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Activation of Sphalerite by Ammoniacal Copper Solution in

View at Publisher 183 View at Google Scholar 183 View at ScopusA P Chandra and A R Gerson A review of the fundamental studies of the copper activation mechanisms for selective flotation of the sulfide minerals sphalerite and pyrite Advances in and Interface Science vol 145

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US5171428A Flotation separation of arsenopyrite from

Arsenopyrite is separated from a mixture with pyrite by contacting the mixture with a sulfitic agent providing HSO 3 ions at elevated temperature and pH below about 8 for a period sufficient to impart a selective depression property to the arsenopyrite On addition of a collector the pyrite is rendered floatable enabling froth flotation to achieve a concentrate rich in pyrite and tailings

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Flotation 19 mineng

2019113 ensp 0183 ensp09 30 5 butylthio 1 3 4thiadiazole2thiol used as the selective collector for improved flotation separation of galena and sphalerite from pyrite Wanjia Zhang Jian Cao Wei Sun Yuehua Hu and Zhiyong Gao Central South University China

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Chapter 7 Depression of sphalerite with cyanide and zinc

20141210 ensp 0183 enspChapter 7 Depression of sphalerite with cyanide and zinc sulphate 102 Chapter 7 Depression of sphalerite with cyanide and zinc sulphate 7 1 Introduction Cyanide is the only depressant currently used at the Rosh Pinah Mine to depress sphalerite and pyrite in the lead flotation circuit As explained in Chapter 2 cyanide

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The Depression of Sphalerite during Carbon Preflotation

2017220 ensp 0183 enspsphalerite surface as a mechanism of sphalerite recovery during lead flotation was not significant at the Century Mine concentrator b the recovery of sphalerite during the carbon preflotation was predominantly due to a bulk flotation action and entrainment in the froth c composite particle recovery was a significant

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ROLE OF STARCH AND METABISUPHITE ON PURE PYRITE

2011819 ensp 0183 enspRole of starch and metabisulphite on pure pyrite and pyritic copper ore flotation 43 occurred with 1 7 mg dm3 while 21 depression occurred with the same dosages of starch at pH 6 5 where pyrite flotation is expected to be weak at pH 10

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Complex sulphide ore processing with pyrite flotation by

Pyrite flotation in air and nitrogen Tests on the two ores showed that nitrogen can under certain conditions promote the flotation of pyrite Figs 1 and 2 illustrate this with recovery vs flotation residence time for Brunswick Mining ore Fig 3 shows the results on ore from Mattabi

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Microbially induced flotation and flocculation of pyrite

Jul 15 2004 · Microbially induced flotation and flocculation of pyrite and sphalerite Patra P 1 Natarajan KA Author information 1 Department of Metallurgy

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PDF Floc flotation of galena and sphalerite fines

Floc flotation of the Rey de Plata ore Floc flotation of the Rey de Plata ore was carried out by following the procedure shown in Figure 2 The head ore was first ground in a ball mill with zinc sulfate sodium sulfite and sodium cyanide used to depress sphalerite and pyrite

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Sphalerite Wikipedia

2019111 ensp 0183 enspSphalerite Zn Fe S is a mineral that is the chief ore of zinc It consists largely of zinc sulfide in crystalline form but almost always contains variable iron When iron content is high it is an opaque black variety marmatite It is usually found in association with galena pyrite and other sulfides along with calcite dolomite and

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THERMOMECHANICAL ASPECT OF SELECTIVE

2016110 ensp 0183 enspsphalerite and pyrite for selective flotation with a thermomechanical treatment package including attrition Under conditions being analogues to flotation effect of attrition on the surface of sphalerite and pyrite has been studied with infrared spectroscopy

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depressant for pyrite FeS 2 and can be used to deactivate

depressant for pyrite FeS 2 and can be used to deactivate sphalerite that has been activated by copper ions in solution Fuerstenau et al 1985 Figure 12 Effect of cyanide depressant on flotation of minerals as a function of pH It is interesting to note that flotation of galena PbS is unaffected by the presence of cyanide

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Recovery of sphalerite from a high zinc grade tailing

In this work the flotation recovery of sphalerite and pyrite from an old high zinc grade tailing was studied In particular the effect of different flotation reagents such as collector

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Flotation of sphalerite and pyrite in the presence of

Read quotFlotation of sphalerite and pyrite in the presence of sodium sulfite International Journal of Mineral Processing quot on DeepDyve the largest online rental service for scholarly research with thousands of academic publiions available at your fingertips

