define froth flotation

Froth Flotation | Definition of Froth Flotation by Merriam-Webster

Define froth flotation: flotation in which air bubbles are introduced into a mixture of finely divided ore or other material with water and a…

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Froth flotation - Wikipedia

Montana Tech professor Antoine Marc Gaudin defined the early period of flotation as the mechanical phase while by the late 1910s it entered the chemical phase. Discoveries in reagents, especially the use of xanthates patented by Minerals Separations chemist Cornelius H. Keller, increased the capture of minerals through...

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Froth Flotation - Department of Chemical Engineering

Froth flotation can be adapted to a broad range of mineral separations, as it is possible to use chemical treatments to selectively alter mineral surfaces so that they have the necessary ... difficult to develop predictive models for froth flotation, although work is being done to develop ... definition of the ratio of concentration:.

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Froth flotation | Define Froth flotation at Dictionary.com

Froth flotation definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up now!

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Froth flotation | Article about froth flotation by The Free Dictionary

Looking for froth flotation? Find out information about froth flotation. A process for recovery of particles of ore or other material, in which the particles adhere to bubbles and can be removed as part of the froth Explanation of froth flotation.

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Froth-flotation process - The Free Dictionary

Define Froth-flotation process. Froth-flotation process synonyms, Froth-flotation process pronunciation, Froth-flotation process translation, English dictionary definition of Froth-flotation process. 1. A process of separating the substances contained in pulverized ore or the like by depositing the mixture on the surface of a...

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Froth floatation process - Encyclopedia - The Free Dictionary

Looking for Froth floatation process? Find out information about Froth floatation process. A process for recovery of particles of ore or other material, in which the particles adhere to bubbles and can be removed as part of the froth Explanation of Froth floatation process.

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What is Froth Flotation? - wiseGEEK

Feb 15, 2018 ... Froth flotation is the process of using air bubbles to separate materials based on their relative affinity for water. Bubbles...

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Introduction to Mineral Processing - Chevron Phillips Chemical

Froth flotation is considered to be the most widely used method for ore beneficiation. In ore beneficiation, flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer. Sulfide and non-sulfide minerals as well...

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Froth Flotation Process - 911 Metallurgist

Mar 25, 2017 ... The Froth Flotation Process is about taking advantage of the natural hydrophobicity of liberated (well ground) minerals/metals and making/playing on making them hydrophobic (water-repel) individually to carefully separate them from one another and the slurry they are in. For this purpose we use...

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Flotation definition and meaning | Collins English Dictionary

2. power or ability to float; buoyancy. 3. Also called: froth flotation. a process to concentrate the valuable ore in low-grade ores. The ore is ground to a powder, mixed with water containing surface-active chemicals, and vigorously aerated. The bubbles formed trap the required ore fragments and carry them to the surface froth,...

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Prediction of the metallurgical performances of a batch flotation ...

In the mineral processing industries, froth flotation is a common process for separation of the valuable from gangue minerals. Effective control of .... Finally, the source blocks are searched in the defined neighboring region in the second frame, assuming the froth movement direction is towards the cell lip. Download full-size...

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Kinetic approach to the study of froth flotation applied to a lepidolite ...

Jul 9, 2016 ... However, no study related to the kinetics of the concentration stage of lithium-containing minerals by froth flotation has yet been reported. To establish a factorial design of batch flotation experiments, we conducted a set of kinetic tests to determine the most selective alternative collector, define a range of...

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Kinetics of flotation. Order of process, rate constant distribution and ...

Aug 11, 2016 ... Kinetics of flotation. Order of process, rate constant distribution and ultimate recovery. 343 liquid and solid). Hence, the construction of mathematical models of flotation is proved to be very difficult. A flotation compartment can be defined as the pulp and froth. The transfer of any valuable or gangue...

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Froth Flotation - nptel

Jun 6, 2012 ... NPTEL - Chemical Engineering - Interfacial Engineering. Module 6: Lecture 6. Joint Initiative of IITs and IISc - Funded by MHRD. 1/20. Froth Flotation. Dr. Pallab Ghosh ... Of the flotation techniques, froth flotation is the only technique that has ..... Theoretical calculations for some well-defined flow types have.

