The development and results of electrochemical studies in the field of sulfide flotation are discussed and generalized. The role of oxygen and redox transitions on the sulfide surface in theics of sorption of thiol collectors and the formation of hydrophobic layer on the surface of sulfide minerals is shown.
01/10/2012· Abstract The present study investigates the application of thiol collectors and their mixtures on the flotation of copper silver gold minerals from a new copper mine located in northern Norway. The copper minerals chalcopyrite, chalcocite, and bornite are uniformly distributed in all size ranges in the ore sample under study.
Sulfide Minerals Thiols In The Mineral Flotation Mill And Crusher Plant. Thiols can be converted to sulfides through the use of oxidants. Sensitivity To Sulfur and Sulfide Minerals. Although sulfur is an element that exists in the human body and is essential for health some people are sensitive to it. If you are sensitive to sulfur you may also
Micro flotation results show that xanthan gum severely depresses talc flotation but barely affects chalcopyrite flotation at pH 8. In artificially mixed minerals flotation, a concentrate containing 31.87 Cu can be obtained at 90.03 Cu recovery from a feed of 16.94 Cu, indicating xanthan gum as a selective depressant. The effect of xanthan gum was also verified by the real ore flotation
30/06/1998· Any thiol collector known in the art for flotation processing of sulphide minerals may be utilized in the invention, such as xanthate, dithiophosphate, dialkyl thionocarbamate, mercaptan, mercaptobenzothiazole, or thiocarbanilide.
Presented at Minerals Engineering Conference Precious Metals 15, Falmouth. Kloppers, L., Maree, W., Hangone, G. and Oyekola, O. 2016. Froth flotation of a Merensky Reef platinum bearing ore using mixtures of SIBX with a dithiophosphate and a dithiocarbamate, Minerals Engineering 87 5458. Kloppers, L., Maree, W., Hangone, G. and Oyekola, O. 2015. The effects of using mixtures of SIBX
The basic condition necessary for flotation is hydrophobicity of the surface of the mineral to be floated. For sulphides, this condition usually requires treatment with a collector solution.
Flotation of a copper sulphide ore from Okiep using thiol The recovery of oxide copper minerals fromplex The objective of this study was to investigate the floatability ofplex Kansanshi mixed copper ore with a special focus on the sulphidisation process.
The Pennwalt Corporation began studies of a newly developed flotation reagent, normal dodecyl mercaptan, as a collector for sulfide minerals. Dodecyl mercaptan, a long chained collector from the class n alkyl thiols, ismercially available from the Pennwalt Corporation under the trade name Pennfloat3.mercial reagent is a mixture of n dodecyl mercaptan, the primary constituent
30/06/1998· Any thiol collector known in the art for flotation processing of sulphide minerals may be utilized in the invention, such as xanthate, dithiophosphate, dialkyl thionocarbamate, mercaptan, mercaptobenzothiazole, or thiocarbanilide.
thiols in the mineralflotation mill and flotaton slag plant PDF Flotation of iron ore processing plant tailings . Studies of the Mechanism of Rock Mineral Flotation at Clarabelle Mill 4.1 INTRODUCTION At the Clarabelle mill, significant amounts of rock minerals float inadvertently during nickel and copper sulfide flotation, causing poor concentrate grades. It is known that the rock minerals
01/09/2013· Thiol collector mixturesmonly used in the flotation of base metal sulphides and platinum bearing ores. There are synergistic benefits claimed for these collector mixtures, with mixtures lowering total dosage requirements, improving coarse particle recovery and the rate of flotation.
01/10/2012· Abstract The present study investigates the application of thiol collectors and their mixtures on the flotation of copper silver gold minerals from a new copper mine located in northern Norway. The copper minerals chalcopyrite, chalcocite, and bornite are uniformly distributed in all size ranges in the ore sample under study.
Flotation with thiol collectors is interpreted in terms of a mixed poten tial model in which the process leading to hydrophobicity is the anodic oxidation of the collector at the mineral surface and this is driven by the cathodic reduc tion of oxygen. Electrochemical studies have identified the products of anodic oxidation as chemisorbed collector, metalpounds, and
Both minerals were chosen because they have been widely studied in sulphide flotation, and to determine whether flotation results with mixtures were mineral specific. Reference: Copy to Clipboard. Castelyn, D. 2012. The effect of mixing thiol collectors in the flotation of pure sulphide ores. University of Cape Town. Castelyn, D. G. 2012. The effect of mixing thiol collectors in the
Electrochemical investigations of the flotation of sulphide minerals are re viewed. Flotation with thiol collectors is interpreted in terms of a mixed poten tial model in which the process leading to hydrophobicity is the anodic oxidation of the collector at the mineral surface and this is driven by the cathodic reduc tion of oxygen.
Flotation of a copper sulphide ore from Okiep using thiol. Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON REFEREED PAPER MARCH 2005 201 Figure 1The final cumulative copper recovery vs collector dosage obtained with C2 X, di C2 DTP and di C2 DTC in the flotation
01/10/2012· Abstract The present study investigates the application of thiol collectors and their mixtures on the flotation of copper silver gold minerals from a new copper mine located in northern Norway. The copper minerals chalcopyrite, chalcocite, and bornite are uniformly distributed in all size ranges in the ore sample under study.
A method for the flotation processing of mineral ores is disclosed. At least one thiol collector is introduced into the flotation process by atomization. In a preferred aspect of the invention, the thiol collector is provided as a mixture of the thiol and corresponding oxidized thiol dithiol.
