Role of Sodium Sulfide – Copper Lead & Zinc Ore 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 U.S.A. in 1915-20 for oxide copper minerals flotation, is especially suitable for oxidized lead ...

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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 5.6% zinc as marmatite; and was treated in a circuit made alkaline with lime, using pine oil as a frother and ...

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In flotation of pyrite with xanthate, butyl xanthate is usually used. Generally, after the activator (copper sulfate) is added to the pulp, the mixed emulsifier of xanthate, pine oil and water can be added at one time, which is better than the multiple addition of the flotation reagent, and the dosage of the flotation reagent will be saved.

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A method for the flotation of nickel and copper sulphide minerals from talcose bearing ores using an alkaline circuit in which at least one of the alkaline reagents is soda ash or ammonium hydroxide and following conditioning of the pulp with a collecting agent of the xanthate family to activate the nickel and copper sulphide materials, the pulp is conditioned with a flocculating agent to ...

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In the zinc flotation circuit, sphalerite is activated using copper sulphate and floated with specified collectors. The schematic diagram of the actual Gushfil flotation plant is shown in Fig. 1 ...

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pyrite flotation but selectivity against zinc is adversely affected in flotation of copper and zinc when sulphate ions concentrations in the water is more than 100 mg/l. In Laisvall concentrator deterioration of lead flotation and over frothing was experienced due to precipitation of calcium carbonate from the mine water in pipes and spray nozzles.

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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.

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The addition of copper sulphate enhances the rate of pyrite flotation and the grade of concentrate. The role played by copper sulphate is not entirely clear, and a number of theories have been proposed to explain the observed effect. Firstly, it has been suggested that copper ions are adsorbed onto the pyrite surface, thus modifying the surface ...

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Technical Evaluation Report Copper Sulfate Crop Production January 20, 2011 Page 3 of 27 111 (CuSO 4 · 5H 2 O) granules, or powder, or crystals with bright blue color, and is hygroscopic2 (Merck, 1960; 112 MSDS-Copper Sulfate 1; Hebert, 1993).

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flotation of copper ox ide ore, showed that fl otation recovery increas ed by 12.28% when ammonium sulphate was added in the presence of sodium sulphide. The hig hest recovery was obtained when ...

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Industrial Grade Copper Sulphate . Copper sulfate is used by mining organizations in flotation processes, especially for treating lead-zinc and gold metals. It is likewise utilized as a part of some material coloring processess, in the make of specific sorts of rayon strands, in cowhide dressing, as an additive for timber and in hostile to fouling paints.

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Addition of reagents is of special significance to the flotation of copper oxide ores, especially sodium sulfide, which is not only an activator of copper oxide ores, but also an inhibitor of copper sulfide ores. Therefore, it is not appropriate to add enough reagents at one time, usually in batches and stages.

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About Copper Sulfate. Copper II Sulfate (a.k.a. Cupric Sulfate) is an inorganic compound that can be found in many forms, with the pentahydrate being the most common of them. The pentahydrate is a blue crystalline solid that can be converted to the monohydrate by heating at temperatures above 110°C and to the anhydrous salt above 250°C.

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A sequential flotation process for the recovery of high-grade concentrates of copper, lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO 2 as H 2 SO 3 under intense aeration, and the conditioned pulp subjected to sequential flotation, with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper.

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Flowsheet for treatment of Copper Sulfide ores rich inminerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60-65% silica, with pyrite, arsenopyrite, and calcite with 3 to 4% copper.

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Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0 Tailings 90 0.1 (a) From Table 1, the Ratio of Concentration can be calculated as F/C = 100/10 = 10. If only assays are available, the ratio of concentration equals (20 – 0.1)/(2.09 – 0.1) = 10 ...

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The invention discloses a copper oxide ore flotation agent. The copper oxide ore flotation agent comprises, by weight, 100-170 parts of sodium silicate, 150-100 parts of sodium sulfide, 20-25 parts copper sulfate, 10-17 parts of ammonium dibutyl dithiophosphate, 100-170 parts of sodium o-ethyl dithiocarbonate and 10-20 parts of terpenic oil.

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In a parallel study on selective separation of copper and iron minerals, effective depression of pyrite was also achieved by these modified PAMs (PAM-H, PAM-C and PAM-S). However, it is worth noting that these PAMs lowered the copper flotation rate to around half its original value at the highest PAM concentration (Boulton et al., 2001a). 3.4.

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Copper sulfate is a massive crystal with irregular shape and size. The color can be dark blue or light blue which is translucent. It is quite fragile so that it is easy to be cracked and dissolve into the water. The copper sulfate is odourless, bitter in taste and astringent. CuSO 4 ·5H 2 O is very stable under normal pressure and temperature ...

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Flotation tests in a laboratory flotation cell at pH 8-8.5 and other sui}plementary tests were carried out on sphalerite-quartz and sphalerite-pyrite-'quartz mixtures. Depression of sphalerite resulted vvhen the addition of copper sulphate exceeded an optimum value. Evidence that this depression was due to collector deficiency because of reaction between copper sulphate and collector is presented.

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The sulfidisation promotion effect of ammonium sulfate is confirmed by pure copper oxide mineral flotation test and copper oxide ores flotation test, as well as by SEM images of floated malachite ...

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3.3. Effect of SIBX Dosage. Different dosages of SIBX were used during the flotation experiments. The optimal activator dosages (4.0 × 10 −5 mol/L copper sulphate and 5.0 × 10 −5 mol/L ACS) were used to activate sphalerite. The effect of SIBX dosage on Zn recovery during flotation is shown in Figure 4.The recoveries increased with increasing SIBX dosage and reached the maximum …

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The main objective of the invention was to develop a new flotation collector that could eliminate or reduce the amount of copper sulfate used in the flotation of sphalerite. Different series of collectors such as cupferrons, arylhydroxamic acids and amino mercaptans or amino thiols were synthesized and tested. Amino mercaptans/aminothiols were found to be very effective in floating sphalerite ...

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Therefore, ammonium sulfate and copper sulfate have the optimum combination: ammonium sulfate of 200 g·t −1 and copper sulfate of 300 g·t −1. Rougher-collector experiments Xanthate and dithiophosphate are the most common collectors for sulfide ore flotation.

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Inorganic species, such as metal ions but also carbonate and sulphate ions, may have a positive or negative effect on mineral flotation. As sulphate ions are always found in high concentrations in process waters, their effects on the flotation of copper, molybdenum and zinc sulphides were investigated in single minerals and ores experiments ...

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The flotation survey results shown in Fig. 9 shows that the froth structure is altered by the addition of copper sulphate and that the entrainability decreased when copper sulphate was added to the system. This means that there was less hydrophilic gangue collected per unit water in the presence of copper sulphate than in the absence of copper ...

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immediately prior to flotation. Reagents A 1% solution of copper sulphate was prepared using CuSO4.5H2O. The copper sulphate was always added prior to collector addition. As specified in the experiments performed, a dosage of either 30 g/ton or 90 g/ton was used. A copper sulphate dosage of 30 g/ton is the stoichiometric amount

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The addition of ammonium salts is an effective way for enhanced sulfidation on the sulfide-xanthate flotation of copper oxide ... of sphalerite and …

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Uses of Copper Sulphate. Copper sulphate, blue stone, blue vil are all common names for pentahydrated cupric sulphate, CuSO 4 5H 2 O, which is the best known and the most widely used of the copper salts. Indeed it is often the starting raw material for the production of …

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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 ...

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