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US4663279A   Method of beneficiation of complex sulfide ores

US4663279A Method of beneficiation of complex sulfide ores

 · In copper-gold flotation plants, pyrite which is depressed in copper flotation is often floated subsequently with the addition of sodium sulfide Na 2 S to

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  • Flotation Study of an Oxy-sulfur Mixed Copper ... - IOPscience

    The technological mineralogy and benefication research of an oxy- mixed ore were carried out. The test contents included: grinding fineness, 

  • Data-Driven Approximated Optimal Control of Sulfur Flotation

    process is a typical industry process with complex dynamics. ... how to the model structural information in the ADP-based control design, are ... The volume and pulp volume are then subdivided in the liquid and air 

  • Role of Sodium Sulfide - Copper Lead & Zinc Ore Flotation

    Oct 11, 2018 — Other forms such as polysulfides, polythionates, and thiosulfate also occur in the natural environment but are considered 

  • Sulfide Mineral - an overview | ScienceDirect Topics

    Since most of the contained in the concentrate is emitted from ... sulfide minerals require the of acid and an oxidizing agent to break 

  • Flotation of a copper sulphide ore from Okiep using 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


    represents the processing of slag by . Keywords: flash smelting, slag, recycling, , RTB Bor Introduction RTB Bor Rudarsko-topioničarski basen Bor, as an integrated mining and metallurgy company, is located in Bor, Serbia. A century ago the

  • Application of Froth Flotation Technique to Reduce Sulfur

    by the of particle size of 180um, there would be a better chance to reduce ash contents from coal and also to increase volatile matters. In the same series of the experiments as shown in Table IV, results also show that by the of 180um, the contents decreased from 4.08 to 3.14 as shown in Fig. 5. 4.40% 4.25% 4.08%4% 3.63% 3.79% 0%

  • Optimal control of sulphur flotation process based on machine

    The optimal control of process is difficult due to the unavailability of ... Vallebuona G.Dynamic simulator of a rougher circuit for a sulphide ore ... Journal of optimization theory and , 60 1 1989, pp

  • Developments in Selective Flotation of Complex Copper-Lead

    dioxide has been successfully used as a depressant for galena and sphalerite in selective of complex fine-grained sulphide ores. Dosage of the gas demands care and that is why it is not used as often as it could be

  • Desulfurization of the Old Tailings at the Au-Ag-Cu Tiouit Mine

    Jun 30, 2019 — has previously been used to recover , Co, and other metals from ... For example, tailings could be to in products such as ... 0.06–1.50 wt % , mostly in the sulfide minerals pyrite, pyrrhotite, and 

  • Effect of sulfur dioxide on flotation of chalcopyrite | Request PDF

    Oct 22, 2020 — The –S-rich layer reacts with the collector more readily than the original chalcopyrite or the iron-covered surface. ... These results indicate that improved may be obtained if treatment with dioxide precedes collector addition

  • Copper Flotation - Mineral Processing & Metallurgy

    Metallurgical ContentA FlowsheetCOPPER MININGCRUSHING ORECOPPER ORE STORAGEGRINDING ORECOPPER CIRCUITCOPPER THICKENING AND FILTERINGPROCESS CONTROLSCopper Process SummaryFlotation of Ores Although basic porphyry and metallurgy has remained virtually the same for many years, the

  • Froth flotation - Wikipedia

    Froth flotation cells to concentrate copper and nickel sulfide minerals, Falconbridge, Ontario. Froth flotation is a process for separating minerals from gangue by taking advantage of differences in

  • Sodium Hydrosulfide NaSH-An Alternative to Sulfur

    The process feeds the Cu Sulfide concentrate produced through and applies a reverse circuit to separate the Moly sulfide from sulfides. In this case, the MoS floats and the CuS is depressed in a bank of cells. The control devise is also an ORP meter typically controlled at between -450 mv and -500 mv

  • sodium sulfide usage in the flotation for ore dressing

     · Elemental generated wrapped in mineral surface making it easy to activate. 313 sulfide minerals as gold and silver as gold ore agents inducing non- collector takes advantage of electrochemical principles and silver sulfide mineral surfaces and therefore no difference in the electron collector has a higher

  • Mechanochemical sulfidization of a mixed oxide-sulphide

    Mechanochemical sulfidization by co-grinding with was developed for treatment ... owing to its excellent chemical properties and wide range

  • CA2945354A1 - Depression of copper and iron sulfides in

    Typically, molybdenite and recovery from bulk molybdenum ... point-of- , where ingredients to manufacture the polysulfides include and 

  • Experimental work in the use of sulfur dioxide in the

    Attempts to condition cyanide tailing pulps for * prior to the of dioxideP were not successful and the of .dioxlde solved difficult metallurgical and economic problems at this pi ant Q . In the original considera­ tion of the dual treatment by and cyanidation at

  • Effect of pyrite content of feed and configuration of locked

    In the case of , maximum recovery can be achieved at the intermediate ... Consequently, most circuits processing complex sulfide ores, ... in further smelting process as well as increase in emission

  • Sulphide Flotation - an overview | ScienceDirect Topics

    Many –gold concentrators have a combination of flash and gravity ... Ca/Pb, PbOH/Pb and oxy- species SO3/S compared top articles in the tail. ... A great number of base metal sulphide plants saline water

  • Influence of sulfur-containing ions on selective flotation

    Correction of the ionic composition of the pulp should be achieved by adding a modifier before the , to give the optimum thiosulfate: sulfate ratio, i.e., 0.5–0.75. 3. Efficient modifiers for chalcopyrite-cubanite-pyrrhotite ores are sodium sulfite and potassium bisulfite, the consumption of which depends on the seasonal

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