flotation chromite ore

flotation 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

(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

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

FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES

2014-6-28 · FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES 651 2. EXPERIMENTAL 2.1 Materials 2.1.1Chromite Ore Sample 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

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.

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.

Column flotation of Montana chromite ore | SpringerLink

1986-8-1 · The US Bureau of Mines compared column flotation using either fine or coarse bubbles with conventional flotation on a Montana chromite ore. On deslimed ore, fine-bubble column flotation produced a 44.7% Cr 2 O 3-grade rougher concentrate with 87% recovery, compared with 43.8% and 43.5% Cr 2 O 3-grade rougher concentrates with 85% and 77% recovery for coarse-bubble column flotation and ...

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.

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

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

FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES

2014-6-28 · FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES 651 2. EXPERIMENTAL 2.1 Materials 2.1.1Chromite Ore Sample 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

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.

Column flotation of Montana chromite ore | SpringerLink

The US Bureau of Mines compared column flotation using either fine or coarse bubbles with conventional flotation on a Montana chromite ore. On deslimed ore, fine-bubble column flotation produced a 44.7% Cr 2 O 3-grade rougher concentrate with 87% recovery, compared with 43.8% and 43.5% Cr 2 O 3-grade rougher concentrates with 85% and 77% recovery for coarse-bubble column flotation and ...

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

floatation flowsheet of beneficiation of chromite - BINQ ...

2012-11-16 · gold process using floatation – process crusher. flotation equipment for copper gold ore,chromite flotation Froth floatation for fly ash beneficiation,froth This flowsheet of gold ore processing »More detailed

The characterisation of a two stage flotation circuit ...

1995-12-31 · The performance of each unit in terms of platinum, palladium, rhodium and 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 taken from the feed to each unit.

Mineralogical characterisation of chromite in the UG2 Reef ...

These three ore bodies are principally beneficiated by froth flotation. During the beneficiation of chromite hosted PGE’s by froth flotation, chromite represents the principal gangue mineral. This is particularly true for the UG2 main seam.

AN INVESTIGATION OF FROTH EFFECTS IN SCAVENGING

2016-5-6 · currently two major problems which are experienced during the flotation of UG-2 ore. Firstly, mineralogical studies have shown that the platinum losses in flotation plants are currently in excess of 10% and secondly the high chromite content in the flotation concentrate leads to

Characterisation and Flotation of a Weathered Platinum ...

2020-1-8 · A comprehensive characterisation of the weathered ore was carried out, where physical, chemical, and mineralogical and liberation properties of the sample were determined. The performance of the weathered ore during flotation was investigated using a pilot plant. It was found that the ore contains 3g/t of 4E PGMs (Pt, Pd, Ru and Au).

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

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.

INVESTIGATION OF CHROMITE FLOTATION FROM

the research was carried out on two chromite samples with olivine gangue mineral (mainly type forsterite) from the two biggest and most representative deposits of the region. the serpentine percentage was below 10%. ore samples assay in cr2o3 were 15% and 12% respectively. the flotation tests were carried out in denver flotation machine, with ...

The characterisation of a two stage flotation circuit ...

1995-12-31 · The performance of each unit in terms of platinum, palladium, rhodium and 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 taken from the feed to each unit.

「chromite mineral processing technique」

Chrome Ore Beneficiation Process Chromite Processing JXSC . The chrome raw ore is a flotation tail ore, which is mainly formed in the chromite, and the chromite is the target recovering mineral. The dissociation degree of ferrochromium ore is low, and it has a weak magnetic property. First of all, magnetic separation processing to separate ...

A Process Mineralogical Evaluation of Chromite at the ...

Chromite is a member of the spinel group and is the only economically important ore mineral of chromium. It is used extensively by the metallurgical industry as feedstock for ferroalloy production [1,2,3,4].Chromite ore is commonly classified into different grades based on the Cr/Fe ratio as well as the Cr 2 O 3 content. These being metallurgical grade, chemical grade and refractory grade [].

Trithiocarbonates for PGM flotation

2012-6-18 · TRITHIOCARBONATES FOR PGM FLOTATION 169 Introduction An increase in the beneficiation of UG2 ore is central to Impala Platinum’s strategic plan for increasing its platinum production in 2006/07. Beneficiation of this chromite rich ore, however, poses certain problems and challenges. High recovery of valuable minerals from UG2 is accompanied by

AN INVESTIGATION OF FROTH EFFECTS IN SCAVENGING

2016-5-6 · currently two major problems which are experienced during the flotation of UG-2 ore. Firstly, mineralogical studies have shown that the platinum losses in flotation plants are currently in excess of 10% and secondly the high chromite content in the flotation concentrate leads to

Estimates of Electricity Requirements for the Recovery of ...

2011-9-27 · Estimated electricity requirements for the production of chromite ore products (lump, chip, and fines of chemical, metallurgical, and foundry grade chromite) from underground room and pillar mining and gravity beneficiation .....31 Table 11.

Chromium Mining | Processing Equipment | Flow Chart ...

2021-11-21 · Chromium (Cr) is a hard, bluish metallic element. The only ore of chromium is the mineral chromite and 99 percent of the world’s chromite is found in southern Africa and Zimbabwe. Geologists estimate that there are about 11 billion tons of mineable chromite ore in the world, enough to supply the current demand for hundreds of years.

Minerals | Free Full-Text | The Behaviour of Mixtures of ...

2020-1-31 · The use of mixtures of thiol collectors is reportedly beneficial in sulfide flotation. This is becoming standard practice for many concentrators, but process water recirculation and re-use in flotation circuits may compromise the behaviour of such mixtures owing to changes in physicochemical interactions occurring in the pulp phase as a result of water quality variations.