Pressure Leaching Of Copper Concentrates

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RECOVERY OF GOLD AND SILVER FROM OXIDATION …

Introduction In the ammonia/ammonium sulphate oxidation leaching of sulphide concentrates such as chalcopyrite for the recovery of copper at 50 to 120 C, some solubilization of gold and silver may occur during the …

TECK’S CESL COPPER PROCESS: A COMMERCIAL READY …

TECK’S CESL COPPER PROCESS: A COMMERCIAL READY CONCENTRATE LEACH ALTERNATIVE Keith Mayhew, Tannice McCoy, and Rob Mean Teck Resources Limited 12380 Horseshoe Way Richmond, BC Canada V7A 4Z1 [email protected]

Oxygen pressure acid leaching of Gacun complex Cu concentrates

J. Cent. South Univ. (2012) 19: 71−76 72 and chemical principle utilizing Gacun complex copper concentrates by oxygen pressure acid leaching are studied in this work. 2 Experimental 2.1 Materials The Cu concentrate used in this work was taken from Gacun ...

copper concentrate handling

Pressure Leaching of Copper Concentrates Pressure Leaching of Copper Concentrates John O Marsden Senior Vice President , Freight rates, distances, handling Copper recovery [Live Chat] Pressure Leaching of Copper Concentrates

morenci copper heap leaching flowsheet …

> Mining News > morenci copper heap leaching flowsheet process description Print morenci copper heap leaching flowsheet process description Posted at:December 16, 2012[ 4.9 - 2290 Ratings] Medium-Temperature Pressure Leaching of Copper … The ...

CHALCOPYRITE: BIOLEACHING VERSUS PRESSURE …

lil:1 Impeller Agitator 4.6m Slurry inlets Slurry Outlets Steam and Oxygen Agitator Manhole Figure 2- An autoclave for pressure leaching of pyrite concentrates EXC$S Figure 3- Typical flowsheet for pressure leaching of sulfide concentrates where an …

Copper extraction - Wikipedia

All primary sulfide ores of copper sulfides, and most concentrates of secondary copper sulfides (being chalcocite), are subjected to smelting. Some vat leach or pressure leach processes exist to solubilise chalcocite concentrates and produce copper …

Galvanic enhancement for high pressure leaching of …

and copper sulphide concentrates. Atmospheric leaching of chalcopyrite in sulphate and chloride media up to 100oC has also been studied in several investigations and reviewed recently by Watling [2]. ...

Patent US7491372 - Procedure to leach copper …

Procedure to leach copper concentrates, under pressure and at ambient temperature, by forming a reactive gel in a sulfate-chloride ... This process was based on a leaching in chloride media. On the other hand, leaching copper ores (and silver) in chloride media ...

PERUMIN 31: The Hydrometallurgical Treatment …

PERUMIN 31: The Hydrometallurgical Treatment of Copper Concentrates: An Alternative to Smelting? 1. New Developments in the Atmospheric and Pressure Leaching of Copper Ores and Concentrates David …

Pyrite Leaching Behaviour under CESL Process Conditions

INTRODUCTION A key defining difference of the CESL Copper Process for the hydrometallurgical treatment of copper concentrates is the limited extent of sulphur (S) oxidation occurring during the leaching step. This is important because extra S oxidation: …

01 1500 David Dreisinger | Sulfur | Copper

2/1/1970· New Developments in the Atmospheric and Pressure Leaching of Copper Ores and Concentrates David Dreisinger University of British Columbia Vancouver, Canada Copper Solvent Extraction – Hydroxyoxime The Enabling Technology ..... Copper Leach–Solvent ...

Pressure oxidation leaching of chalcopyrite : …

Pressure oxidation leaching of chalcopyrite: Part II: Comparison of medium temperature kinetics and products and effect of chloride ion ... I. MastersPressure acid leaching of zinc and copper concentrates by Dynatec P.R. Taylor (Ed.), EPD Congress 2000, , () ...

LEACHING OF COPPER CONCENTRATES

LEACHING OF COPPER CONCENTRATES by ROBERT FRANCIS SHANTZ A Thesis Submitted to the Faculty of the ... Ammonia Pressure Leaching Cyanidation Ferric Chloride Leach Acid Chlorine Leach Ferric Sulfate Leach Direct Acid Pressure Leaching ...

