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Arsenic Zinc Sulfide Concentrate

2019-02-20T19:02:52+00:00
  • Global High-Arsenic Copper Sulfide Concentrate Market Set

    The High-Arsenic Copper Sulfide Concentrate market dossier will provide you an assessment of the existing market opportunities in various regions and will also evaluate the market shares in terms ...

  • Bioleaching of Non-Ferrous Metals from Arsenic-Bearing ...

    Tank bioleaching of substandard arsenic-bearing sulfide copper–zinc concentrate, containing 1.70, 6.22, and 7.30% of arsenic, copper, and zinc, was performed. The concentrate contained pyrite, chalcopyrite, tennantite, and sphalerite. Bioleaching was performed at 40°C using a mixed culture of acidophilic microorganisms in two modes. In the first mode, pulp density was 10%, while in the ...

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  • ISO 13547-2:2014(en), Copper, lead, zinc and nickel ...

    Copper, lead, zinc and nickel sulfide concentrates ? Determination of arsenic ? Part 2: Acid digestion and inductively coupled plasma atomic emission spectrometric method. Buy. Follow. Table of contents. Foreword. 1 Scope. 2 Normative references . 3 Principle. 4 Reagents. 5 Apparatus. 6 Sampling and sample preparation. 6.1 Laboratory sample. 6.2 Test sample. 6.3 Test portion. 7 Procedure. 7.1 ...

  • Zinc Sulfide - an overview ScienceDirect Topics

    1 Recovery from Zinc Sulfide Concentrates During roasting of zinc sulfide concentrates in fluidized beds, the flue dust will be enriched in cadmium, indium, and thallium, but the bulk of these metals remain in the calcine. That is why the dust is added to the calcine during processing.

  • Understanding Stress Response to High-Arsenic Gold-Bearing ...

    The sulfide concentrate used in this study was characterized by a high content of As (19.1 wt%), as well as the presence of Zn, which also contributed to the toxic effect on the bacterial cells. During biooxidation of the sulfide ore concentrate, ferrous iron, arsenic, and zinc were gradually released from the solids into the medium (Table 1).

  • Author: Anna Panyushkina, Daria Matyushkina, Olga Pobeguts
  • ISO - ISO 13547-2:2014 - Copper, lead, zinc and nickel ...

    Copper, lead, zinc and nickel sulfide concentrates — Determination of arsenic — Part 2: Acid digestion and inductively coupled plasma atomic emission spectrometric method This standard was last reviewed and confirmed in 2020. Therefore this version remains current.

  • Arsenic Scientific.Net

    Abstract: Tank bioleaching of substandard arsenic-bearing sulfide copper–zinc concentrate, containing 1.70, 6.22, and 7.30% of arsenic, copper, and zinc, was performed. The concentrate contained pyrite, chalcopyrite, tennantite, and sphalerite. Bioleaching was performed at 40°C using a mixed culture of acidophilic microorganisms in two modes.

  • ARSENIC CONTENT IN THE LEAD FLOTATION CONCENTRATE IN ...

    Arsenic is considered as a harmful el- ement in selective concentrates of lead and zinc [1,2]. The llowable arsenic con- tent in these concentrates is expressed in tenth parts of a percent. One of the most important arsenic minerals is arsenopyrite (FeAsS) which is often major gangue mineral in base metal- lic sulfide ores.

  • Zinc - Wikipedia

    Sphalerite, which is a form of zinc sulfide, is the most heavily mined zinc-containing ore because its concentrate contains 60–62% zinc. Other source minerals for zinc include smithsonite (zinc carbonate), hemimorphite (zinc silicate), wurtzite (another zinc sulfide),

  • Group: group 12
  • Copper extraction - Wikipedia

    The sulfide concentrates are typically smelted in such furnaces as the Outokumpu or Inco flash furnace or the ISASMELT furnace to produce matte, which must be converted and refined to produce anode copper. Finally, the final refining process is electrolysis.

  • Understanding Stress Response to High-Arsenic Gold-Bearing ...

    The sulfide concentrate used in this study was characterized by a high content of As (19.1 wt%), as well as the presence of Zn, which also contributed to the toxic effect on the bacterial cells. During biooxidation of the sulfide ore concentrate, ferrous iron, arsenic, and zinc were gradually released from the solids into the medium .

