flotation of chromite ore

flotation of chromite ore

Flotation of Chromite Ore

2017-6-5  Deslimed chromite ore was floated at pH 1.5 to 5.5 using a long-chain fatty-acid collector and soluble fluoride ions as a silicate depressant. The Havens method

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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

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Recover Chromite by Flotation - 911 Metallurgist

2021-4-6  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 phase of the study showed a concentrate grade of 45.6 percent Cr2O3 at a

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The flotation behaviour of chromite with respect to the ...

1999-10-1  Chromite is one of the main gangue constituents of UG2 ore, 1177 1178 Q.I. Wesseldijk et al. making up 20 to 60% by mass of the ore. Although the main minerals targeted are the base metal sulphides; pyrrhotite, pentlandite and chalcopyrite (Liddell et al., 1986) a certain amount of chromite reports to the flotation concentrate.

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FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES

2014-6-28  A chromite ore sample about (250 kgs) of low grade ore was collected from Chickay mines, at the Ingassana Hills. A high grade chromite ore sample (10Kg) and a similar high grade serpentine sample were selectively collected to investigate their flotation characteristics. Lumpy Samples, about 10 kg of low grade chromite ore were taken

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THE FLOTATION OF SOUTH AFRICAN CHROMITE ORES

2014-5-14  Keywords: Flotation, chromite ore, pH, anionic collector, separation index 1. INTRODUCTION Chromite is an iron chromium oxide (FeCr 2 O 4) mineral belonging to the spinel group [1]. The only ore of chromium is chromite ore which ferrochromium and metallic chromium are produced from it by extracting processes.

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The flotation behaviour of chromite with respect to the ...

Chromite is one of the main gangue consituents of UG2 ore and it is essential that the amount of chromite reporting to the concentrate during flotation be minimised since it is detrimental to the subsequent smelting operations. It is generally considered that chromite is naturally hydrophilic and only reports to the concentrate by entrainment.

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Column Flotation of Chromite and Fluorite Ores: Canadian ...

2013-7-18  Abstract. The 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 % Cr 2 O 3 rougher concentrate at 87.1 % recovery, whereas conventional flotation produced a 40.4 % Cr 2 O 3 concentrate at 85.4 % recovery. Column flotation of undeslimed chromite ore also produced results superior to ...

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Flotation of chromite and serpentine - ScienceDirect

2007-6-15  It is well-known that flotation of chromite and serpentine is very difficult, especially in oleate flotation, due to similar surface properties of both minerals and to the ions such as Mg 2+ deriving from the ore and depressing the adsorption of RCOO − ions on the chromite surface . Modifying agents may be used to increase selectivity.

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THE FLOTATION OF SOUTH AFRICAN CHROMITE ORES

2014-5-14  Keywords: Flotation, chromite ore, pH, anionic collector, separation index 1. INTRODUCTION Chromite is an iron chromium oxide (FeCr 2 O 4) mineral belonging to the spinel group [1]. The only ore of chromium is chromite ore which ferrochromium and metallic chromium are produced from it by extracting processes.

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Column Flotation of Chromite and Fluorite Ores: Canadian ...

2013-7-18  Abstract. The 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 % Cr 2 O 3 rougher concentrate at 87.1 % recovery, whereas conventional flotation produced a 40.4 % Cr 2 O 3 concentrate at 85.4 % recovery. Column flotation of undeslimed chromite ore also produced results superior to ...

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Flotation of chromite and serpentine - ResearchGate

Flotation of chromite and serpentine ... The world supply and reserves of chromite or chrome ore (FeCr2O4) have been dominated mainly by South Africa and the ex-USSR, which made chromite a ...

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US2469422A - Selective flotation of chromite ores -

US2469422A US514987A US51498743A US2469422A US 2469422 A US2469422 A US 2469422A US 514987 A US514987 A US 514987A US 51498743 A US51498743 A US 51498743A US 2469422 A US2469422 A US 2469422A Authority US United States Prior art keywords treatment concentrate pulp flotation froth Prior art date 1943-12-20 Legal status (The legal status is an assumption and is not a

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The Characterisation of a Two Stage Flotation Circuit ...

2020-12-8  chromite recoveries was determined by sampling around the unit. The changes in ore floatability characteristics were monitored by carrying out batch flotation tests on samples

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Five Chrome Extraction Process to Teach you the Chromite ...

2020-9-25  Flotation process. At present, we can use the flotation process to recover the chromite with fine grain size (-100um) after the gravity separation. The results show that Mg2+ and Ca2+ can inhibit the chromium ore, and the inhibition of Mg2+ is influenced by the type of anions in the slurry.

