+86-21-58386256

Different Machines to Meet All Needs

depressants in froth flotation

  • Flotation Froth Management Upgrade

    Optimize cell froth carry rates properties and stability while achieving thicker froth beds with a custom designed froth recovery set up from Outotec There are limitations to the volume of material the froth phase can support and transport to the flotation cell s launder lip in any given period.

    Chat Online
  • best depressant in froth floatation process series used in

    Flotation Frother Flotation Depressant Special Flotation Reagents Flocculant CASE EPC ABOUT US VIDEO INFO CENTER News FAQs CONTACT US Y X > AIPage Sitemap > YX depressant in froth floatation process series used in flotation of ores.

    Chat Online
  • INVESTIGATION OF EFFECTIVE PARAMETERS FOR MOLYBDENITE

    requirements for a good flotation frother have been listed which also include low sensitivity to changes in pH and dissolved salt content However the frothing in porphyry copper flotation is generally controlled by pH The presence of clay in the ore is the main reason for unstable froths and lowered frothing

    Chat Online
  • Cationic guar gum as a depressor for gangue in froth

    Flotation is one of the important opera tions in ore beneficiation process Chemical auxilliaries play an important role in the froth flotation process 1 In order to obtain a successful flotation of slimy sulphide ores two types of chemical auxilliaries are basically in use i e i

    Chat Online
  • Coal cleaning by froth flotation

    to study the effect of different parameters such as frother dosage oily collectors pyrite depressants and various combinations of these reagents Flotation tests were also conducted with Appalachian coals for comparison Iowa coals did not respond as well to froth flotation as Appalachian coals.

    Chat Online
  • TECHNICAL NOTES 9 FLOTATION

    froth layer Particles that are retained in the froth are recovered at the lip of the froth weir at the edge of the flotation cell The recovery of the froth is accomplished by the natural mobility of the froth which causes it to flow over the weir and the recovery is sometimes assisted by mechanical paddles.

    Chat Online
  • Floatation

    30 01 2015  CHEMICALS OF FLOTATION Chemicals are required 1 To control the relative Hydrophobicities between the particles 2 To maintain proper froth characteristics The different types of chemicals involved are COLLECTORS FROTHERS REGULATORS ACTIVATORS DEPRESSANTS pH MODIFIERS 11 12.

    Chat Online
  • Role of Surfactants in Mineral Processing An Overview

    10 11 2018  Hence froth flotation is the single most important unit operation which is the root solution to all these problems and used for the recovery and upgradation of valuable mineral especially below 150 Froth flotation which uses the difference in physico chemical surface properties of minerals is employed in several industries for fines processing.

    Chat Online
  • Accounting for the froth in batch flotation tests

    sharp transition from a weakly frothing condition to a strongly frothing one By necessity flotation froths are weakly stable froths which need to breakdown rapidly for further treatment As a result all reagents used in the recovery of valuable minerals by flotation can affect either directly or indirectly the stability of the froth.

    Chat Online
  • Recent developments and advances in formulations and

    26 10 2010  Over the last two decades significant advances have been made in the field of chemical reagents used in froth flotation a solids separation technique whose success depends on the use of a wide variety of both inorganic and organic reagents including polymers for controlling the wetting behavior of solid surfaces particle dispersion or aggregation and bubble stability.

    Chat Online
  • Investigation of the Effect of Different Frother Blends on

    P Franzidis 2012 The effect of frother blends on the flotation performance of selected PGM bearing ores Presented at and in proceedings of XXVI International Mineral Processing Congress New Delhi India September 24 28 2012 F Ngoroma J Wiese J P Franzidis 2013 The effect of frother blends on the flotation

    Chat Online
  • depressants in froth flotation

    depressants in froth flotation Home depressants in froth flotation Surfactant trade name summaryHuntsman 1 1 Froth Flotation Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a

    Chat Online
  • Flotation Behavior of Complex Sulfide Ores in the Presence

    set no depressants were used and the ore was floated in the presence of the collector and the frother as the only After flotation both the froth products concentrates and tailings were collected dried weighed and assayed for Cu Pb Zn and Fe contents The elemental analysis

    Chat Online
  • Froth floatation

    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.

