Crushing & Grinding Machines

A reviewofcopperhydrometallurgy

=2 Cu NH3 4S04 2 NH4 2S04 Fe203 and ZnS 2 176 2 4 NH3=Zn NH3 4S04 It will be noted that all the sulphide sulphur is converted to sulphate and where there is a market forammonium sulphate the process hasadefinite attraction In South Africa where ammonia used for fertilizer purposes issold at a lower price than ammonia used for...

LEAD ZINC EXTRACTION PROCESSES

Zn-Cu-Ni-Pb Slag Copper sulphide Separated ZnS Lead Ore 1 Concertration Sintering Reduction Smelting 1 Ca Mg ZnO PbO CdO for Zn- Cd recovery Refined Lead 1 1 Debismuthizing VaccClq Desitvering Lead Bullion Conventional Blast Furnace Process The conventional pyrometallurgical primary lead production process consists of four steps...

Special Issue Process Modeling in Pyrometallurgical

The present study proposes a complete 3D integrated model to simulate the top-blown supersonic coherent jet decarburization in the electric arc furnace EAF refining process The 3D integrated model avoids the direct simulation of the supersonic coherent jet interacting with the liquid steel bath and provides a feasible way to simulate the...

US4036636A

Process for recovering nickel and nickel-copper from molten smelter-type slags or other highly oxidized sources of nickel and nickel-copper containing 7 to 30 percent by weight of magnetite Fe 3 O 4 The magnetite in the slag is reduced with carbonaceous materials or other solid reductants such as sulfides metals or carbid While the slag is mixed with a fluid cooled metal-bladed...

PDF Review of Pyrometallurgical Treatment of Electronic

Hydrometallurgical and pyrometallurgical process technologies for the concentration and recovery of precious-metals values in scrap are reviewed and some downstream processing options are outlined...

GUJARAT TECHNOLOGICAL UNIVERSITY

Q2 a Explain process flow sheet of Cu extraction with all the important parameters involved in the process 07 b Discuss Bayer process for alumina production and give the flow sheet 07 OR b Explain Mitsubishi process for Copper production in brief 07 Q3 a Name the important ores of tin With the help of a flow sheet explain briefly the...

Leaching of Copper Sulphides

conventional pyrometallurgical processing Dreisinger 2006 In general the selection of a hydrometallurgical process for use in a commercial application will require that many of the following characteristics are true of the process selected The use of proven unit processes and equipment...

Chapter 6 Copper Production Technology

Pyrometallurgical Sulfide ores 05-2 Cu I Comminution 1 II I FIotation I Concent rates 20-30 Cu 1 6-1-FIow Sheets for Copper Production Hydrometalluigical Oxide and sulfide ores 03-20 Cu Leaching Pregnant Ieachate 20-50 Cu Precipitation Solvent extract ion I Smelting I I Cement copper 1 85-90 Cu Matte 50-75 Cu II I...

Pyrometallurgical Processes SpringerLink

Abstract In the journey from raw materials in ores to metals as finished products roasting represents a significant milestone Specifically roasting covers operations between ore dressing or concentration on the one hand and actual metal recovery and finishing on the other...

Copper losses to slags obtained from the El Teniente process

from El Teniente pyrometallurgical processes and some slag industrial data El Teniente pyrometallurgical process Simplified flowsheet of the current pyrometallurgical process at Caletones Smelter with production capacity of 383 000 tons of copper annually is presented in Figure 1 Basically the current process involves four main stages to...

XPS Expert Process Solutions LinkedIn

XPS Expert Process Solutions 1 854 followers on LinkedIn Real-world Metallurgical Technology for the Global Minerals Industry XPS Expert Process Solutions provides solutions for the global mining industry Our services cover areas such as orebody characterisation metallurgical plant support improving operational efficiency and greenfield / brownfield project development...

PERUMIN 31 Pyrometallurgical Processing Technologies for

Dec 01 2014 0183 32 Process Options Both pyrometallurgical and hydrometallurgical processes have been evaluated for the extraction of copper from enargite concentrat Acid Bake Process Possible Flow Sheet 37 Philippines treated about 180 tpd of enargite concentrates containing 11 As 31 Cu 15 Fe 34 S and produced calcine containing 03 As 43 Cu...

