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Froth Floatation Process This method is used for concentration of sulphide ores of copper which cause the sulphide ore particles to stick with the oil and rise to the surface in the form of froth The gangue particles being heavier remain behind at the bottom of water tank The froth is separated and concentrated sulphide ore is obtained For sulfide ores both secondary and primary froth flotation is used to physically separate ore from gangue For special native copper bearing ore bodies or sections of ore bodies rich in supergene native copper this mineral can be recovered by a simple gravity circuit Froth flotation
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Selectivity and power of frothers in copper ore flotation 517 The ore was crushed in a jaw crusher to obtain particles smaller than 1 mm in size Prior to each flotation experiment the crushed material was wet ground in a steel ball mill The size distribution of the ore used as the flotation feed is presented in Table 1 Table 1Copper sulfide ores must be concentrated before they can be economically transported to a smelter Froth flotation is part of a copper beneficiation process in which finely ground ore is placed in aerated tanks that contain a water based solution from which a copper sulfide rich froth is recovered
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Copper extraction Wikipedia Copper oxide ores have occasionally been treated via froth flotation via sulfidation of the oxide minerals with certain chemicals which react with the oxide mineral particles to produce a thin rime of sulfide usually chalcocite which can then be activated by the froth flotation This is a very practical arrangement and often a necessity when handling wet sticky ore There is evidence that this combination of crushing and grinding results in lower costs for reducing large tonnages of ore to flotation size Grinding Porphyry Copper Ore The flowsheet illustrates a typical grinding circuit with a rod mill in open circuit
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froth flotation performance obtained with a bornite rich copper sulphide ore from Okiep Copper Mine with a feed grade of 18 copper Batch flotation tests were used to assess the performance in terms of mass water recovery sulphur grade recovery and copper grade recovery relationships and the Klimpel rate constant for copper recoveryCurrently the most common source of copper ore is the sulfide ore mineral chalcopyrite which accounts for about 50 percent of copper production Sulfide ores are processed via froth floatation
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The flotation tailing from the lead section passes to a lifting conditioning tank represent the feed to the zinc flotation section The combined products flow to a zinc conditioning tank where soda ash sodium silicate and an organic colloid are a In the froth floatation process the role of the depressants is to separate two sulphide ores by selectively preventing one ore from forming froth For example to separate two sulphide ores ZnS and Pbs NaCN is used as a depressant which selectively allows PbS to come with froth but prevents ZnS from coming to froth
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Handbook of Flotation Reagents Chemistry Theory and Practice Flotation of Sulfide Ores by Srdjan M Bulatovic • ISBN • Publisher Elsevier Science Technology Books • Pub Date April The Eriez Flotation Division has supplied more than 900 flotation columns throughput the world in mineral concentrating and purification applications that include iron ore base metals gold industrial minerals fertilizers phosphate and potash energy coal and oil sands and specialty applications such as oil/water separation
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About 80 of primary copper production comes from low grade or poor sulfide or After enrichment steps the copper concentrates are usually treated by pyrometallurgical methods Generally copper extraction follows the sequence see Figure below 1 Beneficiation by froth flotation of ore to give copper concentrateCopper flotation can be also more complicated if flotation feed comes from an elevated pyritic copper ore In this investigation the effect of two different ore types high pyritic and low pyritic feeds was studied on rougher stage of industrial copper flotation circuit
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Froth flotation is widely used for separating base metal sulphide minerals in complex or One of the major challenges faced by the flotation of these ores is the ever varying grade and mineralogy as the ore is exploited Kabuda et al Flotation of Nickel Copper Sulphide Ore Optimisation of Process Parameters Using Taguchi Method 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 75 181 m was froth floated with sodium isobutyl xanthate SIBX collector at 60 70 80 90 and 100 g/t dosag
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About 80 of primary copper production comes from low grade or poor sulfide or After enrichment steps the copper concentrates are usually treated by pyrometallurgical methods Generally copper extraction follows the sequence see Figure below 1 Beneficiation by froth flotation of ore to give copper concentrateCopper sulfide ores must be concentrated before they can be economically transported to a smelter Froth flotation is part of a copper beneficiation process in which finely ground ore is placed in aerated tanks that contain a water based solution from which a copper sulfide rich froth is recovered
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The percentage of copper in the actual ore is too low for direct extraction of copper to be viable The concentration of ore is required and it is done by the Froth Flotation method Concentration of Ore The ore is crushed into a fine powder and a suspension is created in water To this are added Collectors and Froth StabilizersAfter the copper ore is crushed liquid is added to make it a slurry The slurry is a mix of valuable copper ore minerals and “worthless” rock called gangue pronounced “gang” The slurry is placed in a tank and a process called froth floatation is used to separate the copper minerals from the gangue Chemical reagents called
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Mar 27 32 This flotation process is mainly composed of ball mill flotation machine shaking table etcFroth flotation process is applied to rough processing and concentration It is widely used in reverse refractory oxides and sulphide copper minerals with an average grade of 137 total copper TCu with the goal of optimising the froth flotation process of Chingola Refractory Or Cupriferous mica chalcocite bornite chalcopyrite malachite and pseudomalachite were the significant copper minerals in the ore
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In the froth floatation process the role of the depressants is to separate two sulphide ores by selectively preventing one ore from forming froth For example to separate two sulphide ores ZnS and Pbs NaCN is used as a depressant which selectively allows PbS to come with froth but prevents ZnS from coming to frothApplication Note pH Control in Copper Flotation for Maximized Product Yield Background Copper ore may be separated from crude ore using a flotation pro cess that takes advantage of the physical as opposed to chemical properties of small copper ore particl To maximize the copper yield pH control is necessary in the flotation tanks
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