flotation reagents sulfide

Handbook of Flotation Reagents - ScienceDirect

Chemistry, Theory and Practice Flotation of Sulfide Ores ... Handbook of Flotation Reagents: Chemistry, Theory and Practice is a condensed form of the fundamental knowledge of chemical reagents commonly used in flotation and is addressed to the ... 2) describes theoretical aspects of the action of flotation reagents

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Evaluation of flotation collectors for copper sulfides and pyrite, I ...

P.K. Ackerman, G.H. Harris, R.R. Klimpel, F.F. AplanThe importance of reagent purity in the evaluation of flotation collectors. Trans. I.M.M., 95 (1986), pp. C165-C168. Allison et al., 1972. S.A. Allison, L.A. Goold, M.J. Nicol, A. GranvilleA determination of the products of reaction between various sulfide minerals and aqueous...

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Flotation Reagents - 911 Metallurgist

Jun 8, 2016 ... This data on chemicals, and mixtures of chemicals in froth flotation with some of the more common flotation reagents and their uses.

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Flotation Behavior of Complex Sulfide Ores in the Presence of ...

May 14, 2017 ... In sulfide mineral flotation, Polymers have been used as potential candidates to replace hazardous reagents. Polyacrylamide polymers (PAMs) with different functional groups exhibited depressing ability for ferrous sulfide minerals such as pyrite [4]. Recently a biodegradable polymer chitosan has also...

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Synergistic interactions between reagents in sulphide flotation

Synergistic interactions between reagents in sulphide flotation explain the synergism observed when mixtures of thiol collectors are used in the flotation of pyrite. This represents a typical sulphide mineral flotation system and will serve to highlight how the various sub-processes of flotation may be influenced in a synergistic...

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Flotation Collectors | CYTEC SOLVAY GROUP

AEROPHINE®, AERO® and AEROFLOAT® collectors (promoters) are used extensively for the flotation of sulfide minerals including copper, gold, lead, zinc, nickel, ... by taking into consideration the dynamic interaction of the ore body and plant characteristics with the chemicals including collectors in the flotation process.

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High-performance reagent modes for flotation recovery ... - IOPscience

PAPER • OPEN ACCESS. High-performance reagent modes for flotation recovery of platiniferous copper and nickel sulfides from hard-to-beneficiate ores. To cite this article: T N Matveeva and V A Chanturiya 2017 J. Phys.: Conf. Ser. 879 012015. View the article online for updates and enhancements. Related content.

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Handbook of Flotation Reagents: Chemistry, Theory ... - Google Books

Feb 19, 2007 ... Looks at the theoretical aspects of flotation reagents* Examines the practical aspects of using chemical reagents in operating plants* Provides guidelines for researchers and engineers involved in ... Handbook of Flotation Reagents: Chemistry, Theory and Practice: Volume 1: Flotation of Sulfide Ores.

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Flotation Chemicals - Moly-Cop

Moly-Cop provides a wide range of solutions to assist our customers to optimize their flotation processes. Our range provides flotation solutions for sulfide and non-sulfide minerals as well as non-metallic ore processing. Moly-Cop both distributes and manufactures a wide range of flotation chemicals and related auxiliary...

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Examining the Effects of Typical Reagents for Sulfide Flotation on ...

Mineral separation by froth flotation is widely used around the world for the beneficiation of sulfide ores. Flotation products (typically concentrate) are subjected to metallurgical processes for metal extractions. Bioleaching as a metallurgical procedure indicated many advantages over other traditional techniques (pyro- and...

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Effect of Flotation Reagents on the Activity of L. Ferrooxidans ...

Froth flotation is the most preferred processing technique for the enrichment of low-grade sulfides. Bioleaching is an eco-friendly method for metallurgical extraction from flotation products. Flotation reagents (collectors, frothers, etc.) have various impacts on bioleaching and bacterial activities. In this investigation, the effect of...

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Optimization of Cu–Zn Massive Sulphide Flotation by Selective ...

Dec 20, 2017 ... Selective floatation of base metal sulphide minerals can be achieved by using selective reagents. Sequential floatation of chalcopyrite–sphalerite from Taknar (Iran) massive sulphide ore with 3.5 % Zn and 1.26 % Cu was studied. D-optimal design of response surface methodology was used. Four mixed...

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The use of seawater as process water in concentrating plant ... - Jultika

1-13. BULATOVIC, S.M., 2007. Handbook of Flotation Reagents. Elsevier Science &. Technology Books. ISBN 0444530290. BURN, A. K., 1930. The flotation of chalcopyrite in seawater. Bulletin Institution of. Mining and Metallurgy, Nº. CASTRO, S., 2012. Challenges in flotation of Cu-Mo sulfide ores in sea water, Water in.

