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leaching gold with bromide patent

Energy Saving Ball Mill

Energy Saving Ball Mill

A high efficiency and energy saving ball mill with rolling bearing.Production capacity:Up to 160t/h.Product…

Energy Saving Ball Mill

High Weir Spiral Classifier

High Weir Spiral Classifier

Classifying equipment takes use of the different sedimentation speed of the solid particle in slurry.…

High Weir Spiral Classifier

Sf Flotation Cell

Sf Flotation Cell

SF flotation cell is a mechanical agitation type flotation equipment with self-slurry suction and self-air…

Sf Flotation Cell

Washing Thickener

Washing Thickener

Washing thickener for solid-liquid separation of gold leaching liquid.Production capacity:10-250t/h.Product…

Washing Thickener

Leaching Agitation Tank

Leaching Agitation Tank

Leaching agitaion tank is a leaching equipment for cyanide leaching by referring the USA technical design.Effective…

Leaching Agitation Tank

Desorption Electrolysis System

Desorption Electrolysis System

Desorption electrolysis system obtains gold mud from carbon by desorption and electrowinning.Gold Loaded…

Desorption Electrolysis System

High Frequency Dewatering Screen

High Frequency Dewatering Screen

A multi frequency dewatering screen with large capacity and full dehydration.Production capacity:≤250t/h.Product…

High Frequency Dewatering Screen

Magnetic Separator

Magnetic Separator

A wet permanent magnetic separator for separating strong magnetic minerals. Production capacity: 8-240t/h.…

Magnetic Separator

Wear Resistant Slurry Pump

Wear Resistant Slurry Pump

A slurry pump for conveying pulp with concentration below 65%.Slurry pump impeller and the casing are…

Wear Resistant Slurry Pump

leaching gold with bromide patent

  • how to recover gold from ssn leach liqour Solution for

    SSN, Aqua Regia, Bromide, or any other leach. Recover the GOLD as .99 fine metal Au o. Not precipitates Patent 4528166. Leaching of Gold DocCopper Copper, Gold and Lighthouses Posts Related to how to recover gold from ssn leach liqour. carbon in leach process for gold

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  • gold leaching with bromine springerlink

    Leaching Gold Bromine in a method for leaching gold from.try the new google patents,the gold leaching method with the use of halide such as chlorine and bromine or its gas. Chat Online leach gold bromine samassociates.co

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  • A Method for Leaching or Dissolving Gold from Ores or

    lurgical gold extraction routes utilize a leaching step to produce a gold bearing solution as an intermediate product while the recycling of secondary gold from electronic and precious metal scrap is based on the selective and fast dissolu tion of the precious metal. Therefore, A Method for Leaching or Dissolving Gold from Ores or Precious

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  • US4375984A Recovery of gold from bromide etchants

    Gold, as well as other metals such as copper, titanium, and nickel, are etched from substrates by alkali metal iodide and bromide solutions also containing iodine and bromine, respectively. The dissolved gold is recovered as metallic gold either by precipitating it using an alkali metal hydroxide or by a decomposition technique in which the etchant solution is driven off.

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  • THE RECOVERY OF PLATINUM, PALLADIUM, AND GOLD

    Ion exchange resins were investigated for the effective recovery of platinum, palladium, and gold from a pregnant cyanide heap leach solution. Screening results indicated that strong base anion exchange resins proved to be most effective in the recovery of these metal cyanides.

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  • The leaching of gold using nitrogen and sulfur

    The leaching of gold using less corrosive fluids without significant losses in the dissolution rate of the metal. 19 C.p. f crystals, 6 tables, 4 Il. The invention relates to the field of dissolution of metallic gold leaching solution, especially for the hydrometallurgical recovery of gold from ore.

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  • Leaching of gold and silver from printed circuit board of

    The results for leaching gold with alternative reagents, sodium thiosulfate and ammonium hydroxide, show that the best extraction was achieved at 0.1M sodium thiosulfate and 0.2M ammonium hydroxide, when adding 0.1M of hydrogen peroxide as an oxidation agent, obtaining approximately 11% of gold.

