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AbstractThe separation of oxide zinc mineral from silicate minerals in smithsonite mineral associated silicate minerals and oxide zinc ore samples was assessed using methyl mercaptan (CH3SH) ethyl mercaptan (C2H5SH) and hexyl mercaptan (C6H13SH HM) as collectors The optimal flotation conditions were defined through Hallimond tube contact angle and batch flotation and the results.
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Conventional flotation scheme is not successful for separation of dolomite from its mixture with apatite Several processing methods utilizing both anionic and cationic collectors have been proposed to solve this problem but they have yet to be tested on a commercial scale.Around 11 Selective flotation of smithsonite is accomplished from oxidised zinc ore with dodecylamine collector at pH 11 when the feed is deslimed prior to bench scale flotation tests Smithsonite recovery exceeding 84 5 with 24 5 zinc content is achieved The optimum flotation efficiency and the optimum flotation time were 50 4 and 9 minutes.
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Amino trimethylene phosphonic acid (ATMP) an eco friendly reagent widely applied in industrial production was employed as a depressant for flotation separation of smithsonite from calcite for the first time Micro flotation test results show that ATMP exhibits selective inhibition effect on calcite flotation Calcite and smithsonite can be well separated in flotation process by applying ATMP.Selective flotation of dolomite from apatite has been achieved by two stage conditioning using sodium oleate as the collector The optimum separation was achieved by conditioning the minerals at pH 10 followed by reconditioning at a pH lower than 4 5 A slightly better.
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Hallimond cell flotation was conducted using pure dolomite sample to determine the effects of various factors including dosages particle size Ca 2+ ions and slimes on the dolomite flotation recovery The results showed that the surfactants can significantly improve dolomite flotation.Request PDF Role of dissolved mineral species in selective flotation of smithsonite from quartz using oleate as collector Quartz is in most cases the major gangue mineral found in the zinc.
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The flotation results indicate SH exhibited selective depression effect on calcite in the presence of sodium oleate achieving the flotation separation of scheelite from calcite.The separation of dolomite from apatite has been recognized as one of the most difficult subjects in mineral processing due to the similarities in their physiochemical properties In this study selective surfactants were used with a fatty acid soap collector to improve the flotation performance of separating dolomite from high magnesium phosphate ores.
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@article{osti_874213 title = {Selective flotation of phosphate minerals with hydroxamate collectors} author = {Miller Jan D and Wang Xuming and Li Minhua} abstractNote = {A method is disclosed for separating phosphate minerals from a mineral mixture particularly from high dolomite containing phosphate ores The method involves conditioning the mineral mixture by contacting in an.The possibility of synthesizing ionic collecting agents of notable characteristics for the selective flotation of lead and zinc ores such as those of formula (I) obtained according to the present invention is quite unforeseeable for those skilled in the art as is evident from the facts mentioned above.
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Role of dissolved mineral species in selective flotation of smithsonite from quartz using oleate as collector By The CMC was a quite adequate depressant without having adverse effect on smithsonite flotation In order to probe the validity of the findings zeta potential and real flotation experiments were also carried out successfully.Carrier flotation is a common technique used to improve flotation recovery of ultrafine ores In this study we used coarse polystyrene as the carrier material to enhance flotation recovery of fine smithsonite (ZnCO3) particles Sodium oleate was used as the collector and played a role in the adhesion of fine smithsonite to polystyrene due to its amphipathic properties.
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Flotation Dolomite Florida Apatite Florida Salt Publisher Gainesville FL Collection UFRDS univ_florida_smathers americana Digitizing sponsor University of Florida George A Smathers Libraries with support from LYRASIS and the Sloan Foundation Contributor University of Florida George A Smathers Libraries Language English.Flotation results showed that NaOL alone had good collecting performance on smithsonite and common gangue mineral dolomite but had poor selectivity By using a BHA NaOL mixed system with a molar ratio of 2 1 the recoveries of smithsonite and dolomite reached approximately 90.
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The direct flotation of zinc oxide ore using anionic collectors or mixed anionic cationic collectors shows poor separation between zinc oxide minerals (such as smithsonite) and other carbonate.The effects of Ca2+ Mg2+ Al3+ and Fe3+ on the flotation behaviors of apatite dolomite and quartz were investigated through a micro flotation test and the influence of calcium ions on the flotation of these minerals was further elucidated by solution chemistry study zeta potential measurement and X ray photoelectron spectroscopy (XPS) analyses.
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Nov 22 2013 Selective flotation of oxide zinc ore was also accomplished by using an HM collector at pH 9 The flotation recovery was 55 without desliming When the initial feed was deslimed before bench scale flotation tests the recovery increased from.Under flotation conditions using anionic fatty acid (Acintol FA 1 tall oil) with varying modifiers—SHMP tetrasodium pyrophosphate (TSPP) and CMC in neutral to alkalinic region (pH 6–12) float dolomite and sink magnesite—Matis et al 1988 suggested that selective separation can be further improved in several flotation stages [15].
