The flotation reagents and dosages, flotation and conditioning times used for the copper flotation stage are given in Table 1.Zinc sulphate (ZnSO 4) and sodium metabisulfate (MBS) were used as depressant, sodium silicate was used as dispersant for clay.Sodium Aerofloat (Na-AF) and a thionocarbamate type collector (Aero 7279) were used as collector and promoter, respectively.
copper flotation dosages
of the world production and 7.5% of copper deposits all over the world. In the present study, an attempt is made to assess the feasibility of froth flotation of a complex sulphide ore, where the effect of liberation grade as well as depressant, collector and frother dosage was studied. Copper flotation is …
Flotation Frothers What is the Function of Frothers. The function of frothers in flotation is that of building the froth which serves as the buoyant medium in the separation of the floatable from the non-floatable minerals. Frothers accomplish this by lowering the surface tension of the liquid which in turn permits air rising through the pulp to accumulate at the surface in bubble form.
copper sulphate, at higher dosages, activated the chromite. Low dosages of copper sulphate resulted in no chromite activation. This was observed at low depressant dosages of both IMP4 (guar gum) and KU5 (carboxymethyl cellulose (CMC)). When the depressant dosages were increased, at higher copper sulphate dosages, it was
Oct 25, 2014· Abstract. The dosage of a collector is an important factor that determines the efficiency of a froth flotation process. The representative sample of the carbonatitic Palabora copper ore ground 45 % passing 75 µm was froth-floated with sodium isobutyl xanthate (SIBX) collector at 60, 70, 80, 90 and 100 g/t dosages.
Froth flotation circuit design and basic testwork requirements Froth flotation is a very important mineral concentration process that is used to recover a vast array of different minerals containing valuable commodities such as copper, lead, zinc, nickel, …
RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.
North Waziristan copper-ore on Pilot-scale to obtain a copper concentrate suitable for further metallurgical treatment. The important flotation parameters, e.g. type and dosage of collector, dosage of depressent, dispersent and frother and conditioning time for collector were examined. During stepwise optimization of flotation parameters, the ...
graphite mine collector dosage flotation grandcafemarnix.nl. Optimization of operating parameters of graphite flotation NOPR. Usak University, Faculty of Engineering, Mining Engineering Department, 1 Eylul Campus,. 64200, Usak optimum pH in graphite flotation is between 8 and 98,15.
Effect of reagent dosages on the entrainment factor of flotation of copper ore at laboratory scale ... as a function of both collector and frother dosages. The flotation experiments have been ...
A new method, staged flotation for effectively increasing the recovery of ultra-fine copper oxide ore with a new type of collector (ZH-1, C3-5 carbon chain xanthate) is proposed for the first time. The flotation process and mechanism were examined by flotation tests, entrainment rate analysis, laser particle size experiments and microscopic imagery as well as economic feasibility analysis.
1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air …
The dosages of 1500, 1567 and 100 g/Mg of sodium silicate, sodium sulfide and potassium amyl xanthate, respectively, the conditioning time of 5 min for sulphidisation ... In general, the conventional flotation methods of copper sulfide ores do not apply to oxide ores.
Flotation tests were conducted using a 1-liter capacity laboratory type flotation cell (Fig. 2a) with 330 g of ground ore sample in a Denver type flotation machine at 30% solid ratio and agitation speed of 1300 rpm (Fig. 2b). In the tests, the reagent dosages for PAX and PEX as
Chapter 7. Depression of sphalerite with cyanide and zinc sulphate 105 Flotation pH at Rosh Pinah Therefore, the presence of hydrophilic zinc hydroxide at the surface of sphalerite will prevent the interaction between the lead-activated sphalerite and xanthate, and subsequently decrease its floatability in the lead flotation circuit. Figure 7.1.
To overcome this problem, two reagent Aluminosilicate minerals strategies were used: (a) dextrin at 100, 200, and 600 g/ton and (b) a mixture of dextrin, sodium silicate, Copper Flotation and sodium hexametaphosphate (20%, 40%, and 40% by weight, respectively) at 200 and 300 g/ton.
depressant dosage, 100g/t. Relative significance of flotation parameters (based on difference between max and min. values) indicates that pH has the most significant effect on the recovery of nickel, copper and cobalt during flotation. Analysis of variance showed that pH and depressant dosage were the most significant parameters affecting the
From case studies done at Kansanshi Copper Mines, it became evident that: • the effect of changing the dosage of a reagent can immediately be identified through the availability of an in-line measurement of minerals, Fe and S • The relationship between the TCu and the ASCu in the flotation feed is changing and can only be pro-actively
Metallurgical ContentA Copper Flotation FlowsheetCOPPER MININGCRUSHING COPPER ORECOPPER ORE STORAGEGRINDING COPPER ORECOPPER FLOTATION CIRCUITCOPPER THICKENING AND FILTERINGPROCESS CONTROLSCopper Flotation Process SummaryFlotation of Copper Ores Although basic porphyry copper flotation and metallurgy has remained virtually the …
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.
Optimization of reagent dosages for copper flotation using statistical technique Y. VAZIFEH 1, E. JORJANI 1, A. BAGHERIAN 2 1. Department of Mining Engineering, Science and Research Branch, Islamic Azad University, Poonak, Hesarak, Tehran, Iran; 2.
A copper collector may also be added at this point. The pulp progresses to the flotation cells. The frother and copper collector are usually added to the pulp just before the roughers. Additional copper collector is often added to the scavenger flotation cells and may be added at several other points.
For Use as an Industrial Chemical: Fondel Copper Sulfate can be used in many non-pesticide industrial applications, such as a froth flotation activator for zinc and lead ores, in electroplating and electroless plating of metals and plastics, as a raw material for chemical reagents and copper salts, as a battery electrolyte, metal marking inks ...
3.3 Reagents NASCOL 201 (O-isopropyl ethyl thiocarbamate) and NASCOL 446 (di-isobutyl monothiophosphate) were used separately as a collector and NASCOL HEL as frother for the bulk and copper flotation. The dosage for each collector was set to 20, 30, and 40 g/t of ore and 10 g/t for NASCOL HEL based on the initial tests conducted.
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 ...
The main aim of the paper was to examine the impact of selected collector types and dosages on the results of Polish sandstone copper ore flotation and to find optimal parameter values for products that meet quality and quantity requirements. The laboratory tests were carried out with an application of two types of collectors (Hostaflot, sodium ...
Sulfidization requires pulp potential control to keep this parameter in the range of 0 to +100 mV, yielding high copper recoveries at minimum collector (90 git) and fr other (60 git) dosages. Flotation with nitrogen reduces the sodium sulfide dosages required to …
Investigation of Flotation Parameters for Copper Recovery from Enargite and Chalcopyrite Mixed Ore Kazutoshi Haga+, William Tongamp and Atsushi Shibayama Faculty of Engineering and Resource Science, Akita University, Akita 010-8502, Japan
the plant practice operation due to part of sphalerite was progressively entrapped into lead-copper bulk flotation. A series of de-zincing on lead-copper flotation tests has been conducted in the laboratory to reduce unwanted zinc content. Dosages variation of common sphalerite depressant such as …
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