Pyrite Flotation Depressants

Sucessful Case

Read More
  • Pyrite Depressant Froth Flotation (Sulphide & Oxide

    2022-3-17 · Of course, there are other depressants for pyrite (more selective). The world of the flotation reagents has changed. Now there are a lot of good new reagents on a commercial scale. Aeration The surface of the pyrite oxidizes rapidly and it floated worse. At the same time at a short aeration of the pulp extraction of copper increases.The Development of Research on the Pyrite Flotation,2020-2-22 · Pyrite is widely associated with chalcopyrite, sphalerite, galena and other minerals. The pyrite is easily subjected to mix into other concentrate products, resulting in a decrease in concentrate quality. This is because the pyrite has good natural floatability, and it also can be activated by copper and lead ions. Therefore, it is necessary to use depressant to selectively

  • Pyrite depressant useful in floation separation

    1999-1-5 · The present invention relates to a process for separating pyrite from sulfide ores and coal during flotation separation which comprises the depressing of pyrite with from about 0.05 to 0.75 kilograms per ton of concentrate solids, using a pyrite depressant compounds selected from the group consisting of R1--S (CH 2 ') n PO (OH) 2 (I). whereThe depression of pyrite in selective flotation by,2016-10-1 · Since dixanthogen is the main species responsible for pyrite flotation, any reagents that are more reducing than the X-/X 2 couple are supposed to act as pyrite depressants by preventing oxidation of xanthate (Fuerstenau et al., 1985). The reducing agents, sulfide/sulfite ions, are readily oxidized following Eqs.

  • Pyrite Depression in Copper Flotation

    2015-10-8 · The Pyrite Depression in a Copper Only Flotation circuit is simple enough. If your froth flotation system only tries to recover chalcopyrite-copper, The depression of pyrite in selective flotation by,Introduction. Pyrite (FeS 2, iron disulfide), is the most abundant sulfide mineral and commonly associated with valuable minerals such as sphalerite, chalcopyrite, galena, gold as well as coal (Wang and Forssberg, 1991, Wang, 1995, Dimitrijevic et al., 1996, Jiang et al., 1998).Pyrite has very low economic significance and is usually removed from the valuable components by

  • Effects of type and dosages of organic depressants on

    2018-12-1 · Organic depressants which have been used for pyrite flotation included polysaccharide polymers (starch, dextrin, Guargum, carboxymethyl cellulose and chitosan), polyacrylamides (PAMs), wood extracts (biopolymers of lignosulphonate), DETA, etc. . The chemical states and reactions of polymer compounds are complex.Pyrite Depression with Pionera Biopolymers Borregaard,Initial laboratory flotation experiments and a full-scale plant trial revealed that Pionera F-250 biopolymer could replace cyanide as a pyrite depressant at the Tara mine in Ireland. The use of Pionera F-250 gives flotation recoveries similar to the use of cyanide as a pyrite depressant. For the mine, the replacement of cyanide as a pyrite

  • Flotation Depressants Mineral Processing &

    2015-8-12 · Flotation Depressants. Post navigation. Previous. Next. First let’s change the amount of the Flotation Depressants used. The valuable mineral Dextrin as a non-toxic depressant for pyrite in flotation,2004-9-1 · The results of single mineral flotation tests showed that konjac glucomannan had a stronger depression effect on pyrite than traditional organic depressants (Starch, Dextrin, Guar gum) with the

  • pyrite flotation depressants in burkina faso

    Dawson metallurgical laboratories for your mineral ,flotation concentration We have extensive experience with different mineral separation procedures, including sulphide ores, oxide or transition ores and industrial minerals. We use bulk sulphide flotation tests to recover precious metals associated with pyrite or other sulphides.The Development of Research on the Pyrite Flotation,2020-2-22 · Pyrite is widely associated with chalcopyrite, sphalerite, galena and other minerals. The pyrite is easily subjected to mix into other concentrate products, resulting in a decrease in concentrate quality. This is because the pyrite has good natural floatability, and it also can be activated by copper and lead ions. Therefore, it is necessary to use depressant to selectively

  • (PDF) Electrochemical Potential Measurement in Flotation

    The roles of pulp potential, collector and depressants on the flotation of pyrite, chalcopyrite and galena were studied by using two-liquid flotation technique. The potential was adjusted byPyrite depressants useful in the separation of pyrite from,The conventional first flotation is followed by a second stage which uses an organic colloid as a depressant for the coal. The use of polyhydroxy alkyl xanthate depressants to depress the flotation of pyrite in coal flotation is taught in U.S. Pat. No. 4,211,642.

