pyrite in zinc ore flotation

pyrite in zinc ore flotation

  • Flotation of Pyrite

    Sodium silicate was somewhat effective in causing a differential or selective flotation of copper, as chalcopyrite from pyrite by keeping pyrite from floating. Sodium hydroxide and sodium sulfide gave, in most cases, a distinct separation of sphalerite from chalcopyrite; i.e., a high copper and low zinc by suppressing the flotation of sphalerite.

  • Galena - Sphalerite Flotation Separation Method

    If a pyrite concentrate is required, this can usually be obtained by sending the tailing of the zinc flotation section direct to a third stage, where the iron sulphides are floated with the addition of 0.05-0.15 lb. per ton of pine oil and 0.1-0.2 lb. of ethyl and/or amyl xanthates, the

  • Flotation experiment research on a polymetallic sulfide ore of

    zinc and pyrite (recovering of gold and silver) from the bulk flotation tailings was used based on the ore characteristics. The concentrate indexes of the grade of copper, lead, and zinc

  • Sequential Copper–Lead–Zinc Flotation

    The advantages of the sequential circuits are that the levels of selectivity can be increased, particularly for copper and lead. With this process, copper was recovered first with MBS depression of lead, zinc and pyrite. Lead was recovered after conditioning, utilizing cyanide as the base depression scheme to control sphalerite and pyrite.

  • Depression of pyrite in the flotation of high pyrite low ...

    In this research work, selective depression of pyrite in the flotation of a low-grade lead–zinc ore containing 31% pyrite was investigated in the absence and presence of Acidithiobacillus ferrooxidans. Pyrite was significantly depressed with these bacteria using the optimum dosage of reagents.

  • Cited by: 17
  • Pyrite Depression - Froth Flotation (Sulphide Oxide ...

    Few scientists tried High Intensity Magnet Separator. HGMS of SLON, LONGI, . You can try bulk flotation of Pyrite and Zinc and then go for magnet separation. This will give two products, Sulphur (Pyrite) and Zinc con. May be Pyrite con may contain both Lead and Zinc in traces recovered in Smelter during Sulphur recovery.

  • Method of floatation of copper-zinc-pyrite ore (versions)

    1. Method of flotation of copper-zinc-pyrite ore, including grinding in an alkaline medium, air conditioning with reagents - collectors and frothers, collective copper-zinc flotation to produce collective concentrate containing copper minerals and natural-activated sphalerite, and tails, characterized in that as the collector used is supplied in the following sequence composition selective ...

  • Dispersion effect on a lead–zinc sulphide ore flotation ...

    This investigation was performed with samples from a lead–zinc sulphide deposit aiming at studying the influence of the dispersion degree of the particles in the pulp on lead and zinc flotation. Samples of ore and also of the minerals sphalerite, galena, pyrite, and dolomite were selected for the experiments.

  • The effect of zinc cyanide on the flotation of gold from ...

    Since this is a pyrite-dominant ore, the flotation recoveries of Fe and S presented in Fig. 1 are indicative of the flotation performance of pyrite. It can be seen that the collector-less flotation of pyrite was poor in the first 3 min flotation without the addition of 3418A prior to flotation with only 2.1% Fe recovery and 2.7% S recovery.

  • Cited by: 3
  • The effect of mode of occurrence of galena and sphalerite ...

    zinc sulphide ores from various sites. Pyrite is the main sulphide gangue mineral in the Rosh Pinah composite sample. Traces of chalcopyrite, gold and silver are found in the ore sample (Figure 1). At the Rosh Pinah plant, the composite feed is processed by selective flotation, in

  • Gold-Pyrite ores

    Natural pH is recommended for gold flotation. Alternatively using soda ash for pH adjustment can reduce gold depression. Where gold is associated with pyrite in base metal ores where iron sulphides are depressed and report to the tailings, a separate tailings pyrite flotation

  • Dispersion effect on a lead–zinc sulphide ore flotation ...

    This investigation was performed with samples from a lead–zinc sulphide deposit aiming at studying the influence of the dispersion degree of the particles in the pulp on lead and zinc flotation. Samples of ore and also of the minerals sphalerite, galena, pyrite, and dolomite were selected for the experiments.

  • The effect of zinc cyanide on the flotation of gold from ...

