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Iron Ore Chlorination

Iron Ore Chlorination

2020-8-1  However, in order to ensure the smooth operation of iron-making and the quality of pig iron, it is generally necessary to reprocess the slag before it is used as raw material for iron-making. High-temperature chlorination volatilization method commonly used in current industrial production to remove impurity metals (generally Cu, Pb, Zn, etc.) in the slag, the main mechanism is that impurity metal oxides in the slag are chlorinated by appropriate chlorination

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Kinetics of Iron Chlorination of Roasted Illmenite Ore,

2012-9-15  The preferential chlorination reaction of iron constituents in roasted ilmenite ore was studied in an experimental fluidized bed reactor. The influence of the roasting temperature on the selectivity of chlorination reactions was also examined. It was found that preferential iron chlorination is dependent on roasted product morphology.

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Thermodynamic Consideration of the Removal of Iron

2014-4-25  It was shown that the selective chlorination of iron from titanium ore by HCl gas is thermodynamically feasible and efficient for upgrading titanium ore. Further, thermodynamic analysis showed that under certain conditions, TiCl 4 can be used as a chlorinating agent for the iron in the ore, and iron can be removed by evaporation directly from the ore as chloride gas.

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Removal of Iron from Titanium Ore through Selective

iron in the titanium ore of the titanium ore/MgCl 2 mixture. The other selective chlorination process uses HCl gas produced from the titanium ore/MgCl 2 mixture to chlorinate the iron in the titanium ore. The selective chlorination investigated in this study has the following advantages; (1) it does not involve handling of highly concentrated HCl or Cl 2

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The kinetics and mechanism of selective iron

2013-7-18  (2007). The kinetics and mechanism of selective iron chlorination of an ilmenite ore. Mineral Processing and Extractive Metallurgy: Vol. 116, No. 4, pp. 230-238.

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Removal of iron from titanium ore by selective

The iron in the low-grade Ti ore was selectively removed as iron chlorides (FeCl x [x = 2, 3]) in a dry form, and 98% TiO 2 was obtained under certain conditions. This demonstrated that the selective chlorination of low-grade titanium ore by TiCl 4 under a high oxygen chemical potential is a feasible method of producing high-grade TiO 2 directly.

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Kinetics of Selective Chlorination of Ilmenite Using

2019-5-26  The selective chlorination of iron from llmenite ore by CO-Cl2 mixtures: Part II. mathematical modeling of the fluidized-bed process. Metallurgical Transactions B 1990, 21 (2),331-340. https://doi/10.1007/BF02664201; K. Swaminathan, CH. Sridhar Rao. Chloridization beneficiation of

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IRON REMOVAL FROM TITANIUM ORE USING SELECTIVE

2009-1-15  into the system under the presence of CaCl2, HCl gas is generated and the chlorination of iron in the ore using HCl gas can proceed according to the following reactions. CaCl2 (l) + H2O (g) → HCl (g) + CaO (s) (4) FeOx (s) + HCl (g) + C (s) → FeCl2 (g, l) + COx (g) + H2O (g) (5)

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The Chlorination of Gold Ores. Digitised Collections

2020-2-20  at a pressure of loolbs. per square inch to the chlorinated ore. In 1888 Sir Wm. Crookes patented a process for the treat-ment of auriferous ores with perchloride of iron solutions in the presence of some oxidising agents, such as nitre, or man-ganese dioxide. The ore and solution were to be heated to

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Iron Removal from Titanium Ore using Selective

2009-1-15  Selective-chlorination potential (TiO x,FeCl x are satable) Ti chlorination Oxygen partial pressure potential, log p O 2 (atm) Chlorine partial pressure, log p Cl 2 (atm) The selective-chlorination of Ti ore using MgCl 2 or CaCl 2 + H 2O can proceed. Thermodynamic analysis (Ti ore chlorination) Ti ore : mixture of TiO x and FeO x. C (s) / CO (g

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The kinetics and mechanism of selective iron

2013-7-18  (2007). The kinetics and mechanism of selective iron chlorination of an ilmenite ore. Mineral Processing and Extractive Metallurgy: Vol. 116, No. 4, pp. 230-238.

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Kinetics of Iron Chlorination of Roasted Illmenite

The preferential chlorination reaction of iron constituents in roasted ilmenite ore was studied in an experimental fluidized bed reactor. The influence of the roasting temperature on the selectivity of chlorination reactions was also examined. It was found that preferential iron chlorination is dependent on roasted product morphology. Effects of chemical and process variables in the fluidized

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Removal of Iron from Titanium Ore through

Removal of Iron from Titanium Ore through Selective Chlorination Using Magnesium Chloride. Jungshin Kang 1,+ and Toru H. Okabe 2 1 Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan 2 Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan. A selective chlorination process using magnesium chloride (MgCl2

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Kinetics of Selective Chlorination of Ilmenite Using

2019-5-26  The selective chlorination of iron from llmenite ore by CO-Cl2 mixtures: Part II. mathematical modeling of the fluidized-bed process. Metallurgical Transactions B 1990,21 (2),331-340.

