cromite ore flotation
Minerals | Free Full-Text | Challenges Related to the …
An investigation into the role of froth phase in controlling chromite in the flotation of UG2 ore using laboratory column flotation cell. Miner. Eng. 2013, 55, 125–131. [Google Scholar] Hay, M.P. A case study of optimizing UG2 flotation performance. Part 2: Modelling improved PGM recovery and Cr2O3 rejection at Northam's UG2 concentrator.
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THE FLOTATION OF SOUTH AFRICAN CHROMITE ORES IN …
Chromite is an important strategic mineral usually associated with other gangue minerals, mainly silicates. The selective flotation of chromite minerals of any chromite ore have some difficulties due to dissolved cations from gangue minerals. By this work, selective flotation of various chromite ores were studied to determine some of the features of …
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(PDF) Flotation of chromite and serpentine
However, especially, Na-Oleate flotation of a chromite ore containing serpentine instead of olivine is very difficult because both minerals exhibit almost similar surface properties with chromite ...
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Flotation of Chromite Ore
Four different amine collectors were investigated using the 16.3- percent-Cr2O3 Benbow-1 ore. The flotation procedure was as described previously. For each test, collector dosage was 0.6 pound per ton and H2SO4 consumption was 26 pounds per ton. Rougher flotation using Armac C …
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Column Flotation of Chromite and Fluorite Ores
AbstractThe Bureau of Mines investigated column vs conventional flotation of chromite and fluorite ores. Fine-bubble column flotation of deslimed chromite ore produced a 44.7 % Cr2O3 rougher concentrate at 87.1 % recovery, whereas conventional flotation produced a 40.4 % Cr2O3 concentrate at 85.4 % recovery. Column flotation of …
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US2469422A
a selective froth flotation process for the treatment of chromite ores having low grade chrome spinels, Zircon, staurolite, ilmenite, magnetite, garnet, quartz, epidote, olivine and alteration products as inclusions which comprises subjecting a pulp of such an ore to an initial blunging treatment in the presence of a soluble fluosilicate-forming substance, …
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RECOVERY OF CHROMITE FINES BY FROTH FLOTATION
Chromite fines generated during communition of the low grade Landi-Raud chromite ore for the gravity processing, have been recovered by Froth flotation. A concentrate assaying 47% Crp3 with a ... laboratory experiments on flotation of chromite were car-ried out using anionic and cationic collectors. The flotation feed material (fmes from the ...
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Process optimization of a chrome ore gravity concentration …
Chromite ore scenario - India. India ranks third in the world in chromite production, and fifth in terms of ore reserves. The majority (98.6%) of the ... for coarse chromite fractions and a combination of gravity separation and flotation for fines. In India, at both the Sukinda and Boula-Nausahi sectors, chrome ore is mined by opencast ...
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A study on the recovery of fine chromite from …
The tailings typically has a grade of between 17 and 21% CrO3 and 31% SiO2, with 78% of the. chromite and 73% of the mass contained in the -38 μm fraction. With such a fine grind, it is evident ...
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Beneficiation Studies on the Low-Grade Chromite of …
ficial to upgrade the Muslim Bagh low-grade chromite ore by the flotation technique to produce chromite concentrate assaying 60.1% Cr 2 O 3 with a recovery of 82.65% using diso-dium n-octadecyl sulfosuccinamate as the collector. However, upgradation through floatation technique required desliming of the feed without which no significant grade ...
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FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES
Adequate degree of liberation of chromitewas obtained by grinding the ore to minus 180μm.Froth flotation was used to upgrade this chromite ore. ... Theseinclude the collector and depressant dosages, pulp pH, and conditioningtime. From an ore feed grading 20.27% Cr2O3, a chromite concentrateof 28.71% Cr2O3 with recovery of 94.54 % …
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[PDF] Flotation of Chromite as Pre-Treatment of Olivine …
DOI: 10.2174/11010001 Corpus ID: 45666605; Flotation of Chromite as Pre-Treatment of Olivine Before Carbonation for CO2 Sequestration @article{Turri2017FlotationOC, title={Flotation of Chromite as Pre-Treatment of Olivine Before Carbonation for CO2 Sequestration}, author={Laura Turri and Herv{'e} Muhr and …
ادامه مطلبRecover Chromite by Flotation
Flotation Gora Ore. Chemical analysis of the chromite mineral prompted investigation of using flotation to produce a concentrate containing 44 to 48 percent Cr2O3. The best results obtained in this …
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Acidic medium flotation separation of chromite from olivine …
The physico-chemical interactions among minerals such as olivine, chromite and serpentine; the most commonly present ions in solution such as Ca and Mg; and flotation reagents such as EDTA and oleic acid were investigated. The study was conducted via release tests, electro-phoretic measurements and microflotation of …
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Surface chemical mechanisms of inadvertent recovery of chromite …
Previous studies have identified residual talc-like layers on orthopyroxene surfaces in Merensky ore flotation contributing to inadvertent flotation of relatively large particles (20–150 µm) of this mineral. Chromite (75–150 µm) from flotation of UG2 ore has been similarly examined. Statistical comparison of ToF-SIMS analysis of particles ...
