Botswana Slag Processing Copper Iron

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Executing a world

The Starter Project development plan now involves the fully mechanised underground mining of sulphide ores at Zone 5 at a rate of 3 65 million tonnes per annum using the upgraded Boseto processing facility for crushing milling flotation and production of a high-grade copper silver concentrate

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Improving Beneficiation of Copper and Iron from Copper

from the slag through mixing copper slag with calcium oxide as fluxes and carbon as a reducing agent then roasting the mixture at a temperature of about 1200–1300 C followed by magnetic separation to recover iron from the copper flotation slag [18–22] The smelting reduction process is a method where

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grinding iran slag

Slag Processing Plant Cost In Iran grinding machine for plaster processing plant - YouTube Jul 25 2016 SAM can provide the proper Slag Processing Plant Steel Slag Grinding Mill Slag Crushing Steel botswana slag processing copper iron Slag Processing Plant Cost In Iran copper slag processing plant VIET NAM equipment Botswana price cost of

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Chemical characteristics of iron and steel slag NIPPON

The shape and physical characteristics of iron and steel slag are similar to ordinary crushed stone and sand however due to differences such as the chemical components and cooling processes it is possible to provide different types of slag with a wide variety of unique properties

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12 6 Primary Lead Smelting

12 6 Primary Lead Smelting 12 6 1 General15 Lead is found naturally as a sulfide ore containing small amounts of copper iron zinc precious metals and other trace elements The lead in this ore typically after being concentrated at or near the mine (see Section 12 18) is processed into metallurgical lead at 4 facilities in the U S

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Economic and environmentally beneficial treatment of

ECONOMIC ENVIRONMENTALLY BENEFICIAL TREATMENT OF SLAGS IN DC ARC FURNACES 365 to the process itself Open-hearth slag from reverberatory furnaces is produced where molten iron ore and scrap are refined with limestone as a flux for a long period with fuel and air

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Copper processing

Iron and sulfur are converted to oxides and are removed in either the gas stream or the slag (the latter being recycled for the recovery of remaining values) leaving a " blister" copper containing between 98 5 and 99 5 percent copper and up to 0 8 percent oxygen The converter is rotated for skimming the slag and pouring the blister copper

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Waste Management and Treatment of Copper Slag BCL Selebi

The slag dumped just outside the mine poses to be a big issue for the environment as copper slag contains heavy metals associated with copper nickel cobalt iron and lead which can seep to underground water [5] Recovery of metals from dump/slag to profit the plant is considerable cost driver to the process as it will enhance reduction of slag disposal subsequently adding profit to the plant [6]

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Recycling and environmental issues of metallurgical slags

Blast Furnace (BF) slags BF slag is formed in the reduction process from iron ore coke limestone etc at temperature range from 1450 to 1550C thus contains lower iron oxides and is tapped off from time to time The chemical compositions of the slag depend on

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COPPER Copper production

slag refining slag or flue dusts) and copper-alloy scrap The construction of the furnace is basically related to that of the iron blast furnace but there are considerable differences in design especially in size and shape the copper blast furnace is lower and smaller and its cross section is rectangular

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Ilmenite smelting at Ticor SA

Slag and iron are tapped periodically from separate sets of tapholes located around the circumference of the furnace The slag tapholes are on a higher elevation than those for iron Slag is tapped into 20 t steel pots and cooled for several hours within these pots before the slag blocks are tipped out

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Direct

Along with actual evolution in the processing equipment the basic metallurgy has been under careful evaluation and development In spite of many favourable features of iron silicate slags they become problematic in the direct-to-blister copper smelting environments at oxygen partial pressures higher than in matte smelting

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CN105177300A

Provided is a method for processing water-quenched copper slag and recycling iron lead and zinc with a rotary kiln and is characterized in that the method comprises the steps 10-20% of coal and 10-20% of a flux are added in the water-quenched copper slag after flotation of copper in the rotary kiln the combustion-supporting wind volume ratio is adjusted to be 60-80% of the air volume needed for

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88 IRON AND STEEL SLAG

88 IRON AND STEEL SLAG (Data in million metric tons unless otherwise noted) Domestic Production and Use Iron and steel (ferrous) slags are coproducts of iron and steel manufacturing After cooling and processing ferrous slags are sold primarily to the construction industry

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Smelting

Smelting is a process of applying heat to ore in order to extract a base metal It is a form of extractive metallurgy It is used to extract many metals from their ores including silver iron copper and other base metals Smelting uses heat and a chemical reducing agent to decompose the ore

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Improving Copper Recovery from Production Slags by

