metal ions sulphide flotation

Open Access Challenges in Sulphide Mineral Processing
Open Access Challenges in Sulphide Mineral Processing

There are still persistent problems in sulphide flotation of metal sulphides selectivity against pyrite and among sul-phide minerals, inadvertent activation of silicate gangue by metal ions, hetero-coagulation between sulphide and gangue minerals and recovery of fine particl The solutions to the

Know More
Effect of pH on the Recovery and Grade of Base Metal ,
Effect of pH on the Recovery and Grade of Base Metal ,

Effect of pH on the Recovery and Grade of Base Metal Sulphides (PGMs) by Flotation , the cost of lime in sulphide minerals flotation is roughly double the amount of the collector used, , to flotation to precipitate heavy metal ions from solution In

Know More
(PDF) Review of the role of metal ions in mineral flotation
(PDF) Review of the role of metal ions in mineral flotation

PDF | The influence of metal ions on mineral flotation behavior and the underlying mechanisms were reviewed in this work The relative direct factors (the category, valence state and concentration .

Know More
Comprehensive evaluation on a prospective precipitation ,
Comprehensive evaluation on a prospective precipitation ,

Jun 05, 2019· The removal of metal ions and the absorbance of treated water were determined according to Eq (3) R f = (1-C f C 0) × 100 % where R f is flotation removal of metal ions; C 0 and C f is the concentration of metal ions in the original simulated ,

Know More
Mineralogy of Sulfides - Elements
Mineralogy of Sulfides - Elements

Metal sulfides are the most important group of ore minerals Here, we review what is known about their compositions, crystal structures, phase relations and paragenes Much less is known about their surface chemistry, their biogeochemistry, or the formation and behaviour of ‘nanoparticle’ sulfides, whether formed abiotically or biogenically

Know More
Synergistic interactions between reagents in sulphide ,
Synergistic interactions between reagents in sulphide ,

flotation of coal and graphite; cationic which are typically amine salts and used in the flotation of silicates and sulphides in alkaline conditions; and anionic which are used to float basic minerals such as metal oxides and sulphid Fatty acids are used for the flotation of non-sulphide minerals such as apatite, calcite, feldspar and hematite

Know More
Reexamining the functions of zinc sulfate as a selective ,
Reexamining the functions of zinc sulfate as a selective ,

Sep 15, 2006· Zinc sulfate is a well-known selective depressant for zinc sulfide minerals such as sphalerite during the flotation of complex Cu-Pb-Zn sulfide or It deactivates sphalerite flotation by substituting the activating metal ions, and depresses sphalerite flotation by forming hydrophilic coatings of zinc hydroxyl species on sphalerite surfac

Know More
metal ions sulphide flotation - studiareacremait
metal ions sulphide flotation - studiareacremait

Flotation Circuit Characterization In a flotation system, most sulphide minerals are thermodynamically unstable and undergo oxidation, which leads to the release of metal ions into the pulp The metal ions are potential determining ions; hence adsorption onto the surface of sulphides can change the zeta potential, which is related to flotation

Know More
Chapter 3 Effect of free cyanide on the activation and ,
Chapter 3 Effect of free cyanide on the activation and ,

zinc sulphide flotation are sodium cyanide and zinc sulphate Sodium cyanide is used at the Rosh Pinah Mine to suppress the flotation of sphalerite , combines with surface metal ions to prevent the formation of metal-xanthates; • Cyanide reduces the redox potential of the pulp and consumes oxygen in the

Know More
Chapter 8 Flotation of Non-Sulphide Minerals - Hacettepe
Chapter 8 Flotation of Non-Sulphide Minerals - Hacettepe

Activation of quartz by metal ions is a further example of hydroxy-complex formation The solubility of quartz is very limited and the only cation from the mineral is silicon Thus quartz activation for flotation by anionic collectors requires metal ions in the pH ranges in which they form hydroxy complex

Know More
Fluid Inclusion Effect in Flotation of Sulfide Minerals ,
Fluid Inclusion Effect in Flotation of Sulfide Minerals ,

Presents the absorption mechanism and interactions of some typical metal ions from fluid inclusions on the surface of sulfide minerals Readership Researchers in mineral processing and extractive metallurgy, and geology; Researchers in sulfide mineral flotation ,

Know More
Froth flotation - Wikipedia
Froth flotation - Wikipedia

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic This is used in mineral processing, paper recycling and waste-water treatment industri Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century

Know More
Various flotation techniques for metal ions removal ,
Various flotation techniques for metal ions removal ,

2 Ion and precipitate flotation Ion flotation involves the removal of surface-inactive ions from aqueous solutions by adding surfactants or collectors and the subsequent passage of gas bubbles through the solutions; the surfactant is usually an ion having a charge opposite to that of the metal ion ,

Know More
Mineralogy of Sulfides - Elements
Mineralogy of Sulfides - Elements

The SRP occur in anaerobic environments that include lakes, swamps, soils and marine sediments As part of their metabolic processes, these organisms reduce sulfate ions to sulfide which can react with any available dissolved metal ions to form highly insoluble sulfid

Know More
FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide ,
FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide ,

History of Sulphide ore flotation dates back to beginning of 20th century Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique This technology has acclaimed importance as a versatile process for

Know More
Role of Sodium Sulfide - Copper Lead & Zinc Ore Flotation
Role of Sodium Sulfide - Copper Lead & Zinc Ore Flotation

Table of ContentsChemistry of Sodium SulfideSulfidization Sodium Sulfide in Sulfide Minerals Flotation 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 USA in 1915-20 for oxide copper minerals flotation, is especially suitable for oxidized lead ores in .

