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Abstract Copper slag is produced in large amounts in seven copper smelter plants in Chile and it is estimated that around four million tons of slag are disposed every year and another 4045 million tons are historically cumulated Copper slag contains iron in the range of 4245 which can be recovered and recycled along with the contained copper to obtain an ironcopper alloy and a...We serves many industries, including construction crushing: jaw crusher, sand making machine; Industrial milling: ultrafine grinding mill, Raymond mill; Ore beneficiation: ball mill, magnetic separator; Green building materials: rotary dryer, dust collector; Tails treatment: briquette machine.
Related Equipments: two PE600×900 jaw crushers, two impact crushers, two cone crushers, two sand makers and three circular vibrating screens.
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Ore processing plant means that extracts and purifies some elements in the raw ore through a series of complex ore beneficiation flow and professional beneficiation equipment. The refined concentrate powder is mainly used in metallurgy and industry base.
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Stone crusher plant whose design production capacity is 50-800T/H is mainly composed of vibrator feeder, jaw crusher, impact crusher, vibrating screen, belt conveyor, centralized electronic control and other equipment. Configuration of cone crusher and du
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The Fe3O4 and Fe2SiO4 in copper slag were successfully reduced to metallic iron by coalbased direct reduction Under the best reduction conditions of 1300 C reduction temperature 30 min reduction time 35 wt coal dosage and 20 wt CaO dosage 075 binary basicity the Fe grade of obtained iron concentration achieved 9155 and the Fe recovery was 9813
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Jan 01 2003 Therefore the basicity of AOD slag is lower than steel slag Moreover AOD slag contains much less iron than steel slag Hence recovery of iron from AOD slag is not important Perhaps the most important characteristic of AOD slag is that it contains a high amount of Cr 2543 and some Ni 02045
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Jan 10 2014 The fraction free of iron scraps obtained from this flow sheet is considered as representative sample for further tests to recover the high grade iron from LD slag Download Download fullsize image Fig 4 Flow sheet of recovery of iron compounds during the sampling of LD slag
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Jan 13 2012 Subsequently wet magnetic separation was conducted to examine the relations between iron recovery ratio and cooling conditions The results show that the slags under the four cooling conditions mainly contained dicalcium silicate RO phase Fe t O 2CaOFeAl 2 O 3 and calcium ferrite
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The present invention relates to a process for recovery of iron from copper slag This invention particularly relates to a process for recovery of iron from a waste like granulated copper slag generated during the production of copper from its ores by a pyrometallurgical method The present invention will be useful for solving the ecological and environmental issues with an added economic
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On this basis a review of a number of methods for recovery of metals from the slags was made It can be seen that a large amount of slags is produced each year They usually contain a quantity of valuable metals except for blast furnace slag and they are actually a secondary resource of metals By applying mineral processing technologies such
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May 18 2021 However researches have shown its effectiveness for ion recovery from a wide variety of slags like vanadium slags copper slags among others A combination of chlorination and carbochlorination can be harnessed for selective recovery of several metallic values like iron titanium while keeping residual aluminocalcium silicate matrix
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Nov 12 2015 On the other hand waste heat recovery from hot slags is believed to represent one of last substantial and undeveloped potentials of energy savings in the iron and steel sector 910
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Slags are the main byproducts generated during iron and crude steel production and the steel industry is committed to increasi ng and improving their recycling Over the past decades the steel production has increased and consequently the higher
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Categorized under Iron Ore Recovery From Open Hearth Slag The Hearth Doctor Inc is dedicated to selling top quality stoves fireplaces and fireplace inserts that burn either wood gas pellets or coal We pride ourselves not only with excellent customer service and products but also with the expert advice and professional installation that
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Mar 12 2021 Large amounts of solid wastes are produced in copper and aluminum smelting processes which not only cause losses of valuable resources but also threaten the ecology and environment In this study a reductionsulfurization smelting method was used for recovering Cu and Co from converter slags by using spent pot lining SPL as the reductant CaO was added to fix the fluorine from SPL
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Oct 15 2018 Lowgrade bauxite ores are not favorable in the conventional Bayer process for alumina production as they are producing more bauxite residue red mud and accompanying lower alumina yield than highgrade ores In the current study the thermodynamics and characterization of calciumaluminate slags
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recovery due to the fact that copper in the converter slag is mainly in the form of metallic copper and chalcocite As the reducing agent dosage increased iron recovery
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Carbothermic Reduction of Bauxite Residue for Iron Recovery and Subsequent Aluminium Recovery from Slag Leachin g Pritii Tam Wai Yin 1 Buhle Xakalashe 2 Bernd Friedrich 3 Dimitrios Panias 4 and Vicky Vassiliadou 5 1 PhD Candidate Aluminium of Greece Agios Nikolaos Viotia Greece
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The recovery and use of steel industry coproducts has More than 400 million tonnes of iron and steel slag is produced each year Slag is a mixture of silica calcium oxide magnesium oxide and aluminium and iron oxides During smelting slagging agents and fluxes mainly
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On this basis a review of a number of methods for recovery of metals from the slags was made It can be seen that a large amount of slags is produced each year They usually contain a quantity of valuable metals except for blast furnace slag and they are actually a secondary resource of metals By applying mineral processing technologies such