  • Reduction of arsenic content in a complex galena ...

    Arsenic is a major impurity present in numerous sulfide deposits. The presence of arsenic in mineral concentrates drastically diminishes their value, and results in two types of problems. On one hand, arsenic produces metallurgical problems, making difficult the metal extraction and the recovery of a final product of high purity. On the other hand, arsenic is regarded as a highly toxic ...

  • Location: 8600 Rockville Pike, Bethesda, MD
  • Arsenic Scientific.Net

    Abstract: Tank bioleaching of substandard arsenic-bearing sulfide copper–zinc concentrate, containing 1.70, 6.22, and 7.30% of arsenic, copper, and zinc, was performed. The concentrate contained pyrite, chalcopyrite, tennantite, and sphalerite. Bioleaching was performed at 40°C using a mixed culture of acidophilic microorganisms in two modes. In the first mode, pulp density was 10%, while ...

  • Recovery of copper and silver from sulfide concentrates

    A process for recovering copper and silver from complex sulfide ores or concentrates containing copper, zinc, silver, lead, arsenic, antimony and iron comprising (1) treating a slurry of the ore or concentrate in an aqueous solution of ferrous chloride with gaseous oxygen at a temperature of about 100° to 115°C and a pressure of about 20 to 80 psig for a time sufficient to solubilize copper ...

  • Global High-Arsenic Copper Sulfide Concentrate Industry ...

    Based on the High-Arsenic Copper Sulfide Concentrate industrial chain, this report mainly elaborate the definition, types, applications and major players of High-Arsenic Copper Sulfide Concentrate market in details. Deep analysis about market status (2012-2017), enterprise competition pattern, advantages and disadvantages of enterprise Products, industry development trends (2017-2022 ...

  • As2S3 Arsenic Sulfide Powder-graphene,molybdenum disulfide ...

    English name: Arsenic (II) sulfide English alias: Arsenic Disulfide; Arsenic monosulfide; C.I. 77085; Arsenic monosulfide; dithioxodiarsane Arsenic Sulfide CAS: 1303-32-8 Arsenic Sulfide Molecular formula: As2S3 Arsenic Sulfide Molecular weight: 244.04 Ar

  • THE ALKALINE SULFIDE HYDROMETALLURGICAL SEPARATION ...

    The Southern African Institute of Mining and Metallurgy Lead and Zinc 2008 C G Anderson and L G Twidwell Page 121 THE ALKALINE SULFIDE HYDROMETALLURGICAL SEPARATION, RECOVERY AND FIXATION OF TIN, ARSENIC, ANTIMONY, MERCURY AND GOLD C.G. Anderson and L.G. Twidwell Center for Advanced Mineral and Metallurgical Processing Montana Tech of the University of

  • US3911078A - Method for removing arsenic and antimony from ...

    Method for removing essentially all of the chemically bonded arsenic and antimony from copper sulfide ores. The arsenic and antimony are selectively leached out using Na2S in a basic solution. The resulting Na3AsS4 and Na3SbS4 are converted to the sulfides or to ferric arsenate and ferric antimonate for safe disposal. Sodium and sulfur values are recovered for recycling in the process.

  • Behavior of arsenic in hydrometallurgical zinc production ...

    The presence of arsenic in zinc sulphide concentrates is particularly harmful, because it creates problems in zinc electrolysis. The main source of arsenic in non-ferrous metallurgy is arsenopyrite (FeAsS). In oxidative roasting of zinc concentrates, FeAsS oxidizes to arsenic oxides (As 2 O 3, As 2 O 5). In this connection a natural FeAsS was examined, and also the distribution of arsenic in ...

  • Zinc: smelting, producing and classification-Metalpedia

    Zinc smelting is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. The most common zinc concentrate processed is zinc sulfide, which is obtained by concentrating sphalerite using the froth flotation method. Secondary (recycled) zinc material, such as zinc oxide, is also processed with the zinc sulfide. Approximately 30% of all zinc produced is from recycled ...

  • An effective separation process of arsenic, lead, and zinc ...