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IRON REMOVAL FROM TITANIUM ORE USING SELECTIVE

2009-1-15  conditions for the chlorination experiments were optimized. The iron in the titanium ore was selectively chlorinated by reacting low-grade titanium ore (ilmenite) and metal chloride (MClx, M = Mg, Ca, etc.) at 1100 K under a nitrogen atmosphere, and low-iron titanium ore and iron

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The Chlorination of Gold Ores. Digitised Collections

2020-2-20  at a pressure of loolbs. per square inch to the chlorinated ore. In 1888 Sir Wm. Crookes patented a process for the treat-ment of auriferous ores with perchloride of iron solutions in the presence of some oxidising agents, such as nitre, or man-ganese dioxide. The ore and solution were to be heated to

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Simultaneous Selective Chlorination and Carbothermic

2019-10-20  Simultaneous Selective Chlorination and Carbothermic Reduction of High-Iron Manganese Ore for the Recovery of Manganese Chloride and Metallic Metals ( IF 2.351) Pub Date : 2019-10-20 Dawei Yu, Fuhui Cui, Yunxiang Cong, Chunxi Zhang, Qinghua Tian, Xueyi Guo

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Iron Removal from Titanium Ore using Selective

2009-1-15  Selective-chlorination potential (TiO x,FeCl x are satable) Ti chlorination Oxygen partial pressure potential, log p O 2 (atm) Chlorine partial pressure, log p Cl 2 (atm) The selective-chlorination of Ti ore using MgCl 2 or CaCl 2 + H 2O can proceed. Thermodynamic analysis (Ti ore chlorination) Ti ore : mixture of TiO x and FeO x. C (s) / CO (g

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On Dioxin Formation in Iron Ore Sintering

2003-6-27  Iron ore sintering is an important source of “dioxins”, polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). This paper reports on attempts to identify materials, conditions, and mechanisms responsible for PCDD/F formation (i) by investigating salient properties of ores (viz., with respect to oxidation, condensation, and chlorination of model organics) and (ii) by mimicking the

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Laboratory Gold Ore Chlorination Testing Procedure

2017-2-16  Experience has shown how difficult it is to obtain information regarding laboratory tests in connection with the chlorination-process for the extraction of gold from its ores, and I therefore present the following method, somewhat in detail, for the benefit of those who may desire to pursue research work in this field.. The ore chosen was a partly-decomposed porphyry, extremely siliceous and

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The selective chlorination of iron from llmenite ore by

The intrinsic kinetics of the selective chlorination of iron from ilmenite ore using carbon monoxide as the reducing agent were studied in a shallow fluidized bed. Experiments on the effects of chlorination temperature, carbon monoxide and chlorine gas partial pressures, and particle size were conducted in the absence of mass- and heat-transfer influences.

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The kinetics and mechanism of selective iron

2013-7-18  (2007). The kinetics and mechanism of selective iron chlorination of an ilmenite ore. Mineral Processing and Extractive Metallurgy: Vol. 116, No. 4, pp. 230-238.

get price

IRON REMOVAL FROM TITANIUM ORE USING SELECTIVE

2009-1-15  conditions for the chlorination experiments were optimized. The iron in the titanium ore was selectively chlorinated by reacting low-grade titanium ore (ilmenite) and metal chloride (MClx, M = Mg, Ca, etc.) at 1100 K under a nitrogen atmosphere, and low-iron titanium ore and iron

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Two stage chlorination of titaniferous ore with FeCl3

This invention relates to chlorination of iron-bearing titaniferous materials, e.g., ilmenite or titania slag, in a multistage process. It provides for nonselective chlorination of a portion of the ore charge with chlorine in a primary chlorinator to produce titanium tetrachloride (TiCl 4) and FeCl 2 or FeCl 3 or a mixture of FeCl 2 and FeCl 3, and nonselective chlorination of the remaining

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Iron Removal from Titanium Ore using Selective

2009-1-15  Selective-chlorination potential (TiO x,FeCl x are satable) Ti chlorination Oxygen partial pressure potential, log p O 2 (atm) Chlorine partial pressure, log p Cl 2 (atm) The selective-chlorination of Ti ore using MgCl 2 or CaCl 2 + H 2O can proceed. Thermodynamic analysis (Ti ore chlorination) Ti ore : mixture of TiO x and FeO x. C (s) / CO (g

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PRELIMINARY STUDIES ON CHLORINATION OF

2021-6-20  Abstract. The results of investigations on chlorination of one of the native uranium ores are presented. These were preltminary experiments initiating more extensive research work concerned with the mechanism and usefulness of extracting uranium from native ores with the aid of gaseous chlorine.

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On Dioxin Formation in Iron Ore Sintering

2003-6-27  Iron ore sintering is an important source of “dioxins”, polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). This paper reports on attempts to identify materials, conditions, and mechanisms responsible for PCDD/F formation (i) by investigating salient properties of ores (viz., with respect to oxidation, condensation, and chlorination of model organics) and (ii) by mimicking the

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CHLORINATION OF NICKEL ORE BY GASEOUS CHLORINE

2007-4-17  The chlorination of Cr from the Rzanovo ore is low with the degrees from 0.5 up to 2.5. The dependence of the chlorination degree of nickel on the chlorine quantity is shown in Fig. 4. At lower temperatures of 700-800 oC the influence of chlorine quantity on the chlorination degree of Ni and Fe is relatively low, whereas it is high at

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Laboratory Gold Ore Chlorination Testing Procedure

2017-2-16  Experience has shown how difficult it is to obtain information regarding laboratory tests in connection with the chlorination-process for the extraction of gold from its ores, and I therefore present the following method, somewhat in detail, for the benefit of those who may desire to pursue research work in this field.. The ore chosen was a partly-decomposed porphyry, extremely siliceous and

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The fingerprint nature of PCDD in iron ore sinter

The fingerprint nature of PCDD in iron ore sinter strand emissions, the effect of suppressants and alternative fuels, and the potential for comparison with the isomer profile of PCDF Chemosphere . 2018 Jan;191:848-857. doi: 10.1016/j.chemosphere.2017.10.102.

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