This demand has resulted in the need to enhance processing of complex sulfide ores which are the primary sources of base metals Complex sulfide ores are concentrated mainly through flotation
Get PriceOrganic pyrite depressant An organic pyrite depressant obtained from corn Oxi 300 100 g/t was incorporated in reagent set 1 The flotation results are presented in Figures 6 8 Figure 6 shows that Oxi 300 improves the flotation kinetics of copper slightly but the ultimate recovery is similar with and without Oxi 300
Get PriceUnder the optimum conditions the grade of final concentrate increased from 0 94% to 21 3% with three cleaner stages Keywords Active pyrite Chalcopyrite Collector Flotation Optimization 1 Introduction Chalcopyrite is often associated with pyrite which is the most undesirable mineral with the same2018 6 27 respectively
Get PriceThe U S Department of Energy s Office of Scientific and Technical Information
Get PriceFig 1 compares the flotation recovery of jamesonite pyrite and marmatite at DDTC and DDA 1 25 × 10 4 mol/L and 3418A 3418A/DDA molar ratio 1 1 and 3418A/DDTC molar ratio 1 1 1 00 × 10 4 mol/L respectively The findings from the experiments showed that the five types of collectors exhibited a strong collection for jamesonite and the flotation recovery order was as follows 3418A
Get PriceHauts de France French pronunciation [o də fʁɑ̃s] ; Picard Heuts d Franche; lit Heights of France also Upper France is the northernmost region of France created by the territorial reform of French regions in 2024 from a merger of Nord Pas de Calais and Picardy Its prefecture is Lille The new region came into existence on 1 January 2024 after regional elections in December 2024
Get PriceAs stated previously the deltaic areas in the humid tropical zone with gentle flood rises and falls offer m a n y examples of agricultural use in the absence of adequate flood protection This however is a pre requisite to adequate water control of the land areas and to the introduction of modern farming practices
Get PriceFlotation Mostly working on Sulphide Type Ores that contain copper zinc cobalt and gold Conducting Locked cycle tests to foresee the plant performance before the optimization studies or
Get PriceDue to the optimum dissolution of the hydroxyl ion serpentine is positively charged and tends to cover the sulfide mineral surface as a slime coating through electrostatic attraction which intensively worsens sulfide flotation To handle this problem the sodium of polyaspartic acid PASP was employed as the selective depressant for the flotation of pyrite from serpentine in this work
Get PriceIt was found that at 50 g/ton chitosan depressed 5 6% more pyrite as compared to conventional depressant NaCN at its optimum dosage Furthermore the measured assay values of pyrite in concentrates dropped by 1 2% when NaCN depressant was replaced with chitosan polymer
Get Pricerespectively Under the optimum conditions the grade of final concentrate increased from 0 94% to 21 3% with three cleaner stages Keywords Active pyrite Chalcopyrite Collector Flotation Optimization 1 Introduction Chalcopyrite is often associated with pyrite which is the most undesirable mineral with the same
Get PriceKeywords Active pyrite Chalcopyrite Collector Flotation Optimization 1 Introduction Chalcopyrite is often associated with pyrite which is the most undesirable mineral with the same Does Anyone Have Flotation Data Defining Optimum Eh Oct 09 2024 Does anyone have flotation data defining optimum Eh and pH for arsenian pyrite flotation
Get PriceFlotation experiments were conducted in a Denver type agitated flotation cell at the rougher stage The experimental results showed that increasing the pH from 8 to 10 at low agitation rate 1000 rpm enhanced the recovery from 80 36% to 85 22% while at high agitation rate 1200 rpm a slight declination occurred in the recovery
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Get PriceFlotation tests suggested that the detrimental effect of clay minerals on the flotation of pyrite increased as follows montmorillonite > kaolinite > illite With the help of rheology measurements it was found that montmorillonite significantly increased pulp viscosity which in turn substantially reduced pyrite recovery and grade