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Flotation - EdRockMan IV LLC​

-Frother chemistry impact on hydrodynamics, flotation kinetics -Sulfide mineral chemicals -Impact of water chemistry parameters on flotation 5) Module 5: Flotation Frothers -What frothers actually do at bubble surface -Frothers drive kinetics, recoveries -Differences between weak and strong frothers -Fine and coarse particle...

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Froth flotation - Wikipedia

Initially, naturally occurring chemicals such as fatty acids and oils were used as flotation reagents in a large quantity to increase the hydrophobicity of the valuable minerals. Since then, the process has been adapted and applied to a wide variety of materials to be separated, and additional collector agents, including...

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Process optimisation | Metallurgy & Mineral Processing | SRK News

All copper sulfides are processed through flotation using xanthates at 6-12 pH. When pH values are lower, it is better to use aeroflot-type reagents instead of xanthogenates. If molybdenite flotation is required to separate it from copper sulfides, the pH should be no more than 11 to provide pyrite depression, and lime is...

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US6827220B1 - Flotation of sulfide mineral species with oils - Google

These common commercial promoters are usually separated into two classes of chemicals based on their water solubility. Water soluble sulfur containing collectors, or promoters, used in the froth flotation of sulfide minerals include such well-known collectors as xanthates and dithiophosphates. These are usually used as...

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Flotation of mixed copper oxide and sulphide minerals ... - Axis House

The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is currently investigating options to recover copper oxide and sulphide minerals using flotation by blending their primary sulphide ore with oxide ores. The blend used in...

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Froth flotation of Aljustrel sulphide complex ore

Dec 16, 2016 ... complex sulphide ores. A useful contribute was given to a better technical understanding of flotation of a complex sulphide ore from the Moinho deposit. Keywords: froth flotation, mineral liberation, flotation reagents, complex sulphide ore. Introduction. Flotation can be defined as a physical-chemical process...

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Effect of desXinhai on the flotation of a complax copper ore from China

and mica, which may easy to over-grind and deteriorate the flotation process either on reagents consumption or slurry fluidity or viscosity. A hydro-cyclone had been introduced to pre-concentrate the oxide ore by scrubbing the slime before flotation, which can result obviously in reducing the dosages of sodium sulfide from...

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Flotation and Adsorption of a New Polysaccharide ... - MDPI

Mar 16, 2017 ... Abstract: The flotation and adsorption of a new polysaccharide konjac gum (KG) on pyrite and talc ... depressant will adsorb on the metal sulfide minerals and affect the adsorption of collectors [8]. Thus, ... Multipurpose Utilization of Mineral Resources Flotation Reagents Limited Company, Chengdu,. China.

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Role of surface chemistry of fine sulphides in their flotation P ...

flotation of sulphides, fines that are heavily oxidized are not floated with conventional reagents. 0.04. 0.02. Oxygen and native floatability. 0.01. Ec. 0.001. The role of oxygen and oxidation has been the subject of much controversy for decades. As early as the 1930S. although a number of scientists considered sulphides to.

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US6827220B1 - Flotation of sulfide mineral species with oils - Google

These common commercial promoters are usually separated into two classes of chemicals based on their water solubility. Water soluble sulfur containing collectors, or promoters, used in the froth flotation of sulfide minerals include such well-known collectors as xanthates and dithiophosphates. These are usually used as...

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Beneficiation of arsenic bearing complex sulphide ore by flotation

In flotation tests, non-toxic reagents such as metabisulphite, caustified starch, and activated carbon were used to depress minerals in relevant circuits. Key words: arsenic, non-toxic depressants, sulphide minerals, flotation. Introduction. The treatment processes for the beneficiation of copper-lead-zinc ores are generally.

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An improved flotation test method and pyrite depression by an ...

Rougher flotation of copper-molybdenum sulphide ores in seawater was investigated using two different cells: a modified Denver cell and a standard commercial cell. The effect of an organic reagent on the flotation performance was tested, and the fast/slow-floating model was used to describe the results. The modified...

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Introduction to Mineral Processing - Chevron Phillips Chemical

Sulfide and non-sulfide minerals as well as native metals are recovered by froth flotation. This process is based on the ability of certain chemicals to modify the surface properties of the mineral(s). Other chemicals are used to generate the froth and still others are used to adjust the pH. Certain chemicals are even capable of...

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lead and zinc ores: flotation - Semantic Scholar

Rinelli et al., Usoni et al., Barbaro et al., Somasun- daran) and a review on this topic has been published by Pradip (Pradip 1988). Use of reagents of chelate type offers the possibility of improving selectivity in the flotation separation of complex sulfide minerals. (Marbini et al. 1990 and 1991). Oxidized Zn and Pb Minerals.

