flotation seperation of sulfur from sulfide

Removal of arsenopyrite from complex sulfide minerals by ...

In the ZnS flotation, the maximum separation achievable for ZnS using froth flotation has been shown to be a grade of 72.57% and a recovery of 95.43%. At this time, FeAsS removal of 87.8% (0.16% As) could be successfully accomplished under pH 11, and 800g/t Zn activator (CuSO4), 75g/t frother (AF65), 60g/t collector (AP211) and 600g/t As ...

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Hydrothermal Sulfidation and Flotation of Oxidized Zinc ...

 · The sample with smithsonite and cerussite as the main valuable metal minerals is a carbonate-hosted lead-zinc ore in the current study. Hydrothermal sulfidation of oxidized zinc-lead ore was carried out with a particle size of 74 to 58 μm and the mole ratio of sulfur and zinc of 2.0 at 453 K (180 °C) for 240 minutes, and 73 pct zinc and 86 pct lead sulfidation fraction were achieved.

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Differential froth flotation of sulfide ores

Talc and mica also are often present in sulfide concentrates and a high degree of removal is economically desirable. However, the problem of separation by flotation is greatly complicated in the case of such concentrates because they usually contain the residue of the sulfide flotation collectors used in floating concentrates.

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Characterization and Flotation of Sulfur from Chalcopyrite ...

Elemental sulfur produced by chloride leaching of sulfide ores or concentrates contains selenium and tellurium usually too high to be used in various industrial or agricultural uses. The sulfur in the leaching residue can be upgraded to 90% in grade by froth flotation and the sulfur concentration can be followed by sulfur purification and selenium and tellurium removal.

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EXTRACTING METALS FROM SULFIDE ORES

The sulfur dioxide needs to be captured for air-quality reasons and is converted into sulfuric acid. Treatment of sulfide mineral flotation concentrates can also be carried out using hydrometallurgy, in which process the metal sulfide is dissolved (leached) into an aqueous solution. Some processes involve both smelting and leaching steps.

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SEPARATION OF MOLYBDENUM SULFIDE FROM COPPER SULFIDE …

Molybdenum sulfide is separated from a molybdenite-containing copper ore concentrate by subjecting an aqueous pulp of the concentrate to froth flotation in the presence of a collector for molybdenum sulfide and a Nokes-type (e.g., arsenic trioxide/sodium sulfide) depressant for copper sulfide, the aqueous pulp being aerated with an inert gas to effect flotation of the molybdenum sulfide ...

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Process of removing sulfur from magnetite concentrates via ...

1. The flotation method of allocation of iron sulphides of magnetite concentrate and magnetizacijas the products, including grinding, conditioning with acid, ionic sulfur-containing collector, the reactant-modifier and flotation with the release of sulfides in the foam product, characterized in that as a reactant-modifier is based composition isoalantolactone alcohols C 8-C 10 the General ...

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5 Flotation Processes Used to the Extraction of Lead-Zinc ...

 · The iso-flotation process used to the extraction of lead-zinc sulfide ores has the characteristics of both mixed flotation process and priority flotation process, which can reduce the reagent dosage, eliminate the negative impacts of reagents on the flotation separation and improve the advantages of the mineral processing index.

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Method for separation of elemental sulphur and sulphide ...

When the temperature is raised to 145°C in the liquid phase appears sulfide ion (op. D4-7) in the amount of ~1.6 to 6 g/L. the Presence of sulfide ion leads to wetting of the surface of the solution sulphides and, consequently, to the subsequent flotation separation from them of elemental sulfur.

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How is sulfur extracted from its ores?

sometimes it just scoped up from the ground, around volcano''s. > Natural occurrence Sulfur vat from which railroad cars are loaded, Freeport Sulphur Co., Hoskins Mound, Texas (1943) sulfur compounds deposited by active volcanoes. A man carrying su...

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Flotation extraction of elemental sulfur from gold-bearing ...

The main objective of the study is to justify the possibility of using flotation separation of elemental sulfur from autoclave cakes of low-temperature leaching of pyrite concentrate for more complete extraction of gold into solution. The purpose of the flotation process is to recover gold and obtain tailings for elemental sulfur content, which ...

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Pyrite depressant useful in floation separation ...

 · The present invention relates to a process for separating pyrite from sulfide ores and coal during flotation separation which comprises the depressing of pyrite with from about 0.05 to 0.75 kilograms per ton of concentrate solids, using a pyrite depressant compounds selected from the group consisting of R1--S (CH 2 '') n PO (OH) 2 (I) where.

