copper and 2.5–4% of lead. In this form it cannot be deemed as waste material, and thus it is subjected to a high-temperature process of slag decopperization;

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Phase Equilibrium Studies of Iron Silicate Slag

Direct to blister (DTB) accounts for a significant process for copper making due to its simplified process chain and the production of a single stable SO2-concentrated off-gas. In this study, the phase equilibria of iron silicate slags in the Cu-Fe-Si-S-O system at controlled atmosphere were, for the first time, experimentally investigated in the spinel primary phase field.

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Copper losses to slags obtained from the El Teniente process

transform copper sulphide concentrate into blister copper, as follows: • Wet concentrate drying down to 0.2 wt.% moisture • Smelting bone dried concentrate and partial converting to white metal • White metal converting to blister copper • Slag cleaning directed to recover copper from the slag produced during the smelting and partial ...

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Making Slag - an overview ScienceDirect Topics

05-04-2010  In the second stage, the white metal is oxidized to blister copper which contains about 0.5% sulfur and 0.2% oxygen. In the converter slag, the copper content is higher, may reach 2–15%. The copper exists in forms of dissolved Cu 2 S, entrained droplets of matte, white metal, Cu 2 O, and blister copper.

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copper slag application - greenrevolution.org

to white metal • White metal converting to blister copper • Slag cleaning directed to recover copper from the slag produced during the smelting and partial converting steps. ... Copper Slag Denver Co Direct Download. Application Of Copper Slag In Geomagnetic Archaeointensity Research. ... copper slag crushing units.

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Primary Copper Smelter and Refinery as a Recycling Plant—A ...

blister copper, conversion of matte to blister copper, and refining to copper. Smelting, converting, ... The treatment of slag includes cooling, crushing, grinding, and flotation. Most of the slags produced in different smelters have such a high copper concentration that they have to be

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