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flotation - Archaeology Wordsmith

DEFINITION: Flotation in which the separation is enhanced by using a liquid to which a frothing agent, such as a detergent, has been added and bubbling air through it, forming a froth in which certain lightweight materials collect. Soil samples agitated in froth flotation, such as seeds and charcoal fragments, can be more...

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Low-Pressure Blowers and Mining: Froth Flotation and Tank Leaching

Jul 6, 2017 ... In this post we will look at two applications – froth flotation and tank leaching. We will review each application, how compressed air is used in the processes, and what type of low-pressure compression equipment might be used. What is froth flotation? The first application covered in this post is froth flotation,...

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An Overview of Optimizing Strategies for Flotation Banks - MDPI

Oct 10, 2012 ... Keywords: air profiling; mass-pull; peak air recovery (PAR); optimization; flotation bank. 1. Introduction ... Peak Air Recovery (PAR) Profiling. Air recovery (α) was first proposed by Woodburn et al. [11] as a froth stability index. It is defined as the air entering the cell that overflows as unburst bubbles. It can be...

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CPC Definition - B03D FLOTATION; DIFFERENTIAL ...

Chemical and mechanical aspects such as flotation agents (organic, inorganic or macromolecular), where the agents can act as collectors, frothers or depressants and the material treated by the flotation agent could be an ore, e.g. a coal or phosphate ore;. Froth-flotation processes;. Flotation machines, including pneumatic...

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Froth Floatation - Purdue Physics - Purdue University

Froth Flotation. After being rinsed, if the sample contains feldspar and mica it will be frothed. To efficiently separate feldspar and mica from quartz, we have ... In froth flotation it is very important to have a fresh, newly cracked surface. ... Then, pour off the feldspar/mica and what is left will be quartz and other heavy minerals.

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Froth flotation - Semantic Scholar

Froth flotation: kinetic models based on chemical analogy. F. Hernáinz *, M. Calero ... This paper studies several kinetic aspects of flotation of celestite and calcite in a mechanical cell with sodium dodecylsulphate as the collector agent, using ..... 1.1 and 1.35, what is lightly inferior to that found for other minerals by other...

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The PGM flotation predictor: Predicting PGM ore flotation ... - Mintek

Performance of froth flotation recovery plants for platinum group minerals (PGMs) is usually monitored by means of routine ... currently developing PGM flotation prediction software that uses data from automated mineralogy sys- tems to provide ... analysis, but are usually not resolved in the pre-defined tables. 0892-6875/$...

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Froth floatation - SlideShare

Jun 16, 2013 ... Froth floatation. 1. Froth FloatationPresented By:Gulfam Hussain; 2. Introduction Floatation is an extractive process where variousminerals can be selectively extracted. Flotation is a selective process and can be used toachieve specific separations from complex ores. For example, in poly-metal ores...

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Development of measurement of froth characteristics - Chalmers ...

froth stability of silica flotation where silica is separated from magnetite. ..... 2.1 Froth Flotation. Froth flotation, which was commercially introduced in mineral industry early in the. 20th century about 100 years ago, is applied in many ..... influence the superficial gas velocity in the froth, which is defined as the gas blew in.

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determination of the contributions by true flotation and ... - SAIMM

and the consequent changes in the composition of the pulp and the characteristics of the froth with time, are used in the calculation of a transfer factor, Xi (t), for entrained particles that belong to species i. The transfer factor describes the differential classification of entrained solids and water during flotation, and is defined as.

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Flotation frothers

Fast kinetics and offers controlled froth persistence. POLYFROTH® H23. Provides a close match to the bubble and froth characteristics of MIBC. Highly selective, demonstrates fast flotation kinetics and low froth persistence. POLYFROTH® H27. Hydrophobic and produces a drier froth with well-defined froth structure, wide...

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Flotation and Equipment Technology in Mining | Flotation Equipment ...

The surface of the selected mineral is made hydrophobic (water repellent) by the use of selective reagents and these particles get attached to the air bubbles that are introduced in the system and collected as froth whereas the hydrophilic (wetted) particles are left behind in the slurry. The separation process produce better...

