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 …

The flotation time was 10 min. For the chromite flotation, the pH was lowered to 3 with H 2 S0 4 " The same reagents in quantities of 30 g/ton of collector and 10 g/ton of frother …

Chromite recovery from UG2 tailings by physical separation and flotation was studied. • Desliming, magnetic separation and acidic flotation (pH2.5) achieved target grades. • Results on deslimed feed at natural pH with various collectors have been promising. • Further work is underway on spiral concentrates, collector addition and froth ...

About 70% of the UG2 reef consists of the gangue mineral chromite (FeO · Cr2O3). In the processing of UG2 ore by flotation for the recovery of platinum group elements (PGEs) the presence of ...

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 …

In the UG2 ore (Bushveld Complex, South Africa) flotation, normally more than 3% of the gangue minerals, principally chromite with talc and pyroxene, report to the concentrate diluting the PGM ...

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 …

Introduction 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 [1–4]. …

Flotation using cationic collectors. 500 gms of the fines were subjected to flotation. It was attempted to float the slimes in an alkaline pulp of pH 11 adjusted with lime, 50 g/ton of amine acetale (Armac C) and Dowfroth 200 was used as frother at a dosage of 5 g/ton. The flotation time was 10 min. For the chromite flotation, the pH was ...

Serpentines could be successfully depressed sodium fluorosilicate which counteracts the effect of dissolved metal ions. In acid circuit pH 5.5, the amenability of silicates to flotation decreases and chromite floats readily. The suitability of the process for chromite ore beneficiation requires further pilot plant tests. Résumé

GAS IN NEEDLE~~~l~f BLE FLOWMETER MERCURY MANOMETER CONE FLOTATION CELL ~ a PULP ..-,, YR,NO !,-% PERISTALTIC PUMP Fig. 1 Micro flotation apparatus used for microflotation experiments on chromite. Flotation behaviour of chromite with respect to beneficiation of UG2 ore 1179 Air was introduced into the cell …

The main economic PGE-bearing ore bodies within the Bushveld Complex mined today are the Merensky Reef, the UG-2 chromitite, and the Platreef. ... The processing plants of Sylvania Platinum Ltd. make use of gravity separation and flotation to recover both the chromite and PGE-rich fractions. Comminution and liberation of …

The selective flotation of chromite minerals of any chromite ore have some difficulties due to dissolved cations from gangue minerals. ... bench flotation tests for the ore sample fromYunnan Mine ...

[db:item=46f892dc3ba]Mountain Chromite Ore[/db:item] Copy Tooltip Code to Clipboard. Tooltip code copied to clipboard. Copy to clipboard failed. The above tooltip code may be used when posting comments in the Eorzea Database, creating blog entries, or accessing the Event & Party Recruitment page. When used, a tooltip* will be displayed in your ...

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

Flotation Gora Ore. Chemical analysis of the chromite mineral prompted investigation of using flotation to produce a concentrate containing 44 to 48 percent …

By this work, selective flotation of various chromite ores were studied to determine some of the features of chromite flotation. Different chromite ores from South Africa were made flotation using the anionic collector, A825 (petroleum sulfonate), after conditioning with H2SO4 at low pH values in the range of 1 and 3.

An Example of flotation cell capacity and circuit retention time approximation: Estimate the volume of conditioners and flotation cells required to handle 9100 dry tons of ore per 24 hours at 30% pulp solids by weight, with an ore specific gravity of 3.1. Five minutes conditioning time and 15 minutes flotation time are desired.

The South African platinum industry has advanced into an era of predominantly mining and processing Upper Group Two (UG-2) ore to extract Platinum Group Metals (PGMs). Flotation concentrates derived from processing UG-2 ore are typically characterized by high chrome contents (>3 wt.%) which are not amenable to …

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 % …

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 ...

About 70% of the UG2 reef consists of the gangue mineral chromite (FeO · Cr 2 O 3).In the processing of UG2 ore by flotation for the recovery of platinum group elements (PGEs) the presence of chromite in the concentrates can cause serious downstream processing problems and a grade of less than 3% Cr 2 O 3 is sought. This …

Chromium (Cr) ore refers to a natural mineral deposit that contains chromium in its raw form. Chromium is a chemical element with the symbol Cr and atomic number 24. It is a hard, lustrous, and corrosion-resistant metal that is widely used in various industrial applications due to its unique properties.

Commercial chromite ore beneficiation processes. Pure chromium is difficult to produce since it is readily contaminated by many other elements. Huge quantity of raw chromite ore is being mined and beneficiated in various chrome ore beneficiation plants throughout the world to cater the customized needs of various ferro alloy plants.

Keywords: Chromite; Flotation; Modifier; Separation; Serpentine 1. Introduction The world supply and reserves of chromite or chrome ore (FeCr2O4) have been dominated mainly by South Africa and

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 ...

Samples of the Middle Group 1 chromite ore of the South African Bushveld complex were subjected to batch flotation tests using sodium isobutyl Xanthate (SIBX) and Senkol 433 as collectors and ...

The rougher flotation kinetics of the tw o ore bodies also differ slightly with the LG or es showing a much faster and higher rougher recovery compared to MG ores. Figure3: Rate kinetics for ...

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 …

2.1. Characterisation. Chromite sample was obtained from the western limb of the BIC along the Middle group seam. The samples were from MG1, MG2, MG3 and MG4. …