Know More
Metal ion production and transfer between sulphide minerals
Metal ion production and transfer between sulphide minerals

Read "Metal ion production and transfer between sulphide minerals, Minerals Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips

Know More
SIMS Study of Metal Ion Activation in Gangue Flotation
SIMS Study of Metal Ion Activation in Gangue Flotation

Sulfide flotation pulps often contain significant amounts of many transition metal species such as those of copper because of a) a deliberate addition of copper sulfate to activate certain value sulfide minerals, b) release of copper ions from oxide copper minerals, or c) oxidation of copper sulfide minerals and the concomitant release of .

Know More
inorganic chemistry - Froth floatation process - why CuSO4 ,
inorganic chemistry - Froth floatation process - why CuSO4 ,

Also, the role of cyanide ions may be: Cyanide ($\ce{CN-}$) is a particularly useful depressant in sufide mineral flotation Its activity is believed to be due to its ability to complex with, and in some cases dissolve, a number of metal ions, preventing them from attaching to the xanthate molecul

Know More
The Practice Of Cassiterite Flotation In Bolivia
The Practice Of Cassiterite Flotation In Bolivia

One of the major problems in selective flotation of cassiterite is the presence of metal ions in solution, such as ea+2, Fe+2, Fe+3 These ions can act as activators for other minerals present in the ore In this way, for example, quartz and silicates can be floated along ,

Know More
Sulphide Flotation - an overview | ScienceDirect Topics
Sulphide Flotation - an overview | ScienceDirect Topics

The addition of sulfide ions can also bring about collectorless flotation (Yoon, 1981) Pyrrhotite is in effect a metal deficient iron sulfide (Pratt et al, 1994) and naturally has polysulfides on the surface and often exhibits collectorless flotation

Know More
Ion flotation for the recovery of the metals - European ,
Ion flotation for the recovery of the metals - European ,

Metal ions – forms of metals most often occurring in aqueous solutions or salts as cations with different charges, depending on the specific metal Ion flotation can be performed by using a surfactant in combination with a different molecule – called a chelating agent, which can form a complex with the metal ion by chemically binding to it .

Know More
EXTRACTING METALS FROM SULFIDE ORES - Electrochemical ,
EXTRACTING METALS FROM SULFIDE ORES - Electrochemical ,

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 This is the case, for example, in zinc sulfide processing

Know More
Sulfide - Wikipedia
Sulfide - Wikipedia

Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S 2− or a compound containing one or more S 2− ions Solutions of sulfide salts are corrosive Sulfide also refers to chemical compounds large families of inorganic and organic compounds, eg lead sulfide and dimethyl sulfide

Know More
Influence of water resources and metal ions on galena ,
Influence of water resources and metal ions on galena ,

metal ions on galena flotation of Rosh Pinah ore by G Coetzer, HS du Preez, and R Bredenhann* Synopsis During galena flotation of Rosh Pinah milled material, metal ions and salts contents of various water resources (deionized, simulated circulated, lead concentrate thickener, lead tailing thickener and

Know More
Pyrite flotation in the presence of metal ions and ,
Pyrite flotation in the presence of metal ions and ,

Recently, there has been growing suspicion that metal ions play a role in limiting selectivity of sulphide flotation These metal ions result from the use of recycle water, the presence of semisoluble minerals and from superficial oxidation of sulphide minerals and steel- grinding media

Know More
EFFECTS OF EDTA ON SELECTIVE FLOTATION OF SULPHIDE ,
EFFECTS OF EDTA ON SELECTIVE FLOTATION OF SULPHIDE ,

Key words: flotation, sulphide minerals, activation, EDTA INTRODUCTION , from metal ions can be prevented by the use of EDTA as a complexing agent to extract metal ions from the mineral surfaces and form complex compounds with the dissolved ions in the pulp In this work, unwanted activation of sphalerite and pyrite .

Know More
In situ particle film ATR-FTIR studies of CMC adsorption ,
In situ particle film ATR-FTIR studies of CMC adsorption ,

The work described in this paper leads on from our earlier work and focuses The use of carboxymethyl cellulose (CMC) as a depressant for on the effect of ionic strength and divalent metal ions on the ad- gangue minerals in metal sulphide flotation was established in sorbed amount and infrared spectra of adsorbed CMC on talc the 1950’s and 60 .

Know More
Overdose NaHS Depression - Froth Flotation (Sulphide ,
Overdose NaHS Depression - Froth Flotation (Sulphide ,

Depression of sulphide surfaces (natural or sulphidised) by either sulphide or hydrosulphide ions is due to displacement of the collector from the mineral surfaces (this was well known in the 1950's - refer to Sutherland and Wark's classic book "Principles of Floatation", page 137 onwards, Figure IX-14)

Know More
Hydrogen sulfide - Wikipedia
Hydrogen sulfide - Wikipedia

Hydrogen sulfide reacts with metal ions to form metal sulfides, which are insoluble, often dark colored solids Lead(II) acetate paper is used to detect hydrogen sulfide because it readily converts to lead(II) sulfide, which is black Treating metal sulfides with strong acid often liberates hydrogen sulfide

Know More
Get Solutions & Quotation