roasting of copper

Sulphating roasting of coppercobaltSAIMM. Sulphating roasting is a unit operation in the production process for copper and cobalt from sulphidic ores. The simplified block diagram in Figure 1 shows that roasting is the first stage in the process flow sheet. The objective of roasting is a selective sulphation of copper and cobalt, while ferrous

roasting of copper Traduction française – Linguee

De très nombreux exemples de phrases traduites contenant "roasting of copper" – Dictionnaire françaisanglais et moteur de recherche de traductions françaises.

Mining Extraction Of Copper Roasting

· Extraction of copper from copper sulfide minerals by roasting and smelting, a tutorial suitable for chemistry students. Mining produce ores containing 2% or less of copper. Concentrating the ore by froth flotation can result in ores with up to 35% copper. A collector oil, such as an organic xanthate or thiophosphate, is added to the

Design of Copper Cobalt Sulphating Roasters for Katanga

The new roasting facility is part of the revitalization of an existing facility in the Katanga Province of the DRC being undertaken by KML. The sulphide ore fed to the roasting plant is treated under the "sulphating roast" conditions, followed by hydrometallurgical processing.

Sulphating roasting of coppercobalt concentrates J Güntner, J Hammerschmidt Most copper/cobalt ores from the Central African Copperbelt contain sulphidic compounds, which are not extractable in direct leaching. Roasting provides the possibility to transfer the

RECOVERY OF COPPER FROM SMELTING SLAG BY SULPHATION

Dissolution of copper and iron from the calcine was found to be very fast and was complete within the first few minutes. The water temperature in the leaching step was found to have no effect on extraction of copper and iron from the calcine in the range of 30 to 85 oC. Keywords: copper, slag, sulphation, roasting, acid baking, leaching

AN INVESTIGATION INTO THE SULPHATION ROASTING OF

copper concentrates directly in copper smelters is difficult due to environmental concerns. This thesis investigates a process using sulphation roasting as an alternative method for processing enargite concentrates; copper is recovered from the calcine by acid leaching, gold is extracted from the leach residue by conventional cyanidation and arsenic is either fixed in the calcine or

Roasting of copper sulphide

Roasting of copper sulphide

roasting copper ore

roasting of copper ore. Sulphating roasting of coppercobaltSAIMM. Sulphating roasting is a unit operation in the production process for copper and cobalt from sulphidic ores. The simplified block diagram in Figure 1 shows that roasting is the first stage in the process flow sheet.

AN INVESTIGATION INTO THE SULPHATION ROASTING OF

operating temperatures between 400550oC copper sulphate, copper arsenate, iron sulphate, hematite and iron arsenate form in the calcine, as well as some arsenic being volatilized as arsenic trioxide. At processing temperatures between 475575oC, greater than 80% of the arsenic was retained in the calcine as copper and iron arsenates. Copper

Roasting in Metallurgy

Metallurgical ContentChemistry of Oxidising RoastingIron Pyrites, FeS2Roasting Copper PyritesGalena, PbS – RoastingRoasting Arsenical Pyrites, FeAsSAntimonial Sulphide RoastingBlende, ZnS RoastingCarbonate of Lime, CaCO3Tellurides RoastingMetallic Gold, Silver RoastingRoasting to Eliminate Arsenic and AntimonyThe Use of Salt in RoastingLosses of Gold in RoastingCooling

diagram copper sulphate from copper ore Split P

Sulphating roasting of coppercobalt SAIMM. Jan 06 2013· copper extraction and purification chemguide helping you to Reaction of the ore and strips of high purity copper for the cathodes The diagram shows a very The copper II sulphate solution has to be continuously More detailed

COPPER EXTRACTION FROM COPPER SMELTER SLAG WITH

with slag results into sulphating the present compounds of copper, iron and zinc, which are easily soluble in water. Although in the industrial conditions the pyrite roasting oc curs at 700900oC, TG and DTA analyzes show that pyrite decomposition begins at 440oC and that the main exothermic peak occurs at 540oC [14,15]. In this work, the temperature of slag roasting with pyrite at 550oC was