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A study on the recovery of fine chromite from UG2 tailings
Abstract. The recovery of chromite from the tailings streams of South African UG2 platinum concentrators adds significant financial returns to these operations. Whilst …
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Top 3 Chrome Ore Processing Methods that Get Higher …
Chrome ore flotation Generally, when the gravity separation and magnetic separation fail, flotation offers an alternative technique to concentrate the fine-grained and ultra-fine-grained chromite rocks and fine-grained chromite tailings which require fine grinding for liberation. But grinding will produce a large amount of ore slime.
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(PDF) A Process Mineralogical Evaluation of Chromite at …
A process mineralogical study based on three texturally and mineralogically different chromite-bearing ore types at the Nkomati nickel mine was undertaken, with focus on chromite. Chromite is a by-product of the Ni-Cu-Co-PGE ore at Nkomati Nickel ... Pre-flotation of the MCHR ore was performed to assess recovery of Cr2 O3 relative to the …
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Chromite ore beneficiation: prospects and challenges
The beneficiation studies of Suresh (1981) illustrate that low-grade chromite ore of 16%–25% Cr 2 O 3 of Sitampundi area of India, cannot be upgraded by using conventional physical beneficiation techniques like gravity and flotation, due to the intimate association of iron in the lattice of chromite particle. However, they have demonstrated ...
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Chrome ore beneficiation challenges & opportunities – A …
Supply of world chromite (chrome ore) has come under severe pressure over the past year driven by strong demand for ferrochrome used in ferroalloy production for making stainless steel. Many of the strategic minerals are inputs into products in fast-changing markets. ... Column flotation of chromite and fluorite ores. Canadian …
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On the Flotation of a Low Grade Chromite Ore
From an ore feed grading 20.27% Cr2O3, a chromite concentrate of 28.71% Cr2O3 with recovery of 94.54 % could be obtained by flotation at collector dosage of 0.300 kg /t, neutral pulp (pH 9 ...
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Effect of sodium oleate dose on the flotation of …
However, especially, Na-Oleate flotation of a chromite ore containing serpentine instead of olivine is very difficult because both minerals exhibit almost similar surface properties with chromite ...
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Effects of frother type and froth height on the flotation …
DOI: 10.1016/J.MINENG.2003.08.001 Corpus ID: 95546178; Effects of frother type and froth height on the flotation behaviour of chromite in UG2 ore @article{Ekmekci2003EffectsOF, title={Effects of frother type and froth height on the flotation behaviour of chromite in UG2 ore}, author={Zafir Ekmekci and Dee Bradshaw …
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Selective Flocculation of Chromite Tailings | Transactions …
Odisha state is the major reserve of the chromite ore. Due to the extensive applications, high-grade chromite ore is getting depleted day by day. Now it is a challenge for the industry to utilize these low-grade ores and tailings. Several attempts were taken to upgrade the low-grade chrome ores and tailings using different gravity separation …
ادامه مطلبCalculate Flotation Cell Capacities Volume vs Retention Time
In the absence of specific data, a time of treatment of 12 to 15 minutes is the normal allowance for the flotation of a straightforward ore in a mechanically-agitated or air-lift machine with a W/S ratio between 3/1 and 4/1. If cleaning of the concentrate is likely to be necessary, extra cells will be required, the number varying from one ...
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Chrome ore beneficiation challenges & opportunities – A …
The beneficiation studies of Suresh et al. (1981), concludes that low grade chromite ore of 16–25% Cr2O3, of Sitampundi area of India, cannot be upgraded by using tabling and flotation techniques, to meet the metallurgical grade due to the intimate association of iron in the lattice of chromite.
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Chrome ore beneficiation challenges & opportunities – A …
The beneficiation studies of Suresh et al. (1981), concludes that low grade chromite ore of 16–25% Cr 2 O 3, of Sitampundi area of India, cannot be upgraded by …
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THE FLOTATION OF SOUTH AFRICAN CHROMITE ORES …
The concentrates of about 40 % Cr2O3 and 2 % SiO2 content were produced from calculated head grade of. 30.54 % Cr2O3and 13.70 % SiO2 from the flotation of …
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A study on the recovery of fine chromite from UG2 tailings
Selective flotation of chromite from serpentine was possible with sodium oleate and FSA or EDTA as modifiers under conditions of neutral pH. ... (PGMs) recovery from a chromite-rich Cu-Ni PGM bearing ore in oxidized mineralization through a single-stage leach and adsorption onto ion exchange resin. Hydrometallurgy, Volume 178, …
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Flotation of chromite and serpentine
Chromite is an important strategic mineral usually associated with other gangue minerals, mainly silicates. The selective flotation of chromite minerals of any chromite ore have some difficulties due … Expand
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