molybdenum flotation selectivity

  • Molybdenum Solvay

    Solvay provides collectors and extractants that improve floatability and selectivity for molybdenum. Flotation. Molybdenite is the most common molybdenum mineral. Solvay's AERO® brand collectors/promoters enhance and improve the natural floatability of molybdenite.(PDF) Selective separation of copper-molybdenum sulfides,The flotation tests on mineral mixtures confirmed O-CMC could efficiently depress the molybdenite flotation without dramatically reducing chalcopyrite recovery and selective separation of

  • Flotation separation of copper–molybdenum sulfides using

    Nov 01, 2015· 1. Introduction. The selective separation of copper–molybdenum sulfide minerals by flotation mostly relies on the use of various depressants. Sodium hydrosulfide, sodium sulfide, cyanide and Noke’s reagent (thiophosphorus or thioarsenic compounds) are routinely used as the selective depressants of chalcopyrite (Bulatovic, 2007, Pearse, 2005, Prasad, 1992, Yin et al., 2010), the main Flotation of Molybdenum and Copper Minerals with,The selectivity is calculated by the equation: where CMo and CCu are the percent recoveries of Mo and Cu in the concentrate and JMo and JCu are the percent recoveries of Mo and Cu in the tail. The effect of pH on the flotation recovery of molybdenum and copper

  • EP0229835A1 Process for the selective separation of a

    A method of flotation separation of mineral elements from molybdenum copper sulfide ores includes (a) grinding and grinding the ores to release the minerals; (b) adding, in a primary flotation circuit, a molybdenum collector selected from the group of hydrocarbon oils and a scum agitator; (c) flotation of a primary concentrate (molybdenum) in the primary circuit, in the absence of a copperA novel approach for preferential flotation recovery of,Oct 01, 2012· For those of selective Cu flotation followed by bulk flotation and separation (Fig. 1b), 10 g/t AP and 10 g/t F-111 in the molybdenum circuit, 55 g/t SBX and 15 g/t F-111 in the copper circuit and pH ∼13 maintained by lime in the Cu/Fe separation were used (optimized reagent conditions by the mineral processing plant).

  • Method of flotation of copper molybdenum ores

    The bulk concentrate is treated with oxygen at a temperature of 60-95°C, a pressure of 0.05-1.0 MPa and pH=11,0; selective flotation of copper and molybdenum concentrate emitting molybdenum concentrate with the separation of molybdenum in the foam product is carried out at a pH of 6.0-8.0 (RU, patent No. 2038859, CL B03D 1/02, 1990).Copper-Molybdenum ores Danafloat,Further, because optimum moly flotation pH is at 7-8 while optimum copper selectivity is typically in the 9-11 pH range, use of a moly collector in bulk flotation can improve floatability. Some mines find that the moly collectors can have a negative impact on copper flotation so testing and evaluation must be conducted to find the optimum moly

  • Recover Molycop

    Dithiophosphate Aqueos (MC-208) Has excellent selective properties for copper ore flotation and an excellent collector for gold, silver and copper. Collector Blend (MC-347E) Partially water soluble and widely used in copper sulphide ore flotation, particularly when a secondary mineralization of molybdenum or silver exists.OPTIMIZATION OF FLOTATION PARAMETERS FOR ,molybdenum grade of 2.65% and recovery rate of 79.2%. Fig. 3. d 50 and d 80 sizes of the sample ground as a function of grinding time Fig. 4. Effect of particle size on molybdenum flotation (1 kg/Mg Na 2 SiO 3, 10 kg/Mg Na 2 S,

  • moly column cell flotation how to operate

    Columns are mostly used to produce final grade concentrates because they are capable of high selectivity. Column Flotation SGS. of flotation columns was by Column Flotation Company of Canada on moly cleaning at Noranda’s Les Mines Gaspé (Cienski and Coffin, 1981; Coffin and Miszczak, 1982). Today column flotation EP0229835A1 Process for the selective separation of a,A method of flotation separation of mineral elements from molybdenum copper sulfide ores includes (a) grinding and grinding the ores to release the minerals; (b) adding, in a primary flotation circuit, a molybdenum collector selected from the group of hydrocarbon oils and a scum agitator; (c) flotation of a primary concentrate (molybdenum

  • Molybdenum Wikipedia

    Molybdenum is a chemical element with the symbol Mo and atomic number 42. The name is from Neo-Latin molybdaenum, from Ancient Greek Μόλυβδος molybdos, meaning lead, since its ores were confused with lead ores. Molybdenum Electrolysis Oxidation of Chalcopyrite and Molybdenite for,Sodium hydrogen sulfide (NaHS) is commonly used as a copper depressant in the selective flotation of copper and molybdenum ores. However, the process is facing health and safety issues because

  • OPTIMIZATION OF FLOTATION PARAMETERS FOR

    molybdenum grade of 2.65% and recovery rate of 79.2%. Fig. 3. d 50 and d 80 sizes of the sample ground as a function of grinding time Fig. 4. Effect of particle size on molybdenum flotation (1 kg/Mg Method of flotation of copper molybdenum ores,The bulk concentrate is treated with oxygen at a temperature of 60-95°C, a pressure of 0.05-1.0 MPa and pH=11,0; selective flotation of copper and molybdenum concentrate emitting molybdenum concentrate with the separation of molybdenum

