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  • High gold concentrations in sulphidebearing magma

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    High gold concentrations in sulphidebearing magma under oxidizing to extract gold from mantle rocks At more oxidizing metal extraction are the

  • Published in: Nature Geoscience 183 2011Authors: Roman E Botcharnikov 183 Robert L Linnen 183 Max Wilke 183 Francois HoltzAffiliation: University of Waterloo 183 University of Western Ontario 183 Leibniz UniversiAbout: Mantle 183 SubductionInquire Now
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    MINERAL DRESSING Some Approaches to Gold

    Some Approaches to Gold Extraction from Rebellious Ores on oxidizing calcinations of flotation concentrates, alkaline leaching of calcines, cyanidation

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  • gold processing | Britannica

    gold processing: preparation of the allows gold to be refined from less noble metals by oxidizing the other metals and then crushing prior to gold extraction,

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  • nitrous oxide for gold extraction BINQ Mining

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  • Chinese Biooxidation Gold Extraction Technology

    Official FullText Paper (PDF): Chinese Biooxidation Gold Extraction Technology Reaches International Advanced Level

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  • Day 54, Gold extraction by cyanidation | Rio Suerte

    And an oxidizing agent such as oxygen Day 54, Gold extraction by cyanidation but is very slow and the efficiency of gold extraction is between 50 and 75%

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  • Extraction of Gold

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    Complete extraction of the gold by As a preliminary step the material is submitted to an oxidizing and The extraction of gold by the cyanide

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    Gold Extraction and Recovery Processes Semantic

    Gold Extraction and by highly oxidizing, acidic and complexing (chloride) solutions, followed by redeposition in a more concentrate form

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  • Refractory Gold | Mining | SGS

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    SGS has industry leading gold experts who can help with any aspect of your refractory gold strongly oxidizing sustainable refractory gold extraction

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  • Extraction of Gold

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    Complete extraction of the gold by As a preliminary step the material is submitted to an oxidizing and The extraction of gold by the cyanide

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  • [PDF]

    MERCURY CYANIDE CONTAMINATION OF

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    MERCURY CYANIDE CONTAMINATION OF GROUNDWATER FROM GOLD these three elements and is simultaneously dissolved during gold extraction oxidizing

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  • ON THE ISSUE OF GOLD EXTRACTION FORM

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    The Republic of Kazakhstan Simple ore cyanidation does not result in high values of gold extraction The oxidizing roasting requires the application of highly

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  • [PDF]

    Effect of Pretreatment of Sulfide Refractory

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    with Sodium Hypochlorite, Followed by Extraction of Gold by Pressure Cyanidation, on Gold Removal fore, in alkaline oxidizing conditions, arsenopyrite can be

  • Authors: Alejandro Valenzuela 183 Jesus L Valenzuela 183 Jose R PargaAffiliation: Universidad De Sonora 183 Lamar UniversityInquire Now
  • Arsenic Pyrite Gold Extraction by Alkaline Leaching

    Gold mining uncovers more and more hydrothermal deposits in which gold mineralization is associated with sulfides and other compounds of base metals, arsenic

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  • [PDF]

    An Overview of the EnviroLeach Gold Recovery

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    MetSolve Laboratories Inc [2] January, 2017 An Overview of the EnviroLeach Gold Recovery Process 1 Overview The hydrometallurgical extraction of

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  • Recovery of Gold in Pyritic Sulfide Ores Mine

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    Recovery of Gold in Pyritic Sulfide Ores The now extinct Us Bureau of Mines conducted numerous studies of gold in pyrite, and sulfide ores over the years, until their

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  • Bioleaching Wikipedia

    Bioleaching is the extraction of metals from their ores Bioleaching can involve numerous ferrous iron and sulfur oxidizing The gold is removed from

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  • Leaching of an oxide gold ore with chloride hypochlorite

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    Leaching of an oxide gold ore with chloride hypochlorite reaching 67% gold extraction The effect of initial concentration of oxidizing agent on gold

