Hydrosulfide For Copper Froth Flotation Process

froth floatation for the recovery of copper

Sodium Hydrosulfide For Copper Froth Flotation Process. Sodium Hydrosulfide For Copper Froth Flotation Process Flotation using NaHS Sodium Hydrosulfide Froth Flotation I work in the gold mine mill were we extract gold and silver from both oxide, sulphate and transitional ore at mill rate of 680 t/h, just now we introduce NaSH replacing copper at flotation other reagent in place froth, promoter ...

Flotation using NaHS Sodium Hydrosulfide - Froth Flotation ...

I work in the gold mine mill were we extract gold and silver from both oxide, sulphate and transitional ore at mill rate of 680 t/h, just now we introduce NaSH replacing copper at flotation other reagent in place froth, promoter, PAX. What will be the best recommended dosing rate for the NaSH for

Froth Flotation Process - 911 Metallurgist

Seawater is used in copper-molybdenum flotation plants when fresh water resources are limited. To minimize the negative effect of process seawater on molybdenite flotation, diluting process ...

US4022686A - Flotation process for copper ores and copper ...

A flotation process in which copper ores or copper converter slags are ground and firstly have added thereto benzotriazole or alkyl benzotriazole as an activator and secondly one or more collectors selected from the group consisting of xanthates, dithiophosphates, thiocarbamate esters, dithiocarbamates, mercaptans and dixanthogens and further, if desired, a promoter such as kerosene, light oil ...

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 industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

The effect of sodium hydrosulfide on molybdenite flotation ...

Mar 15, 2020· Diesel oil was added in flotation without dilution while MIBC was diluted to 1 wt%. The pH was adjusted by the addition of 1 M NaOH solution instead of lime commonly used in flotation plants to eliminate the effect of Ca 2+ on the flotation. Sodium hydrosulfide (NaHS) was added as a depressant in the flotation. Both NaOH and NaHS were of AR grade.

froth floatation for the recovery of copper

Sodium Hydrosulfide For Copper Froth Flotation Process. Sodium Hydrosulfide For Copper Froth Flotation Process Flotation using NaHS Sodium Hydrosulfide Froth Flotation I work in the gold mine mill were we extract gold and silver from both oxide, sulphate and transitional ore at mill rate of 680 t/h, just now we introduce NaSH replacing copper at flotation other reagent in place froth, promoter ...

Froth Flotation Process - Detailed Explanation With ...

Basic Principle of Froth Flotation Process. The process of froth floatation starts with the Comminution process in which the surface area of the ore is increased. First of all, the ores are crushed into very fine powder sized particles and mixed with water. The mixture obtained is called Slurry.

US4022686A - Flotation process for copper ores and copper ...

A flotation process in which copper ores or copper converter slags are ground and firstly have added thereto benzotriazole or alkyl benzotriazole as an activator and secondly one or more collectors selected from the group consisting of xanthates, dithiophosphates, thiocarbamate esters, dithiocarbamates, mercaptans and dixanthogens and further, if desired, a promoter such as kerosene, light oil ...

To Float or Sink: A Brief History of Flotation Milling

process for separating sulfide ore based on the princi­ ple of SLilface tension on water.11 (Sulfide ores can contain copper, lead, zinc, iron, m.olybdenum, co­ balt, nickel, and arsenic.) The process, con1n1only called si<in flotation, stipulated that dry ore be sprin­ kled, without agitation, onto the stnface of a body of water.

Novel control for froth flotation cells

Mineral froth flotation is the largest tonnage industrial separation process in the world used for extracting valuable mineral contents in mining. A new simple, low cost, retro-fittable and field proven control system developed by engineers from Imperial Collage London, provides incremental improvement in productivity of the process.

US20080197053A1 - FROTH FLOTATION PROCESS WITH pH ...

This invention relates to the pH modifier in alkaline froth flotation processes to treat oxide and semi-soluble salt ores, such as phosphates, sulfates, carbonates and halides, to increase the recovery while generally maintaining or improving selectivity, thus the grade of desired minerals. The invented pH modifier is used to replace traditional alkaline pH modifiers—hydroxides, carbonates ...

The effect of sodium hydrosulfide on molybdenite flotation ...

Mar 15, 2020· Diesel oil was added in flotation without dilution while MIBC was diluted to 1 wt%. The pH was adjusted by the addition of 1 M NaOH solution instead of lime commonly used in flotation plants to eliminate the effect of Ca 2+ on the flotation. Sodium hydrosulfide (NaHS) was added as a depressant in the flotation. Both NaOH and NaHS were of AR grade.

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

A process for selectively separating molybdenum 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.

Flotation stabilization and optimization

stabilization and optimization of flotation circuits. Flotation is a process with many inputs and complex interactions. The modelling of flotation is reviewed by Mathe et al.1 Some current modelling techniques are explained by Manlapig and Franzidis2, who account for the effects of ‘true’ flotation, entrainment and froth …

Copper ore flotation process - YouTube

Jun 16, 2014· The flotation machine is used for the separation of the nonferrous black metal as well as the separation of the non-metallic materials such as the coal fluor...