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Separation and enrichment of elemental sulfur and mercury ...

Abstract: The separation and enrichment of mercury and the recovery of elemental sulfur from flotation sulfur concentrate in zinc pressure leaching process were carried out by sodium sulfide leaching and carbon dioxide precipitating. The results show that the

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Investigation of Flotation Separation of Elemental Sulfur ...

For the separation of lead sulphate from sulphur-sulfide concentrate was used in the granulation of sulfur in the following conditions: t = 145 °C, Po 2 = 0,0-0,5 MPa, τ = 60 to 120 min. In the granulation process of the flotation concentrate is a division of lead sulfate and elemental sulfur, the sulfate lead content in sulphur-sulfide phase ...

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Separation of elemental sulfur from hydrometallurgical ...

 · The generalized procedures currently used in the removal of sulfur from residues, particularly those produced via hydrometallurgical processing, fall into three categories: physical or mechanical separation by flotation, chemical alteration of sulfur hydrophobicity by sulfide addition, and extraction via supercritical H 2 O or CO 2. A ...

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The Determination of Sulfate and Sulfide Sulfur in Rocks ...

liberated. The sulfate sulfur is then measured indirectly by the determination of the barium and is therefore unaffected by any. subsequent oxidation of the sulfide sulfur. Total sulfur is determined on a separate sample, and sulfide sulfur is calculated by difference. INTRODUCTION

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Characterization and Flotation of Sulfur from Chalcopyrite ...

Characterization and Flotation of Sulfur from Chalcopyrite Concentrate Leaching Residue H. K. Lin Mineral Industry Research Laboratory University of Alaska Fairbanks, Fairbanks, AK 99775-7240 Elemental sulfur produced by chloride leaching of sulfide ores or concentrates contains selenium and tellurium usually too high to be used in

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A Desulfurization Flotation Approach for the Integrated ...

used as a proxy for a typical porphyry-type copper sulfide tailings. The ore had a sulfur and copper grade of 3.84 % and 0.16 %, respectively. Pyrite (7.03 %) and chalcopyrite (0.12 %) were the major sulfide minerals. Flotation was carried out in stages (maximum 4), using methyl isobutyl carbinol

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CN103157558A

The invention belongs to the field of mineral processing, relates to a beneficiation method, and particularly relates to a method of sorting copper sulfide ore flotation tailings. The method comprises the following steps: A, the tailings with copper and sulfur separated are dewatered through a thickener, wherein the content of the sulfur in the tailings is more than 20%, and the concentration ...

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Removing sulfur from coal by a combination of gravity and ...

OSTI.GOV Journal Article: Removing sulfur from coal by a combination of gravity and flotation methods Title: Removing sulfur from coal by a combination of gravity and flotation methods Full Record

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(PDF) Handbook of Flotation Reagents Chemistry, Theory and ...

Handbook of Flotation Reagents Chemistry, Theory and Practice: Flotation of Sulfide Ores. Serkan Gökçen. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 36 Full PDFs related to this paper. Read Paper.

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US Patent for Process for separating molybdenite from a ...

This invention relates to processes for selectively separating molybdenite from a molybdenite-containing copper sulfide concentrate by a flotation process wherein the molybdenite is selectively floated by the use of a sulfite or bisulfite compound as a copper sulfide depressant. Molybdenite commonly occurs in copper bearing ores.

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Chemical and colloidal aspects of collectorless flotation ...

Chemical and colloidal aspects of collectorless flotation behavior of sulfide and non-sulfide minerals. Aghazadeh S, Mousavinezhad SK, Gharabaghi M. Flotation has been widely used for separation of valuable minerals from gangues based on their surface characterizations and differences in hydrophobicity on mineral surfaces.

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Mining Industry | Copper Sulfide Ore and Flotation Process ...

 · 1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.

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Interfacial Chemistry of Particulate Flotation

separation of ions, micro flotation and ultraflotation for very fme particulates, and froth flotation for the separation of min-erals that possess mostly polar surfaces. In addition to these techniques, there are also certain nonfoaming flotation methods such as oil.flotation (2), bubble fractionation (3) and

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Flotation separation of carbonate from sulfide minerals, I ...

Due to the natural hydrophobicity of sulfide minerals, flotation separation is the best practical method to separate them from gangue minerals. ... In the process of flotation, sulfur was created ...