Acid Pressure Leaching | Cobalt | Copper

10/6/2018· Acid Pressure Leaching of Copper Sulfides Part 1 Over the past few months, Pincock Allen & Holt (PAH) has been working on the due diligence of the Las Cruces copper project in Spain, owned by MK Gold of Salt Lake City, Utah. One of the interesting unit ...

Iron Control in Zinc Pressure Leach Processes

18/6/2018· Iron Control in Zinc Pressure Leach Processes K.R. Buban, M.J. Collins, and I.M. Masters TABLE OF CONTENTS INTRODUCTION ... Iron behavior is readily controlled in the pressure leaching of zinc concentrates. Depending on overall requirements for the zinc ...

Enargite Treatments and Pressure Oxidation of Concentrates

Enargite Treatments and Pressure Oxidation of Concentrates Kimberly Conner1, Corby Anderson*2 ... This was followed by pressure leaching in sulfuric acid with oxygen (Padilla, Vega, and Ruiz 2007). One commercial process for treating large quantities of ...

US3637371A - Direct pressure leaching of …

DIRECT PRESSURE LEACHING OF COPPER-IRON SULPHIDES Vladimir Nicolaus Mackiw, Fort Saskatchewan, Alberta; Herbert Veltman, Edmonton ...

Copper and elemental sulphur from chalcopyrite by pressure leaching

Copper and elemental sulphur from chalcopyrite by pressure leaching by A. Vizsolyi, H. Veltman, I. H. Warren, and V. N. Mackiw Processes employing direct oxidation unde-r an over pressure of air or oxygen in an aqueous sulphuric acid medium have been ...

Recover Cobalt & Copper from Sulfide …

We conducted bench-scale research on a process for treating cobaltite concentrates, comprising: oxidative pressure leaching, ... pyrrhotite, sphalerite, and native copper. Oxidative Pressure Leaching Metal values were effectively dissolved by leaching the ...

Pressure Leaching of Copper Concentrates - …

Pressure Leaching of Copper Concentrates John O. Marsden Senior Vice President –Technology & Product Development 2 October 25th, …

Pressure Leaching of Copper Concentrates - MetSoc of …

Pressure Leaching of Copper Concentrates John O. Marsden Senior Vice President – Technology & Product Development 2 October 25th, 2004 Presentation Outline ...

New Developments in the Atmospheric and Pressure Leaching of Copper Ores and Concentrates

Atmospheric and Pressure Leaching of Copper Ores and Concentrates David Dreisinger University of British Columbia Vancouver, Canada ...

Medium-Temperature Pressure Leaching of …

By Marsden, J O Wilmot, J C; Smith, R J Abstract Parts I and II in this series of papers presented the chemistry of medium-temperature pressure leaching of copper sulfide concentrates and reviewed the metallurgical development …

Sherritt International - Operations - Commercial …

Pressure leaching of copper concentrates We also work with clients to develop and commercialize processes for the recovery of copper, gallium, indium, lead, molybdenum, silver and vanadium, and for the removal of undesirable elements such as arsenic ...

Optimisation of Circuits for Pressure Leaching of Sulfide Ores and Concentrates

design a copper leach autoclave at a base metals refinery (Crundwell, 2005), to predict the performance of a zinc pressure leaching operation (Crundwell & Bryson, 1992) and to model and optimise bacterial leaching reactors (Crundwell, 2000). The aim of this ...

Copper concentrate pressure leaching - plant …

30/5/2018· Download citation | Copper concentrate p... | Phelps Dodge Mining Company (Phelps Dodge) is operating a pressure-leach vessel (PLV) for copper concentrates at the Bagdad Mine facility in Arizona. This single PLV unit was engineered and constructed based on ...

(PDF) Optimization of circuits for pressure …

27/6/2005· PDF | Pressure leaching is an option for copper recovery from chalcopyrite. Leaching takes place at high temperatures and pressures in the presence of an oxidizing agent. This work shows how the performance of pressure leaching …

Pressure leaching of sulfide concentrate produced by …

Keywords: Hydrometallurgy, copper concentrates, pressure leaching 1. Introduction The quality of Polish copper ores and concentrates has been declining for years along with their growing complexity (Konstantynowicz-Zielińska, 1990; Rydzewski, 1996 ...

Medium-Temperature Pressure Leaching of …

Medium-Temperature Pressure Leaching of Copper Concentrates – Part I: Chemistry and Initial Process Development ... Brewer, R.E., 2004, "Copper concentrate pressure leaching-Plant scale-up from continuous lab testing," Minerals & Metallurgical ...