important reagents in the froth flotation

  • Home
  • >
  • important reagents in the froth flotation

Flotation Reagents - 911 Metallurgist

08/06/2016  Types of Flotation Reagents Flotation reagents may be roughly classified, according to their function, into the following groups: Frothers, Promoters, Depressants, Activators, Sulphidizers, Regulators. The order of these groups is no indication of

More

Flotation Frothers - Frothing Agents

22/06/2015  Testing Frother Performance. The next reagent that is added is the Flotation FROTHER. The frother strengthens the surface tension of the air that is injected into the flotation cell. As the air rises in the shape of bubbles, they come into contact with the

More

What are the three major froth flotation reagents? - Quora

Froth floation reagents are used in process of ores. Reagents classification is based on its function and it is common for some reagents may be doing multiple functions The reagent functions are - collectors, forthers, regulators depressants (common are lime, sodium cyanide, zinc sulphate.)

More

Handbook of Flotation Reagents ScienceDirect

Basic frothers are represented by pyridine and homologs, recovered as by-products from coal tar distillation. Neutral frothers are the most important group of frothers used widely in flotation of base-metal ores, oxidic minerals, and industrial minerals. They are functional in both acidic and alkaline pulps. Select 4 - Modifying Reagents

More

Froth Flotation - an overview ScienceDirect Topics

The reagents which are used in froth flotation are usually specific in their action, and the choice of suitable reagents is usually made as a result of tests on small-scale equipment. Mixtures of more than two components may be separated in stages using different reagents at each stage. Sometimes the behaviour of a system is considerably influenced by change in the pH of the solution, and it is then

More

Flotation Reagent - an overview ScienceDirect Topics

Flotation reagents are not only collectors and frothers, but include equally large groups of modifiers, regulators, depressants and activators. This latter group of flotation reagents is often neglected in basic research studies. It is not the intention of this text to prescribe recipes for particular ores, but is an attempt in some way to summarize the experience of many years of laboratory and plant studies of different

More

1 Froth Flotation – Fundamental Principles

Froth flotation is a good example of an engineering “system”, in that the various important parameters are highly inter-related, as shown in Figure 1. It is therefore important to take all of Chemistry Components Collectors Frothers Activators Depressants pH Equipment Components Cell Design Agitation Air Flow Cell Bank Configuration Cell Bank Control Operation Components Feed Rate ...

More

Classification of Flotation Frothers - MDPI

Keywords: foam; froth; separation; classification; selectivity; efficiency; power; kinesis 1. Introduction Frothers are very important reagents playing a multiple role in flotation of particulate matter. The frothers facilitate formation of either foam or froth and favourably modify the structure of films

More

The Importance of pH in Flotation - 911 Metallurgist

10/08/2015  In flotation, pH control is a vital method to control selective mineral separation. A standard depressant that is used is an Alkali. An Alkali is any substance that when mixed with Acid will neutralize each other and form a new chemical substance called a BASE. This is very important. The ore may be either alkaline or Acidic. To have a positive control over flotation, it is necessary to be able to

More

Reagent Optimization across a UG2 Plant

Abstract— Reagent optimization is very important in the recovery of valuable metals from their ore via flotation. This is particularly important for large platinum operations where correct reagent regime and addition system can provide improvement opportunities in recovery and grade. Also reagent optimization can reduce reagent costs for the rougher, scavenger and cleaner flotation units ...

More

important reagents in the froth flotation 」

Froth flotation is a good example of an engineering "system", in that the various important . 1.5 Reagents. The properties of raw mineral mixtures suspended in plain water are rarely suitable for froth flotation. Chemicals are needed both to control the relative hydrophobicities of the The nonionic collectors are simple.

More

Handbook of Flotation Reagents ScienceDirect

The volume of froth generated in the flotation machine under standard operating conditions is often referred to as froth power. The froth power is influenced by the type of collector and frother used. Acidic frothers perform well only in acid pH. Typical examples of these reagents are phenols and alkyl-lauryl sulfonates. Basic frothers are represented by pyridine and homologs, recovered as by ...

More

1 Froth Flotation – Fundamental Principles

Froth flotation is a good example of an engineering “system”, in that the various important parameters are highly inter-related, as shown in Figure 1. It is therefore important to take all of Chemistry Components Collectors Frothers Activators Depressants pH Equipment Components Cell Design Agitation Air Flow Cell Bank Configuration Cell Bank Control Operation Components Feed Rate ...