Mixtures of collectors are widely used in sulfide and platinum group mineral PGM flotation, and a range of performance benefits have been reported for many different systems. An increase in paymetal recovery and grade as well as increased rates of recovery at lower collector dosages has been observed when single collectors are replaced with multi collector suites. These benefits have been
The flotation of pyrite using mixtures of dithiocarbamates and other thiol collectors Published on May 1, 1994 in Minerals Engineering 3.315 · DOI : 10.1016/0892 68759490099 X Copy DOI
Flotation of a copper sulphide ore from Okiep using thiol. Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON REFEREED PAPER MARCH 2005 201 Figure 1The final cumulative copper recovery vs collector dosage obtained with C2 X, di C2 DTP and di C2 DTC in the flotation
electron affinity for sulphide minerals and are sulphur donors, thus they are preferred collectors for the froth flotation of the sulphide mineral ores. The xanthates are the mostly used class of thiol collectors Adkins Pearse, 1992. This is primarily due to their availability and
Flotation of a copper sulphide ore from Okiep using thiol The recovery of oxide copper minerals fromplex The objective of this study was to investigate the floatability ofplex Kansanshi mixed copper ore with a special focus on the sulphidisation process.
In addition to the above, major mechanisms considered for sulfides flotation using thiols have included adsorp tion of their neutral acids, precipitation of metal thio lates and adsorption of thiolates by ion exchange36
Flotation Practice in Nickel Sul\de Deposits Nickel sulRde minerals such as pentlandite can, in general, be separated from their gangue by Sotation using a thiol group of collectors like xanthates and alkyl dithiophosphates in the presence of variety of activators, depressants and dispersants.
A method for the flotation processing of mineral ores is disclosed. At least one thiol collector is introduced into the flotation process by atomization. In a preferred aspect of the invention, the thiol collector is provided as a mixture of the thiol and corresponding oxidized thiol dithiol.
Thiols In The Flotation Of Minerals. 2017 4 42 flotation behaviour of the platinum group minerals 25 21latinum group element recovery from the oxidized msz of the 29 great dyke zimbabwe 2 chemical stability of michenerite 30 2 interaction of thiols with metals 33 3 research problem and objectives 36 4.
Both minerals were chosen because they have been widely studied in sulphide flotation, and to determine whether flotation results with mixtures were mineral specific. Reference: Copy to Clipboard. Castelyn, D. 2012. The effect of mixing thiol collectors in the flotation of pure sulphide ores. University of Cape Town. Castelyn, D. G. 2012. The effect of mixing thiol collectors in the
Thiol collectors are used in the froth flotation of copper sulphide ores. The xanthates, dithio phosphates and dithiocarbamates are classes of thiol collectors that each form different surface products on different copper sulphide minerals.
A number of different species can be formed by the interaction of thiols with metals and sulfides, the identity of the adsorbate depending on the particular thiol and mineral, the adsorption conditions, and the extent of reaction. This review focuses on the chemisorbed species formed in these systems.
30/06/1998· Any thiol collector known in the art for flotation processing of sulphide minerals may be utilized in the invention, such as xanthate, dithiophosphate, dialkyl thionocarbamate, mercaptan, mercaptobenzothiazole, or thiocarbanilide.
The development and results of electrochemical studies in the field of sulfide flotation are discussed and generalized. The role of oxygen and redox transitions on the sulfide surface in theics of sorption of thiol collectors and the formation of hydrophobic layer on the surface of sulfide minerals is shown.
thiols in the mineralflotation mill and flotaton slag plant PDF Flotation of iron ore processing plant tailings . Studies of the Mechanism of Rock Mineral Flotation at Clarabelle Mill 4.1 INTRODUCTION At the Clarabelle mill, significant amounts of rock minerals float inadvertently during nickel and copper sulfide flotation, causing poor concentrate grades. It is known that the rock minerals
Danafloat 245 is an aqueous solution of dialkyl dithiophosphate. Danafloat 245 has practically no frothing characteristics. It is fastpared to other thiol collectors more selective in the flotation of copper sulphides in the presence of zinc and of iron sulphides and
Thiols In The Flotation Of Minerals. 2017 4 42 flotation behaviour of the platinum group minerals 25 21latinum group element recovery from the oxidized msz of the 29 great dyke zimbabwe 2 chemical stability of michenerite 30 2 interaction of thiols with metals 33 3 research problem and objectives 36 4. Online Message. If you are interested in our products, or what we can do to help you, you
The mechanism whereby thiol collectors adsorb onto a mineral surface has been widely studied. Most of these studies examine the mineral surface at equilibrium state and, often, well above
Normally, selective flotation of minerals is achieved using collectors, of which thiol collectors are the most important. The reaction between collector and mineral is believed to be electrochemical in nature, involving the transfer of electrons between the solid sulphide mineral and liquid water phases.
Xanthate, as the flotation collector with strong collection effect, is mainly used to enhance the hydrophobicity of the mineral surface to meet the requirements of flotation.Xanthatemonly used in the flotation process of sulfide minerals. Xanthate isbination of alcohol, sodium hydroxide and carbon dioxide, which is an anionic collector. . It is light yellow, soluble in water and
Both minerals were chosen because they have been widely studied in sulphide flotation, and to determine whether flotation results with mixtures were mineral specific. Reference: Copy to Clipboard. Castelyn, D. 2012. The effect of mixing thiol collectors in the flotation of pure sulphide ores. University of Cape Town. Castelyn, D. G. 2012. The effect of mixing thiol collectors in the