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  • With Leaching Or Dissolving Patents and Patent

    Search for With Leaching Or Dissolving Patents and Patent Applications (Class 75/743) Filed with the USPTO and one of chloride of copper and iron and bromide of copper and iron; leaching monovalent copper and divalent copper with use of oxidizing power of at least one of iron The recovery of both copper and gold occurs in a chloride

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  • Refining placer cons bromide electrolytic leaching Gold

    Nov 19, 20110183;32;Refining placer cons bromide electrolytic leaching. 927 am Hi All I have been researching methods for refining placer gold with Black Sands (BS, I like the abbreviation LOL) and other native gold concentrates. but that it is not really suitable for being a patent as there is an identical process which uses chlorine. The chemistry

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  • Alternative lixiviants to cyanide for leaching gold ores

    4. HALIDE LEACHING Chlorine, bromine and iodine are well known lixiviants for leaching gold, as recently reviewed by Tran et al. (2001). Chlorination was applied extensively in the late 19th century before the introduction of the cyanidation process. Bromine/bromide for leaching gold from ores was reported as early as 1846.

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  • A Method for Leaching or Dissolving Gold From Ores or

    Aug 18, 20050183;32;The hydrometallurgical leaching of native gold from gold bearing ores or the dissolution of gold metal during the recycling of electronic and precious metal scrap is performed every day using

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  • sodium bromide in gold leaching warilab

    CA1340169C Hydrometallurgical process for extracting gold and An aqueous composition adapted for dilution to provide a leaching solution sodium bromide, i.e., two moles sodium bromide to one mole sodium bromate. US7682420B2 Method for leaching gold Google Patents. In a method for leaching gold from copper sulfides, the sulfide ores are

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  • STUDY OF GOLD LEACHING WITH BROMINE AND BROMIDE

    study of gold leaching with bromine and bromide and the influence of sulphide minerals on this reaction Conference Paper (PDF Available) 183; October 2014 with 2,239 Reads Conference COM 2014

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  • DSSOLUTION OF PLATINUM GROUP FOREIGN PATENT

    United States Patent (19. Duyvesteyn et al. III for leaching gold from ores. It was found that a rela tively low bromide ion concentration can be used to effect dissolution of gold, for example, 0.1M bromide ions, as compared to the much higher chloride ion

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  • gold leaching with bromine springerlink

    Leaching Gold Bromine in a method for leaching gold from.try the new google patents,the gold leaching method with the use of halide such as chlorine and bromine or its gas. Chat Online leach gold bromine samassociates.co

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  • Cornstarch Replaces Cyanide In Gold Extraction Popular

    May 14, 20130183;32;Cornstarch Replaces Cyanide In Clean New Gold Extraction Method. Scientists accidentally discover a new way to isolate gold that is much

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  • US Patent for Gold and silver recovery from polymetallic

    Nov 09, 20070183;32;It is possible to take advantage of this reactivity difference to accelerate gold leaching from the oxidized ore, if a catalytic amount of a bromide is introduced into the leaching solution. The leaching solution is a brine solution having a high concentration of chloride, i.e. from 275 to 300 g/l of NaCl or from 190 to 225 g/l of KCl.

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  • Cornstarch Replaces Cyanide In Gold Extraction Popular

    May 14, 20130183;32;Cornstarch Replaces Cyanide In Clean New Gold Extraction Method. Scientists accidentally discover a new way to isolate gold that is much

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  • sodium bromide in gold leaching warilab

    CA1340169C Hydrometallurgical process for extracting gold and An aqueous composition adapted for dilution to provide a leaching solution sodium bromide, i.e., two moles sodium bromide to one mole sodium bromate. US7682420B2 Method for leaching gold Google Patents. In a method for leaching gold from copper sulfides, the sulfide ores are

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  • A Kinetic Study Of Gold Leaching In CuBr NaBr System

    as an alternative for the leaching of gold. The variables analyzed were agitation, temperature, cupric bromide concentration and ion bromide concentration. Two mechanisms of dissolution were apparent depending on temperature. The results show that the CuBr 2 NaBr system is suitable to dissolve gold by a complex dissolution

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  • gold leaching with bromine springerlink

    Leaching Gold Bromine in a method for leaching gold from.try the new google patents,the gold leaching method with the use of halide such as chlorine and bromine or its gas. Chat Online leach gold bromine samassociates.co

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  • STUDY OF GOLD LEACHING WITH BROMINE AND BROMIDE

    STUDY OF GOLD LEACHING WITH BROMINE AND BROMIDE AND THE INFLUENCE OF SULPHIDE MINERALS ON THIS REACTION *Mariam Melashvili 1, Chris Fleming , Inna Dymov1, Mani Manimaran 2, and Joe ODay 1SGS