More

Advantages and Disadvantage of Froth Flotation Method

09/11/2019  Disadvantages of froth flotation method 1. Reagent consumption. In the froth flotation method,the use of flotation reagents plays an important role in the final beneficiation index. High reagent consumption will inevitably lead to higher flotation cost, thus affecting the economic benefits of the plant. It is suggested that the concentrator should adopt the strict medicament system according ...

More

FLOATATION REAGENTS

02/03/2014  FLOATATION REAGENTS Xanthate Application: It has a strongest collector ability for sulfide mineral, and also can be used as diferential flotation reagent for non-ferrous ore. It’s commonly used in lead and zinc ore galena mixed priority of the flotation. Dithiophosphate Application: It is efficient collecting agent for sulphide ores such as sliver sulphide, copper sulphide, lead sulphide and ...

More

What's the Function of Flotation Froth in the Froth ...

14/01/2020  Froth plays a very important role in the froth flotation process. Because of these froth, ore particles or mineral powder can adhere to the sticky froth, then the froth carries these particles out of the pulp, then reaches washing surfaces to remove ore particles, thus achieving froth flotation process and obtainning the concentrate.

More

Handbook of Flotation Reagents - Webs

Handbook of Flotation Reagents Chemistry, Theory and Practice: Flotation of Sulfide Ores by Srdjan M. Bulatovic • ISBN: 0444530290 • Publisher: Elsevier

More

Interpreting the role of reagents in the flotation of ...

Interpreting the role of reagents in the flotation of platinum-bearing Merensky ores media, the mechanism of activation in this pH range may be via the reaction of the collector with hydroxide precipitates (Ralston and Healy, 1980; Laskowski et al., 1997). Buswell and Nicol (2002) carried out an electrochemical investigation of the activation of pyrrhotite in both acid and alkaline medium ...

More

Flotation stabilization and optimization

The control of flotation plants can be achieved by controlling aeration rate, reagent addition or froth depth. However, these control actions are effective over different time scales. Reagent addition is slower in its effect as some conditioning time is required. Also since reagents are typically introduced at the head of the circuit and at

More

Reagent Optimization across a UG2 Plant

Abstract— Reagent optimization is very important in the recovery of valuable metals from their ore via flotation. This is particularly important for large platinum operations where correct reagent regime and addition system can provide improvement opportunities in recovery and grade. Also reagent optimization can reduce reagent costs for the rougher, scavenger and cleaner flotation units ...

More

important reagents in the froth flotation 」

Froth flotation is a good example of an engineering "system", in that the various important . 1.5 Reagents. The properties of raw mineral mixtures suspended in plain water are rarely suitable for froth flotation. Chemicals are needed both to control the relative hydrophobicities of the The nonionic collectors are simple.

More

1 Froth Flotation – Fundamental Principles

Froth flotation is a good example of an engineering “system”, in that the various important parameters are highly inter-related, as shown in Figure 1. It is therefore important to take all of Chemistry Components Collectors Frothers Activators Depressants pH Equipment Components Cell Design Agitation Air Flow Cell Bank Configuration Cell Bank Control Operation Components Feed Rate ...

More

Effect of reagents and minerals on froth electrical ...

The effect of three chemical reagents used in froth flotation, and also the effect of pH, was studied: dosage of Dowfroth (Test 1), xanthate (Test 2), zinc sulphate (Test 3) and pH (Test 4). Each test consists of three step tests, where the value of variable in question was changed while other values were kept at their base levels. Each test was performed twice. Assumption was that the ...

More

Advantages and Disadvantage of Froth Flotation Method

09/11/2019  Disadvantages of froth flotation method 1. Reagent consumption. In the froth flotation method,the use of flotation reagents plays an important role in the final beneficiation index. High reagent consumption will inevitably lead to higher flotation cost, thus affecting the economic benefits of the plant. It is suggested that the concentrator should adopt the strict medicament system according ...

More

Flotation Reagent Using Instructions CNFREE

24/05/2019  Flotation frothers, also known as flotation foaming agent, is an essential flotation agent for froth flotation. The role of flotation frothers is mainly to produce a large amount of foam in the pulp, so that the available minerals are effectively enriched at the interface between air and water to create the conditions required for flotation process.The quality of flotation frothers directly ...

More

Interpreting the role of reagents in the flotation of ...

Interpreting the role of reagents in the flotation of platinum-bearing Merensky ores media, the mechanism of activation in this pH range may be via the reaction of the collector with hydroxide precipitates (Ralston and Healy, 1980; Laskowski et al., 1997). Buswell and Nicol (2002) carried out an electrochemical investigation of the activation of pyrrhotite in both acid and alkaline medium ...

