آخرین محصولات
Feasibility Study of Differential Flotation of Cu–Pb–Zn ...
In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite, galena, cerussite, hemimorphite and iron oxide minerals with 5.04% CuO, 1.61% PbO, 2.07% ZnO and 56.40% SiO 2.The experimental design methodology (RSM) was conducted to investigate the effect of ...
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Chacarilla-Flotation of Chacarilla copper ...
Abstract:A certain copper ore in Chacarilla area from Bolivia, with the high Cu content of 2.74%, belongs to one type of high grade and high mud content complex copper oxide ore.In order to make full use of the ore, the raw ore was classified and pre-discarded by 0.18mm., the barren rocks, which accounted for 47.03% of the raw ore (－0.18mm size fraction), could be pre-discarded, while …
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Sulphidizing Flotation of Copper Oxide Ore | Scientific.Net
The copper oxide ore in Dali, which contains 0.69% of copper and 11.24g/t of silver, was beneficiated by sulphidizing - xanthate flotation method. The flotation tests were carried out systematically with sodium sulfide as sulphidizing agent and butyl xanthate + ammonium dibutyl dithiophosphate as the combined collectors. Through closed-circuit test, a copper concentrate with 18.34% of Cu grade ...
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Vulcanization Flotation Of Copper Oxide Ore - Yosoar
In the copper oxide flotation, direct flotation method usually can not achieve better results. Sulfuration flotation method is the main flotation method for treating copper oxide ore and mixed ore at home and abroad. For malachite, azurite, and red copper. Mine-based copper oxide ore can get better indicators. The method used to treat the mixed ore is … Vulcanization Flotation Of Copper ...
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Direct Flotation Of Copper Oxide Ore - Yosoar
Copper oxide ore is produced in the Philippines, Pakistan and other regions. The monthly supply is about 1,000 tons to 2,000 tons. Copper oxide (CuO) is a black oxide of copper. The most common on the market today is 98% copper oxide and 99.95% copper oxide. The flotation method is still the main method for the treatment of copper oxide ore.
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Flotation and Tailing Discarding of Copper Cobalt Sulfide ...
Download Citation | Flotation and Tailing Discarding of Copper Cobalt Sulfide Ores Based on the Process Mineralogy Characteristics | The mineral composition of copper–cobalt ores is more complex ...
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Review, Evolution and Optimization of the Kansanshi Mixed ...
The traditional method applied for the flotation of copper oxide or mixed ores is sulphidisation, which was first developed with industrial success on Pb–Zn oxide ores in Australia (Crozier, 1991). The method involves multistage addition of sodium sulphide (Na 2 S), sodium hydrogen sulphide (NaHS), or ammonium sulphide (NH 4) 2
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Current Status of Copper-Ore Processing: A Review ...
Abstract An analysis of flowsheets for processing sulfide and oxide copper ores, reagent modes, processing equipment, and flotation indicators in some domestic and foreign processing plants and productions is carried out. Autogenous and semiautogenous mills are commonly used in the primary grinding stage in ore processing plants, which excludes medium and fine crushing. The alternative is …
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Copper Flotation - Mineral Processing & Metallurgy
Flotation of Copper Ores In most plants engaged in the flotation of ores containing copper-bearing sulphide minerals with or without pyrite, pine oil is employed as a frother with one of the xanthates or aerofloat reagents or a combination …
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Sulfidisation Promotion Effect of Ammonium Sulfate on ...
Copper oxide ores are commonly difficult-to-float due to its molecular structure, and adding sodium sulfide as activator is necessary; however, its dosage to the flotation pulp must be strictly controlled, as it is also a powerful depressant for copper sulfide minerals, and will, if in excess, depress the activated copper oxide minerals.
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US4022686A - Flotation process for copper ores and copper ...
A flotation process in which copper ores or copper converter slags are ground and firstly have added thereto benzotriazole or alkyl benzotriazole as an activator and secondly one or more collectors selected from the group consisting of xanthates, dithiophosphates, thiocarbamate esters, dithiocarbamates, mercaptans and dixanthogens and further, if desired, a promoter such as kerosene, light oil ...
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Leaching of Flotation Concentrate of Oxide Copper Ore from ...
Abstract: Acid leaching of flotation concentrate of oxide copper ore containing mainly of malachite was performed in a standard agitation tank with various parameters. The effects of solid to liquid ratio, sulfuric acid concentration, agitation speed, leaching temperature and time were examined to …
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Copper extraction - Wikipedia
Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.. As in all mining operations, the ore must usually be beneficiated (concentrated).
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Flotation of mixed copper oxide and sulphide minerals with ...
The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is currently investigating options to recover copper oxide and sulphide minerals using flotation by blending their primary sulphide ore with oxide ores.
