sulphatizing roasting of copper ores

Activated Sulfating Roasting of the Chalcopyrite

roasting temperature that allows one to obtain a pref erentially sulfate cinder suitable for leaching and the selective recovery of copper as well as of iron was...

Chapter 6 Copper Production Technology

Chapter 6 Copper Production Technology The last boomin technological innovation for the copper industry occurred in the first two dec- tation concentration and the reverberatory smelter were adapted to porphyry copper or With the exception of leaching-solvent extrac-tion-electrowinning the basic methods of cop-per production...

sulphating roasting of copper

Sulphating roasting of copper-cobalt concentrates J G√ľntner J Hammerschmidt Most copper/cobalt ores from the Central African Copperbelt contain sulphidic Get Price Journal of Hazardous Materials v131 1-3...

RECOVERY OF COBALT FROM MANGANESE ORE BY SULPHATIZING

The kinetics of sulphatizing roasting of cobalt sulfide using sulphuric acid as acidifier was studied The influence of temperature andparticle size on extraction of cobalt was investigated The results show that the sulphatizing roasting rate is controlled by diffusion through solid layers The apparent activation energy is determined to be...

Metallurgical Calculations Roasting and Smelting

Lehigh University Lehigh Preserve Early Publications of the Lehigh Faculty 1907 Metallurgical Calculations Roasting and Smelting Copper Ores...

nickel concentrate processing 36076

The results of two-stage roasting of pyrite concentrate with air blowing and We know that the method of sulphatizing roasting of sulfide material Roasting of copper and nickel ore and ore concentrat Gulin supply Mining and...

Recovery of Copper from Copper Sulfide

Recovery of Copper from Copper Sulfide Concentrate by Sulfation Roasting Yaming Zhao1 Yanan Hou1 it is important that how much sulfur removed and remained in the roasted ore During sulfate roasting copper extraction is mainly affected by roasting temperature roasting time and Na 2SO 3...

Method of Precipitating Copper

During the last few years we have been doing considerable experimenting on methods of precipitating copper The first patent on precipitating from sulphate solutions by heating with SO2 under pressure was taken out by us U S Pat 723 949 The general method which we adapted for the tests was sulphatizing roasting leaching and...

The Revovery of Copper and Cobalt from Oxidized

First the oxidized copper ore was roasted followed by the mixture of converter slag and oxidized copper ore Since the levels of copper and cobalt were low the sulfurization process was carried out under autoclave conditions The samples obtained were roasted The yields of copper and cobalt passed...

Pretreatment

Can be used to remove impurities such as arsenic As antimony Sb mercury Hg etc as their volatile oxides during roasting Sulphatizing roast Converts sulphides into sulphat For example In practice heap leaching is the most common method for bioleaching and is mainly used for secondary copper or Stirred tank leaching is...

copper processing Definition History Facts

Copper processing the extraction of copper from its ores and the preparation of copper metal or chemical compounds for use in various products In its pure form or as an alloy copper Cu is one of the most important metals in society The pure metal has a...

Roasting metallurgy

The sulfide ores of copper are heated in the reverberatory furnace If ore contain iron it is mixed with silica before heating Iron oxide slags as iron silicate and copper is produced in the form of copper matte which produce Cu 2 S and FeS Magnetic roasting...

General Principles and process of Isolation of

General Principles and process of Isolation of elements Metallurgy 1 The most abundant metal on the surface of the earth is Smelting 2 Calcination 3 Self reduction 4 Sulphatizing roasting 33 Column-I Column-II Metals Ores A Tin 1 Calamine B Zinc 2 Cassiterite C Titanium 3 Cerrussite Which of the following factors is of no...

Differential thermal analysis of the pelleted rough copper

Download Citation on ResearchGate Differential thermal analysis of the pelleted rough copper sulphide concentrate of off-balance ore The...

