(PDF) Potential Processing Routes for Recovery of
The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries ...
Chromite Copper Ore Separation Flotation Cell
The effect of copper sulphate addition on the recovery of chromite …
Chromite and talc are two major gangue minerals in platinum bearing UG2 ore processed from the Bushveld Complex in South Africa. During flotation, talc is effectively depressed by the addition of ...
1 Froth Flotation – Fundamental Principles
After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of concentration (b) % Metal Recovery (c) % Metal Loss (d) % Weight Recovery, or % Yield (e) Enrichment Ratio Table 1: Grade/recovery performance of a hypothetical copper ore flotation process.
Process for extraction of platinum group metals from chromite-bearing ore
The comminuted ore is then subjected to wet high intensity magnetic separation at 3 in order to separate the magnetic chromite particles from the nonmagnetic gangue particles which contain a substantial portion of the platinum group metals in the ore.
Chromite ore beneficiation: prospects and challenges
Suitable for deposits of vertical or near-vertical plane at an angle >angle of repose of broken ore. e.g., chromite ore, copper, lead, zinc, etc. ... magnetic separation, flotation, etc. In general, the beneficiation process circuit design varies from deposit to deposit and is tailored based on the mineral characteristics like mineral ...
FLOTATION OF CHROMITE
Tests were made on Chromite ore, table concentrate and tailing which were shippel from the Sterrett mine, one of the most promising chromite deposits in the Eastern …
Flotation of copper oxide minerals: A review
For copper oxide ores that contain weak magnetic copper-bearing minerals, such as libethenite, and copper-bearing limonite, after sulfidization flotation, the flotation tailings can be reseparated by high-gradient magnetic separation.
Flotation of Chromite Ore
The Bureau of Mines, U.S. Department of the Interior, devised a flotation technique for upgrading chromite in chromium ores and gravity concentrates. The …
Flotation of chromite and serpentine
Flotation has been widely used in mineral processing for the separation and concentration of mineral ores by exploiting the differences in hydrophobicity of the various minerals in the ores. Each year, more than a billion tons of sulphide ores are beneficiated via flotation throughout the world [1–3].
The flotation behaviour of chromite with respect to the …
The aim of this work was to investigate the effect of copper sulphate and the collectors, sodium isobutyl xanthate and dithiophosphate on the flotability of chromite in …
Influence of frothers on the flotation of black …
However, its effectiveness depends on the type of frothers used. The aim of this study was to evaluate the effectiveness of 2 Senfroth frothers, XP200 and XP 516 on the flotation of black mountain ore to recover copper …
Beneficiation of South African chromite tailings using …
Keywords: Ultra-fine chromite tailings, Magnetic separation, Characterization, Chromite 1. Introduction Chromite recoveries is a major concern particularly in processing of finely disseminated ores due to its inherent complexities. The gravity separation process is the main beneficiation process used to recover chromite mineral. However,
Flotation | Mineral Processing, Separation & Beneficiation
Flotation, in mineral processing, method used to separate and concentrate ores by altering their surfaces to a hydrophobic or hydrophilic condition—that is, the surfaces are either repelled or attracted by water. The flotation process was developed on a commercial scale early in the 20th century to
Flotation Cell Design: Application of Fundamental …
Flotation machines, in general, may be categorized into four different classes: (i) mechanical or con-ventional cells; (ii) energy-intensive pneumatic cells; (iii) column cells; and (iv) froth separators. Of these, mechanical otation cells have dominated the min- …
Acidic medium flotation separation of chromite from …
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 selected minerals …
Comprehensive Guide to Copper Ore Flotation Processing …
Copper ore flotation is a crucial process in the mining industry for the extraction of copper from its ores. Flotation involves the separation of valuable minerals from the gangue, and it is a key ...
A new method for gravity separation: Vibrating table gravity
In this work, a novel process consisting of calcining-slaking followed by gravity separation for the enrichment of niobium (Nb) and titanium (Ti) from carbonatite pyrochlore ore was proposed, validated and compared with the current mainstream flotation method.
Flotation Reagents
The amounts required will vary with the character of the ore and separation desired. In the event an excessive quantity of regulator is required to obtain the desired pH it may be advisable to consider removing the soluble salts by water washing in order to bring reagent cost within reason. ... The performance of froth flotation cells is ...
Investigating the Selectivity of Xanthates for the Flotation Separation
According to McFadzean et al., the presence of chromite in the flotation concentrate by entrainment could lead to issues for the downstream smelting processes or inefficiency in the selective flotation of chromite. In contrast, the Platreef ore consists of a complex collection of pyroxenites, serpentinites, and calc-silicates.
Interactive effect of minerals on complex ore flotation: A …
In this review, studies on the interactive effect among minerals on the flotation of iron ores, magnesite ores, and scheelite ores are summarized, and the …
Flotation Cells
More ores are treated using froth flotation cells than by any other single machines or process. Non-metallics as well as metallics now being commercially recovered include gold, silver, copper, lead, zinc, iron, manganese, nickel, cobalt, molybdenum, graphite, phosphate, fluorspar, barite, feldspar and coal. Recent flotation research …
Calculate Flotation Cell Capacities Volume vs Retention Time
This online calculator helps you on how to calculate or estimate either what size/volume flotation cell and well as conditioning tank + how many flotation cells your bank needs to accommodate the retention time you need. Design Retention time is usually obtained from laboratory testwork and proper use of Lab-to-Plant flotation scale-up …
Investigations on different starches as depressants for iron ore flotation
These characteristics of these ores tend to have a strong bearing on the surface properties of the particles to induce separation. Reverse flotation of iron ore is now drawing more attention ... In Brazil, this starch plays a major role in the flotation of iron ore, silvinite, copper sulphide ... chromite, hematite and magnetite using ...
The extractive metallurgy of South Africa's platinum ores
This article will review advances in PGM extraction, including developments in semi-autogenous and fully autogenous milling; flotation equipment applications for treating high-chrome ores ...
Flotation of chromite and serpentine
Chromite is an important strategic mineral usually associated with other gangue minerals, mainly silicates. A good knowledge of the flotation behaviour of chromite and the establishment of conditions for its selective separation from the gangue minerals might help the future exploitation of chromite deposits.
The flotation behaviour of chromite with respect to the …
Maximum flotation of chromite occurs in the region where CuOH+ is formed, suggesting high concentrations of copper ions on the chromite surface lead to adsorption of xanthate and dithiophosphate and subsequent flotation.
Improved PGM-Chromite Selectivity in a Pneumo-Mechanical Flotation Cell
"The Upper Group 2 (UG2) reef in the Bushveld Complex in South Africa hosts an estimated 40% of the world's Platinum Group Metal (PGM) resources. The processing of this ore via flotation poses two particular challenges: limiting the levels of chromite in the concentrate to reduce downstream smelting problems, and enhancing …
Flotation of chromite and serpentine
The world supply and reserves of chromite or chrome ore (FeCr 2 O 4 ) have been dominated mainly by South Africa and the ex-USSR, which made chromite a strategic material in many
Flotation Cell | Flotation Machine | Flotation Separator | Ore
GTEK Flotation Cell Description. Flotation machine, which is also called flotation separator, can be used to achieve specific separations from complex ores such as lead-zinc, copper-zinc, etc.
Recover Chromite by Flotation
Table of Contents This report describes an investigation by the Bureau of Mines of flotation techniques for the recovery of chromite from fine-grained disseminated ores. Reported work on the concentration of chromiferous materials shows that flotation has been applied almost exclusively to slime-free pulps. Therefore, chromium recoveries …
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