·An innovative technology for direct reduction magnetic separation with the addition of Na 2 CO 3 and CaO was studied to upgrade copper slag assaying % Fe total and % Cu It is difficult to recover iron and copper from the slag by direct reduction since the iron mainly occurs in fayalite and the copper exists in copper
·Approximately t of copper slag CS containing 35% 45% iron is generated for every ton of copper produced during the pyrometallurgical process from copper concentrate Therefore the recovery of iron from CS utilizes a valuable metal and alleviates the environmental stress caused by stockpile In this paper a new method has
·An innovative technology for direct reduction magnetic separation with the addition of Na 2 CO 3 and CaO was studied to upgrade copper slag assaying % Fe total and % Cu
·Our proposed method a controlled molten oxidation process under 1 vol pct oxygen leads to selective precipitation of magnetite in a copper smelter slag for downstream iron separation In the present study the preroasted magnetite precipitated copper slag was treated via magnetite liberation which was realized by using high
Magnetic separation is a physical separation process that relies on the different magnetic properties of components in a mixture micron sized carbonyl iron particles zirconium ferrite steel slag and Fe Zr binary oxide Ishiwata et al 2010; Long et al 2011; Merino Martos et al dissolved heavy metals like zinc and copper can be
·Iron recovery from lead smelting water quenching slag by roasting grinding magnetic separation method proposed two routes for the selective recovery of lead copper nickel and zinc from lead slag under optimum conditions The leaching rates of lead copper zinc and nickel were 92% 60% 70% and 66%
·A novel process to upgrade the copper slag by direct reduction magnetic separation with the addition of na2co3 and cao Powder Technol 347 2019 pp 159 169 / View PDF View article Google Scholar
·tion of copper slag utilization Li Tao et al [1] studied the recycle of iron via direct magnetic separation of cop per slag which recovery ratio is just only % and hard to meet the requirement of high utilization efficien cy Direct carbon thermal reduction [3 6] is the most commonly method to deal with copper slag by which
·A novel technology modified roasting in CO CO2 mixed gas and magnetic separation was presented to recover iron from copper slag The effects of various parameters such as dosage of flux CaO
·The normal extraction and separation technologies of copper smelting slag are flotation magnetic separation hydrometallurgical and pyrometallurgical Zhou et al 2022 It can be used as an additive for the modification of high basicity basic oxygen furnace slag to achieving waste treatment with waste He et al 2022 The traditional
·It is very difficult to extract valuable metals from copper slag and nickel laterite through traditional separation processes due to their complex mineral structure In this work a selective co reduction and magnetic separation process was developed to economically and eco friendly clean copper slag and synchronously upgrade nickel laterite
·In this study a new technique was proposed for the economical and environmentally friendly recovery of valuable metals from copper smelting slag while simultaneously upgrading nickel laterite through a co reduction followed by wet magnetic separation process Copper slag with a high FeO content can decrease the liquidus
·for copper slag removing and immobilizing harmful elements is essential to obtain a Copper Slag as a Source of Iron An Overview 31 magnetic separation to obtain a magnetic concentrate with % total iron and % Cu and a recovery rate of % for iron and % for copper The non magnetic
·Keywords copper tailings; iron; direct reduction; magnetic separation; recovery; process optimization 1 Introduction Approximately 30 million tons of copper slag is an nually produced worldwide [1] for China the leading producer of copper accounting for nearly one third of the total [2] Slag contains various valuable metals cop
·Before doing dry magnetic separation the waste copper slag reduced by the reduction reaction step was first crushed to a particle size of 75 104 μm in diameter This is to liberate the iron rich parts contained in the reduced waste copper slag from the remaining silicon rich parts as shown in Fig 3 b And then several dry magnetic
·Iron grain growth during deep reduction roasting is important for iron enrichment from copper slag CS through magnetic separation In this work a novel method of additive free activation roasting including oxidation and subsequent reduction roasting was proposed to increase the iron grain size then the iron was extracted by magnetic
DOI / Corpus ID 104335260; A novel process to upgrade the copper slag by direct reduction magnetic separation with the addition of Na2CO3 and CaO
·The copper slag was first thoroughly mixed with various amounts of CaO and Na 2 CO 3 according to Table 2 after which these mixtures were shaped into cylindrical samples with the diameter of 45 mm under 150 this work the MgO crucibles Ф 58 mm × 90 mm were selected as the sample container considering the predominant use of
·A novel process to upgrade the copper slag by direct reduction magnetic separation with the addition of Na2CO3 and CaO Powder Technol 347 2019 pp 159 169 / View PDF View article Google Scholar
·Preparation of Fe Cu bimetal from copper slag by carbothermic reduction magnetic process for activating persulfate to degrade bisphenol A Author links open overlay panel Zuozhen Tang a Wen Yu b Fe Cu was prepared from CS through a carbothermal reduction and magnetic separation process The prepared Fe Cu has an
·Various studies have been conducted to recover copper and cobalt using magnetic separation and sulfuric acid leaching of copper slag containing Cu Co Fe The sample was subjected to wet grinding to allow magnetic separation producing % cobalt while % of copper and % of iron remained in the tailings [ 12 ]
·The reductively roasted copper slag with mean particle size of μm was separated at different magnetic results are shown in Fig 1b The Fe recovery SiO 2 content and SiO 2 recovery in the concentrate increase with magnetic intensity whereas the Fe content shows a decreasing trend The independent metallic iron
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