Get PriceHeterocoagulation/Dispersion between Serpentine and Pyrite and its Influence on Flotation LU Yi ping ZHANG Ming qiang FENG Qi ming OU Le ming ZHANG Guo fan LONG Tao
Get PriceIn this work a novel thiadiazole derivative 5 butylthio 1 3 4 thiadiazole 2 thiol CSC 1 was atom economically synthesized using easily sourced raw materials CS 2 N 2 H 4 ·H 2 O and haloalkane and then used for the flotation of galena and sphalerite from pyrite Flotation results showed that compared with ethyl xanthate
Get PricePyrite displays good flotation performance in the presence of xanthate at acidic to neutral pH conditions due to the formation of dixanthogen and possibly iron hydroxide xanthate complex At alkaline conditions when Cu 2 /Pb 2 activation occurs to enhance xanthate adsorption high pyrite flotation recoveries are also found
Get PriceAt low pH approximately pH 5 the iron dissolves from the mineral forming a hydrophobic surface deficient in iron and rich in sulfur thus resulting in a higher flotation rate Equation 1 At high pH pH > 9 the iron form a hydroxide on the surface which being a hydrophilic species decreases the flotation rate Equation 2
Get PriceGB2012621B GB7843583A GB7843583A GB2012621B GB 2012621 B GB2012621 B GB 2012621B GB 7843583 A GB7843583 A GB 7843583A GB 7843583 A GB7843583 A GB 7843583A GB 2012621 B GB2012621 B GB 2012621B Authority GB United Kingdom Prior art keywords yield increasing froth flotation concentration treatment mined coal Prior art date 1978 01 19 Legal status The legal status is an assumption and is not a
Get PriceThe effect of surface potential regulation on the flotation separation of pyrite and serpentine was investigated by a flotation test of artificial mixed ore as shown in Figure 8 In Figure 8 a we can see that the single mineral of pyrite had good floatability at pH < 10 and the flotation recovery was able to reach more than 90%
Get PriceIt is obvious that the adverse effect of serpentine on the flotation of pyrite could be eliminated with the addition of PA and the optimum dosage of PA is 40 mg/L Thus PA has been proved to be a potentially effective depressant to eliminate the adverse effect of serpentine on the flotation of pyrite 3 2 Turbidity measurements
Get PriceThe sulfur content of pyrite is 1 35% accounting for 56 49% of total sulfur After mechanical crushing the coal samples were sieved into different particle sizes according to the test requirements and sealed for storage 2 1 2 Experiment strains In this experiment the mine water was used as the raw solution for strain screening
Get PriceThis is usually done by flotation of arsenopyrite pyrite or other gold bearing sulfides Dit wordt meestal gedaan door flotatie van arseenpyriet pyriet of andere goud dragende sulfiden Fine particles present special problems in flotation Fijne deeltjes leveren speciale problemen op bij flotatie
Get PriceThe finer the material the greater is the percentage of recovery; the pyrite should pass at least a 170 mesh screen in order to get efficient flotation under the conditions of the tests Of the many factors affecting flotation only two—the oil and the other agent used—were made variable
Get PricePyrite particles having framboidal/altered texture are known to significantly affect pulp chemistry and adversely affect flotation performance Therefore the main objectives of this study were to demonstrate influence of pyrite mineralogy on the flotation of copper sulphidic ores and develop alternative conditions to improve the performance
Get Price1 It will be good to find out the optimum particle size firstly You mentioned 70um and 150 um I guess it s better to try several more sizes because the gap is too large between 70um and 150um The purpose of grinding is to achieve the sufficient liberation of pyrite without overgrinding
Get PriceEngineering Service for Pyrite Flotation Process Company Tomarok A Ş
Get PriceIn both lead and zinc circuits pyrite is the main sulphide gangue mineral It is critical to decrease the presence of iron Fe and Zn in the lead concentrate during the flotation of galena
Get PriceA thermodynamic model was developed for the roasting process in order to determine the optimum experimental conditions The experimental variables investigated were microwave energy and argon
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