    Since this is a pyrite-dominant ore, the flotation recoveries of Fe and S presented in Fig. 1 are indicative of the flotation performance of pyrite. It can be seen that the collector-less flotation of pyrite was poor in the first 3 min flotation without the addition of 3418A prior to flotation with only 2.1% Fe recovery and 2.7% S recovery.

  • Depression of pyrite in the flotation of high pyrite low ...

    In this research work, selective depression of pyrite in the flotation of a low-grade lead–zinc ore containing 31% pyrite was investigated in the absence and presence of Acidithiobacillus ferrooxidans. Pyrite was significantly depressed with these bacteria using the optimum dosage of reagents.

  • Flotation experiment research on a polymetallic sulfide ore of

    zinc and pyrite (recovering of gold and silver) from the bulk flotation tailings was used based on the ore characteristics. The concentrate indexes of the grade of copper, lead, and zinc

  • Method of floatation of copper-zinc-pyrite ore (versions)

    1. Method of flotation of copper-zinc-pyrite ore, including grinding in an alkaline medium, air conditioning with reagents - collectors and frothers, collective copper-zinc flotation to produce collective concentrate containing copper minerals and natural-activated sphalerite, and tails, characterized in that as the collector used is supplied in the following sequence composition selective ...

  • Flotation Of Lead And Zinc From Lead Zinc Pyrite Ore ...

    Flotation Of Lead And Zinc From Lead Zinc Pyrite Ore. Ore is increased the most obvious effect of the galvanic oxidation of galena by pyrite is the release into the system of galena oxidation products providing an ample supply of does pyrite affect galena oxidation and subsequent lead otation behaviour ore

  • Flotation of Copper-Lead-Zinc Ores - ResearchGate

    [Show full abstract] flotation, heating the foam product of the third zinc cleaning to 30-40 degree C to intensify the depression of the pyrite, and dezincification of the copper concentrate. The ...

  • (PDF) New collectors for sphalerite flotation

    A series of N-arylhydroxamic acids (31) were synthesized and tested as collectors to float sphalerite from a Canadian copper–zinc ore. The compounds were classified into four types namely, N ...

  • Effect of Water Composition on Flotation of Lead and Zinc ...

    ABSTRACT 533 Effect of Water Composition on Flotation of Lead and Zinc Sulphide Ore Ünzile Yenial*, Gülay Bulut Mineral Processing Engineering Department, Mining Faculty, Istanbul Technical ...

  • USE OF NON-TOXIC DEPRESSANTS IN THE SELECTIVE FLOTATION

    AbstractThis paper reports the results of flotation tests conducted with a copper-lead-zinc sulphide ore. The major sulphide minerals in the ore are chalcopyrite, galena, sphalerite, marmatite and pyrite with corresponding metal amounts of 6.80% Pb, 1.05% Cu and 1.50% Zn, respectively. The ore sample was ground to below 200 ?m and then collective and selective sulphide flotation tests were ...

  • Copper-Lead-Zinc ores - Danafloat

    As described in the lead-zinc ore processing section, zinc sulphate and metabisulphide sphalerite and pyrite depressants, respectively, are typically added to grinding. Then a Cu-Pb bulk concentrate is recovered with xanthate, dithiophosphate and flotation reagent blends.

  • Selective separation of galena and sphalerite from pyrite ...

    In this work, the flotation recovery of sphalerite and pyrite from an old high zinc grade tailing was studied. In particular, the effect of different flotation reagents such as collector ...

  • (PDF) New collectors for sphalerite flotation

    A series of N-arylhydroxamic acids (31) were synthesized and tested as collectors to float sphalerite from a Canadian copper–zinc ore. The compounds were classified into four types namely, N ...

  • Effect of Water Composition on Flotation of Lead and Zinc ...

    ABSTRACT 533 Effect of Water Composition on Flotation of Lead and Zinc Sulphide Ore Ünzile Yenial*, Gülay Bulut Mineral Processing Engineering Department, Mining Faculty, Istanbul Technical ...

  • USE OF NON-TOXIC DEPRESSANTS IN THE SELECTIVE FLOTATION

    AbstractThis paper reports the results of flotation tests conducted with a copper-lead-zinc sulphide ore. The major sulphide minerals in the ore are chalcopyrite, galena, sphalerite, marmatite and pyrite with corresponding metal amounts of 6.80% Pb, 1.05% Cu and 1.50% Zn, respectively. The ore sample was ground to below 200 ?m and then collective and selective sulphide flotation tests were ...