Roasting metallurgy Britannica

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

Tutorial on roasting furnaces sdkahar

Tutorial on roasting furnaces sdkahar 1 TUTORIAL on ROASTING FURNACES Prepared By Mr Sunil D Kahar Assistant Professor Metallurgical Materials Engineering Department Faculty of Technology Engineering The M S University of Baroda Vadodara...

Chemistry Tutorial Copper Smelting

Roasting reduces impurities in the copper ore and produces calcine a mixture of products Concentrated enriched ore is heated to between 500 o C and 700 o C in air Some impurities in the ore such as arsenic and antimony are oxidized...

Method of processing of cobalt

The invention relates to metallurgy non-ferrous metal ores containing manganese and can be used when processing goods Co Ni Cu and Mn with high retrieval The known method US patented selective extraction of Nickel cobalt copper and manganese by sulfuric acid leaching them of oceanic ferromanganese nodules and lateritic or...

Copper mining Chemical reactions

At this stage of the process the chemical reactions begin They convert the copper minerals into copper metal We can illustrate the types of process using the example of chalcopyrite - CuFeS 2From the formula it is clear that iron and sulphur have to be removed in order to produce copper...

Chloridizing Roasting Process for a Complex Sulfide

This paper describes a chloridizing roasting process applied to two types of nickel and copper-bearing sulfide concentrat One was copper rich and the other nickel rich The paper gives a...

The Recovery of Copper in Sulphide Ores by Roasting

Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions but a very high extraction can be obtained if the copper ore is in the oxidized condition The problem is to convert the sulphide into the oxide form This can be done by giving the sulphide ore an oxidizing-sulphatizing roast Copper sulphate is soluble in water so...

Leaching of a Roasted Copper Sulfide Ore2 Titration

ferric oxide Fe2O3 This can be achieved by subjecting the sulfide ore into an oxidizing-sulphatizing roast Sulfur determination was carried out to examine the percent sulfur of the sulfide ore using a representative sample from the bulk Copper sulphate is soluble in water thus iron can be precipitated Leaching of a Roasted Copper...

US7416712B2

Especially when iron-containing copper and nickel ores are used only incomplete leaching has been possible to date Method in connection with roasting especially with sulphatizing or chloridizing roasting US3772423A en 1972-06-19 1973-11-13 Universal Oil Prod Co...

How To Calculate Mills And Crushers Power Requirement

How To Calculate Mills And Crushers Power Requirement how to calculate mills and crushers power requirement how to calculate mills and crushers power requirement and Sell With CDROM Power Points...

Copper Mining and Processing Processing of Copper Ores

Copper Mining and Processing Processing of Copper Ores Copper processing is a complicated process that begins with mining of the ore less than 1 copper and ends with sheets of 9999 pure copper called cathodes which will ultimately be made into products for everyday use...

OUTOTEC ROASTING SOLUTIONS

Outotec roasting solutions are based on our decades of experience in developing processing technologies for concentrates and or Safe easy and cost-efficient to operate they offer We offer roasting solutions for zinc copper pyrite gold and precious metals concentrates as well as whole...

Pyrometallurgical Processing Technologies for

Pyrometallurgical Processing Technologies for Treating High Arsenic Copper Concentrates Patrick R Taylor copper ores and concentrat lime roasting of refractory precious metal or...

Leaching flue dust

results were disoouraging sulphatizing roasting was again tried this time mixing alternately ores of mar 173 casiteohaloopyrite and pyrite with the flue dust...

Sulphatizing roasting The sulphatizing roasting of copper

Download Citation on ResearchGate Sulphatizing roasting The sulphatizing roasting of copper sulphide or Thesis Metallurgical engineer --Stanford University...

123 Primary Copper Smelting

123 Primary Copper Smelting 1231 General1 Copper ore is produced in 13 stat In 1989 Arizona produced 60 percent of the total Ore concentration is roasted to reduce impurities including sulfur antimony arsenic and lead The roasted product calcine serves as a dried and heated charge for the smelting furnace Smelting of roasted...

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