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ATIEMAR Heavy Industry
Over the more than 30 years of experienceATIEMAR Heavy Industry which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ².
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refractory ore processing
2021-11-21T10:11:35+00:00
Processing of refractory gold ores ScienceDirect
The Mereur ore as well as containing Processing of refractory gold ores 1033 carbon has a significant carbonate content and this allows the process to be operated in the alkaline pH range First Miss Gold Inc Getchell project achieved commercial production during 1989
Processing of refractory gold ores ScienceDirect
The best choice of a processing route to treat a refractory ore will in most cases be site specific, due mainly to the metallurgical and mineralogical characteristics of the ore The successful application of these processing techniques can result in mining operations that would otherwise have been impossible
Refractory Gold Ore Treatment Methods
Metallurgical ContentGold Leaching Processing of Arsenic OreMispickel (Arsenopyrite: FeAsS)6Leaching and Recovering Gold from Antimony
Options to Treat Refractory Ores Albion Process
options for treating more complex ore bodies as the less refractory ores become depleted Demonstration of economic treatment options allows gold companies to maintain and increase their ore reserves The selection of options to treat a specific ore is significantly impacted by factors such as
Processing Refractory Gold Hydrometallurgy: Leaching in
May be increasing gold recovery from refractory gold ore (with grade 23 g/t) to 9095%?Actual data of top refractory gold ore mines show, that gold recovery is 70% and less What is reason? It is a problem in minerals processing or it is a global science problem? So if
Refractory gold reserves: Challenges and opportunities for
Another benefit of having a refractoryore processing plant is the transfer of knowhow and experience between different operations Miners can tap into the opportunity for lower costs per ounce offered by highergrade refractory gold reserves However, when considering this potential, they need to factor in higher capital and operational costs
(PDF) Cyanidation of Refractory Gold Ores: A Review
In this paper, the effect of the oxidative pretreatment and lead nitrate addition on the cyanidation of Zarshuran refractory gold ore containing 332 ppm Au, 109% As, and
The Leachox™ Refractory Gold Process – The Testing,
The Leachox refractory gold process has to date been applied to the selectivetreatment of several refractory gold ores but on a relatively small scale In this paper the successful implementation of the process, from initial testing through to commissioning at one of the world’s largest refractory gold mines is described
Recovery Refractory Resources SGS
148 PRECIOUS METALS PROCESSING Recovering refractory resources Refractory gold ore needs pretreatment for cyanidation to be effective in gold recovery Ailbhe Goodbody looks at the advantages and disadvantages of the most common pretreatment options, and speaks to some companies that offer or use the processes A refractory gold ore is gold
Gold extraction QueensMineDesignWiki
IntroductionOre ClassificationComminution ProcessesProcess SelectionMill SizingConclusionReferencesGold ore can be classified as freemilling, complex, or refractory and each type of ore has different challenges when it comes to processing methods Cyanidation with CIL/ CIP continues to be the most common method, although there are environmental concerns due to toxicity As mining companies continue to face pressure to reduce environmental impact, and as freemilling ores become less and less available, there will be increased focus on developing advanced gold processing techniques Through v
Refractory solutions for ore processing Allied Mineral
Refractory solutions for ore processing equipment including the preheater and kiln
Review Pretreatment Process on Refractory Gold Ores
refractory gold ore bearing organic carbon 4 Bacterial Preoxidation The research of bacterial peroxidation is quite active The technology started to process ores in the 1950 s, and at first leached to recovery copper from the lowgrade copper ore or marginal copper
Process for recovering metals from refractory ores
The present invention is a process to recover metals from refractory ores It involves the chlorination of an ore concentrate in the presence of solid salt at a temperature between 300° and 650° C Thereafter, an oxidation step can be used to convert iron chloride to iron oxide Subsequent separation steps remove the salt, gangue, and iron
Processing Refractory Gold Hydrometallurgy: Leaching in
May be increasing gold recovery from refractory gold ore (with grade 23 g/t) to 9095%?Actual data of top refractory gold ore mines show, that gold recovery is 70% and less What is reason? It is a problem in minerals processing or it is a global science problem? So if
Cyanidation of Refractory Gold Ores: A Review
