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Harness the power of our experience with Outotec flotation plants With expertise based on over 100 years in flotation technology and over 10000 flotation cells installed around the world Outotec has the experience you need to maximize your operations'' productivity and efficiency
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1 Sulfide in the flotation concentrate was transformed into oxide on oxidizing roasting at high temperature which facilitated the subsequent leaching of copper and zinc in sulfuric acid solution
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The basic steps in this process include 1 preparation of a zinc sulfate solution by leaching zinc oxide calcines produced by the roasting of sulfide concentrates in dilute sulfuric acid 2 purification of the resulting zinc sulfate solution and 3 electrolysis of the purified solution
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Recovery of metal values from copper slags by flotation and roasting with pyrite carried out with sulphuric acid The influence of experimental variables such as the amount of sulphuric acid
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2 in sulfuric acid slag there is rich Fe2O3 magnetic separation mainly for high magnetic Fe3O4 with low magnetism so the iron content of tail slag accounts for more than 90 of the original slag 3 grade of iron ore products completely on magnetic separation is 55 to 59 bad effect of desulfurization impuritiesquality of the finished product is relatively low
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A hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate The process involves forming a slurry of the sulfidic flotation concentrate in an acid solution and subjecting the slurried flotation concentrate to a chlorine leach at atmospheric pressure followed by an oxidative pressure leach
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These include zinc scrap spent dry cell batteries zinc dross resulting from the zinc cathode industry and zinc ash obtained from galvanizing processes The latter two materials contain chlorides which render the recovery of zinc by sulfuric acid electrowinning unsuitable Rab and EISayed 1995
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Sulfuric acid also spelled sulphuric acid or in old texts as oil of vil is one of the strong mineral acids and has a number of practical uses in refining The acid differs from hydrocloric acid and nitric acid in that it contains two hydrogen atoms that can be ionized in water
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Star trace copper leaching agent may be dissolved copper minerals are many kinds of leaching agent but actually only water sulfuric acid ferric sulfate solution ammonia solution and chloride solutions in industrial applications are usedhe most commonly used copper leaching agent is sulfuric acid
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Froth flotation cells to concentrate copper and nickel sulfide minerals Falconbridge Ontario Froth flotation is a process for separating minerals from gangue by taking advantage of differences in
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Copper smelter slag and copper smelter slag flotation tailings were leached using sulphuric acid solutions without or with the addition of either ferric sulphate or hydrogen peroxide Copper extraction from the slag was typically found to be twice as high as that from the slag flotation
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Abstract Leaching and recovery processes for zinc and copper from brass slag by sulfuric acid were carried out and iron and aluminum were also precipitated as hydroxides in addition to silica gel The factors affecting the performance and efficiency of the leaching processsuch as agitation rate leaching time acid concentration and temperature were separately investigated
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With the use of wash water a more fluid froth develops with a higher grade of hydrophobic material which means a better concentrate in direct flotation or a higher recovery in reverse flotation The internal launders design promotes the optimal lip length froth area and transportation distance for collection of froth increasing froth recovery
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Zinc Zinc is a chemical element with symbol Zn and atomic number 30 It is the first element in group 12 of the periodic some respects zinc is chemically similar to magnesium both elements exhibit only one normal oxidation state 2 and the Zn 2 and Mg 2 ions are of similar size
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slag granulation mineral flotation cell 19 slag granulation mineral flotation cell 19 Distribution of elements in slag matte and speiss during settling Distribution of Elements in Phase Separation of Slag Matte Speiss during Settling Process 2 and all other people from Boliden Mineral AB R246nnsk228r Smelter Plant who were involved in this continuous procedure including
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The final lead concentrate is the copper rougher cell tailings Zinc circuit feed is the tailings from the bulk copperlead circuit It is pumped into a conditioner and treated with copper sulfate for activation of the sphalerite zinc The zinc flotation circuit consists of three
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PbZn ore divides into sulfide PbZn ore and oxide PbZn ore Flotation is the most widely used in separating sulfide PbZn ore to separate zinc and plumbum sometimes for separating sulfide iron and other minerals Sulfide PbZn ore process divides into priority flotation process mixseparating flotation asynchronous flotation and so on It is a high technological enterprise that
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In practice the commonly used method for the recovery of oxidized lead and zinc minerals from ores at present is flota tion Onal G et al 2005 The flotation of oxidized lead and zinc minerals particularly zinc minerals is much more difficult than the flotation of corresponding sulfide miner als
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Get the best flotation performance for your fine ores with Outotec ColumnCell across all duties in flotation circuits They are available in a wide range of sizes allowing high capacity and the most appropriate heights for different duties
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May 01 2012· Leaching of converter slag flotation tailings from the Svyatogor copper smeltery Sverdlovsk region Russia by sulfuric acid solutions containing ferric ions was investigated The solutions were obtained using oxidation of ferrous sulfate by a consortium of moderately thermophilic acidophilic chemolithotrophic microorganisms including Sulfobacillus species
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In this work oxidizing roasting was combined with leaching to separate copper lead and zinc from a concentrate obtained by bulk flotation of a lowgrade ore sourced from the Jiama mining area of Tibet The flotation concentrate contained 779 Cu 2200 Pb 481 Zn 824 S and 1215 CaO copper sulfide accounted for 7697 of the copper lead sulfide for 2555 of the lead and zinc
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The data on sulfuric acid consumption g per 1 kg of the solid phase during chemical leaching of converter slag flotation tailings at 70 °C and on specific consumption of sulfuric acid g per 1 g of leached copper are presented in Fig 10
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The remaining calcine is then leached in strong sulfuric acid to leach the rest of the zinc out of the zinc oxide and zinc ferrite The result of this process is a solid and a liquid the liquid contains the zinc and is often called leach product the solid is called leach residue and contains precious metals usually lead and silver which are sold as a byproduct
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