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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

  • Cited by: 78
  • 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

  • Cited by: 78
  • Refractory Gold Ore Treatment Methods

      Metallurgical ContentGold Leaching Processing of Arsenic OreMispickel (Arsenopyrite: FeAsS)6Leaching and Recovering Gold from Antimony

  • 预计阅读时间:9 分钟[PDF]
  • 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

  • 预计阅读时间:10 分钟
  • 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

  • 预计阅读时间:5 分钟[PDF]
  • 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

  • [PDF]
  • 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

  • [PDF]
  • 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

  • [PDF]
  • 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

  • [PDF]
  • 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

  • [PDF]
  • 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

  • [PDF]
  • 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

  • [PDF]
  • 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

  • [PDF]
  • 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

  • [PDF]
  • 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