WhatsApp)
In addition, the commonly used activators are lead nitrate, lead acetate and copper sulfate. Sulfur dioxide is also used as an activator in goldbearing pyrite flotation abroad. The acidity and alkalinity of pulp often directly or indirectly affect the flotability of goldbearing and silverbearing minerals.
In the extraction of gold by flotation process, sulfurous acid and lime are used as inhibitor, copper sulfate as activator, ethy| xanthate and butyl xanthate as collectors and pine oil as ing agent. The dosage of every agent is 15g/t of the pine oil, 130140g / t of xanthate, 4000g / t of lime, 350g / t of copper sulfate, and 40L/ t of sulfuric acid.
As an example of the beneficial effect of copper sulfate in the activation of zinc sphalerite toward flotation, the series of results shown in Fig. 1 is of interest. These represent rougher tests on a sample of heavy pyritic ore. The particular sample in question contained about % zinc as marmatite; and was treated in a circuit made alkaline with lime, using pine oil as a frother and
Though the gold recovery methods previously discussed usually catch the coarser particles of sulphides in the ore and thus indirectly recover some of the gold associated with these and other heavy minerals, they are not primarily designed for sulphide recovery. Where a high sulphide recovery is demanded, flotation methods are now in general use, but in the days before flotation
The metal industry uses large quantities of copper sulphate as an electrolyte in copper refining, for copper coating steel wire prior to wire drawing and in various copper plating processes. The mining industry employs it as an activator in the concentration by froth flotation of lead, zinc, cobalt and gold ores.
Jan 01, 1988#0183;#32;Abstract. The role of copper sulphate in the flotation of pyrite has been studied. A survey of a number of pyrite flotation plants using copper sulphate showed that in correct dosages it was able to increase both grades and recoveries. This was confirmed in batch tests.
Copper sulfate can be prepared by treating metallic copper with heated and concentrated sulphuric acid, or by treating the oxides of copper with dilute sulphuric acid. It can be noted that the oxidation state exhibited by the copper atom in a CuSO 4 molecule is +2.
Among the flotation reagents, commonly used activators for flotation are sulfuric acid, sulfurous acid, sodium sulfide, copper sulfate and so on. Inhibitors : It is a kind of reagents mainly used to increase the hydrophilicity of minerals and to form a hydrophilic film on the surface of
May 30, 2016#0183;#32;Different sulphide ores respond differently in the prospect of copper activation to thiols for froth flotation. With the BCL SelebiPhikwe ore body, pentlanditepyrrhotitechalcopyrite cooccur and there is the constraint of fine pentlandite dissemination in the pyrrhotite, so that liberation is limited. In the presence of pentlandite, pyrrhotite can even be galvanically depressed.
Jan 01, 2016#0183;#32;It is widely accepted that the main purpose of copper sulfate in the flotation of sulfide gold carriers is to enhance the flotation of the sulfides and, in particular, pyrrhotite (Mitrofanov and Kushnikova, 1959), arsenopyrite (Gegg, 1949, O''Connor et al., 1990), and pyrite (Bushell and Krauss, 1962). The sequence of copper sulfate addition (before or after the collector) is important.
At STP, there will be no reaction. Gold is much less active than copper so there will be negligible gold sulfate formed by substitution. Gold is the lowest metal in the electrochemical series, so
Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills has continually been improved to increase production while reducing operating and maintenance costs. Also, considerable attention is paid to automatic sensing devices and automatic controls in order to assure maximum metallurgy and
Copper and sulfur in copper ore have strong collection properties, which is also conducive to improving the recovery of associated gold in copper sulphide ores. The flotation effect of refractory coppersulfur ore containing secondary copper minerals is better than that with
Jan 01, 2005#0183;#32;It is widely accepted that the main purpose of copper sulfate in the flotation of sulfide gold carriers is to enhance the flotation of the sulfides and, in particular, pyrrhotite ( Mitrofanov and Kushnikova, 1959 ), arsenopyrite ( Gegg, 1949; OConnor et al
FLOTATION OF GOLDCONTAINING COPPER ORES. The floatability of gold from goldcontaining copper gold ores depends on the nature and. occurrence of gold in these ores, and its association with iron sulphides. Gold in the porphyry copper ore may appear as native gold, electrum, cuproaurid and.
Copper Sulfide Flotation Circuit Beneficiation of Copper Sulfide by Flotation Copper, due to the present world demand and price, is of foremost interest to the mining industry. Many new properties are either in the process of being brought into production or are
The role of copper sulphate in the flotation of pyrite has been studied. A survey of a number of pyrite flotation plants using copper sulphate showed that in correct dosages it was able to increase both grades and recoveries. This was confirmed in batch tests. Copper sulphate had no significant effect on the rate of adsorption of potassium n
Jan 19, 2020#0183;#32;Copper sulfate is an inorganic compound that combines copper and sulfate. In its liquid or powdered form its most commonly called basic copper sulfate, BSC copper fungicide, CP basic sulfate, or tribasic copper sulfate. In its solid, crystalshaped stone form (known as a pentydrate) its known as blue stone or blue vil for its blue
WhatsApp)