    Chat Online
  • ROLE OF STARCH AND METABISUPHITE ON PURE PYRITE AND

    dithiophosphinate group was used as a collector in the flotation of pyrite Sodium meta bisulphite Na 2 S 2 O 5 and caustified starch were used as depressants Methyl iso butyl carbinol MIBC was used as a frother and lime and H 2 SO 4 were used as pH regulators Fig 2 The flow sheet of ore flotation tests 3 Results and discussion 3.1

    Chat Online
  • depressants in froth flotation

    30 05 2020  Depressants prevent certain type of particles from forming froth during froth floatation process A common depressant used in the froth floatation of lead sulphide is sodium cyanide When the ore containing ZnS and PbS is subjected to froth floatation process in the presence of NaCN then only PbS forms the froth.

    Chat Online
  • Surface Chemistry of Froth Flotation

    The process of froth flotation is an outstanding example of applied surface chemistry It is extensively used in the mining mineral metallurgical and chemical industries for separation and selective concentration of individual or activators and depressants.

    Chat Online
  • INVESTIGATION OF EFFECTIVE PARAMETERS FOR MOLYBDENITE

    requirements for a good flotation frother have been listed which also include low sensitivity to changes in pH and dissolved salt content However the frothing in porphyry copper flotation is generally controlled by pH The presence of clay in the ore is the main reason for unstable froths and lowered frothing

    Chat Online
  • depressants in froth flotation

    08 10 2016  In the rougher float depressants are added to produce a manageable froth and improve the grade by reducing the overall amount of the naturally floating gangue in the concentrates Depending on dosage depressants may also affect the recovery of the valuable minerals in the ore positively by slime cleaning or negatively by depression.

    Chat Online
  • The effect of conditioning on Froth Flotation

    FROTH FLOTATION A thesis submitted to the UNNERSITY OF CAPE TOWN in fulfilment of the requirements for the degree of MASTER OF SCIENCE IN ENGINEERING by Daryl Henwood B.Sc Chem Eng Cape Town Department of Chemical Engineering University

    Chat Online
  • SOLVED NaCN used in the froth flotation method for the

    The froth is light and is skimmed off It is then dried for recovery of the ore particles Sometimes it is possible to separate two sulphide ores by adjusting proportion of oil to water or by using depressants Example In case of an ore containing Z nS and P bS the depressant used is N aC N.

    Chat Online
  • The Application of Xanthate in Froth Flotation Process

    11 04 2019  Xanthate Application in Copper Froth Flotation In the flotation process of copper ore xanthate mainly reacts with Cu2 Therefore when processing minerals containing more Cu2 on the surface the effect of xanthate is stronger and the order of its action is Cu2S > CuS > Cu5FeS4 > CuFeS2 4 Xanthate Application in Galena Froth Flotation.

    Chat Online
  • Froth Flotation Chemicals Market

    The Froth Flotation Chemicals Market is expected to register a CAGR of over 3 during the forecast period Mining industry is the largest end user for froth flotation chemicals The chemicals are used in mining activities according to the nature of the mine explored in the area.

    Chat Online
  • Trithiocarbonates as depressants in ore flotation

    Froth flotation is a process for concentrating minerals from ores In a froth flotation process the ore is crushed and wet ground to obtain a pulp Additives such as collecting or mineral flotation agents and frothing agents are added to the pulp to assist in subsequent flotation steps in separating valuable minerals from the undesired portions of the ore.

    Chat Online
  • Choose the correct statement s for froth flotation

    Click here👆to get an answer to your question ️ Choose the correct statement s for froth flotation process which is used for the concentration of sulphide ore.a It is based on the difference in the ability of different minerals to become wet.b It uses sodium ethyl xanthate C2H5OCS2Na as collector.c It uses NaCN as a depressant in the mixture of ZnS and PbS where ZnS forms soluble

    Chat Online
  • Flotation Chemistry

    The Reagent Research Group RRG an industry collaboration between the flotation chemistry research team and selected South African Platinum producers currently Anglo American Platinum Impala Platinum and Lonmin Platinum was established in 1999 as the Depressant Research Facility DRF with the aim to establish a centre for the characterisation and research of polymeric depressants in

    Chat Online
  • Depressants in Nonsulfide Mineral Flotation.