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  • Amino acids key to new gold leaching process Phys

    quot;In normal gold leaching you would leach with cyanide and then absorb the gold cyanide on to a carbonate leach carbon in pulp. Amino acids key to new gold leaching process

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  • Bromine process for gold ores Free Patents Online

    After leaching the gold out of the ore with 35 the solvent which contains free bromine, the precious metal is precipitated by any of the wellknown methods, such as by addition of zinc dust or ferrous sulfate. The reactions which result in the elimination of the gold also cause reduction of the free bromine to bromide

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  • US Patent for Method for recovering gold Patent (Patent

    Justia Patents Noble Metal Recovered As Free Metal US Patent for Method for recovering gold Patent (Patent 7,799,114) to a value of 580 mV and subsequently 15 g/l of sodium bromide was added to improve gold leaching. The bromide addition was repeated at 10 hourly intervals and at that point the amount was 10 g/l.

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  • Method for leaching gold Free Patents Online

    Mar 23, 20100183;32;The invention claimed is 1. A method for leaching gold from a copper sulfide ore containing gold comprising leaching copper down to 7.9% or less of copper content to form a leach residue containing the gold, bringing the leach residue of said copper sulfide ore containing gold into contact with a leaching solution that dissolves ferrous ion, ferric ion and chloride ion, thereby leaching

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  • Bromine leaching as an alternative method for gold dissolution

    Mar 15, 20180183;32;Fast leaching rate, non toxicity and applicability over a wide range of pH values (from acidic to neutral) are important characteristics of the bromide leaching system (Melashvili et al., 2014). The dissolution of gold in bromide is an electrochemical process, described by reaction .

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  • Eco friendly gold leachingEco Goldex Reagent

    Eco Goldex O series ; The O Series (it refers to Ores) is specially formulated and manufactured with the purpose of replacing the toxic sodium cyanide in gold/silver/PGM rock ore leaching. The O series can compete sodium cyanide easily in most rock ore processing including gold leaching rate (similar or even better), agent consumption (similar or slightly higher) and leaching time (similar or

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  • Using Nickel as a Catalyst in Ammonium Thiosulfate

    Using Nickel as a Catalyst in Ammonium Thiosulfate Leaching for Gold Extraction Harunobu Arima1, Toyohisa Fujita2 and Wan Tai Yen3 by many investigators for gold extraction thiourea, bromide, iodine, thiocyanate and thiosulfate.1624) Using Nickel as a Catalyst in Ammonium Thiosulfate Leaching for Gold Extraction 517.

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  • Alternative lixiviants to cyanide for leaching gold ores

    4. HALIDE LEACHING Chlorine, bromine and iodine are well known lixiviants for leaching gold, as recently reviewed by Tran et al. (2001). Chlorination was applied extensively in the late 19th century before the introduction of the cyanidation process. Bromine/bromide for leaching gold from ores was reported as early as 1846.

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  • CA1340169C patents.google

    An aqueous composition adapted for dilution to provide a leaching solution effective for leaching of a precious metal comprising gold or silver from a source thereof. The composition comprises bromide ion, perbromide ion, molecular bromine, at least about 2% by weight bromate ion, and a metal ion selected from among alkali metal and alkaline earth metal.

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  • Refractory concentrate gold leaching Cyanide vs. bromine

    Gold extraction, recovery and economics for two refractory concentrates were investigated using cyanide and bromine reagents. Gold extractions for cyanide leaching (2448 hours) and bromine leaching (six hours) were the same and ranged from 94 to 96%.

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  • how to recover gold from ssn leach liqour Solution for

    SSN, Aqua Regia, Bromide, or any other leach. Recover the GOLD as .99 fine metal Au o. Not precipitates Patent 4528166. Leaching of Gold DocCopper Copper, Gold and Lighthouses Posts Related to how to recover gold from ssn leach liqour. carbon in leach process for gold

    Live Chat
  • Dissolution of gold in oxidized bromide solutions

    Using the rotating disc technique, the effects of rotating speed, leaching time, temperature, oxidant concentrations, used together or separately, in an aqueous bromide solution with different concentrations of this complexant were evaluated. Ferric ion alone is able to dissolve gold

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