    The separation behaviors and optimum conditions for alkali leaching of arsenic and sulfide precipitation of lead and zinc were established respectively as follows: NaOH concentration 3.81 M; temperature 80°C; time 90 minutes; liquid-to-solid ratio 4:1; agitation speed 450 revolutions/minute (r/min) and 2.0 times of theoretical quantity of sodium sulfide (Na 2 S); temperature 70°C; and time ...

  • ISO 13547-1 : 2014 COPPER, LEAD, ZINC AND NICKEL SULFIDE ...

    Defines an iron hydroxide concentration and inductively coupled plasma atomic emission spectrometric (ICP-AES) method for the determination of the mass fraction of arsenic in copper, lead, zinc, and nickel sulfide concentrates as follows: a)for copper sulfide concentrates, the method is applicable to the determination of mass fractions of arsenic from 0,05% to 2,0%; b)for lead sulfide ...

  • As2S3 Arsenic Sulfide Powder-graphene,molybdenum disulfide ...

    English name: Arsenic (II) sulfide English alias: Arsenic Disulfide; Arsenic monosulfide; C.I. 77085; Arsenic monosulfide; dithioxodiarsane Arsenic Sulfide CAS: 1303-32-8 Arsenic Sulfide Molecular formula: As2S3 Arsenic Sulfide Molecular weight: 244.04 Ar

  • Global High-Arsenic Copper Sulfide Concentrate Industry ...

    Based on the High-Arsenic Copper Sulfide Concentrate industrial chain, this report mainly elaborate the definition, types, applications and major players of High-Arsenic Copper Sulfide Concentrate market in details. Deep analysis about market status (2012-2017), enterprise competition pattern, advantages and disadvantages of enterprise Products, industry development trends (2017-2022 ...

  • Behavior of arsenic in hydrometallurgical zinc production ...

    The presence of arsenic in zinc sulphide concentrates is particularly harmful, because it creates problems in zinc electrolysis. The main source of arsenic in non-ferrous metallurgy is arsenopyrite (FeAsS). In oxidative roasting of zinc concentrates, FeAsS oxidizes to arsenic oxides (As 2 O 3, As 2 O 5). In this connection a natural FeAsS was examined, and also the distribution of arsenic in ...

  • US3911078A - Method for removing arsenic and antimony from ...

    Method for removing essentially all of the chemically bonded arsenic and antimony from copper sulfide ores. The arsenic and antimony are selectively leached out using Na2S in a basic solution. The resulting Na3AsS4 and Na3SbS4 are converted to the sulfides or to ferric arsenate and ferric antimonate for safe disposal. Sodium and sulfur values are recovered for recycling in the process.

  • Hydrometallurgical considerations in processing arsenic ...

    Increasing arsenic in copper concentrates has been a concern in the mining industry for decades as evidenced by organized symposia on the topic (CIM/COM, 2014; TMS 2005; TMS-AIME, 1988). The amount of arsenic which can be processed by smelters is constrained by technical limitations and ever tightening environmental, health and safety restrictions. Moreover, a recent ban on importing copper ...

  • KR101449214B1 - Method for removing and recovering arsenic ...

    A method for removing and recovering arsenic from a gold concentrate by pyrolysis is provided. The method comprises the steps of: pyrolyzing a powdered gold concentrate at a temperature above the sublimation point of arsenic contained in the gold concentrate in an inert gas atmosphere; and filtering the exhaust gas produced by the pyrolysis to collect arsenic And collecting.

  • OUTOTEC ROASTING SOLUTIONS

    • Arsenic elimination from concentrate: 12% to < 0.3% • Antimony elimination from concentrate: 1.2% to < 0.2% • Feed material capacity of up to 600,000 metric tons per annum BENEFITS • Sulfuric acid production • Ability to process and upgrade lower-quality ores • Recovery of valuable metals such as antimony. DEAD ROASTING FOR ZINC SULFIDE, PYRITE, AND GOLD-BEARING SULFIDE

  • Effect of iron impurity in zinc sulfide concentrates on ...

    Abstract The rate of dissolution of sphalerite is shown to be directly proportional to the concentration of substitutional iron impurity in the solid. This is attributed to the formation of a narro...

