SALGI
It differs from others described in Sections 5 and 6 of this report in that it uses relatively insoluble iron sulfide instead of highly soluble sodium sulfite or hydrosulfide as its source of sulfide ions for precipitation Descriptions of the Sulfex process are given in References 1 2 and 3arsenic ions from solution by flotation 10 Copper and zinc ions were separated by precipitate flotation as sulfides in batch 22 and continuous flow 12 conditions In this work the removal
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Metal Ions Flotation as Xanthates Thiol reagents such as the xanthates are common collectors in froth flotation of sulfide minerals 15 and have been extensively studied 1 6 Here potassium 0 ethyl dithiocarbonate KEX was used for the dis solved air flotation of several ions Sulfide flotation pulps often contain significant amounts of many transition metal species such as those of copper because of a a deliberate addition of copper sulfate to activate certain value sulfide minerals b release of copper ions from oxide copper minerals or c oxidation of copper sulfide minerals and the concomitant release of
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Thioglycolic acid also leaches traces of metal ions from the mineral surface The concentration of zinc II in solution reflects the extent of leaching that has occurred AB When aqueous solutions of thioglycolic acid are equilibrated with sphalerite a zinc sulfide mineral a large fraction of the thioglycolic acid is either adsorbed on the Activation of quartz by metal ions is a further example of hydroxy complex formation The solubility of quartz is very limited and the only cation from the mineral is silicon Thus quartz activation for flotation by anionic collectors requires metal ions in the pH ranges in which they form hydroxy complex
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Treatment of sulfide mineral flotation concentrates can also be carried out using hydrometallurgy in which process the metal sulfide is dissolved leached into an aqueous solution Some processes involve both smelting and leaching steps This is the case for example in zinc sulfide processingchalcopyrite galena sphalerite pyrite Selective flotation Pb Zn bulk flotation Sulphide minerals are floated by sulphydryl collectors thio componds Adsorption of Sulphydryl Collectors Adsorption of sulphydryl collectors may occur mainly by chemisorption at metal ion sites on a surface and by electrochemical mechanisms
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Sulfide British English sulphide is an inorganic anion of sulfur with the chemical formula S 2− or a compound containing one or more S 2− ions Solutions of sulfide salts are corrosive Sulfide also refers to chemical compounds large families of inorganic and organic compounds eg lead sulfide and dimethyl sulfideRead Metal ion production and transfer between sulphide minerals Minerals Engineering on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips
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In the present investigation flotation was used as a diagnostic to understand the effects of changes to the media during the grinding stage A Base Metal Sulphide BMS ore was ground under media of different shapes and compositions to determine the effect of different rod/ball material on the flotation performance of the oreIntroduction to Mineral Processing Froth Flotation Froth flotation is considered to be the most widely used method for ore beneficiation In ore beneficiation flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer
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Metal ion production and transfer between sulphide minerals Read Metal ion production and transfer between sulphide minerals Minerals Engineering on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertipsTwo kinds of flotation gold recovery methods are slightly greater than 934 but less the conclusion sulfide dissolved in water dissociation of HS and S2 as most metal sulfide solubility product is very small so in Metallurgy vulcanization Sodium may be used as a precipitant solution of some impurity metal ions in particular the removal of heavy
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Heavy metal ion activation of zinc sulphide a General features b Kinetics c Mechanism d The nature of the activation products e Collectorless flotation The solubility of ZnS a The solubility products of heavy metal sulphides b Solubility and hydrolysis equations for zinc sulphide Oxidation of sulphide mineralsmetal ions on galena flotation of Rosh Pinah ore by G Coetzer HS du Preez and R Bredenhann Synopsis During galena flotation of Rosh Pinah milled material metal ions and salts contents of various water resources deionized simulated circulated lead concentrate thickener lead tailing thickener and
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Purchase Fluid Inclusion Effect in Flotation of Sulfide Minerals 1st Edition Print Book ISBN CiteSeerX Document Details Isaac Councill Lee Giles Pradeep Teregowda An approach to environmental sustainability and improved process economy in sulphide minerals production is recycling of process water in flotation of complex sulphide ores although the chemistry of process water may be a critical issue to flotation efficiency The influence of major components of calcium and
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The studied metal cations can activate quartz at a particular pH It can be inferred from solution chemistry and zeta potential measurement that the influence of metal ions on the flotation of different minerals should be attributed to the adsorption of various hydrolysis species on the mineral surfacThioglycolic acid also leaches traces of metal ions from the mineral surface The concentration of zinc II in solution reflects the extent of leaching that has occurred AB When aqueous solutions of thioglycolic acid are equilibrated with sphalerite a zinc sulfide mineral a large fraction of the thioglycolic acid is either adsorbed on the
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Also it was found 45 that the depressing effect mineral flotation pulps originating from the steel grinding of sulphite on chalcopyrite flotation depends on the presence media iron sulphide minerals and non sulphide gangue de of Fe3 ions released from grinding mediaAlso it was found 45 that the depressing effect mineral flotation pulps originating from the steel grinding of sulphite on chalcopyrite flotation depends on the presence media iron sulphide minerals and non sulphide gangue de of Fe3 ions released from grinding media
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Hydrogen sulfide reacts with metal ions to form metal sulfides which are insoluble often dark colored solids Lead II acetate paper is used to detect hydrogen sulfide because it readily converts to lead II sulfide which is black Treating metal sulfides with strong acid often liberates hydrogen sulfide 15 18 The SEG can agglomerate into clumps associated with a few metal ions and ultimately precipitate in water 19 The structural formula of seaweed glue is shown in Figure 1 The application of SEG as a flotation depressant both in the laboratory and in commercial processes has not been reported up to now Figure 1
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Flotation tests were carried out in a D12 Denver flotation laboratory cell in the presence and absence of chitosan and/or sodium cyanide depressant which is commercially used as pyrite depressant in sulfide mineral flotation processHEAVY METAL IONS REMOVAL BY BIOSORPTION FLOTATION ON MYCELIAL WASTES biomass by flotation was experimented since the biosorbent presents a natural flotation tendency After the biosorption stage the suspensions were transferred in a flotation cell and submitted to the OAF process
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