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Dolomite was the main gangue The modal analysis showed the Keywords Selective flotation Lead zinc ore Process parameters Characterisation mica cerussite smithsonite quartz garnet rutile magnetite goethite limonite were in minor to trace amounts The ore minerals were widely varying in size.Selective flotation of oxide zinc ore was also accomplished by using an HM collector at pH 9 The flotation recovery was 55 without desliming When the initial feed was deslimed before bench scale flotation tests the recovery increased from 55 to 75 with 22 5 zinc content in the concentrate Whenmethylmercaptan or ethyl mercaptan was used.
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Fig 5 shows the effect of pH on the flotation performance of smithsonite and calcite with 1 10 4 mol dm3 ODA As shown in Fig 5 calcite and smithsonite both have good flotation recovery at a pH range of 7–12 Therefore a suitable depressant must be added when using ODA as collector for the flotation separation of smithsonite and calcite.It was found however that the dissolved ions were detrimental to the flotation separation using sodium oleate as collector From a mixture of francolite and dolomite containing 26 2 P 2 O 5 a phosphate concentrate containing 35 2 P 2 O 5 with a 90 recovery was obtained using 290 g t of the amphoteric collector The rejection of MgO was 81.
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1 The combined use of starch and hydroxyethylated compounds leads to formation of complex adsorption structures at the interfaces exerting an effect on the rate of flotation of apatite calcite and dolomite by carboxylic acids 2 Extractions of minerals in the presence of complexes in individual periods of time pass through a maximum which is not observed when individual compounds (starch.Selective flotation of smithsonite from dolomite by using novel mixed collector system Li WANG 1 2 Guang yan HU 1 2 Wei SUN Sultan Ahmed KHOSO Run qing LIU 1 2 Xiang feng ZHANG 1 School of Minerals Processing and Bioengineering Central South University Changsha 410083 China 2.
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AbstractThe separation of oxide zinc mineral from silicate minerals in smithsonite mineral associated silicate minerals and oxide zinc ore samples was assessed using methyl mercaptan (CH3SH) ethyl mercaptan (C2H5SH) and hexyl mercaptan (C6H13SH HM) as collectors The optimal flotation conditions were defined through Hallimond tube contact angle and batch flotation and the results.The cationic flotation results showed that the maximum recovery of smithsonite could be improved to 92 using 400 g t Armac C and 500 g t sodium sulphide at pH 11 Also the quartz and calcite recoveries reached 98 and 89 respectively at the above mentioned conditions.
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Flotation experiments were carried out in a 2 5 L Denver laboratory flotation cell using a 1000 g ore sample Pre flotation was employed to remove some of the carbonaceous matter through adding diesel oil (120 g t) and methyl isobutyl carbonyl (MIBC 50 g t) as collector and frother respectively Potassium Ethyl Xanthate (PEX) and Na Di alkyl.Salicylaldoxime a benzoin and ortho hydroxybenzoic acid have an activation effect on flotation of calamine 4 Flocculant Dispersant Oxidized lead and zinc ore can be recovered by selective flocculation process especially fines and slime If using the selective flocculation method to separate the ore the recovery rate will be greatly.
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Sulfidization flotation for recovery of lead and zinc from oxide–sulfide ores Transactions of Nonferrous Metals Society of China (15) 1138–1147 18 KIERSZNICKI T MAJEWSKI J J MZYK J 1981 5 Alkylsalicyladdoximes as collectors in flotation of sphalerite smithsonite and dolomite in.Flotation of smithsonite and calcite were analyzed In order to depress calcite sodium hexametaphosphate (SHMP) water glass (WG) carboxymethyl cellulose (CMC) and lignosulfonate calcium (LSC) were used as depressants he flotation separation of smithsonite and calcite was T conducted in the mixed mineral system with a varied weight ratio.
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Effect of Ca selective chelator BAPTA as depressant on flotation separation of magnesite from dolomite Minerals Engineering 2019 144 106050 DOI 10 1016 j mineng 2019 106050 Anuttam Patra Hasan Ali Taner Romain Bordes Krister Holmberg Anna Carin Larsson Selective flotation of calcium minerals using double headed collectors.Sep 20 2013 The separation of oxide zinc mineral from silicate minerals in smithsonite mineral associated silicate minerals and oxide zinc ore samples was assessed using methyl mercaptan (CH 3 SH) ethyl mercaptan (C 2 H 5 SH) and hexyl mercaptan (C 6 H 13 SH HM) as collectors The optimal flotation conditions were defined through Hallimond tube contact angle and batch flotation and the.
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