  • 2021-Evaluation of green synthetic depressants for sulfide

    2021-3-1 · Khoso S A, Hu Y, Tian M, et al. Evaluation of green synthetic depressants for sulfide flotation: Synthesis, characterization and floatation performance to pyrite and chalcopyrite[J]. Separation and Purification Technology, 2021, 259: 118138.CHAPTER 3 COMPARISON OF DIFFERENT PYRRHOTITE ,2020-9-28 · Industries Inc. developed several polymeric pyrite/pyrrhotite depressants. Of the various products tested, S-7260 and S-7261 showed the best results in depressing pyrite during coal flotation (85). The purpose of this research is to investigate the depression effect of two polymeric depressants (S-7260 and S-7261) developed by Cytec Industries by

  • Depressants Solvay

    2022-3-15 · Other applications of depressants include the flotation of simple metal sulfide and complex polymetallic bearing ores, where we provide products that depress iron sulfides such as pyrite and marcasite. Solvay also offers products for the depression of magnesium silicates such as talc, pyrophyllite, serpentines, olivines and pyroxenes.Flotation Behavior of Complex Sulfide Ores in the ,2021-8-31 · as a selective pyrite depressant in the bulk flotation of complex sulfide ore sample containing galena (PbS), chal-copyrite(CuFeS. 2),sphalerite(ZnS),pyrite(FeS. 2),dolomite set, no depressants were used and the ore was floated

  • Selective depression mechanism of combination of lime

    2022-2-1 · Flotation separation of pyrite from arsenopyrite using sodium carbonate and sodium humate as depressants [J]. Colloids and Surfaces A, 2020, 595: 124669. [6] LU Ji-wei, TONG Zhong-yun, YUAN Zhi-tao, LI Li-xia, Investigation on flotation separation of chalcopyrite from arsenopyrite with a novel collector: N-butoxycarbonyl-O- isobutylDepressants flotation Big Chemical Encyclopedia,Depressants flotation In mineral technology, sulfur dioxide and sulfites are used as flotation depressants for sulfide ores.In electrowinning of copper from leach solutions from ores containing iron, sulfur dioxide prereduces ferric to ferrous ions to improve current efficiency and copper cathode quaHty. Sulfur dioxide also initiates precipitation of metallic selenium from selenous

  • Adsorption mechanism of a new depressant on pyrite

    2021-9-20 · The results of single mineral flotation tests showed that konjac glucomannan had a stronger depression effect on pyrite than traditional organic depressants (Starch, Dextrin, Guar gum) with thePyrite Depression in Multi-Metal Flotation Borregaard,Evaluation of different depressants revealed that Pionera F-250 adequately depresses pyrite and allows for the use of an economical collector. This is an executive summary based on the scientific article “Improving plant performance at the Endeavor mine using Pionera F-250” by Vanegas, C, Sithole, M, Lauten, R A, 2021 Proceedings 15th

  • Pyrite depressants useful in the separation of pyrite from

    The conventional first flotation is followed by a second stage which uses an organic colloid as a depressant for the coal. The use of polyhydroxy alkyl xanthate depressants to depress the flotation of pyrite in coal flotation is taught in U.S. Pat. No. 4,211,642.Pyrite depressants useful in the separation of pyrite from,The conventional first flotation is followed by a second stage which uses an organic colloid as a depressant for the coal. The use of polyhydroxy alkyl xanthate depressants to depress the flotation of pyrite in coal flotation is taught in U.S. Pat. No. 4,211,642.

  • Organic Flotation Depressant

    2017-10-25 · Organic depressants from the LS series are effective for both pyrite and zinc depression during sequential Cu, Cu-Pb and Pb-Zn flotation. These depressants may be used in a wide pH range and are usually added with 2021-Evaluation of green synthetic depressants for sulfide,2021-3-1 · Khoso S A, Hu Y, Tian M, et al. Evaluation of green synthetic depressants for sulfide flotation: Synthesis, characterization and floatation performance to pyrite and chalcopyrite[J]. Separation and Purification Technology, 2021, 259: 118138.

  • CHAPTER 3 COMPARISON OF DIFFERENT PYRRHOTITE

    2020-9-28 · Industries Inc. developed several polymeric pyrite/pyrrhotite depressants. Of the various products tested, S-7260 and S-7261 showed the best results in depressing pyrite during coal flotation (85). The purpose of this research is to investigate the depression effect of two polymeric depressants (S-7260 and S-7261) developed by Cytec Industries byDepressants Solvay,2022-3-15 · Other applications of depressants include the flotation of simple metal sulfide and complex polymetallic bearing ores, where we provide products that depress iron sulfides such as pyrite and marcasite. Solvay also offers products for the depression of magnesium silicates such as talc, pyrophyllite, serpentines, olivines and pyroxenes.

  • Selective depression mechanism of combination of lime

    2022-2-1 · Flotation separation of pyrite from arsenopyrite using sodium carbonate and sodium humate as depressants [J]. Colloids and Surfaces A, 2020, 595: 124669. [6] LU Ji-wei, TONG Zhong-yun, YUAN Zhi-tao, LI Li-xia, Investigation on flotation separation of chalcopyrite from arsenopyrite with a novel collector: N-butoxycarbonyl-O- isobutylFlotation Conditioners -Modifiers -Activators ,2015-8-10 · Flotation Conditioners -Modifiers -Activators -Depressants. This branch of chemicals will prepare the mineral surface so other reagents will be able to collect the metal. For Conditioners and Modifiers, it may be simply