Roasting Copper Ore

Copper metal can be prepared by roasting copper ore which can contain cuprite Cu 2 S and copperII sulfide Cu 2 Ss O 2 g 2 Cus SO 2 g CuSs O 2 g Cus SO 2 g Suppose an ore sample contains 110 impurity in addition to a mixture of CuS and Cu 2 S Heating 1000 g of the mixture produces 754 g of copper metal with a purity of 895.

RECOVERY OF COPPER FROM SMELTING SLAG BY SULPHATION

Keywords: copper, slag, sulphation, roasting, acid baking, leaching Introduction The environmental burden of waste disposal and decreasing metal ore grades make a strong case for implementation of alternative processes for metal recovery and metal recycling (Ochromowicz and Chmielewski, 2010; Schlesinger et al., 2011; Frandegard et al., 2013; Chmielewski, 2015). It has been estimated that

Sulphating roasting of coppercobalt concentrates

Introduction. Sulphating roasting is a unit operation in the production process for copper and cobalt from sulphidic ores. The simplified block diagram in Figure 1 shows that roasting is the first stage in the process flow sheet. The objective of roasting is a selective sulphation of copper and cobalt, while ferrous minerals and components are oxidized to haematite.

Sabinet | The roasting and leaching of

Many of the pyrite concentrates produced at South African gold and uranium mines contain economically significant amounts of nickel, copper, and cobalt, apart from gold and uranium. In some cases these concentrates are leached for uranium, followed by roasting and cyanidation of the calcine for the extraction of the gold. Even if their intrinsic value is excluded, the presence of appreciable

Recovery of cobalt, nickel and copper from

01/06/1986· Roasting of copper converter slag containing % copper, % nickel and % cobalt with ammonium sulphate open to atmosphere has been carried out in order to achieve sulphation of copper, nickel and cobalt followed by leaching of the metal values as soluble sulphates with water. The effect of parameters such as temperature (200–600°C), time (15–120 min), and amount of

Journal Papers Sulphating roasting of copper

The SAIMM is a professional institute with local and international links aimed at assisting members source information about technological developments in the mining, metallurgical and related sectors.

Laboratoryscale sulphation roasting testwork for copper

Laboratory scale sulphation roasting testwork was conducted to study the sulphation efficiency and recovery of cobalt and copper fr om synthetic and natural raw materials. The sulphation roasting efficiency was studied in terms of mass change, phase chemical compositions, and leaching characteristics. In agreement with literature, the results

Sulphating roasting of coppercobalt SAIMM

Sulphating roasting is a unit operation in the production process for copper and cobalt from sulphidic ores. The simplified block diagram in Figure 1 shows that roasting is the first stage in the process flow sheet. The objective of roasting is a selective sulphation of copper and cobalt, while ferrous minerals and components are oxidized to

High temperature roasting of sulphide concentrate and its

The most commonly used route in the hydrometallurgical extraction of zinc and copper is the roastleachelectrowin process. During the roasting process, the concentrate is subjected to either relatively low temperatures (partial roasting) or high temperatures (to achieve dead roasting) to produce a calcine that will be leacheable to extract zinc and copper. The resulting calcine contains zinc

Recovery of metal values from copper smelter slags by

copper to be recovered from a secondary smelting slag. Under optimum conditions, more than 95% of copper could be recovered by only a limited recovery of cobalt, nickel and zinc could be achieved by roasting the preroasted slag with pyrite at 550°C for 1 h with a pyrite/slag ratio. Around 2%

(PDF) Sulphation Roasting Studies on Synthetic CopperIron

s. prasad and b. d. pandey: sulphation roasting studies on copperiron The surface morphology of the pure cupric sulphide and the roasted products in 30 and 60 min was also examined by