More

Cassiterite Flotation - Tin Oxide - 911 Metallurgist

06/07/2015  When it comes to flotation of a Tin rich ore like cassiterite, collector is a most important reagent as it determines froth grade and recovery. The optimum addition is controlled by several factors; ore type, head grade, product grade and recovery. The collectors used in cassiterite flotation often have an effect on the froth properties. Excessive collector additions can give froth properties ...

More

Flotation stabilization and optimization

The control of flotation plants can be achieved by controlling aeration rate, reagent addition or froth depth. However, these control actions are effective over different time scales. Reagent addition is slower in its effect as some conditioning time is required. Also since reagents are typically introduced at the head of the circuit and at

More

Interpreting the role of reagents in the flotation of ...

Interpreting the role of reagents in the flotation of platinum-bearing Merensky ores J.G. WIESE, M. BECKER, D.J. BRADSHAW and P.J. HARRIS Mineral Processing Research Unit (MPRU), Rondebosch, South Africa Reagents are added to the flotation process of Merensky Reef ores to achieve specific functions that enable the separation of valuable minerals from gangue minerals on the basis of the ...

More

Reagent Optimization across a UG2 Plant

Abstract— Reagent optimization is very important in the recovery of valuable metals from their ore via flotation. This is particularly important for large platinum operations where correct reagent regime and addition system can provide improvement opportunities in recovery and grade. Also reagent optimization can reduce reagent costs for the rougher, scavenger and cleaner flotation units ...

More

Effect of reagents and minerals on froth electrical ...

The effect of three chemical reagents used in froth flotation, and also the effect of pH, was studied: dosage of Dowfroth (Test 1), xanthate (Test 2), zinc sulphate (Test 3) and pH (Test 4). Each test consists of three step tests, where the value of variable in question was changed while other values were kept at their base levels. Each test was performed twice. Assumption was that the ...

More

Flotation Reagent Using Instructions CNFREE

24/05/2019  Flotation frothers, also known as flotation foaming agent, is an essential flotation agent for froth flotation. The role of flotation frothers is mainly to produce a large amount of foam in the pulp, so that the available minerals are effectively enriched at the interface between air and water to create the conditions required for flotation process.The quality of flotation frothers directly ...

More

Interpreting the role of reagents in the flotation of ...

Interpreting the role of reagents in the flotation of platinum-bearing Merensky ores media, the mechanism of activation in this pH range may be via the reaction of the collector with hydroxide precipitates (Ralston and Healy, 1980; Laskowski et al., 1997). Buswell and Nicol (2002) carried out an electrochemical investigation of the activation of pyrrhotite in both acid and alkaline medium ...

More

IX. FROTH FLOTATION

Froth flotation is a process used to separate minerals, suspended in liquids, by selectively attaching them to gas bubbles. Hence, in flotation we have a three-phase system. The separation principle is based on the lack of affinity of the mineral surface towards water, a property denoted by hydrophobicity. Flotation is undoubtedly the most important and versatile mineral processing technique ...

More

Optimization of reagent dosages for copper flotation using ...

Froth flotation is a process used for selectively separating hydrophobic materials from hydrophilic. Various factors, such as the type and quantity of chemicals added[1−2], the bubble size[3], stator and rotor configuration[4] and residence time[5] influence the performance of a flotation unit. The types and quantity of the reagents are the most important part of the flotation process. In ...

More

Froth flotation - Wikipedia

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century. It has been described as "the single most important operation used for the ...

More

Interpreting the role of reagents in the flotation of ...

Interpreting the role of reagents in the flotation of platinum-bearing Merensky ores J.G. WIESE, M. BECKER, D.J. BRADSHAW and P.J. HARRIS Mineral Processing Research Unit (MPRU), Rondebosch, South Africa Reagents are added to the flotation process of Merensky Reef ores to achieve specific functions that enable the separation of valuable minerals from gangue minerals on the basis of the ...

More

Flotation Reagents - BASF

Flotation Reagents. BASF is committed to providing sustainable solutions to the mining industry. Our technology and diverse range of chemistries supports creative and innovative applications for flotation, whilst delivering optimum performance for phosphates, precious and base metals, iron ores, and various industrial minerals. Our flotation ...

More

The Froth Flotation Process:Past,Present and Future-In ...

Abstract. It is not easy to convey, in a few words, the enormous importance of the froth flotation process to the economy of the whole industrial world. It may suffice, for the present article, to quote rough estimates of the quantity of crushed ore which is treated annually by flotation — 2 x 10 9 tonnes — and the proportion of base-metals ...

More

Froth floatation - SlideShare

16/06/2013  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 such as Pb-Zn-Cu, floatation allows separate extraction of Pb, Cuand Zn.

More