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Flotation Experiment Research on a Polymetallic Sulfide ...

sulfur but to improve the recovery of gold and silver when the pyrite content of the ore is low. Flotation separation of polymetallic sulfide ore is a very difficult process because of the complex mineral composition and closely related mineral paragenesis.

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The Effect of Regulators on Flotation Desulfurization of ...

Flotation of Chinese high sulfur bauxites for the purposes of desulfurization is more difficult than conventional sulfide flotation in that the finely disseminated sulfide content of these bauxites can lead to significant bubble inclusions and low separation efficiency. Acidification of

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Chemoadsorption for Separation of Hydrogen Sulfide from ...

 · In Eqs. 1 and 3, H 2 S is removed from the biogas under the formation of iron sulfide, which is subsequently converted back, leaving elemental sulfur on the surface of the porous metal alloy. If hydroxides are used, the re-formation of such hydroxides may occur under the appropriate process parameters, especially the availability of water.

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Method of floatation of sulfide copper minerals from ...

1. Method of flotation of sulphide minerals of copper from chalcopyrite-cubanito piratesnigerian copper-Nickel ores, including the crushing ore, the aeration of the pulp in the presence of sulfhydryl with the of irately, selective flotation of sulfide minerals of copper in the presence of a foaming agent with the release of the draft copper concentrate regrinding the latest and subsequent ...

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Role of Sodium Sulfide

 · Sodium sulfide is one of the most widely used alkali metal sulfides in the flotation of copper, lead, and zinc minerals in their oxidized form. The sulfidization process, developed in the U.S.A. in 1915-20 for oxide copper minerals flotation, is especially suitable for oxidized lead ores in which the gangue is usually basic.

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Feasibility Study of Differential Flotation of Cu–Pb–Zn ...

 · In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite, galena, cerussite, hemimorphite and iron oxide minerals with 5.04% CuO, 1.61% PbO, 2.07% ZnO and 56.40% SiO2. The experimental design methodology (RSM) was conducted to investigate the effect of ...

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Online analysis of minerals from sulfide ore using near ...

the mineral levels during enrichment processes. Froth flotation is a commonly used method for efficient separation of different minerals from finely grinded sulfide ore. The mineral level information is an important tool for the optimi-zation of flotation process parameters as it is uneconomical to make mineral

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Selective Flotation of Elemental Sulfur from Pressure Acid ...

An efficient flotation process was developed to selectively recover elemental sulfur from a high-sulfur pressure acid leaching residue of zinc sulfide concentrate. The process mineralogy analysis showed that the sulfur content reached 46.21%, and 81.97% of the sulfur existed as elemental sulfur …

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Froth Flotation Process Used in the Lead Zinc Sulfide Ore ...

 · The lead-zinc sulfide is often associated with a variety of valuable components, such as lead, zinc, copper, sulfur and other useful minerals, whose floatability is obviously different, which determines the different froth flotation process of lead and zinc sulfide ores. The common froth flotation process of sulfide ore mainly includes priority ...

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Flotation separation of carbonate from sulfide minerals, I ...

 · The conventional depressants for the sulfhydryl collector flotation of sulfide minerals, such as sodium sulfide, sodium cyanide, and sulfur dioxide, etc., were usually reducing agents and environmentally unfriendly, and were considered inappropriate (Nagaraj et al., 1985; Laskowski et al., 1993; Bulatovic and Wyslouzil, 1995; Liu and Zhang ...

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CN105080728A

The invention discloses a flotation separation method of antimony sulfide and gold-bearing pyrite. Sodium hexametaphosphate is adopted as a dispersing agent, sodium silicate is used as a silicon and calcium gangue inhibitor, copper sulfate is used as an antimony and gold mineral activating agent, butyl xanthate is used as a collecting agent, and No. 2 oil is used as a foaming agent, so that ...

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Sequential flotation of sulfide ores

A sequential flotation process for the recovery of high-grade concentrates of copper, lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO 2 as H 2 SO 3 under intense aeration, and the conditioned pulp subjected to sequential flotation, with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper.

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(PDF) Sulfide Mineral Flotation | Morgan Zhao

Sulfide Mineral Flotation Maurice C. Fuerstenau, Subhash Chander, and Ronald Woods INTRODUCTION Froth flotation was developed at the Broken Hill mine, Australia, a century ago with the flo- tation of the common sulfide mineral, sphalerite. With this development, billions of tons of worthless rock containing a variety of valuable metals became ore.

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