  • Published in: International Journal of Mineral Processing 183 2007Authors: Morteza BaghalhaAffiliation: Sharif University of TechnologyAbout: Chlorine 183 Lixiviant 183 Kinetics 183 Gold 183 Coordination complex 183 LeachingInquire Now
  • Effect of Pretreatment of Sulfide Refractory Concentrate

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    The majority of the refractory gold and silver occurs in occlusion in sulphides, then precious metal dissolution is possible by first oxidizing auriferous sulfide

  • Authors: Alejandro Valenzuela 183 Jesus L Valenzuela 183 Jose R PargaAffiliation: Universidad De Sonora 183 Lamar UniversityInquire Now
  • Recovery of Gold in Pyritic Sulfide Ores Mine

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    Recovery of Gold in Pyritic Sulfide Ores The now extinct Us Bureau of Mines conducted numerous studies of gold in pyrite, and sulfide ores over the years, until their

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  • Biooxidation of Carbonaceous Refractory Gold Ores by

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    Biotechnologies in Mining Industry and Environmental Engineering: Biooxidation of Carbonaceous Refractory Gold Ores by an IronSulfurOxidizing Mixotrophic Bacterium

  • Published in: Advanced Materials Research 183 2015Authors: R Winarko 183 M Zaki Mubarok 183 I N Rizki 183 Siti Khodijah ChaerunAffiliation: Bandung Institute of Technology 183 GeoservicesAbout: Gold cyanidation 183 RecoveryInquire Now
  • Mineral Processing and Extractive Metallurgy Review

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    Gold is one of the most important sources of currency entry in the economics of any state Besides mining raw materials, fit for effective gold extraction, residues

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  • [PDF]

    NICHROMET CYANIDEFREE PROCESS FOR GOLD

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    NICHROMET CYANIDEFREE PROCESS FOR GOLD EXTRACTION used as oxidizing and leads to the gt9095 % gold extraction yield in

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  • Refining Gold with Oxidizing and Chlorinating Agents

    Metallurgical Content1 Nitre Refining2 Refining With Mercuric Chloride3 Refining with Ammonium Chloride4 Refining with Iron5 Removal of Tin6 Experimental Chlorinating

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  • Microbial oxidation of gold ores and gold ScienceDirect

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    An other approach to oxidizing gold ores prior to cyanide extraction is to use Gold extraction in creased from 5% in the ScienceDirect 174 is a

  • Published in: Fems Microbiology Letters 183 1994Authors: Gregory J OlsonAbout: Bioleaching 183 Redox 183 Refractory metals 183 Gold extraction 183 BacteriaInquire Now
  • Biomining and Bioleaching of Ores by Grace N Ijoma

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    Biomining and Bioleaching of Ores by Grace N Ijoma Ferric iron is an oxidizing agent and can oxidize, For gold extraction for example,

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  • Leaching of an oxide gold ore with

    Read quotLeaching of an oxide gold ore with chloride hypochlorite solutions, International Journal of Mineral Processingquot on DeepDyve, the largest online rental service

  • Published in: International Journal of Mineral Processing 183 2007Authors: Morteza BaghalhaAffiliation: Sharif University of TechnologyAbout: Chlorine 183 Lixiviant 183 Kinetics 183 Gold 183 Coordination complex 183 LeachingInquire Now
  • Leaching of gold and silver from printed circuit board

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    Leaching of gold and silver from printed circuit board of for gold extraction in The effects of adding the oxidizing agent (H 2 O 2), in the extraction

  • Published in: Remrevista Escola De Minas 183 2015Authors: Patricia Melo Halmenschlager Petter 183 Hugo Marcelo Veit 183 Andrea MouAffiliation: Universidade Federal Do Rio Grande Do SulAbout: Leaching 183 Printed circuit boardInquire Now
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    Improving Gold Recovery from Refractory Gold Ores

    mixotrophic and chemolithotrophic bacteria on the gold extraction during cyanidation of the Iron and sulfuroxidizing mixothrophic bacteria (designated by SKC1)

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  • [PDF]

    Effect of Pretreatment of Sulfide Refractory

    file scirp pdf ACES_2013070415343240 pdf

    with Sodium Hypochlorite, Followed by Extraction of Gold by Pressure Cyanidation, on Gold Removal fore, in alkaline oxidizing conditions, arsenopyrite can be

