Differential froth flotation of sulfide ores Nokes, Charles M. Title: Differential froth flotation of sulfide ores. United States Patent . Abstract: This invention relates to a process of froth flotation in which certain metalliferous sulfides are depressed by means of novel inorganic chemical agents or compounds exhibiting a selective ...
The metallic sulphide particles of ore are preferentially wetted by oil and the gangue particles by water. (B) Froth floatation process used for the concentration of sulphide ore uses sodium ethyl xanthate, C 2 H 5 O C S 2 N a as collector. Other examples of collector .
By way of example, two flotation tests were conducted on fresh samples of reagentized flotation slurry from a complex massive sulfide copper/lead/zinc ore assaying % Copper, % Lead, and % Zinc to establish the improvement in sulfoxy radicalcontaining reagent effectiveness by addition of .
Sulfur 17. Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. ()Metal sulfides react with halogens, forming sulfur and metal salts. ()Microbiallyinduced corrosion (MIC) or biogenic sulfide corrosion are also caused by sulfate reducing bacteria producing sulfide that ...
Flotation behavior of nickel sulfide ore in a cyclonic flotation column 775 In the flotation system, the density of mineralized bubbles (ρm) is much smaller than that of the fluid (ρ), and generally speaking, the density of particles (ρp) that cannot adhere to bubbles is much higher than that of the fluid (ρ).
Fig. 2 Flowsheet showing the treatment of flotation concentrates of lowsulfide platinumcontaining ores Platinum Metals Rev., 2004, 48, (3) 127. maximum drop in recovery is seen with a L:S (liquid:solid) ratio change from 3 to 2. Variations in the slurry density in the range L:S = 3Œ5 have practically no effect on the platinum metals recov eries. When the chlorination time was increased ...
· In the flotation of sulfide ores, nonsulfide gangue is purported to report to the concentrate by entrainment. While it is long known that particle size affects entrainment, plant practice suggests that certain gangue minerals ( mica) entrain .
22/03/1996 · Provided is a method for processing a goldbearing sulfide ore (102) which involves maintaining the ore in a substantially oxygenfree environment, preferably beginning with comminution of the ore and ending when a desired final concentrate (116), enriched in sulfide minerals, is obtained by flotation.
· Sodium sulfide manufacturers as an inhibitor for the inhibition of sulfide ores are mainly two aspects generally considered one Na2S hydrolysis HSHSexclusion sulfide mineral surface itself while adsorbed xanthate adsorption on mineral surfaces to increase the hydrophilicity of the mineral surface the other hand, that not only act as a disincentive Na2S HSadsorbed on mineral.
Conventional floatation treatment has poor effects on recovering CuCo sulfideoxidized mixed ores due to the high oxidation rate and large amount of carbonaceous mud of the ores. The research results showed that the preremoval of carbonaceous mud asynchronous flotation process got a better flotation results than the conventional process.
Current Situation on Flotation of CuPbZn Sulfide Ore JianTao Lang1, SiQing Liu2,*, Xu Dong3,Yi Pei4 1,2,3,4 Kunming University of Science and Technology, Kunming City, Yunnan Province, China * Keywords: Copperleadzinc sulfide ore, Flotation process, Separation of bulk concentrate, Flotation column Abstract. In the flotation of copper lead zinc polymetallic sulfide ...
The efficiency of flotation of sulfide minerals is controlled by a number of variables, one of which is the particle size and configuration of the material being floated. In general, the greater the quantity of slime bearing constituents, the poorer the separation of minerals in gangue. In most primary copper deposits, the naturally occurring slimes and that produced by beneficiation are of ...
The Use of A Particulate Bed Electrode for the Electrochemical Investigation of Metal Sulfide Flotation., Aust. J. Chem., 26, 1973, 1635. CrossRef Google Scholar 23).
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Calibre sulphide flotation parameters: The flotation test results described below were derived from first grinding the whole ore sample (grading g/t gold, % copper, g/t silver, % tungsten trioxide and % sulfur) to P80 passing 75 m. µ Subsequent sulphide flotation testing indied a good response to a standard
However, it is known that, for sulfide minerals, the best recoveries are usually obtained when conventional flotation cells process particle sizes in the ranges of 30 µm to 150 µm. In industrial operations, particles that are outside this range are generally reported in tailings, due to the
Leadzinc sulphide ore contains lead sulphide (galena), and zinc sulphide (sphalerite). In the first flotation stage, galena is rendered hydrophobic with an organic collector such as xanthate, while sphalerite is kept from floating by depressants, and in the second flotation stage, activator was used to activated zinc flotation. Since the organic regent used are different in the two flotation ...
· This study presents sulfide ores with lead %, % from Laos, using a grinding (grinding fineness, 80%). Then, the lead ores is recovered by flotation first.
· Therefore, under conventional flotation conditions, guar gum is difficult to use as an inhibitor of gangue minerals with better natural flotation, such as sulfide ore and talc. Wang et al . [ 21 ] used a dodecylamine/sodium oleate surfactant to flocculate and separate muscovite and quartz, and studied the selfassembly mechanism of the flotation agent and its inhibition mechanism on quartz.
· Flotation Behavior of Complex Sulfide Ores in the Presence of Biodegradable Polymeric Depressants. Muhammad Badar Hayat,1,2 Lana Alagha,1 and Syed Mohammad Sannan3. 1Department of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO 65401, USA. 2Mining Engineering Department, University of Engineering and ...