  • Copper-Lead-Zinc ores - Danafloat

    As described in the lead-zinc ore processing section, zinc sulphate and metabisulphide sphalerite and pyrite depressants, respectively, are typically added to grinding. Then a Cu-Pb bulk concentrate is recovered with xanthate, dithiophosphate and flotation reagent blends.

  • Selective separation of galena and sphalerite from pyrite ...

    In this work, the flotation recovery of sphalerite and pyrite from an old high zinc grade tailing was studied. In particular, the effect of different flotation reagents such as collector ...

  • Evaluation of the replacement of NaCN with ...

    We investigated the replacement of NaCN with Acidithiobacillus ferrooxidans, in the flotation of a low-grade lead–zinc ore containing high amounts of pyrite.A. ferrooxidans were adapted to original ore, and its growth curves were monitored before and after adaptation. Because of its characteristics, the addition of original ore caused the bacterial cell count to increase in the culture ...

  • Selective separation of galena and sphalerite from pyrite ...

    pre-flotation, which is a flotation stage prior to the galena flotation, is employed to remove part of the organic carbon. Following the pre-flotation stage, lead and zinc sulfides are floated in separate circuits and during the flotation process pyrite is floated to the concentrates.

  • Pyrite Activation in the Lead-Zinc Tailings Recovery - Xinhai

    Most non-ferrous metals are metal sulfides ores, such as lead-zinc ore, copper sulfide, which often coexist with a large number of pyrites.Pyrite is the main raw material for industrial sulfuric acid, but China is a leading manufacturer and consumer of sulfuric acid, so the comprehensive utilization of pyrite plays an important role in lead-zinc tailings recovery.

  • ROLE OF STARCH AND METABISUPHITE ON PURE PYRITE

    Role of starch and metabisulphite on pure pyrite and pyritic copper ore flotation 41 Mineralogical study also showed that about 50% of ore is formed by pyrite, as a major mineral in the ore. Table 1. Chemical analyses of the samples Compound Pure Pyrite Sample % Pyritic Copper Ore

  • Flotation Of Lead Zinc Ores - Agrigent

    Aero 7261a depressant for copper zinc ores flotation. Copper zinc ores danafloat home copper zinc ores usually chalcopyrite, sphalerite and iron sulphides are present with this type of ore sphalerite is depressed with zinc sulphate addition to the grind with sodium sulphide as an option for enhancing pyrite...

  • THERMOMECHANICAL ASPECT OF SELECTIVE FLOTATION OF ...

    which mutilates flotation process. It is known that zinc cycle of copper–zinc ore flotation uses xanthate modifications that are not selective relative to pyrite. In view of the aforesaid, it is re-quired to design a process flow chart toward higher efficiency of separation of zinc minerals and pyrite in the zinc cycle of flo-tation.

  • Copper Pyrite Flotation Machine - istcompazzanox.it

    Flotation Machine; minerals containing copper and zinc are generally divided into copper-zinc-pyrite, copper-containing pyrite, and copper-sulfur ore. In addition to pyrite, the main metal minerals of copper-zinc ore include chalcopyrite, sphalerite, galena, chalcopyrite, etc. Single flotation copper is a kind of

  • Flotation Behavior of Complex Sulfide Ores in the Presence ...

    Jan 01, 2017  The overarching goal of this work was to test the possibility of replacing sodium cyanide by chitosan polymer as a selective pyrite depressant in the bulk flotation of complex sulfide ore sample containing galena (PbS), chalcopyrite (CuFe[S.sub.2]), sphalerite (ZnS), pyrite (Fe[S.sub.2]), dolomite (CaMg[(C[O.sub.3]).sub.2]), and marcasite (a ...

  • flotation of lead and zinc from lead zinc pyrite ore pdf ...

    flotation of lead and zinc from lead zinc pyrite ore pdf. The Influence of Pyrite on Galena Oxidation and Magotteaux. ore is increased. The most obvious effect of the galvanic oxidation of galena by pyrite is the release into the system of galena oxidation products, providing an ample supply of Does pyrite affect galena oxidation and subsequent lead flotation behaviour? . ore (a known poor ...