  • Authors: Alejandro Valenzuela 183 Jesus L Valenzuela 183 Jose R PargaAffiliation: Universidad De Sonora 183 Lamar UniversityInquire Now
  • [PDF]

    MERCURY CYANIDE CONTAMINATION OF

    engr mun ca ~ccoles Publications 0227231 pdf

    MERCURY CYANIDE CONTAMINATION OF GROUNDWATER FROM GOLD these three elements and is simultaneously dissolved during gold extraction oxidizing

  • Authors: Cynthia A ColesAffiliation: Queen S Faculty of Engineering Applied ScienceInquire Now
  • [PDF]

    The extractive metallurgy of gold Home Springer

    The extractive metallurgy of gold 6070% gold extraction can be achieved with this This is conventionally achieved by oxidizing roasting of a flotation

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  • Golddigging bacterium makes precious particles :

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    Gold prospectors may one day use Petri dishes to help with their quests A species of bacterium forms nanoscale gold nuggets to help it to grow in toxic solutions of

  • Published in: Nature 183 2013Authors: Ewen CallawayAffiliation: Colorado CollegeInquire Now
  • Extraction of gold from carbonaceous ores : pilot plant

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    Get this from a library! Extraction of gold from carbonaceous ores : pilot plant studies [Bernard J Scheiner United States Bureau of Mines ] Oxidation

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  • Hydrogen Peroxide Market for Gold Extraction Global

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    Hydrogen Peroxide Market for Gold Extraction, It is weakly acidic in nature but has strong oxidizing properties due to which it acts as a powerful bleaching agent

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  • Mining amp Gold Processing OGSI: Oxygen Generator

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    Mining amp Gold Processing Boost gold recovery and reduce your mines and injected directly into the waste stream as an environmentally friendly oxidizing

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    Process Development pubs dggsalaskagov

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    Process Development P Chapter 5 Ferric Chloride Leaching of the Delta Sulfide Ores and Gold Extraction oxidizing solutions coupled with separating of

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    Gold Formation, Extraction, and Refining in

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    Gold Formation, Extraction, high electrical conductivity and its nonoxidizing nature Gold formation in the Sierra Nevada began as far back as the late

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  • Patent US5284633 Solvent extraction of precious

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    Solvent extraction of precious metals with hydroxyquinoline and stripping gold extraction and gold from trace levels found in the oxidizing

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  • Gold Treatment With Sulfuric Acid ~ Technology

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    Gold treatment with sulfuric acid is the The process of Acid Treatment on gold is very strong dehydrating property and if concentrated strong oxidizing

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  • Patent US7682420 Method for leaching gold Google Patents

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    Try the new Google Patents, OF GOLD EXTRACTION FROM ORES oxidizing the metallic elements other than gold than that for recovering oxidizing gold

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  • BioOxidation and Biocyanidation of Refractory Mineral

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    BioOxidation and Biocyanidation of Refractory Mineral Ores for Gold Extraction: A Review

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  • [PDF]

    Gold Extraction and Recovery Processes Semantic

    Gold Extraction and by highly oxidizing, acidic and complexing (chloride) solutions, followed by redeposition in a more concentrate form

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  • Stephen FOLEY, et al : Gold Extraction Rex Research

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    Thus the extraction of gold and palladium with the disclosed extractant enabling the by adding an acid containing an oxidizing Gold extraction

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  • Technologies | EnviroLeach Technologies Inc

    The hydrometallurgical extraction of gold from The oxidizing solution or lixiviant consists of a base formula of nontoxic dry Enviroleach Technologies Inc

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  • Patent US4390366 Process for the extraction of

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    First, ruthenium and osmium are oxidized to their tetroxides and then removed from the solution Then, gold is removed by solvent extraction preferably with dibutyl

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  • nitrous oxide for gold extraction BINQ Mining

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  • Process for treating refractory gold ores by roasting

    Laboratory results indicated that the maximum gold extraction Process for treating refractory gold ores by gold ores by roasting under oxidizing

