ilmenite koh solution

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Decomposition of ilmenite by concentrated KOH solution ...

01-11-2006  The reaction of ilmenite with concentrated KOH solution led to the formation of potassium titanate (K 4 Ti 3 O 8) and iron oxide, and this could be described as follows: (1) 3FeTiO 3 + 4KOH → K 4 Ti 3 O 8 + 3FeO + 2H 2 O

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Acid leaching of ilmenite decomposed by KOH -

01-06-2009  Minor amounts of titanium and iron were leached (less than 2%) from the decomposed ilmenite ore in the alkaline KOH solution. After alkaline treatment, the ilmenite paste was leached to extract iron, titanium, chromium and vanadium by adding sulfuric acid, hydrochloric acid or oxalic acid.

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Decomposition of ilmenite by concentrated KOH solution ...

A new process was provided for decomposition of ilmenite by concentrated KOH solution under atmospheric pressure. The significant effects of reaction temperature, KOH concentration, stirring speed, particle size, and alkali-to-ilmenite mass ratios on titanium extraction were studied.

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Decomposition of Ilmenite in KOH-H2O Solutions Under

Current methods for decomposing ilmenite 1 are based mainly on the treatment of ilmenite with sulfuric acid or chlorination at high temperatures. The object of the present work was to study the effects of KOH solution on the decomposition and stability of ilmenite under hydrothermal conditions.

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Kinetics of acid leaching of ilmenite decomposed by KOH ...

15-09-2009  Based on this equation, ilmenite of different particle sizes were decomposed by KOH. The decomposition conditions unless otherwise stated, were generally fixed at 100 g ilmenite, 70% KOH solution at 100 °C, particle size of 105–74 μm alkali:ilmenite ratio mass ratio of 5:1 with stirring speed 375 rpm and reaction period of 3 h.

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Decomposition of ilmenite by concentrated KOH

A new process was provided for decomposition of ilmenite by concentrated KOH solution under atmospheric pressure. The significant effects of reaction temperature, KOH concentration, stirring speed, particle size, and alkali-to-ilmenite mass ratios on titanium extraction were studied.

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Kinetics of acid leaching of ilmenite decomposed by

15-09-2009  Based on this equation, ilmenite of different particle sizes were decomposed by KOH. The decomposition conditions unless otherwise stated, were generally fixed at 100 g ilmenite, 70% KOH solution at 100 °C, particle size of 105–74 μm alkali:ilmenite ratio mass ratio of 5:1 with stirring speed 375 rpm and reaction period of 3 h.

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Acid leaching of ilmenite decomposed by KOH

Ilmenite KOH decomposition Oxalic acid Hydrochloric acid Sulfuric acid The effects of reaction time, KOH concentration, alkali-to-ilmenite mass ratios and reaction temperature on titanium decomposition were investigated. Minor amounts of titanium and iron were leached (less than 2%) from the decomposed ilmenite ore in the alkaline KOH solution.

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Decomposition of Ilmenite from Bangka Island-Indonesia ...

28-08-2018  At present work, an experiment to investigate the effect of Ilmenite particle size, aqueous potassium hydroxide (KOH) solution concentrations, temperature, and reaction time on the decomposition reaction of Ilmenite from Bangka Island Indonesian were studied by using 2 liter capacities autoclave as a reactor for decomposition process.

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Extraction behaviours of titanium and other impurities in ...

To effectively utilize ilmenite and recycle KOH solution, the extraction behaviours of titanium and other associated impurities in the decomposition process of ilmenite by highly concentrated KOH solution were studied. Experiments on the extraction behaviours of titanium as well as other associated impurities of ilmenite such as iron, silicon, calcium, and aluminium were carried out.

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ilmenite processing solutions - fermeduserre.fr

A new process was provided for decomposition of ilmenite by concentrated KOH solution under atmospheric pressure. The significant effects of reaction temperature, KOH concentration, stirring speed, particle size, and alkali-to-ilmenite mass ratios on titanium extraction were studied.

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Removal of iron from ilmenite by KOH leaching-oxalate ...