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flotation of chromite ore pdf - federufficitecnici.it

2019-6-16  Flotation Of Chromite Ore Pdf In South Africa. Flotation Of Chromite Ore Pdf In South Africa. Tailings loss in chrome ore beneficiation plants.Beneficiation routes for upgrading iron ore tailings with a teetered.Sep 14, 2016 although iron ore tailings are sometimes admitted as secondary resources for.Only with coal, but with regard to iron ore processing, chromite, beach sands, metal from tail ...

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Extraction of Chromium from Chromite Ore

2017-7-20  Chromite Ore Processing. Low-grade ore obtained from an open cut trench at a chromite deposit near Auburn, Calif., was treated in the laboratory using gravity-magnetic separation and flotation beneficiation techniques. Flotation using known

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The effect of copper sulphate addition on the recovery of ...

2009-8-27  Flotation performance was evaluated using the relationship of mass to water recovery as well as the chromite recovery. Experimental details The ore The UG2 ore was obtained from the Bushveld Igneous complex in the North West province of South Africa. The UG2 ore consists mainly of chromite at a composition of roughly 26% by mass.

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Chrome ore beneficiation challenges opportunities – A ...

2011-4-1  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 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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Chromite Flotation - Froth Flotation (Sulphide Oxide ...

2021-10-24  Yes, gravity separation is the way to go in case of chromite. If there are other valuable species, e.g. PGM-containing minerals, they can be floated first and then tails go to gravity separation. Actually chromite flotation should be similar to magnetite/ hematite ore flotation.

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Flotation of chromite and serpentine - ResearchGate

Flotation of chromite and serpentine ... The world supply and reserves of chromite or chrome ore (FeCr2O4) have been dominated mainly by South Africa and the ex-USSR, which made chromite a ...

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US2469422A - Selective flotation of chromite ores -

US2469422A US514987A US51498743A US2469422A US 2469422 A US2469422 A US 2469422A US 514987 A US514987 A US 514987A US 51498743 A US51498743 A US 51498743A US 2469422 A US2469422 A US 2469422A Authority US United States Prior art keywords treatment concentrate pulp flotation froth Prior art date 1943-12-20 Legal status (The legal status is an assumption and is not a

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Column Flotation of Chromite and Fluorite Ores

Column flotation of undeslimed chromite ore also produced results superior to those attained with conventional flotation. Column flotation of fluorite ore produced a 90.9 % CaF2 rougher concentrate at 86.8 % recovery, compared with a 67 % CaF2 rougher

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Effect of sodium oleate dose on the flotation of chromite ...

The latter technique has been developed in continuous flotation columns or in other pilot or industrial devices for processing of UG2 ore in South Africa [5, 16 -18] to remove the major chromite ...

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Five Chrome Extraction Process to Teach you the Chromite ...

2020-9-25  Flotation process. At present, we can use the flotation process to recover the chromite with fine grain size (-100um) after the gravity separation. The results show that Mg2+ and Ca2+ can inhibit the chromium ore, and the inhibition of Mg2+ is influenced by the type of anions in the slurry.

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(PDF) Enrichment of a Nigerian chromite ore for ...

Chromite ore (FeOCr 2 O 3) is the most important mineral occurrence of chromium, and some deposits are reported in Anka Local Government Area of Zamfara State. ... Ion flotation, using ...

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Enrichment of a Nigerian chromite ore for metallurgical ...

This study, focused on the beneficiation of a Nigerian complex chromite ore sourced from Tunga-Kaduka, Anka Local Government of Zamfara State, Nigeria, assaying 45.85% Cr 2 O 4 and 54.15% mineral impurities, was enriched concurrently through sink floatation and magnetic separation techniques. The chromite ore initially analyzed to contain silicate impurities was found not suitable for ...

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A comparison of models for the recovery of minerals in a ...

2015-3-31  A study was carried out to evaluate various batch flotation models for the recovery of minerals in a UG2 platinum ore. The major minerals in a UG2 ore can be grouped as platinum group minerals, chromite, and siliceous gangue. This study also examined the entrainment of minerals during flotation. The models were ranked using statistical methods ...

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Development of PGMs and Chrome Extraction Circuit

2012-5-23  2 ore as the run of mine to recover PGMs and all ore is beneficiated using conventional crushing, milling, and flotation processes. There is a chrome plant that is installed in the middle of the flotation circuit in order to benefit the increased in PGMs recovery from secondary circuit by

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