Copper Lead Concentrate Separation
When copper-bearing minerals are to be separated from galena, the first step generally consists of the “bulk flotation” of both classes of mineral in one copper-lead concentrate by the use of reagents very similar to those employed in the lead flotation section of a lead-zinc plant.
separation copper from galena
Flotation separation of chalcopyrite from galena by sodium. galena with sodium humate as the inhibitor, and put forward an environmentally friendly way for the separation of copper/lead minerals. The floatabilities of chalcopyrite and galena in the presence and absence of the depressants were studied. The adsorption
Enhancing flotation separation of chalcopyrite and galena ...
In previous studies, dichromate has been used to depress lead minerals and separate copper from lead by increasing the oxidation on the surface of galena . Lead on the surface of galena is hydrophilic and leads to the deterioration in the floatability of galena, and dichromate is an environmental pollutant . Sulfur dioxide is one of the most commonly used lead depressants; however, because of its …
Flotation separation of chalcopyrite from galena by sodium ...
used for the separation of copper/lead minerals [2,3], such as copper depression with lead flotation and lead depression with copper flotation. Some reagents such as sodium cyanide for the depression of chalcopyrite and sodium dichromate for the depression of galena are employed [4]. Although only small amount of this kind
Research on the Role of Pre-Oxidation in the Separation of ...
Nov 01, 2011 · It is the most effective method to use potassium dichromate to separate copper from lead when galena is oxidized. However, it needs long time to oxidize galena by potassium dichromate.
General : extracting silver from galena
Another way would be to solve the galena in acid or a solution, then putting a coal (as cathode pole) and a copper (as anode pole) stick into the solution. If you put the cables at a car battery, the silver will get attracted to the copper stick.
Lead Zinc Separation by Flotation - Froth Flotation ...
Some of the metals that can do the stone are copper and lead. At a pH between 8-9 lead can activate sphalerite to cause it flotation. So the reason is during the flotation of the two there may be lead re dissolution from galena which may activate sphalerite to cause it flotation.
Copper-Lead-Zinc ores
Most often the copper minerals are floated after galena depression. Galena is depressed using sodium dichromate, sodium sulfite, polysaccharide (starch, dextrin) or even CMC. Addition rates of these depressants can be critical if any recirculating load is returned to the bulk rougher circuit.
Getting silver from Galena - Gold Refining Forum.com
May 20, 2010 · Cementation of silver with copper is a well know technique to produce silver metal of an acceptable purity, but you will always get some impurities from the Copper. Method for producing 500 grams of photo grade AgNO3-Start with incinerating you scrap silver to remove any dirt and oil residues. Do not melt the silver.
Copper extraction - Wikipedia
When rich enough, native copper ore bodies may be treated to recover the contained copper via a gravity separation circuit where the density of the metal is used to liberate it from the lighter silicate minerals. Often, the nature of the gangue is important, as clay-rich native copper ores …
Utilization of polysaccharides as depressants for the ...
The concentration of copper and lead leaching from chalcopyrite and galena was measured using inductively coupled plasma atomic emission spectrometry (ICP-AES). The dissolution tests were carried out as a function of time, both in the absence and presence of the polymers (dextrin or soluble starch).
Selective separation of galena and sphalerite from pyrite ...
Selective separation of galena and sphalerite from pyrite-rich lead-zinc ores: A case study of the Kooshk mine, Central Iran Ghasem Heydari a, Javad Vazife Mehrabani a, *, Behnam Bagheri a a Department of Mining Engineering, Sahand University of Technology, Tabriz, Iran A B S T R A C T In this research, the selective flotation of galena
Effect of surface oxidation on the flotation separation of ...
This study investigated the influence of mineral oxidation on Cu-Pb separation using green reagent sodium humate as depressant for galena. The flotation tests showed that sodium humate had a poor selectivity when it was used alone, especially with high dosage of sodium humate chalcopyrite could be depressed as well.
Lead-Zinc ores
Flotation separation and recovery of lead and zinc concentrates from ores containing galena (PbS) and sphalerite (ZnS) is well established and generally achieved quite effectively. Silver often provides highly significant economic value, if not the greatest value, with the silver most often associated with the galena mineralization which is ...
Extraction of Copper - YouTube
Dec 08, 2014 · For the Love of Physics - Walter Lewin - May 16, 2011 - Duration: 1:01:26. Lectures by Walter Lewin. They will make you ♥ Physics. Recommended for you
EVALUATION OF ORGANIC CARBON SEPARATION FROM …
In the Zinifex Century mine, the main ore mineralization includes galena and sphaler-ite, while the gangue consists of a large amount of organic matter, which is the main carrier (~3%). The presence of organic carbon is not without consequences in the flo-tation separation of galena and sphalerite. Due to this, a pre-flotation process has been
Effect of surface oxidation on the flotation separation of ...
Nov 27, 2017 · This study investigated the influence of mineral oxidation on Cu-Pb separation using green reagent sodium humate as depressant for galena. The flotation tests showed that sodium humate had a poor selectivity when it was used alone, especially with high dosage of sodium humate chalcopyrite could be depressed as well.
Can anybody give me some ideas to separate copper and lead?
A desulfurization of galena to Pb. Toasting of lead sulfide will lead part of it to be lead oxide. A reduction of lead oxide by anthracite will be done at 800 - 1000 C. A lead copper alloy will pour from the rotary furnace. The smelting cycle time depends on weight of charge.
Silver Refining: Extract pure Silver at Home from Mixed ...
Oct 05, 2017 · We are extracting pure Silver (Ag) from cheap jewelry containing copper and silver. The metals are converted into nitrates by dissolving them in concentrated nitric acid. The excess acid is ...
Seaweed glue as a novel polymer depressant for the ...
The use of seaweed glue (SEG) as a novel polymer depressant for the separation of chalcopyrite from galena with butyl xanthate (BX) as a collector was studied through microflotation experiments. Contact angle, adsorption, dynamic potential, and infrared spectral analyses were conducted to clarify the mechanism underlying the action of SEG on ...