The effects of Z11 and AP407 collectors as well as AF65 and AF70 frothers were evaluated in the rougher flotation circuit of the Sungun copper concentrator plant using 2 4 full factorial design. Response functions were produced for both Cu grade and recovery and optimized within the experimental range.
The importance of flotation separation has long been, and continues to be, an important technology for the mining industry, especially to metallurgical engineers. However, the flotation process is quite complex and expensive, in addition to being influenced by many variables. Understanding the variables affecting flotation efficiency
Based on the functional application, flotation reagents can be divided into the collector, depressant, frother, regulator, flocculant, etc. At present, there are more than 2 billion tons of ore enriched by froth flotation in the world every year. The demands for efficient flotation reagents have become more and more important.
Embodiments of the present invention are directed to flotation of sulfidic materials following aerating by an oxidizing gas and contacting by a sulfoxy reagent. Separation of copper minerals from pyrite using air-metabisulfite treatment
Copper sulphate or ACS at a concentration of 1.0 × 10 −4 mol/L was added to soak the test sample for 5 min. Then, SIBX was added for 1 min. Finally, the sample was dried and tested. 2.3.3. Small-Scale Flotation Test. The flotation tests were conducted in a modified Hallimond tube, as described in detail by Cao and Liu .
Another aerofloat derivative, sodium di-ethyl-di-thio-phosphate (American Cyanamid Company's Reagent " 208 "), is to a certain extent replacing sodium aerofloat in the flotation of sulphide copper minerals, its mode of addition in conjunction with xanthate being the same as that of the other reagent.
Handbook of Flotation Reagents ... 13 Flotation of Copper-Zinc Ores ..... 295 13.1 Some Geological and Mineralogical Features of Copper-Zinc Ores Relevant to Flotation ..... 295 13.2 Flotation Properties of Copper-Zinc Ores ..... 296 13.3 Reagent Practice in Flotation of Low and Medium Iron Sulfide Content ...
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.
US20110155651A1 US12/960,041 US96004110A US2011155651A1 US 20110155651 A1 US20110155651 A1 US 20110155651A1 US 96004110 A US96004110 A US 96004110A US 2011155651 A1 US2011155651 A1 US 2011155651A1 Authority US United States Prior art keywords feed sulfide valuable metal flotation copper Prior art date Legal status …
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 the ore particles in flotation process.
Srdjan M. Bulatovic, in Handbook of Flotation Reagents, 2007 Processing characteristics of a massive sulfide ore. When using a conventional flotation reagent scheme and flowsheet, only a few of these ores respond (i.e. lime + NaCN + collector), giving extremely poor metallurgical results. The majority of these ores require a specific treatment process to achieve satisfactory …
Flotation Reagents & Collectors. Froth flotation is the most widely used industrial process for the separation of finely liberated minerals. The process involves the aeration of minerals in water in the presence of flotation reagents which facilitate the attachment of air bubbles to and levitation of select minerals.
This slurry is processed though the several flotation stages. The process recovers all valuable components of the ore, such as zinc, copper and precious metals. In the first stage of the flotation process (bulk flotation), the slurry (with reagents) is pumped into flotation tanks and injected with air to create bubbles.
Supply capacity : An annual output of 50000 tons SIBX xanthate is a collector, ability is applied to the collector of copper, lead, zinc, nickel sulphide ore collector ability for sulfide ores of precious metals is strong, also apply copper, lead ore flotation containing partial oxidation can also be used in hydrometallurgy precipitation agent for rubber vulcanization accelerator.
Process Material input Air emissions Process wastes Other wastes Copper concentration Copper ore, water, chemical reagents, thickeners Flotation wastewaters Tailings containing waste minerals such as limestone and quartz
Copper Sulfide Flotation Reagents. Lime is added to the Ball Mill by a Cone Type Dry Reagent Feeder. Other reagents, such as cyanide, xanthate, and a frother are fed and controlled by No. 12A Wet Reagent Feeders to the classifier and to the conditioner ahead of flotation. Sampling. Automatic Samplers are provided for the sampling requirements.
flotation stage was the same as it is on the industrial scale in the concentrator "Veliki Krivelj". The aim was to get an insight how high is the copper recovery from the ore, liberated from oxide minerals, in the leaching stage. Potassium ethylxanthate (PEX) was used as a flotation reagent, while as an aero promoter AP 3418
Flotation reagents consist of copper sulfate as activator, PAX and AF208 as collector and the frother is Dowfroth 250. Flotation is conducted at natural pH (O'Rourke et al., 2000). At the Snip Mine in British Columbia, Canada, the gold ore is floated at natural pH value (8.5) using Aerophine 3418A and a dithiophosphate; the frother is Dowfroth 250.
Of the chelating reagents tested, potassium octyl hydroxamate, a water-soluble reagent, exhibits unusual potential for the flotation of copper oxide minerals. Because of its long alkyl chain, copper octyl hydroxamates are very hydrophobic and the contact angles measured on copper oxide minerals treated with this reagent are high.
STEP 3: After this flotation machine, if you want to the dry copper ore, you also can use the dryer after flotation machine. The mixing tank can make the copper ore more pure in the effect of chemical reagent, after mixing, the copper ore will come into the flotation machine, which is the ending machine in this flotation line.
Ghiani M., Satta F., Barbaro M. and Passariello B.. Flotation of sphalerite from pyrite by use of copper xanthate and sodium cyanide. Reagents in minerals industry, ed. Jones M. and Oblatt, IMM 1984. Google Scholar
141 electroplating coatings, copper salts, reagent in analytical chemistry, medicine, wood preservative, process 142 engraving and lithography, ore flotation, petroleum industry, synthetic rubber, steel manufacture, and 143 treatment of natural asphalts.
Flotation reagents have two important structural features: a functional group consisting of donor atoms or ligands, and a substituent group, which is hydrophobic consisting of alkyl aryl hydrocarbon chains in the case of collectors and frothers, or hydrophilic in the case of modifiers (except for inorganic modifiers, which comprise mainly inorganic bases and metal ions).
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 ...
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Jun 08, 2021 "In order to separate lead, zinc and copper from our ore, we use a series of flotation cells and different reagents to alternatively float or depress minerals," stated Brad Bunn, senior metallurgical engineer at the Brushy Creek Mill. "The reagents allow selected minerals to attach to air bubbles, which are produced by the flotation machines.
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 the ore particles in flotation process.
US2180926A US241394A US24139438A US2180926A US 2180926 A US2180926 A US 2180926A US 241394 A US241394 A US 241394A US 24139438 A US24139438 A US 24139438A US 2180926 A US2180926 A US 2180926A Authority US United States Prior art keywords copper flotation biguanide biguanides substituted Prior art date Legal …
A novel flotation promoter used in the concentration of copper bearing ores for the efficient selective flotation of copper values, including chalcopyrite, with suppression of iron pyrites; the promoter comprising a sodium sulfate of an aliphatic hydrocarbon having a carbon chain in excess of 12 carbons and chemically combined with at least one mole of the C2-C3 alkylene …
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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 ...
Kemcore continues to be instrumental in procuring a complete suite of reagents for our gold/copper flotation plant. I do not hesitate to recommend Kemcore services for Xanthate, DTP's plant reagent supply, especially when procuring out of China.