  • 2ZnS 3O 2ZnO SO2 (1)

    Roasting is a high-temperature process that converts zinc sulfide concentrate to an impure zinc oxide called calcine. Roaster types include multiple-hearth, suspension, or fluidized bed. The following reactions occur during roasting: 2ZnS 3O2 → 2ZnO SO2 (1) 2SO2 O2 → 2SO3 (2) In a multiple-hearth roaster, the concentrate drops through a series of 9 or more hearths stacked inside a brick ...

  • ISO 13547-1 : 2014 COPPER, LEAD, ZINC AND NICKEL SULFIDE ...

    Defines an iron hydroxide concentration and inductively coupled plasma atomic emission spectrometric (ICP-AES) method for the determination of the mass fraction of arsenic in copper, lead, zinc, and nickel sulfide concentrates as follows: a)for copper sulfide concentrates, the method is applicable to the determination of mass fractions of arsenic from 0,05% to 2,0%; b)for lead sulfide ...

  • Global High-Arsenic Copper Sulfide Concentrate Industry ...

    Based on the High-Arsenic Copper Sulfide Concentrate industrial chain, this report mainly elaborate the definition, types, applications and major players of High-Arsenic Copper Sulfide Concentrate market in details. Deep analysis about market status (2012-2017), enterprise competition pattern, advantages and disadvantages of enterprise Products, industry development trends (2017-2022 ...

  • Removal of Arsenic from Tin concentrates - Froth Flotation ...

    To participate in the 911Metallurgist Forums, be sure to JOIN LOGIN Use Add New Topic to ask a New Question/Discussion about Flotation. OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. Use Add Comment = to comment on someone else’s ...

  • Global High-Arsenic Copper Sulfide Concentrate Market ...

    The global level revenue developed for high-arsenic copper sulfide concentrate market in 2019 was evaluated around USD 1.10 billion and it is projected to reach USD 1.40 billion by 2025 at a CAGR around 3.5%. On the basis of the industrial chain of high arsenic copper sulfide market, the report delivers the conceptual analysis for the segmented categories of the market. In-depth market ...

  • Remediation of arsenic and lead with nanocrystalline zinc ...

    2012-06-28  The nanocrystalline zinc sulfide was extremely successful for the removal of arsenic and lead from simulated oil sand tailing pond water. Export citation and abstract BibTeX RIS. 1. Introduction. There are many areas in the world where the drinking water supply contains unsafe arsenic concentrations [1–6]. In fact, it has been claimed that arsenic contamination in groundwater in

  • Autoclaved Oxidation Leaching of Sulfide Concentrate ...

    2019-11-20  Autoclaved Oxidation Leaching of Sulfide Concentrate Containing - Gold Arsenic (I) Recovery of gold from concentrate containing arsenic is the most complex problem. This is the root cause intractable concentrate: gold was present in a state disseminated sulphide (pyrite arsenic and pyrite) and, as well as capable of adsorbing gold cyanide solution in the presence of certain active concentrate ...

  • KR101449214B1 - Method for removing and recovering arsenic ...

    A method for removing and recovering arsenic from a gold concentrate by pyrolysis is provided. The method comprises the steps of: pyrolyzing a powdered gold concentrate at a temperature above the sublimation point of arsenic contained in the gold concentrate in an inert gas atmosphere; and filtering the exhaust gas produced by the pyrolysis to collect arsenic And collecting.

  • Volatilization Behavior and Mechanisms of Arsenic, Sulfur ...

    G. Gao, D. Li, Y. Zhou and X. Sun, “Kinetics of high-sulphur and high-arsenic refractory gold concentrate oxidation by dilute nitric acid under mild conditions”, Minerals Engineering, 22(2009), 111–115 CrossRef Google Scholar

  • Treatment of Arsenic in copper smelting

    As is mainly present as sulfides in concentrates, and is dispersed in dust, slag, anode mud and sulfuric acid with distribution closely related to the smelting process. Finally, it is enriched in by-products of various metallurgical processes, including white ash, anode slime, arsenic sulfide residue, contaminated acid and so on, or cyclically accumulated in the system. Chinese Standard of ...

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