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The selective flotation of enargite from other copper

Oct 01 2006The floatability of enargite (3Cu 2 S As 2 S 5 ) has been determined as a function of pulp potential to establish whether the flotation behaviour of the mineral differs sufficiently from that of other copper minerals thus offering the prospect of rejecting arsenic from Get price

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A review of copper–arsenic mineral removal from copper

Product specifications required a copper concentrate below 2000 ppm arsenic They utilised a fine grind approximately 20 μm to liberate tennantite and chalcopyrite Flotation tests resulted in 62–80% of the arsenic reporting to cleaner tails but so too did 7 4–14 1% of the liberated copper Get price

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The separation of arsenic from copper in a

Oct 19 2007Read The separation of arsenic from copper in a Northparkes copper–gold ore using controlled-potential flotation International Journal of Mineral Processing on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at Get price

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A critical review of surface properties and selective

Selective flotation by depression of enargite with sodium cyanide achieved no more than a partial separation with about 70% of the arsenic rejected but at the expense of about 45% of the copper Despite concluding that sodium cyanide is a suitable depressant for enargite and reducing arsenic content of copper concentrates the high associated copper losses were recognised Get price

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Flotation Behavior of Arsenopyrite and Pyrite and Their

H) on the floatability of arsenopyrite and pyrite which are single minerals in Hallimond tube by using xanthate as a collector On this basis the study further investigated the selectivity index of arsenopyrite and pyrite using a mixed sample of arsenopyrite and pyrite Get price

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MEI Blog Challenges in copper flotation

Sep 17 2011Arsenic-bearing sulfide minerals like tennantite are difficult to separate from other non-arsenic sulphide copperminerals in conventional copper flotation circuits The most successful approaches to effecting separation appear to be based on selective oxidation techniques and the Get price

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flotation zinc selective

copper arsenic flotation selectivity Study of Flotation Parameters for Copper Recovery activity and size created the considerable problems in implementation of selective flotation to obtain conditional copper and zinc concentrat Since the demand for copper is growing constantly the need to develop processes and technologies to treat copper resources with high level of Get price

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Arsenic in Complex Orebodies

The selective flotation of enargite from copper sulphides in a complex ore system is discussed in this paper Methodology and Results A complex ore system was selected which had various levels of arsenic as enargite Two ore samples with different arsenic levels HAS (250 ppm) and LAS (100 ppm) were selected to provide a range of arsenic level Get price

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Selective flotation of enargite from copper sulphides in

The second step is copper flotation from the arsenic separation tail at the air set potential and pH 11 using air to float the copper minerals and produce a low-arsenic high-copper concentrate The low-arsenic high-copper concentrate can go directly to the smelter without paying any penalty Get price

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BULK FLOTATION OF COMPLEX COPPER ORE

The arsenic in the ore is contained in copper-arsenic sulfide minerals such as arsenopyrite and tennanite (Smedley and Kinniburgh 2002) Arsenopyrite is one of the comparatively little studied sulphide minerals in the flotation technology (O'Connor et al 1990) Get price

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NEW SELECTIVE COLECTOR FOR FLOTATION OF SULFIDE

malachite azurite natural copper and natural gold Technical characteristics Flotation tests are carried out in a Denver flotation cell 1500 revolutions/min with a cell capacity of 4 liters for the rough and 2 liters for the scavenge flotation Slurry density is different according to type of Get price

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BENEFICIATION OF ARSENIC BEARING COMPLEX SULPHIDE

Beneficiation of arsenic bearing complex sulphide ore by flotation 207 gation the effect of pH collector dosage the number of flotation stages depressant type and dosage were studied on the selective concentration of Cu Pb and Zn minerals in the ore sample Results and discussions Get price

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Ph In Flotation Antimony High Arsenic Gold

Cyanidation of gold ores containing copper silver lead arsenic and antimony The first sample contained 105 ppm gold with high arsenic and antimony Clay Promoters In Flotation - lakevalleynl ph in flotation antimony high arsenic gold flotation methodfor antimony primary production of antimony is now isolated to a few countries and is Bulk flotation is performed with natural pH on the ore ground toGet price

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copper arsenic flotation selectivity

copper arsenic flotation selectivity – Grinding Mill China copper arsenic flotation selectivity sand washing cum screening machine in coimbatore forest type that occurs in areas such as natural levees abandoned point bars Learn More nickel and copper flotation Effect of calcium and thiosulfate ions on flotation selectivity of nickel–copper ores Get PriceGet price

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MEI Blog Challenges in copper flotation

Sep 10 2011A paper by workers from MMG Rosebery the JKMRC and the University of Queensland will present a review of the literature with regard to the selective removal of the arsenic bearing minerals from copper ores during flotation summarizing the pros and cons of the various options and will recommend a strategy for evaluation while a paper from Japan will also consider the selective flotation of an arsenic rich sulfide copper ore Get price

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A critical review of surface properties and selective

Apr 01 2012Highlights Arsenic is a significant penalty element in base metals production due to its high toxicity No commercial method of floating enargite from copper sulphides has been developed Surface properties and single-mineral and selective flotation of enargite are reviewed Industrial applications require understanding mechanisms of enargite selective flotation Selective collectors for enargite Get price

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arsenic in copper flotation tailings in bangalore

Flotation is a physicochemical process which allows the mineral separation such as copper sulfide minerals and molybdenum from the remaining minerals which form most of the parent rock substrate including contaminants such as arsenic minerals (Bruckard et al 2010) Get price

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Recover Metal from Acid Leach Processing of Arsenic Rich