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  • THE LITTLE WORKERS OF THE MINING INDUSTRY | SCQ

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    THE LITTLE WORKERS OF THE MINING INDUSTRY a powerful oxidant that is further capable of oxidizing mineral sulphides: For gold extraction for example,

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  • Mineral Processing and Extractive Metallurgy Review

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    Gold is one of the most important sources of currency entry in the economics of any state Besides mining raw materials, fit for effective gold extraction, residues

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  • John Titus Best Evidence discusses All The Plenarys Men

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    John Titus holds a masters degree in electrical engineering as well as a law method of oxidizing sulfide mineralization for low cost cyanide gold extraction

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  • Gold187reactions of elements [WebElements Periodic Table]

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    This WebElements periodic table page contains reactions of elements for the element gold which is one of the compounds involved in the gold extraction

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  • Microbial oxidation of gold ores and gold ScienceDirect

    sciencedirect science article pii 0378109794903832

    An other approach to oxidizing gold ores prior to cyanide extraction is to use Gold extraction in creased from 5% in the ScienceDirect 174 is a

  • Published in: Fems Microbiology Letters 183 1994Authors: Gregory J OlsonAbout: Bioleaching 183 Redox 183 Refractory metals 183 Gold extraction 183 BacteriaInquire Now
  • oxidation | chemical reaction | Britannica

    in gold processing: Extraction from refractory ores when treated with strong oxidizing agents, undergo oxidation of the side chain while the ring remains intact

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  • 1 Introduction MDPI

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    The use of bacteria in gold extraction, Acidophilic, chemolithotrophic iron and sulphur oxidizing bacteria such as Acidithiobacillus (At ) ferroxidans,

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  • Gold extraction of nitric acid Grinding Mill China

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    Gold extraction of nitric acid gold refining Gold 3 We extract the gold with nitric acid Nitric acid is commonly used as a strong oxidizing agent

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    CYANIDEFREE PROCESS FOR GOLD EXTRACTION

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    CYANIDEFREE PROCESS FOR GOLD EXTRACTION process for gold extraction without the short and long is used as oxidizing agents

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    The Chemistry of the Extraction of Gold

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    The Chemistry of the Extraction of Gold M J Nicol, C A Fleming and R L Paul a particular ligand depends on the strength of the oxidizing agent and on

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    Gold Solvent Extraction SX Kinetics

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    Gold Solvent Extraction Gold Solvent Extraction Reduction Process Gold can be leached from various feed materials by hydrochloric acid under oxidizing

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  • Synthesis of gold nanoparticles under highly oxidizing

    Synthesis of gold nanoparticles under highly oxidizing under oxidizing conditions did not produce gold extraction and preconcentration of gold in

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    COMPARATIVE CYANIDE AND THIOUREA

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    COMPARATIVE CYANIDE AND THIOUREA EXTRACTION OF GOLD BASED ON CHARACTERIZATION STUDIES Basic Properties of Lixiviants used for Gold Extraction using oxidizing

  • Authors: Bahram Rezai 183 F Peykari 183 Z Mos Hefi 183 A AminiAffiliation: Amirkabir University of TechnologyAbout: Extraction 183 Mineralogy 183 Leaching 183 Gold cyanidationInquire Now
  • method of extraction of iron and gold virtues cc

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    The extraction of gold by the cyanidemethod is and the method further comprises blowing air into the solution thereby oxidizing said iron ion (4)

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  • Cyanide Leaching Of Gold Mine Engineer Com

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    information on cyanide leaching of gold leach plants

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  • Arsenic Pyrite Gold Extraction by Alkaline Leaching

    Gold mining uncovers more and more hydrothermal deposits in which gold mineralization is associated with sulfides and other compounds of base metals, arsenic

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  • The Mining Record Mining Directories Mining News

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    The Mining Record is an internationally covered mining news resource that method of oxidizing sulfide mineralization for low cost cyanide gold extraction

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    APPLICATION OF THE BIOX PROCESS TO THE

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    Sulphide Gold Ores and Concentrates in Order to Increase Au and Ag Recovery Rate in Hydrometallurgical Extraction Process N iron and sulf oxidizing bacteria

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