    Request PDF On Nov 4 2007 A.E.C Peres and others published Depressants in Nonsulfide Mineral Flotation Find read and cite all the research you need on ResearchGate

    Chat Online
  • Common Questions About Froth Flotation Process Technology

    17 04 2019  In modern froth flotation separation technology mechanical aeration stirring flotation method is mostly adopted.According to different requirements of ores different flotation methods are adopted such as positive flotation or reverse flotation separate flotation or combination of flotation and magnetic or gravity separation flotation and multi stage grinding so as to improve the

    Chat Online
  • Which of the following statements is correct about the

    Froth floatation method is used for the concentration of sulphide ores The process is based on the preferential wetting properties with the frothing agent and water Sodium ethyl xanthate collector is added to enhance the non wettability of sulphide ore particles a nd depressants are used to prevent certain types of particles from forming froth with the bubbles.

    Chat Online
  • the role of activators in froth flotation

    Froth flotation 700 NSF 700 Qualification Postgraduate the role of activators depressants and pH regulators as well as an investigation of frothers and froth stability with reference to recent industrial developments Aspects of flotation practice are addressed Experimental methods for laboratory and plant trials basic and complex .

    Chat Online
  • ROLE OF DEPRESSENT IN FROTH FLOATATION PROCESS

    12 01 2013  Depressants prevent certain type of particles from forming froth during froth floatation process A common depressant used in the froth floatation of lead sulphide is sodium cyanide When the ore containing ZnS and PbS is subjected to froth floatation process in the presence of NaCN then only PbS forms the froth.

    Chat Online
  • Depressants

    Depressants make it possible to increase final recovery consistently without sacrificing concentrate grade They can either depress the effect of hydrophobic gangue minerals in the ore that would otherwise report with the froth along with the desired mineral or hold down the desired mineral while floating the undesirable gangue.

    Chat Online
  • Measurements of particle loading on bubbles in froth flotation

    recovered by true flotation that reports to the concentrate the froth flow number was defined as the ratio between the total mass of solids recovered in concentrate by true flotation entrainment and the mass of solids entering the froth by true flotation i.e collected mineral particle bubble aggregates .

    Chat Online
  • what is the role of Depressant in froth floatation method

    17 01 2012  Depressants prevent certain type of particles from forming froth during froth floatation process A common depressant used in the froth floatation of lead sulphide is sodium cyanide When the ore containing ZnS and PbS is subjected to froth floatation process in the presence of NaCN then only PbS forms the froth.

    Chat Online
  • Common Questions About Froth Flotation Process Technology

    17 04 2019  In modern froth flotation separation technology mechanical aeration stirring flotation method is mostly adopted.According to different requirements of ores different flotation methods are adopted such as positive flotation or reverse flotation separate flotation or combination of flotation and magnetic or gravity separation flotation and multi stage grinding so as to improve the

    Chat Online
  • The Effects of Microwave Treatment on the Froth Flotation

    some cases the production of a stable froth Additional flotation tests to confirm results of tested collectors/depressants are needed Complete mineral analysis of all tested samples is needed Further research on the effects of microwave treated flotation using Benzo acid and Flotinor SM15 Method/Results References

    Chat Online
  • Improvement of the froth flotation of LiAlO2 and melilite

    14 10 2021  Next to collectors and pH values froth flotation can also be influenced by frothers modifiers depressants and flocculants 22 Dissolved metallic ions

    Chat Online
  • Investigation of the effect of the reagent suite in froth

    This is a flotation chemistry study that adopted a two level four factor 24 factorial experimental design to evaluate the simultaneous effects of the chemical parameters with particular reference to collector depressant frother and ionic strength of the synthetic plant water as well as determining the possible interactive effects between the chosen parameters.

    Chat Online
  • Investigation of the Effect of Different Frother Blends on

    P Franzidis 2012 The effect of frother blends on the flotation performance of selected PGM bearing ores Presented at and in proceedings of XXVI International Mineral Processing Congress New Delhi India September 24 28 2012 F Ngoroma J Wiese J P Franzidis 2013 The effect of frother blends on the flotation

    Chat Online