16-01-2010  Oxalic acid was used for the removal of iron from the intermediates of ilmenite leached by KOH liquor. Various parameters, such as pH, temperature, initial oxalate concentration, and illumination were investigated. Meanwhile, it was found that orthorhombic crystal Ti2O2(OH)2(C2O4)H2O formed as the leaching proceeded. Scanning electronic microscope (SEM) images implied that the formation of ...

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Decomposition of Ilmenite in KOH-H2O Solutions Under

Decomposition of Ilmenite in KOH-H2O Solutions Under High-Pressure Conditions SHIN-ICHI HIRANO; M. G. M. U. ISMAIL; SHIGEYUKI SOMIYA download BookSC. Download books

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Ilmenite - chemeurope

Ilmenite most often contains appreciable quantities of magnesium and manganese and the full chemical formula can be expressed as (Fe,Mg,Mn,Ti)O 3. Ilmenite forms a solid solultion with geikielite (MgTiO 3) and pyrophanite (MnTiO 3) which are magnesian and manganiferous end-members of the solid solution

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Ilmenite - Wikipedia

Ilmenite most often contains appreciable quantities of magnesium and manganese and the full chemical formula can be expressed as (Fe,Mg,Mn,Ti)O 3.Ilmenite forms a solid solution with geikielite (MgTiO 3) and pyrophanite (MnTiO 3) which are magnesian and manganiferous end-members of the solid solution series.. Although there appears evidence of the complete range of mineral chemistries in the ...

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Decomposition of ilmenite by concentrated KOH solution ...

A new process was provided for decomposition of ilmenite by concentrated KOH solution under atmospheric pressure. The significant effects of reaction temperature, KOH concentration, stirring speed, particle size, and alkali-to-ilmenite mass ratios on titanium extraction were studied. The temperature and initial particle size showed significant influence on titanium extraction.

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Decomposition of Ilmenite in KOH‐H2O Solutions Under

DOI: 10.1111/J.1151-2916.1976.TB10961.X Corpus ID: 95927499. Decomposition of Ilmenite in KOH‐H2O Solutions Under High‐Pressure Conditions @article{Hirano1976DecompositionOI, title={Decomposition of Ilmenite in KOH‐H2O Solutions Under High‐Pressure Conditions}, author={Shin-ichi Hirano and M. Ismail and S. Sōmiya}, journal={Journal of the American Ceramic Society},

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ilmenite processing solutions - fermeduserre.fr

A new process was provided for decomposition of ilmenite by concentrated KOH solution under atmospheric pressure. The significant effects of reaction temperature, KOH concentration, stirring speed, particle size, and alkali-to-ilmenite mass ratios on titanium extraction were studied.

More

Decomposition of Ilmenite in KOH-H2O Solutions Under

Decomposition of Ilmenite in KOH-H2O Solutions Under High-Pressure Conditions SHIN-ICHI HIRANO; M. G. M. U. ISMAIL; SHIGEYUKI SOMIYA download BookSC. Download books

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Kinetics of acid leaching of ilmenite decomposed by KOH ...

Main Journal of Hazardous Materials Kinetics of acid leaching of ilmenite decomposed by KOH: Part 2. Leaching by H2SO4 and C2H2O4 Journal of Hazardous Materials 2009 Vol. 168; Iss. 2-3

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3625. Decomposition of Ilmenite from Bangka Island ...

Decomposition of Ilmenite from Bangka Island-Indonesia with KOH Solutions.pdf [fileName] Cite Data File EndNote XML

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Removal of iron from ilmenite by KOH leaching-oxalate ...

16-01-2010  Oxalic acid was used for the removal of iron from the intermediates of ilmenite leached by KOH liquor. Various parameters, such as pH, temperature, initial oxalate concentration, and illumination were investigated. Meanwhile, it was found that orthorhombic crystal Ti2O2(OH)2(C2O4)H2O formed as the leaching proceeded. Scanning electronic microscope (SEM) images implied that the formation of ...

More

Ilmenite - chemeurope

Ilmenite most often contains appreciable quantities of magnesium and manganese and the full chemical formula can be expressed as (Fe,Mg,Mn,Ti)O 3. Ilmenite forms a solid solultion with geikielite (MgTiO 3) and pyrophanite (MnTiO 3) which are magnesian and manganiferous end-members of the solid solution

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Hematite-ilmenite (FerOr-FeTiO3) solid solutions: The ...