Copper extraction

Copper extraction refers to the methods used to obtain copper from its orThe conversion of copper consists of a series of physical and electrochemical process Methods have evolved and vary with country depending on the ore source local environmental regulations and other factors As in all mining operations the ore must usually be beneficiated concentrated...

Magnesium current and alternative production routes

Figure 2 Flowsheet of Electrolytic Routes Hydrous Dow Chemical Process and Anhydrous IG Farben Norsk Hydro VAMI Kipouros and Sadoway 1987 Electrolysis of magnesium chloride dissolved in molten chloride salts occurs at 700 to 800 o C inside brick-lined vessels For the anhydrous process the electrolysis of magnesium chloride...

PDF Commercial Processes for the Extraction of Platinum

Pyrometallurgical process including crushing batching granulation smelting separation has become a traditional method to recover PGMs from spent catalyst 41 58...

Hydrometallurgical processing of Platreef flotation

May 01 2011 0183 32 The objective of this testwork programme was to consider the potential for hydrometallurgical processing of Platreef flotation concentrate containing 15 g/t Pt 25 g/t Pd and 05 g/t Au 15 Ni and 12 Cu Some twenty-two process flowsheet variants were evaluated in a testwork programme examining several conventional and proprietary unit...

Pyrometallurgical brass production

A pyrometallurgical process for producing brass from a material containing a significant quantity of oxidized zinc said process comprising the steps of 1 adding carbon to said material and a sufficient amount of copper to provide a mixture having an overall Zn/Cu weight ratio of a...

RECOVERY OF CRITICAL MATERIALS FROM PYROMETALLLURGICAL

The pyrometallurgical wastes from this process contain Critical Materials This project addresses that aspect Based on the studies a flowsheet for Zn Cu and Ni isolation is proposed which...

Distribution of Precious Metals During the Reducing

50 Noble Metals 22 Distribution ratio of precious metals between melte d phases The distribution ratio of a precious metal X between two condensed immiscible phases A 1 and A 2 in a thermodynamic system L X A 1 /A 2 is defined as follows LX A 1/A 2 = mass X A 1 /...

Hydrometallurgical processing of Platreef flotation

The process embodies separation of the value metals PGM and base metals into separate chloride and sulfate solution streams respectively and impurity elements Fe Al and gangue into a tailings product Key elemental deportments from the un-optimized process were Ni 96 Co 94 Cu 94 Pt 96 Pd 94 and Au 87...

The refining of lead by the Betts process

pyrometallurgical route or a combined pyrometallur- gical/electrometaUurgical route Comparisons between these two routes show that the pyrometallurgical route is usually used when ores with low bismuth content are treated 7 8 The generalized pyrometal- lurgical flowsheet is shown in Fig 2 This process...

Pyrometallurgy

Wang et al achieved Co and Li recovery via mechanochemicallyLiCoO 2 materials were first ball-milled with some additives followed by water leaching procedure and subsequently recovery of Li and Co in the form of Li 2 CO 3 and Co 3 O 4 by chemical precipitation process The ethylenediaminetetraacetic acid EDTA was found to be the best additive for the extraction of valuable metals...

Chemsheet as a simulation platform for pyrometallurgical

The presentation will describe an off-line model of Cu-smelter based on critically assessed properties of the Al-Ca-Cu-Fe-O-S-Si- system slag matte and liquid metal by using the quasichemical model A four-stage reactor model shaft settler uptake and bath is used for optimizing process parameters and feed particle distribution...

Computer Simulation of Pyrometallurgical Processes

Process models The models of individual process units that are to be included in the program must have a standard form since the output from a unit must be calculated from the input to that unit and the specified operating conditions The following features need to be borne in mind when a model for a process unit is set up It is assumed that...

copper process flow sheet

shows flow-sheets for pyrometallurgical and hydrometallurgical 2 copper production Tabl 6-1 and 6-2 provide capsule summaries of these process an overall flowsheet for the recovery of Cu utilized in many copper smelting processes Cankut 1973 Bota et al 1995 A Process Flow Sheet for an Oxide Gold Heap Leach Facility to...

Resources Free Full

The Noranda process is another commercial pyrometallurgical process for the recovery of metals from e-waste The feed material for this process is composed of e-waste and mined copper concentrat At this recycling facility about 100 000 tons of e-waste is processed for metal recovery The schematic of the process flow sheet is shown in...