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magnetic separation of mgo and cao process

Abstract. In order to recycle the phosphorus in P-bearing converter slag and make it used as slag phosphate fertilizer, the effect of MgO and MnO in P-bearing steelmaking slag on phosphorus existence form, P 2 O 5 solubility and magnetic separation behavior were researched systematically. The results show that the phosphorus in slag is mainly in the form of n2CaO SiO 2-3CaO P 2 O 5 (for

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  • separation of sio from mill
    separation of sio from mill

    Upgrading of raw vanadium titanomagnetite concentrate. deportment of the impurities and major minerals Experimental results showed that magnetic separation increased the Fe grade by 4 compared with the raw concentrate while the total content of Al 2O 3 SiO 2 MgO and CaO impurities decreased from to Process mineralogy studies confirmed that

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  • Magnesium oxide: A Forgotten Specialty Chemical
    Magnesium oxide: A Forgotten Specialty Chemical

    magnesium oxide (MgO) and the processes used to manufacture this compound are not ... cyclone, flotation, magnetic separation of elements, color grading, purification, grinding and final sieving. Normally the concentration and purification steps are done after ... which is a fairy low and inert component in the tanning process (compared to CaO

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  • Recycling effect of residual slag after magnetic
    Recycling effect of residual slag after magnetic

    The authors have found in their previous work that phosphorus exhibits remarkable segregations in the industrial hot metal pretreatment slag and it exists as Ca 3 P 2 O 8-Ca 2 SiO 2 solid solution together with FeO-CaO-SiO 2-MnO-MgO matrix.Since their magnetic property of each phase is significantly different, it is possible to separate each phase with the aid of superconducting strong

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  • Steelmaking Slag Beneficiation by Magnetic Separator
    Steelmaking Slag Beneficiation by Magnetic Separator

    production. The slags with particle size of -10 mm were enriched by the magnetic separator resulting and increase in Fe grade from 18% to 33%. The use of BOF slag in sinter blend provided additional Mn, CaO, MgO and introduced a good solution to environmental problems. Keywords: Basic Oxygen Furnaces Slag, Sinter, Solid Waste, Tumbler Index, RDI

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  • The effecT of cao on The recovery of feand niIn a vacuuM
    The effecT of cao on The recovery of feand niIn a vacuuM

    was 100:65.5; when the amount of CaO was 22.64% (the mole ratio of CaO/Si was 1:1), the recovery of Fe and Ni reached 84.33% and 97.00% in the vacuum carbothermal reduction-magnetic separation process, and the enrichment ratios of Fe and Ni were maximized, reaching 6.32 and 6.72, respectively. In addition, the recovery of Mg in the reduction

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  • Recycling Effects of Residual Slag after Magnetic
    Recycling Effects of Residual Slag after Magnetic

    CaO–SiO 2–MnO–MgO matrix. Since the magnetic property of each phase is significantly different, it is pos-sible to separate the phases with the aid of a superconducting strong magnetic field. By applying a strong magnetic field of 0.5 to 2.5T to the crushed slag, more than 60% of the concentrated phosphorus phase in the slag was recovered

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  • Study of Binary, Ternary, and Quaternary Basicity in
    Study of Binary, Ternary, and Quaternary Basicity in

    Then, the wet magnetic separation process was continued to separate ferronickel from impurities. The result showed that the optimum basicity for the selective reduction of saprolitic nickel ore was 0.6 of ternary basicity (CaO + MgO/SiO 2), modified by CaO addition. It produced 16.11% and 50.57% for

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  • Novel Process of Ferronickel Nugget Production from
    Novel Process of Ferronickel Nugget Production from

    like the rotary hearth furnace (RHF). The effects of temperature and basicity of the slag on the separation between the slag and metal were investigated, the results revealed that it is reasonable to achieve the fer-ronickel alloy nugget directly at 1400 C when the quaternary basicity ((m CaO+m MgO

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  • AU2006337405B2 - An improved process for the preparation
    AU2006337405B2 - An improved process for the preparation

