Chemistry Of Pyrite Depression In Flotation

  • Pyrite depression by AMBS - Froth Flotation

    While I was studying flotation using seawater, I had a problem with understanding the reason why Aeration and Sodium Metabisulfite is used as a Pyrite depressant in Cu-Mo flotation in seawater. An article said that sufficient Cu-Mo recovery is attained at the expense of allowing large amount of pyr

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  • Chemistry Of Pyrite Depression In Flotation

    Chemistry of pyrite depression in flotation barite processing plant . number of smb in china types of coal feeders used in power plant . chemistry of flotation. . Read More. Where To Buy Your Sensefly Drone. 3112018018332are you interested in learning how sensefly drone solutions can meet your business needs would you like to organise a handson demo, or get a local . Read More

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  • depression carbonate depression in flotation

    Pyrite Depression By Reduction Of Solution Oxidation Potential----- ABSTRACT A study of pyrite depression by reducing agents with potassium ethylxanthate as collector indicates that pyrite may be depressed effectively in the flotation of both lead and copper sulfide ores without the use of

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  • (PDF) A review on electrochemical behavior of

    It has been found that moderately oxidizing conditions are favorable for collector-less flotation of pyrite while strongly reducing or oxidizing potentials lead to its depression. Increasing the

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  • FTIR and XPS studies of surface chemistry of

    OSTI.GOV Conference: FTIR and XPS studies of surface chemistry of pyrite in flotation Title: FTIR and XPS studies of surface chemistry of pyrite in flotation Full Record

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  • Cyanide chemistry and its effect on mineral

    In the process of chalcopyrite–pyrite flotation, depression of pyrite is of great significance. In this study, tannic acid (TA) was used to replace traditional inorganic reagents for depression

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  • Pyrite Flotation - Froth Flotation (Sulphide &

    Can you list the factors affects the floatability of pyrite from refractory low grade ore.I used a Wemco lab flotation cell and aimed on analysing factors like collector dosages (PAX), Activator (Copper sulphate),MIBC, pH and others like pulp density and particle size (70 and 150 microns) .However

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  • Pyrite Depression in Copper Flotation

    The Pyrite Depression in a Copper Only Flotation circuit is simple enough. If your froth flotation system only tries to recover chalcopyrite-copper, you need to bring the plant's pH up to the other side (right side) of the PYRITE curve. The more flotation collector you have on, the higher you will need to increase that pH for effective pyrite depression. You also need to insure your pyrite

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  • The Adsorption of Cu Species onto Pyrite Surface

    Figure 1 shows that pyrite exhibits good flotation performance at pH range of 4 to 9 when in the absence of CuSO 4, and as much as 80% of the pyrite can be floated. But at a pH range of 9 to 12, pyrite is depressed and the recovery decreases significantly with the increase in pH.

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  • Diethylenetriamine depression of Cu-activated

    01.03.2014· The results showed that DETA affects the flotation behaviour and surface chemistry of pyrite. However, high dosages are required. The depression action of DETA on Cu-activated pyrite was attributed to both the removal of surface copper to form soluble Cu–DETA complex in solution and competition for Cu sites on the activated pyrite surface.

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  • chemistry of pyrite depression in flotation

    The solution chemistry of sodium silicate and implications for pyrite flotation have been studied In addition to flotation and sedimentation tests electrophoresis inductively coupled plasma (ICP) tests and X-ray photoelectron spectroscopy (XPS) have been used The flotation and sedimentation results show that lizardite causes problems in the flotation of pyrite by adhering to the pyrite

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  • Chemistry Of Pyrite Depression In Flotation

    Mar 01, 2018· Flotation of any given mineral is intimately bound up with the degree of dispersion or flocculation of that mineral in the pulp and it may be aaid(l4) that flotation is. chemistry of pyrite depression in flotation. Our chemistry of pyrite depression in flotation Keep up with the latest news, tips and features right here! Laliberty, Dennis M.,

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  • The depression of pyrite in selective flotation by

    01.10.2016· Janetski et al. (1977) studied the depression of pyrite flotation from an electrochemical viewpoint and found that an increase in pH facilitated pyrite oxidation. It was suggested that oxidation of pyrite replaced oxidation of xanthate as the dominant anodic process. Thus, the formation of dixanthogen is inhibited at high pH.