Arsenic copper and molybdenum were effectively removed from arsenic-bearing flue dust using a three-stage continuous sulfuric acid leach Leach conditions to maximize arsenic and copper extraction while minimizing bismuth extraction were determined 25-wt pct H2SO4 20- to 25-wt pct solids a leach temperature of 55 C and a 30-min residence time Get price

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Flotation separation of copper sulphides from arsenic

The arsenic content of Rosebery copper flotation feed is mainly present as arsenopyrite (FeAsS) containing approximately 46 0% arsenic with the remainder of the arsenic in copper sulphosalts (tennantite (Cu12As4S13)) in a solid solution series with tetrahedrite (Cu12Sb4S13) Tennantite contains approximately 20 3% arsenic Get price

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THE USE OF PULP POTENTIAL CONTROL TO SEPARATE

Under normal circumstances the flotation response of these minerals is generally similar to that of the common copper sulfide and copper-iron sulfide minerals using flotation conditions typical in most sulfide copper flotation circuits making arsenic rejection difficult Get price

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60 Centuries of Copper The Flotation Process

The Flotation Process In the case of copper minerals the particles adhere to this froth which is separated whereas the great bulk of the useless material sinks to the bottom of the tanks By varying the chemical conditions within the cells different results can be obtained thereby making flotation highly selective in skilled hands Get price

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Selective Flotation

Selective Flotation Who would think that Selective Flotation of copper gold zinc or any metal would required that one must be able to feel pain and recognized and/or admit when it hurts Flotation mass-pull is a process that is often misunderstood a learner's mistake made by non-operating types Get price

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Selectivity and power of frothers in copper ore flotation

Selectivity and power of frothers in copper ore flotation 517 The ore was crushed in a jaw crusher to obtain particles smaller than 1 mm in size Prior to each flotation experiment the crushed material was wet ground in a steel ball mill The size distribution of the ore used as the flotation feed is presented in Table 1 Table 1 Get price

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Selective Separation of Cu Zn and As from Solution by

The selective precipitation and flotation of copper zinc and arsenic ions from dilute aqueous solutions were investigated Phase separation was accomplished effectively by the dissolved-air technique for the production of fine gas bubbles and a short-chain xanthate was applied as the collector for copper ions dialkyldithiocarbamate for zinc and ferric sulfate for the pentavalent arsenic Get price

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Arsenic in Complex Orebodies

The selective flotation of enargite from copper sulphides in a complex ore system is discussed in this paper Methodology and Results A complex ore system was selected which had various levels of arsenic as enargite Two ore samples with different arsenic levels HAS (250 ppm) and LAS (100 ppm) were selected to provide a range of arsenic level Get price

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Flotation separation of copper sulphides from arsenic

The arsenic content of Rosebery copper flotation feed is mainly present as arsenopyrite (FeAsS) containing approximately 46 0% arsenic with the remainder of the arsenic in copper sulphosalts (tennantite (CuAsS)) in a solid solution series with tetrahedrite (CuSbS) Tennantite contains approximately 20 3% arsenic Get price

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Flotation separation of copper sulphides from arsenic

The arsenic content of Rosebery copper flotation feed is mainly present as arsenopyrite (FeAsS) containing approximately 46 0% arsenic with the remainder of the arsenic in copper sulphosalts (tennantite (Cu12As4S13)) in a solid solution series with tetrahedrite (Cu12Sb4S13) Tennantite contains approximately 20 3% arsenic Get price

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THE USE OF PULP POTENTIAL CONTROL TO SEPARATE

copper and arsenic minerals floated very strongly and there was no selectivity between copper and arsenic Arsenic separation using pulp potential control If the flotation behavior of tennantite were similar to that of enargite the most likely pulp potential region forGet price

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Selective flotation of enargite from copper sulphides in

A bulk copper-arsenic flotation concentrate is produced at air set potential and pH 11 • The bulk rougher copper-arsenic concentrate then is reground in a closed circuit with a cyclone to become the feed to the arsenic rejection stage • The separation flotation stage has two steps Get price

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APPLICATION OF MODIFIED NANOFIBRILLATED

APPLICATION OF MODIFIED NANOFIBRILLATED CELLULOSE AS A COLLECTOR IN SULPHIDE FLOTATION copper zinc and arsenic for the Panasqueira sulphide ore and the feed grade in copper zinc and iron well depressed and they achieved values of recovery of 35% for zinc and 17% for arsenic The BAC collector selectivity for chalcopyrite (the ability Get price

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flotation copper selective

copper arsenic flotation selectivity amarcord selective flotation of copper minerals from galena the pulp was treated with activated carbon first and than sodium meta bisulphite and caustified starch were added to de press galena where copper was floated by the addition of small amounts of Aero 208 Get price

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TACKLING IMPURITIES IN COPPER CONCENTRATES

2011 Salomon-De- Friedberg et al 2014) However our interest is not limited to arsenic but extends to other impurities found in copper and nickel concentrates as well One considers a "typical" copper concentrate as having about 25+% copper and some minor Get price

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ARSENIC CONTENT IN THE LEAD FLOTATION

Copper ions (if they are present in flotation pulp) activate the flotation of arsenopyrite lowering the amount of xanthate needed for flotation [3 5 8] The aim of the experimental testing the results of which are presented in this paper was to obtain rough lead concen- trate with the low content of arsenic Get price

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Classification of the Major Copper Sulphides

Aug 01 2017The arsenic-signature copper minerals are added to the study since many copper operations encounter arsenic as a penalty element in the saleable concentrate It is shown that the addition of arsenic to the copper and iron sulphides alters the semiconductor and electrochemistry properties and in turn its flotation characteristics Get price

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