Enthalpies of reaction from lead borate drop solution calorimetry at 1057 K show that endothermic mixing dominates hematite-ilmenite solid solutions with compositions from x,,- : 0 to 0.65, whereas exothermic mixing dominates the compositional region from x,,-: 0.65 to l The measured enthalpy of mixing is interpreted as arising from two contri-

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PAPER OPEN ACCESS Titanium dissolution from decomposed ...

following steps: the washing process of decomposed Ilmenite with water and the titanium dissolution process from the washed decomposed Ilmenite in to the aqueous sulphuric acid solutions. In the washing process, the decomposed Ilmenite samples from decomposition experiment were washed by demineralized water until the washed solution pH reached 7.

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Decomposition of Ilmenite in KOH‐H2O Solutions Under

DOI: 10.1111/J.1151-2916.1976.TB10961.X Corpus ID: 95927499. Decomposition of Ilmenite in KOH‐H2O Solutions Under High‐Pressure Conditions @article{Hirano1976DecompositionOI, title={Decomposition of Ilmenite in KOH‐H2O Solutions Under High‐Pressure Conditions}, author={Shin-ichi Hirano and M. Ismail and S. Sōmiya}, journal={Journal of the American Ceramic Society},

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ilmenite processing solutions - fermeduserre.fr

A new process was provided for decomposition of ilmenite by concentrated KOH solution under atmospheric pressure. The significant effects of reaction temperature, KOH concentration, stirring speed, particle size, and alkali-to-ilmenite mass ratios on titanium extraction were studied.

More

Removal of iron from ilmenite by KOH leaching-oxalate ...

16-01-2010  Oxalic acid was used for the removal of iron from the intermediates of ilmenite leached by KOH liquor. Various parameters, such as pH, temperature, initial oxalate concentration, and illumination were investigated. Meanwhile, it was found that orthorhombic crystal Ti2O2(OH)2(C2O4)H2O formed as the leaching proceeded. Scanning electronic microscope (SEM) images implied that the formation of ...

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Kinetics of acid leaching of ilmenite decomposed by KOH ...

Made available by U.S. Department of Energy Office of Scientific and Technical Information ...

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3625. Decomposition of Ilmenite from Bangka Island ...

Decomposition of Ilmenite from Bangka Island-Indonesia with KOH Solutions.pdf [fileName] Cite Data File EndNote XML

More

Ilmenite - chemeurope

Ilmenite most often contains appreciable quantities of magnesium and manganese and the full chemical formula can be expressed as (Fe,Mg,Mn,Ti)O 3. Ilmenite forms a solid solultion with geikielite (MgTiO 3) and pyrophanite (MnTiO 3) which are magnesian and manganiferous end-members of the solid solution

More

Hematite-ilmenite (FerOr-FeTiO3) solid solutions: The ...

Enthalpies of reaction from lead borate drop solution calorimetry at 1057 K show that endothermic mixing dominates hematite-ilmenite solid solutions with compositions from x,,- : 0 to 0.65, whereas exothermic mixing dominates the compositional region from x,,-: 0.65 to l The measured enthalpy of mixing is interpreted as arising from two contri-

More

PAPER OPEN ACCESS Titanium dissolution from decomposed ...

following steps: the washing process of decomposed Ilmenite with water and the titanium dissolution process from the washed decomposed Ilmenite in to the aqueous sulphuric acid solutions. In the washing process, the decomposed Ilmenite samples from decomposition experiment were washed by demineralized water until the washed solution pH reached 7.

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Potassium hydroxide - Wikipedia

KOH reacts with carbon dioxide to give potassium bicarbonate: KOH + CO 2 → KHCO 3 Manufacture. Historically, KOH was made by adding potassium carbonate to a strong solution of calcium hydroxide (slaked lime) The salt metathesis reaction results in precipitation of solid calcium carbonate, leaving potassium hydroxide in solution:

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Potassium Hydroxide Concentration Calculator

This is a table of density (kg/L) and the corresponding concentration (% weight) of Potassium Hydroxide in water at a temperature of 20 degrees centigrade. The table was taken from the chemistry and physics handbook. The calculator does automatic interpolation calculation for density or concentration values that are between those in the table.

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