The effect of sodium hydrosulfide on molybdenite flotation ...

Seawater is used in copper-molybdenum flotation plants when fresh water resources are limited. To minimize the negative effect of process seawater on molybdenite flotation, diluting process ...

Copper Flotation - Elmhurst University

The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime (simply water and ground-up limestone) to give a basic pH, pine oil (yes, it comes from trees -- a by-product of paper mills) to make bubbles, an alcohol to strengthen the bubbles, and a ...

TECHNICAL NOTES 9 FLOTATION - Mineral Tech

or less stable and mobile layer of froth will persist on the surface of the slurry which will gather and recover a proportion of the adhering mineral particles. 8.1 A Kinetic Approach to Flotation Modeling Almost all successful models of the flotation process have been based on the premise that flotation is a kinetic process.

60 Centuries of Copper: The Flotation Process

Only the flotation process mentioned above could make this practicable; and even so, it requires large companies with huge plants, continuous working and immense capital. This explains why, in order to smelt 4 million tons of new copper in 1963, nearly 400 million tons …

Copper Flotation - Elmhurst University

The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime (simply water and ground-up limestone) to give a basic pH, pine oil (yes, it comes from trees -- a by …

Estimated Water Requirements for the Conventional ...

Copper sulfide ores must be concentrated before they can be economically transported to a smelter. Froth flotation is part of a copper beneficiation process in which finely ground ore is placed in aerated tanks that contain a water-based solution from which a copper-sulfide-rich froth is recovered

Froth Flotation Process - Detailed Explanation With ...

Basic Principle of Froth Flotation Process. The process of froth floatation starts with the Comminution process in which the surface area of the ore is increased. First of all, the ores are crushed into very fine powder sized particles and mixed with water. The mixture obtained is called Slurry.

RECOVERY OF VALUES FROM A PORPHORY COPPER …

The efficiency of the froth flotation process has long been known to be strongly dependent on particle size. For sulfide minerals, good recoveries are typically achieved in industrial flotation circuits for particles in the 30 to 150 m size range. Particles outside this critical size are typically lost in industrial

To Float or Sink: A Brief History of Flotation Milling

process for separating sulfide ore based on the princi­ ple of SLilface tension on water.11 (Sulfide ores can contain copper, lead, zinc, iron, m.olybdenum, co­ balt, nickel, and arsenic.) The process, con1n1only called si<in flotation, stipulated that dry ore be sprin­ kled, without agitation, onto the stnface of a body of water.

Novel control for froth flotation cells

Mineral froth flotation is the largest tonnage industrial separation process in the world used for extracting valuable mineral contents in mining. A new simple, low cost, retro-fittable and field proven control system developed by engineers from Imperial Collage London, provides incremental improvement in productivity of the process.

60 Centuries of Copper: The Flotation Process

Only the flotation process mentioned above could make this practicable; and even so, it requires large companies with huge plants, continuous working and immense capital. This explains why, in order to smelt 4 million tons of new copper in 1963, nearly 400 million tons …

TECHNICAL NOTES 9 FLOTATION - Mineral Tech

or less stable and mobile layer of froth will persist on the surface of the slurry which will gather and recover a proportion of the adhering mineral particles. 8.1 A Kinetic Approach to Flotation Modeling Almost all successful models of the flotation process have been based on the premise that flotation is a kinetic process.

Optimization of Chalcopyrite Froth Flotation Process by ...

The particle size of the particle and the froth stability, viscosity and pulp density during the process relevant factors during the process in the copper concentration process by flotation [2-5] Generally, flocculants and peptizes during flotation are applied to allow clays to be included into the pulp in suspended form. This reagent can ...

Flotation stabilization and optimization

stabilization and optimization of flotation circuits. Flotation is a process with many inputs and complex interactions. The modelling of flotation is reviewed by Mathe et al.1 Some current modelling techniques are explained by Manlapig and Franzidis2, who account for the effects of ‘true’ flotation, entrainment and froth …

(PDF) Modelling H2S gas generation in Copper/Molybdenum ...

Copper/molybdenum flotation process must operate p H values ranging between 7.0 a nd 8.5 i n order to maximize the sep aration. E quation (7) shows the dependence of H 2 S transferred with area

Copper recovery from waste printed circuit boards by ...

This work proposes a process for copper recovery from PCBs by froth flotation and oxidation leaching. Copper grade is improved from 38.70 % to 68.34 % with the recovery of 88.76 % by froth flotation, and froth flotation is significantly influenced by copper liberation and particles dispersion of PCB powders.

THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY

Froth flotation is a mineral beneficiation process implemented in the recovery of valuable minerals from unwanted gangue material. Copper sulphate is used as an activator in the flotation of base metal sulphides (BMS) as it promotes interaction of collector molecules with the mineral surfaces. It is also used in certain platinum

Artificial Intelligence in Mineral Processing Plants: An ...

A. Flotation Process Froth flotation processes have been over a century in the mineral processing industry. However, despite numerous years of research and development, flotation is still not fully understood and remains relatively inefficient, opening opportunities to novel …

Location

CONTACT INFO