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Froth Floatation Process - Embibe

(ii) Froth floatation process: In some cases for example, sulphides ores of copper, zinc and lead concentration is brought by this method. In this method advantage is taken of the preferential wetting of the ore by an oil. The finely ground ore is taken in a tank containing water and 1% of pine oil or terpentine oil. A strong...

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Oresome Froth Interactive - Oresome Resources

loading. Welcome to the Oresome mining and processing operation. If this is your first time here, come and meet the team. If you have been here before, just click on the stage you were up to. Meet the team. Introduction to the site. Tutorial on mineral separation. What is flotation? Flotation simulator. Further information on...

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Factors affecting the kinetics of froth flotation - White Rose eTheses ...

Factors affecting the kinetics of froth flotation. By. Jian-Guo Zhang .,.-,-. Submitted in accordance with the requirements for the degree of Doctor of Philosophy (ph.D). Department of Mining and Mineral Engineering. University of Leeds. June 1989...

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Oresome Froth Interactive - Oresome Resources

loading. Welcome to the Oresome mining and processing operation. If this is your first time here, come and meet the team. If you have been here before, just click on the stage you were up to. Meet the team. Introduction to the site. Tutorial on mineral separation. What is flotation? Flotation simulator. Further information on...

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Factors affecting the kinetics of froth flotation - White Rose eTheses ...

Factors affecting the kinetics of froth flotation. By. Jian-Guo ...... Factors. Affecting factors of flotation. Flotation. Froth phase. (Froth). 1) Physical,. Grain size. Specific gravity. 2) Chemical,. The floatabili ty after reacting with reagents. ...... the terms mass recovery and recovery are respectively defined as the relative weight.

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understanding froth behaviour with cfd - Imperial College London

Froth Flotation. Conceptually simple: ▫ Make the valuable mineral hydrophobic using surface chemistry, and add air bubbles. ▫ Hydrophobic particles stick to the ... What is so difficult? ▫ Multiple flow scales. ▫ Significant, rapid physical changes - coalescence. ▫ Multiple, interacting phases. ▫ Particles of different sizes,.

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Up-scaling of froth flotation equipment - repository.tudelft.nl

Jul 7, 2014 ... bubbles through the pulp, and the recovery of minerals by the froth zone. Since the functioning of these and other sub-processes may vary on different scales, the second partial research question is defined as: 2. What are the influences of the different sub-processes of the flotation cell on its performance?

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Performance Recognition for Sulphur Flotation Process Based on ...

Dec 20, 2012 ... A novel fault detection method based on froth texture unit distribution (TUD) is proposed to recognize the fault condition of sulphur flotation in real time. The froth texture unit number is calculated based on texture spectrum, and the probability density function (PDF) of froth texture unit number is defined as...

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Copper Mining and Processing: Processing of Copper Ores ...

This process uses a series of physical steps and high temperatures to extract and purify copper from copper sulfide ores, in four basic steps: 1) froth flotation, 2) thickening, 3) smelting, and 4) electrolysis. Following mining, transporting, and crushing to a consistent gravel or golf ball-size, the crushed ore is further processed...

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Tailings.info What are tailings? - Their nature and production

Froth flotation (figure 2) is the most widely used concentration method and is normally the first step in the mineral processing sequence where chemical reagents are introduced (Vick 1990). Gravity and magnetic separation techniques are also used to win the economic product from the ground ore. Gravity separation is used...

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US5876558A - Froth flotation deinking process for paper recycling ...

The term "froth stability" as used herein is an important factor in controlling froth flotation deinking efficiency, and is defined as the froth drainage half-life time in accordance with Pradham et al., "Stability of Aqueous Foams with Polymer Additives," J. Colloid and Interface Sci., 168, Page 333 (1994). The froth stability can be...

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Bitumen Extraction Explained | Oil Sands Magazine

Mar 24, 2016 ... Middlings circuits provide secondary bitumen recovery, where the low quality bitumen froth produced by the flotation cells is recycled back into the main vessel. Some operators also ... Contained within the fines fraction are clays, which are defined as fines less than 2 µm in size. Clays found in oil sands...

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Definition of flotation - Chemistry Dictionary

Definition of flotation. 1) Method by which hydrophobic (water-repelling) particles of an ore are separated from hydrophilic (water-attracting) particles of a metallurgical pretreatment process. Was this definition helpful?

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