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By using DR followed by a magnetic separation process for iron recovery from copper slag Yang obtained iron powder of 9205 iron content with an iron recovery rate of 8101 and Wang obtained iron powder of 9296 iron content with an iron recovery rate of 9349 Both of their tests have achieved good results
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Recovery of iron from the liquid slags with further electromagnetic separation Poster Anna Semykina Volodymyr Shatokha and Seshadri Seetharaman SeetharamanSeminar materials processing towards properties June 2010 Sigtuna Sweden 3 The effect of MnO addition on the spinel crystal growth during oxidation of
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Iron recovery from a lead slag in Henan province was carried out with the technique of coalbased direct reduction followed by magnetic separation Scanning electron microscopy SEM was used to investigate the transformation of ironcontaining minerals and the particle size of metallic iron generated by coal reduction The results showed that technique is feasible for iron recovery from the
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Jan 13 2012 From granulation to furnace cooling of the slags the iron content in the recovered concentrate and the iron recovery ratio both increased This result is in agreement with the findings on phase transformation through SEM analysis Volume 83 Issue 2 February 2012 Pages 189196
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Nov 14 2013 Further higher treatment time favors the increase in iron recovery As can be seen at Fig 5 iron almost completely recovered to watersoluble form at 320 C for 300 min This fact can be used for selective recovery of zinc copper and iron from copper smelter slag Download Download fullsize image Fig 5
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The recovery of iron from slag dust Solutions Crusher Mills Cone Crusher Jaw Crushers You Can Buy Various High Quality Heavy Micronizer To eaf slag Electric Arc Furnace the recovery of metals from electric arc furnace Get Price Email contact Waste Heat Recovery Boiler for Iron and Steel
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nickel recovery from the slag involved taking pot and spoon samples at the same time as collecting granulated slag from the classifier Samples of flotation feed flotation concentrates and tailings were also collected early in 2000 and again in 2003 in order to identify recovery problems at the slag plant
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Session 8 Metal recovery and internal use of slags 1540 Abdoulay Maihatchi CNRS Universit de Lorraine Beneficiation of ironrich tailings from the mining industry 1600 Jihye Kim University of Toronto Valorisation of blast furnace slag to recover rare earth elements utilizing a pyrohydrometallurgical process
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May 18 2021 A high iron recovery of 424 from SS has been demonstrated by magnetic separation Low and high intensity magnetic separation techniques are used to recover highgrade iron from LD slags In the former permanent magnets are used which is often unsuitable for separating fine paramagnetic particles
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Iron and steel slags can be divided broadly into blast furnace slag and steelmaking slag the latter can be subdivided into hotmetal pretreatment slag basic oxygen furnace BOF slag and electric arc furnace EAF slag Because phosphorus was considered not to be present in blast furnace slag for the sake of the present study the calculations
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We investigated the effect of flux lime addition on the reduction behavior of iron oxide in copper slag by solid carbon at 1773 K 1500 C In particular we quantified the recovery of iron by performing typical kinetic analysis and considering slag foaming which is strongly affected by the thermophysical properties of slags The iron oxide in the copper slag was consistently reduced by
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Copper slag contains iron in the range of 42 to 45 which can be recovered and recycled along with the contained copper to obtain an ironcopper alloy and a final slag rich in oxides
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After reduction of the slag in accordance with the foregoing procedure the iron bearing phase is separated from the slag in the form of a metalrich matte containing 8590 percent iron A process
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Jul 18 2013 The present work is aimed at the development of a new sustainable method for the utilisation of valuable elements from the steelmaking slag In the framework of the innovative concept earlier proposed by the authors for utilisation of steelmaking slags oxidation of iron monooxide in the liquid slag was studied experimentally in different atmospheres and in the temperature range
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Apr 12 2015 The recovery of iron from iron sinking slag and lead smelter slag was investigated by desulfurizationreduction bath smelting The effects of lead smelter slag LSS to iron sinking slag ISS mass ratio and temperature were investigated in desulfurization experiments The Xray diffraction XRD and Xray fluorescence XRF analyses show that the optimum conditions are LSSISS of 37 and
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Jan 10 2014 According to them the higher recovery yield of the iron from steel slag is obtained on the slag slowly cooled This can be explained by increased amount and size of the crystalline phases and decreased glass matrix during the slow cooling of the liquid slag
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Generally the recovery range will be 6080 of the total iron present in the slag to produce a discard slag containing 820 iron The invention is further illustrated by the following nonlimiting example
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Jul 30 2013 Conclusions 1 Iron oxide in the copper slag was consistently reduced by solid carbon In kinetic analysis the relationship between 2 Iron recovery was defined as the ratio of the amount of iron clearly transferred to the base metal pool to the 3 Various kinds of solid compounds such as Mg
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iron recovery from slags As a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any sizereduction requirements including quarry aggregate and different kinds of minerals We can provide you the complete stone crushing and beneficiation plantWe also supply standalone
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No slag recovery data is available for 2019 but estimates from the US Geological Survey USGS assume that the quantity recovered will comprise approximately 50 blast furnace slag and 50 steelworks slag with a merchandise value of US 470 million Blast furnace slag accounts for 88 of the commercial value
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After aluminothermic reduction for 120 min the recovery degree of iron and copper was 9435 and 9789 respectively In addition the secondary slag stabilization was discussed and the utilization of the produced Feu alloy and the secondary slag was analyzed
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