pressure oxidation autoclave au

Optimisation of Circuits for Gold Pressure Oxidation AusIMMTitanium Internals in Refractory Lined Pressure Oxidation

Pressure oxidation is one method of rendering the ores more suitable for cyanidation The focus of this work is optimisation of autoclave configuration for pressure oxidation An autoclave for the pressure oxidation of a feed containing pyrite and arsenopyrite was modelled using the Titanium Internals in Refractory Lined Pressure Oxidation Autoclaves Author Franceschini M Author Ugarenko C Hatch Ltd Autoclave Technology Sr Piping Engineer Hatch Ltd Autoclave Technology Welding Technologist Co Author Gothard S WE Smith Engineering Pry Ltd General Manager 4 Bending the 10 mm Titanium Gr 2 to a 50 mm

اقتباس السعر

Autoclave Technology Hatch LtdStabilization of supersonic vent gas from autoclave

Every autoclave and preleach circuit is a custom design based on the experience and expertise of the design team With the right innovative and proprietary equipment designs your pressure oxidation needs can be effectively met Our services are unique to your needsSTABILIZATION OF SUPERSONIC VENT GAS FROM AUTOCLAVE PRESSURE OXIDATION 79 Introduction This paper presents the results of computational fluid dynamics CFD and finite element analyses FEA in the design of a novel blast shroud configuration using a perforated plate as it applies to pressure letdown of vent gas from a pressure oxidation process

اقتباس السعر

PRESSURE OXIDATION OF REFRACTORY GOLD ORES EKATO in Hydrometallurgy Ekato

Pressure Oxidation Pressure oxidation is employed to liberate gold and silver in refractory sulfide concentrates often and or The main pressure oxidation products from iron sulfide minerals are sulfuric acid and metal sulfates and hematite Depending on the conditions within the autoclave acid containing iron compounds can be formedAutoclave technology is used in hydrometallurgy when extraction by classical atmospheric leaching methods is not economical Autoclaves are typically horizontal vessels divided into 3 to 9 compartments or a series of single cascading vessels working at high temperature and high pressure

اقتباس السعر

In situ Adsorption of Gold III Chloride on Activated Stabilization of supersonic vent gas from autoclave

partly as Au I Cl and partly as metallic gold The relative amount of metallic gold increased with temperature but decreased with high chloride ion concentration The second type carbon in autoclave of experiment involved pressure leaching at 155 33 Autoclave pressure oxidation / carbon adsorption tests 23 331 2 L Parr STABILIZATION OF SUPERSONIC VENT GAS FROM AUTOCLAVE PRESSURE OXIDATION 79 Introduction This paper presents the results of computational fluid dynamics CFD and finite element analyses FEA in the design of a novel blast shroud configuration using a perforated plate as it applies to pressure letdown of vent gas from a pressure oxidation process

اقتباس السعر

Macraes Operation OceanaGoldValves for gold autoclave pressure oxidation POX

Macraes Processing Plant Leaders in new technology application flash flotation pressure oxidation OK 300m3 float cells fine grinding with Isa mill and preg robbing management Process availability maintained at gt =95 for 10 years Autoclave availability of 95 since commissioned in Planned versus unplanned downtime better than 80 Autoclave pressure oxidation POX is an effective pre treatment option when extracting gold from refractory ore bodies such as pyrite and arsenopyrite While gold processing plants are the most common utilizers of POX technology the process can also be

اقتباس السعر

Pressure Oxidation Overview ScienceDirectHigh Pressure Acid Leach Caldera Engineering

Pressure oxidation refers to the oxidation of sulfides such as pyrite FeS 2 and marcasite FeS 2 at elevated temperature and pressure Oxidation releases encapsulated gold grains from the sulfides and makes the oxidation residue of the ore or concentrate more amenable for gold recovery by cyanidation in a subsequent leaching stepHigh Pressure Acid Leach HPAL is a process used to extract nickel and cobalt from laterite ore bodi The HPAL process utilizes elevated temperatures roughly 255 degrees Celsius elevated pressures roughly 50 bar or 725 psi and sulfuric acid to separate nickel and cobalt from the laterite ore