Improving Copper Recovery from Production Slags by Advances Stirring Methods Proceedings of EMC 2011 3 treated in the existing copper extraction route or separately in a subsequent reactor the slag phase can be used as construction material for example 1 2 Conventional pyrometallurgical copper slag

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iron recovery from slag processing

iron recovery from slag processing Iron Recovery from Discarded Copper Slag in a RHF Direct separation process for iron recovery from copper slag Yang [10] obtained iron powder of 92 05% iron content with an iron recovery rate of 81 01% and Wang [11] obtained iron powder of 92 96% iron content with an iron recovery rate of 93 49%

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Iron Recovery from Discarded Copper Slag in a RHF Direct

By using DR followed by a magnetic separation process for iron recovery from copper slag Yang [10] obtained iron powder of 92 05% iron content with an iron recovery rate of 81 01% and Wang [11] obtained iron powder of 92 96% iron content with an iron recovery rate of 93 49%

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TENORM Copper Mining and Production Wastes

Smelting Then copper concentrates are mixed with silica (sand) and limestone and heated in a furnace to form two naturally-separating layers One layer is a waste containing iron and silica compounds and is discarded as slagslag Byproduct left after a desired metal is thermally separated from its raw ore

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ASARCO Smelting

This combustion releases a tremendous amount of heat that sustains the high temperature in the furnace The copper iron and silica form two layers at the bottom of the furnace The lighter top layer is a slag of mostly iron silica and other impurities The bottom layer of mostly copper and some iron is called matte The Acid Plant

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PS Converting Process

In the Outotec PS Converting Process the molten matte from the smelting furnace is converted into blister copper Converting is carried out in two stages The first stage is the slag blow where iron contained in the matte is slagged and removed before the copper blow phase

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Ferrous metallurgy

Workers then repeatedly beat and folded it to force out the molten slag This laborious time-consuming process produced wrought iron a malleable but fairly soft alloy Concurrent with the transition from bronze to iron was the discovery of carburization the process of adding carbon to wrought iron

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COBALT PROCESSING DEVELOPMENTS K G Fisher Bateman

Similarly because cobalt follows iron during smelting some of the copper smelter operations have generated large slag dumps with a high cobalt content – e g Nkana containing 0 65% cobalt 3 3 Nickel Sulphides Nickel sulphide deposits have historically been processed by flotation followed by

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「copper slag and iron slag treatment plant」

copper slag and iron slag treatment plant copper slag and iron slag treatment plant bobok iron slag processing mill plant supplier iron slag processing mill plant supplier slag recycling iron slag is a steel processing factory waste plant supplier Slag processing plant for slag iron or steel slag screening processing method of slag waste Slag of steel

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(PDF) Recovery of cobalt from slag in a DC arc furnace at

Copper and cobalt are two of the most valuable metals that can be recovered from copper converter slag In the reduction–vulcanization process copper is reduced before cobalt while FeS vulcanizes Cu2O into Cu2S and forms the matte phase The matte phase can dissolve the reduced metals as solvent

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Gold Smelting Refining Process

In general slag from smelting process arises from extraneous materials such as rust and oxides oxidation of elements in the charge (e g iron copper zinc) residues from fuels fluxes employed in the process (silica borax sodium nitrate sodium carbonate fluorspar) crucible erosion Then slag can vary in appearance and chemical composition

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Environmental Guidelines for Copper Smelting

The matte (copper-iron sulfide) from the furnace is charged to converters where the molten material is oxidized in the presence of air to remove the iron and sulfur impurities (as converter slag) and to form blister copper Blister copper is further refined as either fire-refined copper or anode copper (99 5% pure

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Laboratory Testing General Mineral Processing Engineering

I am currently using Borax Silica flour Soda ash and Potassium nitrate the sludge contains also copper I need a guideline on flux calculation to use in order to move the copper or any other Base metal to the slag I would like to know more about flux calculation for gold smeltin

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Copper extraction from reverberatory and flash furnace

The effect of the slag particle size on copper and iron dissolution is shown in Fig 3 For particle sizes 20 μm practically all of the sulphide phases are liberated and copper extraction reaches 80–90% for the Chuquicamata and Refimet slags respectively Iron dissolution is between 4–8% For sizes 40 μm the extraction of copper decreases slightly in the Refimet slag and

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Management of copper pyrometallurgical slags giving

The average composition of final copper slag corresponds to 30–40 % iron 35-40% silica less than 10 % of alumina and calcium oxide and copper content is less than 1% depending on the method used to clean the final slag of the pyrometallurgical process

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