    The present invention provides an improved process for the preparation of MgO of high purity 99% from salt bitterns via intermediate formation of Mg(OH)obtained from the reaction of MgCl and lime, albeit indirectly, i.e., MgCl is first reacted with NH in aqueous medium and the slurry is then filtered with ease. The resultant NHC-containing filtrate is then treated with any lime, to regenerate

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  • Upgrading of raw vanadium titanomagnetite
    Upgrading of raw vanadium titanomagnetite

    deportment of the impurities and major minerals. Experimental results showed that magnetic separation increased the Fe grade by 4% compared with the raw concentrate, while the total content of Al 2O 3, SiO 2, MgO, and CaO impurities decreased from 12.35% to 7.73%. Process mineralogy studies confirmed that

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  • Beneficiation and mineral processing of magnesium minerals
    Beneficiation and mineral processing of magnesium minerals

    Mar 29, 2016 3.3) PRODUCTION PROCESSES OF MAGNESIA (MgO) Raw materials and preparation: For the production of magnesia products (DBM, CCM, FM), the most important raw materials are: 1) Magnesite (magnesium carbonate) = MgCO3 (dry process) 2) Brucite (magnesium hydroxide) = Mg(OH)2 (dry process) 3) Bischofite (magnesium chloride) = MgCl2•6H2O (wet process

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  • DRI GRINDING Separation Hematite Et Cao | Crusher Mills
    DRI GRINDING Separation Hematite Et Cao | Crusher Mills

    separation hematite et cao – liming Crushers, Raymond Mill … In this paper,test of mineral processing were finished on the refractory hematite limonite … of magnetic separation at high intensity and … et al;Experimental

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  • Materials | Free Full-Text | Enrichment Characteristics of
    Materials | Free Full-Text | Enrichment Characteristics of

    In the process of magnetic separation, only strong magnetic materials, such as metallic iron and magnetite, can be retained in the magnetic field in the magnetic separation tube, while other diamagnetic or paramagnetic materials, such as slag and residual carbon, will remain with the tail slag in the flowing water

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  • Effect of MgO and CaCO3 as Additives on the
    Effect of MgO and CaCO3 as Additives on the

    process involved adjustment of the basicity of the slag to an appropriate level to improve the separation behavior of iron and slag, resulting in the content of TiO 2 in the titanium slag being lowered to only 30–33%.11) Hence, the TiO 2 could still not be recovered effectively. Gao et al.12) reported on Effect of MgO and CaCO

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  • Separation and recovery of iron and nickel from low
    Separation and recovery of iron and nickel from low

    Nov 01, 2020 The process may occur as follows: the MgO x FeO 2−x SiO 2 group can be initially reduced to a transition phase (MgO x CaO y FeO 2−x−y SiO 2) and then further reduced to the MgO x CaO y SiO 2 group. This may occur mainly due to the obvious difference in absorbed microwaves between

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  • CN110090731B - Process for dressing low-grade
    CN110090731B - Process for dressing low-grade

    The invention provides a process method for low-grade magnesite beneficiation by adopting magnetic fluid, which comprises the following steps: crushing, stirring, screening, grinding, slurry mixing, magnetizing, magnetic separation and other steps. After the low-grade magnesite is crushed in two stages, the stirring and water washing vibrating screen ore washing process of a vertical turbulent

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  • US7771682B2 - Process for the preparation of
    US7771682B2 - Process for the preparation of

    The process provides for the preparation of MgO from the reaction of magnesium salt and alkali/lime. The crude Mg(OH) 2 is directly calcined and then treated with water to disintegrate the mass spontaneously to yield a slurry and dissolve away the soluble salts. This slurry is much easier to filter and wash than the original Mg(OH) 2 slurry, which helps to speed up the purification operation

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  • Enrichment Characteristics of Cr in Chromium Slag
    Enrichment Characteristics of Cr in Chromium Slag

    Aug 30, 2021 melting separation process or magnetic separation process, respectively. The mass and composition ... MgO, CaO, and SiO2 content were de-tected by wavelength dispersive X-ray fluorescence spectrometry method. The composi-tion of the dry chromium slag

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