processing, depth and possible ore characteristics in refractory ore (Deep West Orebody, Jokisivu Ore, Getchell Ore, etc)(Bowell et al, 1999; Hausen, 2000; Liipo, 2003) Research by Liipo
Amursk POX2 Polymetal
Amursk POX2 is designed for processing doublerefractory ore and aimed to make 100% of the Company’s refractory ore to be processed inhouse POX2 differs from POX1 in the way that it will operate at twotimes higher pressure and 40 *C higher temperature, and it will use a larger and more advanced autoclave (one of the biggest in the world
The Leachox™ Refractory Gold Process – The Testing,
The Leachox refractory gold process has to date been applied to the selectivetreatment of several refractory gold ores but on a relatively small scale In this paper the successful implementation of the process, from initial testing through to commissioning at one of the world’s largest refractory gold mines is described
Refractory Gold Technology
Sherritt had also provided extensive process development services to Homestake Mining Company, leading to the first commercial application of pressure oxidation for refractory gold ore treatment, at the McLaughlin Gold Complex in California, commissioned in
Gold extraction QueensMineDesignWiki
Gold ore can be classified as freemilling, complex, or refractory and each type of ore has different challenges when it comes to processing methods Cyanidation with CIL/ CIP continues to be the most common method, although there are environmental concerns due to toxicity
Establishing thE ProcEss MinEralogy of gold orEs
of refractory gold minerals and locking of submicroscopic gold in sulfide mineral structure etc Gold process mineralogy helps address issues and problems related to gold ore processing It provides useful information on process selection, flowsheet development, recovery improvement and reagent consumption optimization
Refractory solutions for ore processing Allied Mineral
Refractory solutions for ore processing equipment including the preheater and kiln
Review Pretreatment Process on Refractory Gold Ores
refractory gold ore bearing organic carbon 4 Bacterial Preoxidation The research of bacterial peroxidation is quite active The technology started to process ores in the 1950 s, and at first leached to recovery copper from the lowgrade copper ore or marginal copper
Process for recovering metals from refractory ores
The present invention is a process to recover metals from refractory ores It involves the chlorination of an ore concentrate in the presence of solid salt at a temperature between 300° and 650° C Thereafter, an oxidation step can be used to convert iron chloride to iron oxide Subsequent separation steps remove the salt, gangue, and iron
The Leachox™ Refractory Gold Process – The Testing,
The Leachox refractory gold process has to date been applied to the selectivetreatment of several refractory gold ores but on a relatively small scale In this paper the successful implementation of the process, from initial testing through to commissioning at one of the world’s largest refractory gold mines is described
Processing Refractory Gold Hydrometallurgy: Leaching in
May be increasing gold recovery from refractory gold ore (with grade 23 g/t) to 9095%?Actual data of top refractory gold ore mines show, that gold recovery is 70% and less What is reason? It is a problem in minerals processing or it is a global science problem? So if
The reasons of gold refractory, Gold ore classification
The reason of the gold mineral refractory There are so many types of reasons that caused the difficulty of gold ore processing, including physical
Amursk POX2 Polymetal
Amursk POX2 is designed for processing doublerefractory ore and aimed to make 100% of the Company’s refractory ore to be processed inhouse POX2 differs from POX1 in the way that it will operate at twotimes higher pressure and 40 *C higher temperature, and it will use a larger and more advanced autoclave (one of the biggest in the world
Recovery of gold from refractory gold ores: Effect of
The extraction of gold from refractory gold ores (RGOs) without side reactions is an extremely promising endeavor However, most RGOs contain large amounts of sulfide, such as pyrite Thus, investigation of the influence of sulfide on the gold leaching process is important to maximize the utilization of RGOs In this work, the effects of pyrite on the stability of the thiourea system were
Process for recovering gold from refractory sulfidic ores
A process for recovering gold from a refractory sulfidic ore which has been suspended in an aqueous slurry and oxidized using nitric acid so that substantially all of the gold in the ore is made available for recovery and at least a portion of the sulfidic components present during the oxidation are oxidized to elemental sulfur, comprises bubbling air as a discontinuous phase upwardly through
Refractory Gold Technology
Sherritt had also provided extensive process development services to Homestake Mining Company, leading to the first commercial application of pressure oxidation for refractory gold ore treatment, at the McLaughlin Gold Complex in California, commissioned in