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dextrins as selective flotation depressants for sulfide minerals

were tested as flotation depressants of galena and chalcocite in a Hallimond cell with xanthate to make the ... flotation. It is known that dextrins depress, to a different extend flotation of a number of minerals including sulfides, which are present in the Kupferschiefer Cu-Ag ore ... were used in the test as modifying reagents.

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Biogenic Sulphide Reagent in Hydrometallurgy - SGS

Sulphide reagents are widely used in mineral processing and hydrometallurgical operations. The use of sodium hydrosulphide, NaHS, to provide conditions in which molybdenum sulphide can be separated from copper sulphides is common practice in flotation. The same reagent is also sometimes used in water treatment.

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Effect of three typical sulfide mineral flotation collectors on soil ...

Keywords Flotation collectors . Soil . Microcalorimetry . Microbial activity . Butyl xanthate . Butyl dithiophosphate . Sodium diethyldithiocarbamate. Introduction. Metal ores are usually mixtures of valuable minerals and other useless minerals. To recover and process the target minerals, sulfide mineral flotation reagents were...

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Sodium Hydrosulfide (NaSH)-An Alternative to Sulfur Production ...

May 18, 2017 ... Sodium hydrosulfide (NaSH) is a chemical reagent with numerous applications within predominately three (3) industries: Kraft Paper Milling. ... The process feeds the Cu Sulfide concentrate produced through flotation and applies a reverse flotation circuit to separate the Moly sulfide from Copper sulfides.

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mining - Danafloat

utilizing pulp preaeration which can cause oxidation on more reactive mineral sulphide surfaces making them less floatable; of course the effectiveness of this technique is dependent on the mineralization and circuit characteristics. Standard copper sulphide flotation collector reagents are sulfur based thiol class collectors...

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recovery of sulphides as byproducts from a gold flotation ... - Cetem

performance of reagent systems for the selective floatation of sulphides (copper, pyrite, zinc and lead) from concentrates collected in the new plant at Kinross. Paracatu. Over the last few years, many studies have been conducted using chelate reagents for sulphide floatation, although xanthates are still commonly used as.

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Kinetic Studies of Sulfide Mineral Oxidation and Xanthate Adsorption

Sulfide minerals are a major source of metals; however, certain sulfide minerals, such as pyrite and pyrrhotite, are less desirable. Froth flotation is a commonly used separation technique, which requires the use of several reagents to float and depress different sulfide minerals. Xanthate, a thiol collector, has gained immense...

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Axis House - Mining Technology

Axis House produces, stocks, delivers and finances a full range of mining reagents, with a focus on developing, optimising and implementing copper sulphide and oxide flotation reagents. With a strong logistics division, Axis House also allows for the direct supply of products from the factory or regional warehouses where...

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Flotation | Mining | Dow Oil, Gas & Mining - Dow Chemical

Dow offers flotation solutions for sulfide and non-sulfide minerals and non-metallic ores, including coal, to help mining operators improve recovery and operating efficiency by optimizing their froth flotation processes.

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Investigation of Flotation Parameters for Copper Recovery from ...

Feb 22, 2012 ... pH regulators, and sodium hydrosulfide (NaHS) and sodium sulfite (Na2SO3) were used as depressants for chalcopyrite and pyrite respectively. All chemicals were of reagent grade supplied by Nacalai Tesque and Kanto Chemical Co., Japan. 2.3 Flotation. 2.3.1 Procedure. Laboratory flotation experiments...

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Investigations into the Recovery of Platinum Group Minerals from the ...

In the flotation of platinum group minerals (PGMs) it has generally been assumed that they will behave similarly to base metal sulfides and thus sulfide reagent regimes are generally used in such flotation plants. However the tellurides and arsenides of platinum and palladium contribute about 50% of the PGMs present in...

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Examination of Flotation Reagents Suitable for Nickel ... - UJContent

Abstract. Examination of flotation reagents suitable for a nickel concentrator plant was investigated using nickel sulphide ore. A number of different new reagents were examined for the best suit for the nickel concentrator plant. It was found that more nickel was found on the magnetic particles, which were assumed.

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Flotation of low-grade gold ores - Research Collection

55 a) Metallurgical calculations. 55 b) Assay for gold. 56 c) Flotation reagents. 58 d) Flotation tests. 58. 5. Discussion of factors considered in flotation tests. 70. 6. ..... sulphide ore bodies, and the percentage of the total gold which could be recovered from these ores by amalgamation dropped seriously. In fact, it is not an.

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