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  • Pyrite depression by phosphates in coal

    The selective depression of pyrite from the Kentucky No. 9 coal seam was systematically examined using various kinds of inorganic and organic chemicals. Most of the organic chemicals tested showed little selectivity in pyrite depression. It was found that both orthophosphate and pyrophosphate were effective for the selective depression of coal pyrite in coal flotation using fuel oil as a

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  • Pyrite depression by dextrin in flotation with

    Depression of pyrite by dextrin in flotation with xanthates has been studied. The adsorption of dextrin and xanthates at the pyrite/aqueous solution interface has been investigated through electrokinetics, Raman spectroscopy and batch adsorption studies using oxidized pyrite. Microflotation studies were undertaken to evaluate the pyrite depression with dextrin using ethyl and propyl xanthates

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  • Pyrite depression by AMBS - Froth Flotation

    While I was studying flotation using seawater, I had a problem with understanding the reason why Aeration and Sodium Metabisulfite is used as a Pyrite depressant in Cu-Mo flotation in seawater. An article said that sufficient Cu-Mo recovery is attained at the expense of allowing large amount of pyr

    Get Price
  • FTIR and XPS studies of surface chemistry of

    OSTI.GOV Conference: FTIR and XPS studies of surface chemistry of pyrite in flotation Title: FTIR and XPS studies of surface chemistry of pyrite in flotation Full Record

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  • The Role of Lime in Xanthate Flotation of Pyrite

    The depression of pyrite with lime in xanthate flotation was investigated by means of flotation tests, adsorption studies and electrokinetic potential measurements. The results obtained are summarized as follows: 1. In xanthate flotation of pyrite, lime is more effective than sodium hydroxide as a depressant. 2.

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  • An investigation of pyrite depression in coal

    OSTI.GOV Book: An investigation of pyrite depression in coal flotation by electrochemical pyrite surface control

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  • Cyanide chemistry and its effect on mineral

    01.11.2014· Effect of cyanide on iron sulphide minerals flotation Of all the sulphide minerals studied so far, the depression of pyrite by free cyanide is the best understood. Free cyanide at a concentration as low as 10 mg/L NaCN was found to significantly depress pyrite flotation using sodium isopropyl xanthate (SIPX) as collector (Wet et al., 1997).

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  • Pyrite Depression - Froth Flotation (Sulphide &

    To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN Use Add New Topic to ask a New Question/Discussion about Flotation. OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. Use Add Comment = to comment on someone else's

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  • Pyrite Depression in Copper Flotation

    The Pyrite Depression in a Copper Only Flotation circuit is simple enough. If your froth flotation system only tries to recover chalcopyrite-copper, you need to bring the plant's pH up to the other side (right side) of the PYRITE curve. The more flotation collector you have on, the higher you will need to increase that pH for effective pyrite depression. You also need to insure your pyrite

    Get Price
  • carbonate depression in flotation - kinesiologie

    Solution chemistry of carbonate minerals and its effects Jun 30, 2017· Abstract. The effects of carbonate minerals (dolomite and siderite) on the flotation of hematite using sodium oleate as a collector were investigated through flotation tests, supplemented by dissolution measurements, solution chemistry calculations, zeta-potential measurements, Fourier transform infrared (FTIR

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  • Mechanism of Depression by Fe3+ During

    They found that the complete or partial depression of pyrite is mainly attributed to the reactions between xanthate and ferrous/ferric ions to form the poorly hydrophobic ferric dihydroxy xanthate on the surfaces and in solution. The flotation results showed that ferrous ions depress the pyrite near this pH range more remarkably than ferric ions.

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