  • The Complete Collection of Copper Beneficiation Reagents

    As the highly selective collector, it has very low solubility in water and high activity for flotation of copper, zinc, molybdenum and other sulfide ores, as well as precipitated copper, segregate copper, etc. It's often used in combination with water-soluble collectors to increase the efficacy, reduce dosage and improve selectivity.Molybdenite flotation from copper/molybdenum concentrates,Typically, rougher molybdenite flotation and recovery from bulk copper/molybdenum concentrates involves the use of alkalisulfides, Nokes reagents, cyanides, oxidants, and/or thermal treatment to depress copper sulfide minerals. The bulk copper/molybdenum feed generally varies from 0.2% Mo to 1.0% Mo, and with traditional reagents the single-stage rougher flotation

  • FLOATATION REAGENTS LinkedIn SlideShare

    Mar 02, 2014· In molybdenum flotation process, it can not only depress lead, zinc, iron, copper and other metal impurity, but also has good effect to decrease silicon, sulphur and other non-metal Preconcentration of Molybdenum from a Low-grade Primary ,Jan 05, 2012· flotation selectivity improved when the pulp pH was in the range of 9.0 to 10. In this range the float products analysed about 1.0% Mo with nearly 85% recovery. The pattern of selectivity

  • Study of the Effect of Sodium Sulfide as a Selective

    Two kinds of collectors, sodium butyl xanthate and kerosene, and a depressor, sodium sulfide, were used in this research. The study applied flotation tests, pulp potential measurements, contact angle Enrichment of Molybdenum and Fluorite by Flotation of,phase were enriched with high yield by selective flotation of concentrate obtained from the concentrate. On the other hand, the most of Pb and Zn remained in tailing. In order to gain molybdenum, the

  • dispersants for copper molybdenum ores flotation

    Flotation separation of copper molybdenum sulfides using . Request PDF on ResearchGate On Nov 1, 2015, Mingyang Li and others published Flotation separation of copper molybdenum sulfides using chitosan as a selective depressant. Learn More. The effect of biopolymer dispersants on copper flotation .Method of flotation of copper molybdenum ores,The bulk concentrate is treated with oxygen at a temperature of 60-95°C, a pressure of 0.05-1.0 MPa and pH=11,0; selective flotation of copper and molybdenum concentrate emitting molybdenum concentrate with the separation of molybdenum

  • Minerals Free Full-Text The Effect of Seaweed Glue in

    Flotation separation of chalcopyrite from molybdenite was studied using seaweed glue (SEG) as a depressant. Flotation process and mechanism were examined by response surface methodology, flotation Study on Flotation Separation Experiment of Molybdenite,The flotation process of molybdenum ore from Liaoning in China with a new collector DMC is investigated. The results show that the collector DMC has stronger collecting power and better selectivity for molybdenite. Compared with traditional kerosene and xanthate flotation

  • WO2013169141A1 Method and apparatus for separation of

    A method and an apparatus for the separation of the mineral components of a pyrite containing copper- molybdenum ore by flotation. The method comprises grinding the ore in the presence of soda ash in an open circuit to produce an aqueous ore slurry; subjecting the slurry to a collective flash flotation Enrichment of Molybdenum and Fluorite by Flotation of,The molybdenum and fluorite were obtained in different phases with the flotation of fluorite ore containing molybdenum obtained from Karaamagaradere-Keban-Elazig district in Turkey. It has been found that the original ore contains 1.08 % Mo, 0.05 %Cu, 1.20 % Pb, 1.12 % Zn and 12.0 % F. It was determined that molybdenum

  • Preconcentration of Molybdenum from a Low-grade Primary

    Jan 05, 2012· Results of the flotation tests are given in Figure 2. At insitu pH, the flotation response was indiscriminate, both molybdenum and other gangue minerals reported in the float resulting float Mo assay of 0.38%. The flotation selectivity Flotation of Copper Sulfide Ores PDF Free Download,The floatability of molybdenum during copper flotation also depends on many factors, including type of collector, type of frother, flotation pH and type of hydrocarbon oil used. During the flotation of copper molybdenum ores, fuel oil or kerosene is added to the grinding to enhance molybdenum

  • O-Isopropyl-N-Ethyl Thionocarbamate(Z-200) CNFREE

    Used as the collector for the flotation of non-ferrous metal mineral which need strong collector but no selectivity. It is a good collector for the flotation of oxidized sulfide ore or copper oxide and zinc Effects of pH and pulp potential on selective separation,proposed that an appropriate pulp potential in selective flotation of Mo from Cu-MO concentrate should be lower than -400mV [8, 11, 16]. Therefore, Na 2 S addition was made in a stepwise procedure during the flotation experiments, including the addition in the flotation

  • Study of the Effect of Sodium Sulfide as a Selective

    Two kinds of collectors, sodium butyl xanthate and kerosene, and a depressor, sodium sulfide, were used in this research. The study applied flotation tests, pulp potential measurements, contact angle FLOATATION REAGENTS LinkedIn SlideShare,Mar 02, 2014· In molybdenum flotation process, it can not only depress lead, zinc, iron, copper and other metal impurity, but also has good effect to decrease silicon, sulphur and other non-metal

  • Preconcentration of Molybdenum from a Low-grade Primary

    Jan 05, 2012· flotation selectivity improved when the pulp pH was in the range of 9.0 to 10. In this range the float products analysed about 1.0% Mo with nearly 85% recovery. The pattern of selectivity Modified reagent mode in porphyry copper-molybdenum ore,Test data on the selective reagent modes at bulk flotation cycle and modified carboxymethylcellulose (CMC) at a selection cycle for the bulk copper-molybdenum concentrate. The selected reagent mode at a bulk flotation cycle with industrial kerosene and Beraflot as collectors and OPSB as a frother made it possible to recover 87 % of copper and 82 % of molybdenum