Copper Slag Furnace Slag Copper

Copper Slag an overview ScienceDirect Topics

Copper slag granulated by water quenching produces vitreous amorphous solid particles that show higher chemical stability than those air-cooled solidified (Pavéz, Rojas, Palacios, & Nazer, 2004). The chemical composition of copper slag varies with the type of furnace.

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Minimization of Copper Losses in Copper Smelting Slag

21.09.2012· A significant portion of the copper loss in discard slag from such furnaces is present as dissolved copper in the form of Cu 2 O, especially toward the higher oxygen potential range of operating furnaces (higher matte grades, Fe/SiO 2 > 1.5), or in the form of soluble copper oxysulfides when the slag is equilibrated with mattes of lower grade (mattes <65% Cu or >12% Fe). The balance of the copper loss in commercial discard slag is as mechanically entrained copper

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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...

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Pyrometallurgical recovery of copper from slag material

Reverberatory copper slag containing 0.35% copper was treated with sulfidizing agent in a rotary furnace rotating at 5 rpm. After two hours, the molten mass was discharged from the furnace, and the matte and slag phases separated. The slag phase was found to contain 0.1% copper when CaS in an amount of 10% by weight of the slag was used as the sulfidizing agent, and 0.11% copper when FeS

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(PDF) Relationship between copper content of slag and

Eti Copper Inc. (EBI) flash furnace smelter slag containing 0.88 wt.%Cu and matte with the addition each of CaO, B2O3 and colemanite up to 10 wt.% of the total charge were melted in a silica

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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.

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What is a Copper Slag? (with pictures) wiseGEEK

19.12.2020· Using blasting or high-pressure spraying techniques, companies can use copper slag to clean large smelting furnaces or equipment. Slag blasting is also used to remove rust, paint, and other materials from the surface of metal or stone. This helps to prep the surface for painting, or simply to remove unwanted finishes or residue.

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ISASMELT TM SLAG CHEMISTRY AND COPPER LOSSES IN THE

The furnace is fed continuously with copper concentrates and fluxes; oxygen-enriched air is injected into the bath through the lance, creating very intense bath agitation and a rapid reaction rate. The bath principally consists of molten iron-silicate slag and molten copper matte.

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THE SUBMERGED ARC FURNACE (SAF) STATE OF ART IN METAL

mostly as ions (e.g. for copper slag as Cu + ions) or as entrained droplets of matte. The dissolved metals is associated eithe r with O. X- ions (i.e. Cu. 2. O) or with S. X-ions (e.g. Cu. 2. S). Electric furnace slag cleaning uses coke as a reductant. So, coke bed is floating on the slag surface and reacting with oxides. At the initial moment of the contact of carbon

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THE EFFECT OE SLAG COMPOSITION ON COPPER LOSSES TO

3*4*2 Furnace assembly 3*8 Procedure 3,6 Analytical techniques 3*6*1 vi Preparation of samples for analysis 3*6*2 Analysis of alloy 3.6.3 Analysis of slag . TABLE OF CONTENTS (cont.) PAGE 4, RESULTS SB 4.1 Equilibration time,55 4*2 Copper solubility in iron silicate elag 5? 4,3 Copper solubility in iron silicate slog with 59 fluxing additions 5* SOLUBILITY OF COPPER IN SILICA

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Copper Slag an overview ScienceDirect Topics

Copper slag granulated by water quenching produces vitreous amorphous solid particles that show higher chemical stability than those air-cooled solidified (Pavéz, Rojas, Palacios, & Nazer, 2004). The chemical composition of copper slag varies with the type of furnace.

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Pyrometallurgical recovery of copper from slag material

Reverberatory copper slag containing 0.35% copper was treated with sulfidizing agent in a rotary furnace rotating at 5 rpm. After two hours, the molten mass was discharged from the furnace, and the matte and slag phases separated. The slag phase was found to contain 0.1% copper when CaS in an amount of 10% by weight of the slag was used as the sulfidizing agent, and 0.11% copper when FeS

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Utilisation of copper slag for cement manufacture

Copper slag admixed mortar and concrete showed a lesser amount of leaching than solution due to the complex formation with cement mortar. Hence, copper slag can be used (2.5%) in raw mix for OPC and (35%) in manufacture of PSC. The material does not have any adverse impact on the performance of OPC and PSC. The users of copper slag in OPC / PSC can be assured of the non-leachability of

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COMPERING THE EFECT OF USING THE COPPER BLAST FURNACE SLAG

Keywords: copper blast furnace slag, compressive and tensile strength of concrete 1. INTRODUCTION Concrete is a construction material composed of cement as well as sand and aggregate. Today the usage of pozzolans either natural or artificial has been increased. One of these artificial pozzolans is the slag of metal melt furnace such as iron, copper, etc. several researches on iron slag have

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Recovery of copper from reverberatory furnace slag by

01.03.2004· For separating copper from reverberatory slag with a copper content of about 1%, flotation was used, and in one stage flotation a recovery of 72% to a concentrate containing 12.6% copper was achieved. Application of R407 at a concentration of 30 g/t gave the highest separation efficiency. MIBC at a concentration of 35 g/t produced better results than its combination with A65. The optimum condition

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MECHANISM OF BUILDUP FORMATION IN AN ELECTRIC FURNACE

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 copper recovery and furnace capacity.

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Archaeologists Unearth 6,500-Year-Old Copper-Smelting

17.12.2020· “The surprising finds include a small workshop for smelting copper with shards of a furnace — a small installation made of tin in which copper ore was smelted — as well as a lot of copper slag.”...

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Copper Slag TECHNOBLAST WORKSHOPS

Copper slag is an abrasive blasting grit made of granulated slag from metal smelting process ( also call iron silicate). Copper Slag abrasive is suitable for blast cleaning of steel and stone/concrete surfaces, removal of mill scale, rust, old paint, dirt etc. Suitable for SA-3, SA-21/2 and SA-2. Copper Slag blasting media/grit- is manufactured of the granulated slag of copper refineries, and

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Reductive-sulfurizing smelting treatment of smelter slag

then taken out from the furnace, broken to separate the copper-cobalt matte and cleaned slag for samples. The samples were finely ground after completing the measurements. The chemical compositions of copper- cobalt matte and cleaned slag were analyzed by ICP-AES(IRIS Intrepid II XSP). The metals recoveries were calculated based on the mass balance principle. In addition, the cleaned slag

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THE EFFECT OE SLAG COMPOSITION ON COPPER LOSSES TO

3*4*2 Furnace assembly 3*8 Procedure 3,6 Analytical techniques 3*6*1 vi Preparation of samples for analysis 3*6*2 Analysis of alloy 3.6.3 Analysis of slag . TABLE OF CONTENTS (cont.) PAGE 4, RESULTS SB 4.1 Equilibration time,55 4*2 Copper solubility in iron silicate elag 5? 4,3 Copper solubility in iron silicate slog with 59 fluxing additions 5* SOLUBILITY OF COPPER IN SILICA

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