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US3845862A - Concentration of oxide copper ores by ...
Oxide copper ores in subdivided form may be concentrated in a flotation separation process by slurrying said ores in an aqueous solution of a flotation reagent followed by generating gas bubbles in the slurry to float the oxide copper and recovering the concentrated oxide copper from the surface of the slurry, wherein the flotation reagent is a quaternary hydrocarbyl ammonium or phosphonium ...
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Mechanism and application on sulphidizing flotation of ...
The micro-flotation results show that combined use of NaBX+DDA yields better effect than using NaBX at pH 7-11 only, and the optimal molar ratio of NaBX to DDA is 2: 1. The actual ores flotation shows that when the dosage of NaBX+DDA is (100+54) g/t, the copper concentrate grade and recovery are 15.93% and 76.73%, respectively.
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Treatment of Mixed Sulfide Oxide Ores of Copper
Many ores containing oxide copper are hard to settle or filter at flotation fineness as they come from the mine and they all are much worse after contact with acid. Settling areas of 40 or 50 sq. ft. per ton-day are not uncommon; for a 5000-ton plant, a small-scale operation, this would mean thickeners 400 or 500 ft. in diameter.
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FLOTATION OF COPPER SULFIDE ORES - STEPHAN CHEM CO,US
I claim as my invention 1. A flotation promoter for the selective water flotation of thin finely ground copper-bearing sulfide ores and the suppression of iron pyrites therein, finely ground state consisting essentially of an aliphatic hydrocarbon sodium sulfate having a C 8 - C 10 carbon chain and having propylene oxide chemically combined therewith in an amount in the range of 5 to 30 mols.
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Copper Mining and Processing: Processing Copper Ores ...
Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different ...
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Enhanced sulfidation xanthate flotation of malachite using ...
Sulfidation xanthate flotation is the most widely used method for dealing with copper oxide ore 9, 12, 13. Sodium Sodium sulfide can promote the flotability of oxide copper ore 14, resulting in ...
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Flotation of Copper oxide ore - Fodamon Machinery
Flotation of Copper oxide ore The floatability of copper oxide ores is generally worse than that of copper sulfide ores, and is greatly influenced by the existing form of copper in minerals and gangue composition.
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Sulphidizing Flotation of Copper Oxide Ore | Request PDF
The copper oxide ore in Dali, which contains 0.69% of copper and 11.24g/t of silver, was beneficiated by sulphidizing - xanthate flotation method.
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The Effect of Oxidation on the Flotation Behaviour of ...
In this paper, the flotation behaviour of nickel-copper ores processed in the Sudbury area is discusse~ with emphasis on the effect of oxidation on individual minerals, pnmarily pyrrhOlite. In general, moderate oxidation of a freshly ground ore promotes the flotability of all principal sulphides in the ore leading to a bulk flotation concentrate.
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US3827557A - Method of copper sulfide ore flotation ...
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 oxides.
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Oxide Flotation Collector | Collector for Copper Oxide Ore
In this flotation tests and evaluation for the best collector for copper oxide "ore" 911Metallurgy continues with material that's 60% Oxide copper.. Sample C: 1.7% Copper about 60% Oxide Cu . Rougher Tests:. Both reagents appear to behave similarly as the "blue dots" are seemingly a continuation of the trend started by "red dots".
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RECOVERY OF COPPER FROM OXIDE COPPER ORE BY …
Usually sulphide copper ores are processed by froth flotation whereas oxide copper ores are treated with acid leaching processes globally. In the first part of this study, froth flotation of copper ore with hydroxamate type collectors and traditional flotation after sulphidisation by using sulphydryl type collectors was tried.
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copper oxide flotation|miningpedia
Froth flotation is a method of separating ores using the difference in physical and chemical properties of mineral surfaces. It is currently the main method for the flotation of copper oxide. Relatively speaking, froth flotation can be used to separate malachite and azurite. However, chrysocolla and copper phosphate are difficult to float.
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Recovery of PGMs from an oxide ore by flotation and leaching
The characterisation of the non-sulphide PGM ore used in this study indicated that the ore is enriched in oxide iron minerals as a result of weathering. In the flotation work, the maximum PGM flotation recoveries achieved using the sulphide co-collector schemes were 55.1% 3E (Pt, Pd and Au).
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Flotation of mixed copper oxide and sulphide minerals with ...
Copper oxide ores Copper sulphide ores Flotation collectors Mineral processing Alkyl hydroxamates abstract Sherwood Copper's Minto Mine processes a high grade copper–gold deposit in Yukon, Canada.
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Copper Flotation - Mineral Processing & Metallurgy
A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical 3,000 ton per day operation. In general most operations of this type have two or more parallel ...
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