اقتباس السعر

Valves for gold autoclave pressure oxidation POX Deportment of gold in an autoclave pressure oxidation AC

Autoclave pressure oxidation POX is an effective pre treatment option when extracting gold from refractory ore bodi has wide selection of valves that control various liquid and gaseous flows in gold autoclave POX processDeportment of gold in an autoclave pressure oxidation AC POX /carbon in leach CIL residue Request for analysis A carbonaceous refractory sulphide ore is processed in an autoclave pressure oxidation plant and subsequently subjected to a cyanide leaching

اقتباس السعر

High Pressure Acid Leach Pressure OxidationPressure Oxidation Mining SGS

oxidation reaction would generate sufficient heat for the oxidation reaction to proceed to completion Non acidic pressure oxidation techniques such as alkaline pressure oxidation use similar conditions of temperature pressure and oxygen to acidic route but the process is Pressure oxidation POX high pressure oxidation HiPOX and ACTIVOX autoclave leaching are viable industry standard technologies used to recover gold and other accessory metals The process is particularly well suited for treating refractory gold ores which

اقتباس السعر

HATCH HIGH PRESSURE METALLURGY AUTOCLAVE Pressure Oxidation Caldera Engineering

Jun 11 32 Autoclave Complete Re line Hatch Why Materials Testing Matters in Autoclave Engineering Impala Platinum Ltd Design of a Medium Pressure Alloy Autoclave 11 30 30 12 00 Vale SA Goro Continuous Improvement at Vale New Caledonia Goro Freeport McMoRan Inc Development of Pressure Oxidation of Bulk Concentrate at Freeport McMoRan MiningOverview Pressure Oxidation POX is a process used to extract gold copper zinc molybdenum and uranium from refractory ore bodi The POX process utilizes elevated temperatures roughly 230 degrees Celsius elevated pressures roughly 35 bar or 510 psi and oxygen to liberate the minerals from refractory or

اقتباس السعر

USA Gold recovery from refractory carbonaceous EKATO in Hydrometallurgy Ekato

A process for recovering gold in which an ore slurry of refractory sulfidic and refractory carbonaceous ore having preg robbing characteristics due to the presence of organic carbon is subjected to pressure oxidation in an autoclave The oxidized ore slurry is mixed with a thiosulfate salt lixiviant which mixture is maintained at a pH between 7 and 87 while the slurry is agitated in a Autoclave technology is used in hydrometallurgy when extraction by classical atmospheric leaching methods is not economical Autoclaves are typically horizontal vessels divided into 3 to 9 compartments or a series of single cascading vessels working at high temperature and high pressure

اقتباس السعر

pressure oxidation autoclave alibabaGOLD AUTOCLAVE FUNDAMENTALS tahija13

Alibaba offers 896 pressure oxidation autoclave products About 94 of these are sterilization equipments A wide variety of pressure oxidation autoclave options are available to you such as pressure steam sterilization equipments boiling sterilization apparatus and gas sterilization equipmentsAt Lone Tree nitrogen gas flotation is used to minimize oxidation of arsenian pyrite during flotation Straight cyanidation of gold bearing pyrite usually results in poor recoveries so a pre cyanide oxidation step is used Roasting and high temperature high pressure oxidation in an autoclave are the two two main methods used

اقتباس السعر

New Developments in the Atmospheric and Pressure PAI Autoclave Circuit Training

New Developments in the Atmospheric and Pressure Leaching of Copper Ores and Concentrates Ferric provided by pressure oxidation of Pyrite concentrate under water in a pressure leach autoclave Resource Total Measured Indicated KTons Cu KTonsJan 08 32 In this training module we ll cover the workings of an autoclave circuit that s designed to oxidize finely ground refractory gold ore so that it s suitable for conventional cyanide leaching We

اقتباس السعر