The Albion Process is an atmospheric leaching process used to oxidise refractory gold sulphide mineral concentrates Such sulphide minerals are typical of the refractory gold mineralisation found worldwide and in particular throughout China the Iberian Peninsula and various regions in Latin America...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.
Get PriceBrand Name: Fote Machinery
Application: Ore concentrate/separator plant
Main Equipment : Jaw crusher, impact crusher, hammer crusher, flotation machine, classifier, ball mill, concentrator, etc.
Read MoreCapacity: 0.18-7 (m³/min)
Configuration: Jaw crusher, ball mill, classifier, mixing tank, flotation separator, concentrator and dryer.
Characteristics: High efficient, low energy consumption, strong handling capacity, economical and reasonable.
Read MoreProduction Capacity: 70-5,000 t/d
Raw Materials: Clay, mudstone, slate, gangue, coal ash, shale, sludge and industrial solid waste.
Production Processes: Crushing, batching, grinding, balling, burning, making coal powder, cooling finished products, screening and packing.
Read MoreCapacity: 0.18-7 (m ³/min)
Suitable Materials: Copper, zinc, lead, nickel, gold and other non-ferrous metals, ferrous and non-metal.
Major Equipment: Jaw crusher, ball mill, sprial classifier, flotation machine, concentrator machine and dryer machine
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Gold ore whose types of deposits are diverse and complex is the mineral assemblage of gold. With features of chalcophile affinity and high melting point, the gold ore includes conglomerate type, porphyry type, quartz vein type and volcanic rock type, etc.
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Related Equipments: PE-750×1060 Jaw crusher , PYFB-0918 Hydraulic cone crusher and 3YK1548 vibrating screen .
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Main Equipment:Jaw crusher, impact crusher, hammer crusher, vibrating screen, classifier, ball mill, etc.
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Limestone is mainly composed of calcium carbonate (CaCO3), MO's Hardness 3 degrees. The limestone particles or powders can be used in building materials, road construction, metallurgy, chemical and other industries after crushing or grinding.
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The Albion Process is an atmospheric leaching process used to oxidise refractory gold sulphide mineral concentrates Such sulphide minerals are typical of the refractory gold mineralisation found worldwide and in particular throughout China the Iberian Peninsula and various regions in Latin America
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To treat refractory sulphide concentrates containing gold a number of processes were developed and they can be divided into three groups Figure 1 Figure 1 – Methods to liberate finely disseminated gold Chemical liberation methods to recover finely disseminated gold mean either complete destruction of goldbearing sulphides autoclave leaching bacterialchemical leaching acidicoxygen processes
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Extraction from refractory ores Many goldbearing ores and concentrates are not readily amenable to cyanidation owing to the presence of substances that consume the cyanide reagent before it can dissolve the gold preferentially adsorb the gold as it dissolves a phenomenon called pregrobbing or completely surround the gold particles in such a way as to prevent access by the cyanide leach solution Such ores are referred to as refractory
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Gold can be leached and extractedrecovered in several ways Even if you gold is “refractory” in pyrite or arsenopyrite you can still get much value from your orerock depending on the economics of capital and operating cost The cheapest and fastest option is to simply grind and CIL the whole thing according the the process flowsheet here shown The next option once you have confirmed
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Leachox process developed by Maelgwyn Mineral Services MMS which is a fully fledged low cost refractory gold treatment process Whilst possibly not giving quite as high recoveries as pressure oxidation this is more than compensated for by the significantly lower operating and capital cost
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REFRACTORY SULPHIDES The Outotec BIOX process for the treatment of refractory gold concentrates has been in commercial operation for over 30 years with 13 successful BIOX plants commissioned worldwide To date over 25 million ounces of gold have been produced through BIOX BIOX process is especially suitable for remote locations
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The problems that result from refractory gold are caused by Physical encapsulation of disseminated gold particles usually less than a few micrometers in size within a mineral that is unreactive and impervious to leaching Chemical interference by one or more of the ore constituents in the cyanide leaching process
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Several different classes of process options for pretreating refractory ores are considered These options include roasting oxidation wet chemical treatment bacterial peroxidation and other pre treatments such as eliminating arsenic in vacuum volatile smelting segregation of roasting
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Metallurgical ContentGold Leaching Processing of Arsenic OreMispickel Arsenopyrite FeAsS6Leaching and Recovering Gold from Antimony MineralsStibnite Antimony Sulphide Sb2S2Telluride Gold Ore ProcessingSolubility of TelluridesGold Extraction from Carbonaceous OreList Gold Refractory Process Methods Where gold is associated with arsenic antimony tellurium and
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By 2000 bc the process of purifying goldsilver alloys with salt to remove the silver was developed The mining of alluvial deposits and later lode or vein deposits required crushing prior to gold extraction and this consumed immense amounts of manpower
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