furnace for roasting sulfides

Feb 24, 2019· An electric furnace is then typically used to heat the nickel ore until it melts. The melting point of nickel is 2,647° Fahrenheit (1,453° Celsius), so powerful furnaces must be used. ... With fluid bed roasting, sulfides are added to the liquid matte and the two are roasted together, eventually leaving just the nickel metal. The ...

201326In sulfide roasting, as in the case of pretreating reverberatory or...KEY WORDS: Leblanc process, Blackash furnace, Lime kiln, Cement, ... US .

a furnace at a temperature below the melting point of the metal. Roasting is a metallurgical process involving gas–solid ... sulfur from sulfide metal compounds, replacing the sulfides with oxides. (The sulfur removed goes off as sulfur dioxide gas.) Oxidizing roasts are

Oxidation roasting needs high roasting temperature and copper will suffer a loss by generating copper ferrite. The exhaust gas (SO2, Cl2, HCl) from the furnace in chlorination roasting process is a threat to the environment. In roasting, copper was mainly formed to soluble sulfate by water or dilute acid after roasting.

Roasting, or heating in air without fusion, transforms sulfide ores into oxides, the sulfur escaping as sulfur dioxide, a gas. Smelting ( ) is the process used in blast furnaces to reduce iron ores.

Roasting the carbonate and sulfide minerals in air converts them to oxides. The oxides, in turn, are smelted into the metal. Carbon monoxide was (and is) the reducing agent of choice for smelting. It is easily produced during the heating process, and as a gas comes into intimate contact with the ore.

of the furnace that channels the air (or oxygenenriched air) blast. Although these furnaces are in wide­ spread operation, they are hindered by significant drawbacks when processing sulfide concentrates/·3 including in­ complete roasting of dusts and dust carryover; inconsistent concentrations of oxygen and sulfurous gas in the fur­

The carbothermic reduction process is a direct reduction of sulfides. It allows a roasting in which higher concentrations of metals such as molybdenum are obtained by using both a reducing agent (in this case, carbon C) and a sulfur scavenger, such as CaO so as to prevent air toxic gases pollution such as SO.

Lead zinc metals are closely attached to each other and usually mined together from primary ore, for example, Galena (PbS) sphalerite (ZnS) are associated in native ore. As the main formation of lead sulfide, galena is widely spread all over the world. The other source of lead sulfide are boulangerite/ jamesonite/ bournonite.

Smelting of Nickel Sulfide Concentrates by Roasting and Electric Furnace Smelting, Refining of Sulfide Precipitates from Laterite Leaching Operations 232. Inquiry; Cobalt extraction Wikipedia. Nickel sulfide concentrates can be treated by either roasting or flash smelting to produce matte from which nickel and, nickel sulfide and, refining ...

TUTORIAL on ROASTING . We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads.

Roasting (metallurgy) topic. Roasting is a process of heating of sulphide ore to a high temperature in presence of air. It is a step of the processing of certain ores . ... Recovery from coppercobalt sulfide concentrates The ores are treated by a sulfatizing roast in a fluidized bed furnace to convert copper and cobalt sulfides into soluble ...

furnace for roasting sulfides Ore Roaster AMS, Remove Sulfides, Get the Gold in Business Industrial, Construction, Mining Equipment eBay. gold ore roasting furnace .

The roasting process consists of (1) dehy­ dration of alunite to remove chemically combined water, (2) sulfur reduction of alunite to reduce the Al2(S04)3 compo­ nent to Al203 and S02' and (3) oxidation of calcine to oxidize any sulfides pro­ duced during reduction (4).

Abstract Three series of experiments on oxidizing roasting of sulfide polymetallic concentrates in a laboratory fluidized bed furnace are performed to develop an economically efficient technology of processing the sulfide polymetallic ore concentrate of the Artem'evsk deposit (Kazakhstan).

We know that the method of sulphatizing roasting of sulfide material containing nonferrous metals with sulfurous gas production in the furnace of fluidized bed use oxygenair blowing in 2 stages. The first stage takes place during the roasting of initial material up to pyrrhotite with the shortage of .

Model ERF Our Ashing, Calcining and Roasting furnace range is available in a range of sizes. Our engineers work closely with our customers to select the right furnace for their needs.