Flotation Gold Pyrite

01-03-1997· Thus, when gold occurs in the form of gold-tellurides with pyrite, which also contains a significant amount of gold, the study of the selective flotation of gold tellurides from pyrite becomes more important. To investigate the flotation behaviour of gold tellurides in comparison to pyrite, a series of experiments were carried out.

Flotation kinetics of a pyritic gold ore. Kinetics of semi-batch flotation behavior of a gold ore from North-Western Quebec, Canada was investigated with respect to fineness of grind (P80) The gold was mostly associated with pyrite in native form as inclusions and was also in contact with pyrite along the boundaries of non-sulphide gangue ...

17 Flotation of Gold Ores Aalto. Flotation behaviour of gold associated in the platinum group metals is apparently the same as that for the platinum group minerals (PGMs) or other minerals associated with the PGMs (i.e. nickel, pyrrhotite, copper and pyrite).

Where gold is associated with pyrite in base metal ores where iron sulphides are depressed and report to the tailings, a separate tailings pyrite flotation concentrate should be considered. Producing a pyrite concentrate with associated gold maximizes gold recovery.

Can you list the factors affects the floatability of pyrite from refractory low grade ore.I used a Wemco lab flotation cell and aimed on analysing factors like collector dosages (PAX), Activator (Copper sulphate),MIBC , pH and others like pulp density and particle size (70 and 150 microns) .However

01-10-1997· Gold and pyrite separation by flotation could possibly be achieved in this system due to the significant differences in hydropho- bicity found between gold and pyrite (Figs. 4 and 5). Fig. 6 shows the results of measurements of the electrophoretic mobility of pyrite as a function of pH for different conditions of superficial oxidation, in the presence and absence of potassium amyl xanthate.

Flotation kinetics of a pyritic gold ore. Kinetics of semi-batch flotation behavior of a gold ore from North-Western Quebec, Canada was investigated with respect to fineness of grind (P80) The gold was mostly associated with pyrite in native form as inclusions and was also in contact with pyrite along the boundaries of non-sulphide gangue ...

17 Flotation of Gold Ores Aalto. Flotation behaviour of gold associated in the platinum group metals is apparently the same as that for the platinum group minerals (PGMs) or other minerals associated with the PGMs (i.e. nickel, pyrrhotite, copper and pyrite).

Gold-Pyrite ores - Danafloat - Home. Where the gold is intimately associated with various sulphide minerals, especially iron sulphides which include pyrite, arsenopyrite and pyrrhotite, flotation recovery of the gold is dependent on recovery of the associated minerals. In this case gold follows the associated sulphide mineral recovery.

01-01-2016· Application of flotation on a reasonable scale within the gold-mining industry commenced in the early 1930s following the introduction of water-soluble flotation collectors (specifically xanthates and dithiophosphate collectors) that allowed differential flotation of sulfide minerals, followed by the installation of pyrite flotation plants on numerous gold mines in South Africa.

One of the more common classes of ores containing gold is when gold is associated with pyrite, pyrrhotite, and arsenopyrite. This is the area of gold recovery that has probably received the most research and plant optimization support especially in light of the long history of South African industrial practice. From a reagent viewpoint, charged water soluble collectors such as xanthates ...

dithiophosphate collectors, with over 95% gold recovery. Flotation behaviour of gold associated in the plati-num group metals is apparently the same as that for the PGMs or other minerals associated with the PGMs (i.e. nickel, pyrrhotite, copper and pyrite). Therefore, the reagent scheme developed for PGMs also recovers gold. Normally, for the ...

Gold-bearing pyrite concentrates are sometimes roasted and cyanided in separate circuits as at Kerr Addison. Also, high grade gold-pyrite flotation concentrates can be shipped to the smelter as is Knob Hill practice. Pyrite and pyrrhotite often occur together creating an overlap in treatment methods. Gold …

agitation flotation cell for pyrite miningFroth Flotation Department of Chemical EngineeringCell Design. Agitation. Air Flow. Cell Bank Configuration. Cell Bank Control . Table 1: Grade/recover&flotation gold pyrite

The pyrite in which small amounts of gold occurs is of crystalline variety (primary pyrite). The characteristics of primary pyrite are a absence of porosity, an extreme brittleness, a resistance to oxidation, and the existence of gold possessing a weak susceptibility to magnetism (due to a fine coating of a iron compound).

01-10-1997· Gold and pyrite separation by flotation could possibly be achieved in this system due to the significant differences in hydropho- bicity found between gold and pyrite (Figs. 4 and 5). Fig. 6 shows the results of measurements of the electrophoretic mobility of pyrite as a function of pH for different conditions of superficial oxidation, in the presence and absence of potassium amyl xanthate.

01-01-2016· Application of flotation on a reasonable scale within the gold-mining industry commenced in the early 1930s following the introduction of water-soluble flotation collectors (specifically xanthates and dithiophosphate collectors) that allowed differential flotation of sulfide minerals, followed by the installation of pyrite flotation plants on numerous gold mines in South Africa.

An investigation into the effects of various flotation parameters on the flotation behavior of pyrite, gold and uranium contained in the Witatersrand Type ores and their practical exploitation ...

In the late 1970s and early 1980s there were approximately 25 pyrite flotation plants operating in South Africa. These were located in the gold mining areas where the slimes dams were retreated mainly to produce a concentrate for sulphuric acid production. The gold content was 0.5g/ton of which about 50% was recovered in the concentrate.

Separation of gold from pyrite? - GPEX. 2008-10-28 To one and all: Seems to me there is a method out there for separating pyrites from the rest of the ore by the flotation process. I have not worked with the process, so I'm in the dark as to how i works. BUT I sure would like to know, because the ore I am currently working is loaded with pyrites.

Gold Flotation - Mineral Processing Metallurgy. GOLD FLOTATION FLOWSHEET. It is obvious that the most suitable treatment for ores carrying gold and silver associated with pyrite and other iron sulphides, arsenopyrite or stibnite, will depend on the type of association.

Gold-bearing pyrite concentrates are sometimes roasted and cyanided in separate circuits as at Kerr Addison. Also, high grade gold-pyrite flotation concentrates can be shipped to the smelter as is Knob Hill practice. Pyrite and pyrrhotite often occur together creating an overlap in treatment methods. Gold …

agitation flotation cell for pyrite miningFroth Flotation Department of Chemical EngineeringCell Design. Agitation. Air Flow. Cell Bank Configuration. Cell Bank Control . Table 1: Grade/recover&flotation gold pyrite

The pyrite in which small amounts of gold occurs is of crystalline variety (primary pyrite). The characteristics of primary pyrite are a absence of porosity, an extreme brittleness, a resistance to oxidation, and the existence of gold possessing a weak susceptibility to magnetism (due to a fine coating of a iron compound).

The gold-pyrite association is dependent on ore grade and textural features of the ore. When present with pyrite, arsenopyrite commonly will have significantly higher gold grades than the pyrite ... Flotation test work was conducted on both samples and the optimum conditions presented in Table