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Modelling of pyrite depression process by lime in copper

201979 ensp 0183 enspin zinc flotation circuits at Zaryanovskaya and Belouzovskaya plants of polymetallic ores processing have proved its reliability too Values of logK d for complete depression of iron sulphides represented mainly by pyrite in both cases made 12 3 and value of logK f answering their complete flotation 15 3 Figure 4 a

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FROTH FLOTATION RECENT TRENDS Flotation of

2011121 ensp 0183 enspFROTH FLOTATION RECENT TRENDS IIME JAMSHEDPUR 1998 pp 1841 Flotation of Sulphide Ores HZL Experience sphalerite pyrite as major sulphide and chalcopyrite pyrrhotite as minor sulphide minerals and at times association of precious mineral of gold and silver also Some oxide minerals may be associated with

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Lead Zinc ores

The established lead zinc ore flotation processing scheme is to add zinc sulphate ZnSO4 to the grind to control metal ion activation sphalerite depression Often metabisulphide or other sulphidation chemicals are added with the zinc sulphate for iron sulphide mineral depression

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Flotation of Pyrite Metallurgist Mineral Processing

Sodium silicate was somewhat effective in causing a differential or selective flotation of copper as chalcopyrite from pyrite by keeping pyrite from floating Sodium hydroxide and sodium sulfide gave in most cases a distinct separation of sphalerite from chalcopyrite i e a high copper and low zinc by suppressing the flotation of sphalerite

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Bubble Attachment and Amyl Xanthate Adsorption to

Sphalerite is not the only sulphide mineral whose flotation behaviour can be affected by the presence of Cu ions in solution The possibility of inadvertent Cu activation of pyrite and its undesirable flotation is one factor accounting for the effective separation of sphalerite from pyrite

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ration Process of Chalcopyrite Galenite Sphalerite

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Flotation of sphalerite and pyrite in the DeepDyve

Jun 01 2001 · Flotation of sphalerite and pyrite in the presence of sodium sulfite Flotation of sphalerite and pyrite in the presence of sodium sulfite Shen W Z Fornasiero D Ralston J 2001 06 01 00 00 00 Sodium sulfite was used to improve the separation of copper activated sphalerite from pyrite in mildly alkaline pH conditions This improved separation was mainly the result of the much larger

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pyrite pyrite

63 Three pure minerals i e calcite diaspora and pyrite are adopted for investigating the flotation properties of the synthesized reagents which indie that all the synthesized reagents behave as depressants in the flotation process

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Developing a Bulk Circuit Suitable for Chalcopyrite Pyrite

2019109 ensp 0183 enspDeveloping a Bulk Circuit Suitable for ChalcopyritePyrite Ores with Elevated Pyrite Content in CopperGold Ore Treatment Chris Akop B Eng Mineral Processing A thesis submitted for the degree of Master of Philosophy at The University of Queensland in 2013 Sustainable Mineral Institute

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Sphalerite scientific net

Although EDS analysis and Raman spectrum demonstrated the potassium jarosite formation on the pyrite surface during bioleaching the formation of jarosite layer did not occur on the sphalerite surfaces during bioleaching On the other hand a sulfur layer formation on the sphalerite surface was confirmed by mentioned characterization methods

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Study of Flotation Parameters for Copper Recovery from

2017722 ensp 0183 enspKeywords Refractory Copperpyrite Ores Flotation Tennantite Arsenic Recovery 1 Introduction The treatment processes for the beneficiation of copperpyrite ores consisting of tennantitetetrahedrite series minerals along with chalcopyrite pyrite and sphalerite are generally complex Tetrahedritetennantite minerals

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Pyrite Oxidation Mechanism by Oxygen in Aqueous

2019526 ensp 0183 enspsphalerite ZnS chalcopyrite CuFeS 2 and galena PbS 1 2 Pyrite is also an undesired inorganic constituent present in coal Flotation techniques have been developed to separate pyrite from the other valuable minerals 3 The pyrite surface has also been suggested to play a central hole in the origin of life acting

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FROTH FLOTATION RECENT TRENDS Flotation of Sulphide

various practical aspects of sulphide ore flotation technologies DISTINGUISHED FEATURES OF SULPHIDE MINERALS Some of the important sulphide minerals are Galena PbS Sphalerite ZnS Chalcocite Cu2S Covelite CuS Chalcopyrite CuFeS2 Pyrite FeS2 Molybdenite MoS etc Distinguished features of these minerals are 1

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