copper sulfide depression

  • Potential controlled flotation and depression of copper

    1/1/1989· The complete behavior of flotation and depression of copper sulfides and oxides as a function of potential modified by sodium hydrosulfide in certain non-xanthate collector systems was studied using a Sulfide Ion Electrode (SIE).

  • Flotation separation of copper–molybdenum sulfides using

    11/1/2015· Chitosan was used as a selective depressant in copper–molybdenum sulfides flotation​.

  • (PDF) The effect of a novel depressant on the separation

    Compared with the depressant carboxymethyl cellulose (CMC) and guar gum, using of the SAG gave the highest copper recovery. It could not only eliminate a talc removal step, but also significantly...

  • Minerals Free Full-Text Derivation of Flotation

    In this study, we focused on the activation and depression by NaHS, a well-known activator and depressant of copper minerals. The flotation results showed that there can be a threshold NaHS dosage to activate the mineral surfaces, as evidenced by the depression of the minerals and reduction of recoveries at higher dosages of NaHS.

  • Oxidation/Reduction Effects in Depression of Sulfide

    2/1/1985· A review of the published literature on the mechanism of depression of sulfide minerals shows that a unified theory is not yet available. Various mechanisms that have been postulated include competition between depressants and collectors to adsorb at the surface sites, creation of thermodynamic conditions nonconducive for formation of a metal collector salt, or formation of a

  • Depressants Solvay

    Solvay has developed highly efficient and versatile sulfide mineral depressants in diverse applications. In the Cu-Mo separation system, AERO® depressants assist in the depression of copper and iron sulfides at lower doses than traditional depressants such as NaHS and Nokes reagents.

  • Minerals Free Full-Text Derivation of Flotation

    To evaluate the results of the flotation, the flotation kinetic model for copper sulfide minerals treated by NaHS was derived. In this study, we focused on the activation and depression by NaHS, a well-known activator and depressant of copper minerals.

  • Depression of gangue minerals using tailor-made CMCs in

    The most favourable conditions for MgO depression were found to be mildly acidic in which conditions the electrostatic repulsion between the CMC molecule and talc is minimised. Similar effects were...

  • Flotation Behavior of Complex Sulfide Ores in the Presence

    1/1/2017· Bulk flotation tests of sulfide mineral samples containing galena, chalcopyrite, pyrite, and sphalerite were carried out in laboratory scale Denver flotation cell to compare the depression capability of NaCN and chitosan polymer, separately. It was found that chitosan was effective mostly in

  • Copper Sulphide Ore Reagents For Copper Flotation

    Copper Sulphide Ore Reagents For Copper Flotation After two minutes flotation a copper grade of 5.2 per cent with 52 per cent recovery could be attained, against a grade of 2.5 per cent and a recovery of 44 per cent in the case of kax.the efficiency of this new collector has been ascertained on two samples of complex sulphide ores of.

  • Potential-Controlled Flotation and Depression of Copper

    7/18/2013· The complete behavior of flotation and depression of copper sulfides and oxides as a function of potential modified by sodium hydrosulfide in certain non-xanthate collector systems was studied using a sulfide ion electrode (SIE).

  • Copper Sulfide CuS espimetals

    Systemic toxic effects of copper include widespread capillary damage, kidney and liver injury, and central nervous excitation followed by depression. Jaundice and pain over the liver have been reported in acute human poisonings. Copper is mainly absorbed through the gastrointestinal tract.

  • Copper Sulfide Cu2S espimetals

    Systemic toxic effects of copper include widespread capillary damage, kidney and liver injury, and central nervous excitation followed by depression. Jaundice and pain over the liver have been reported in acute human poisonings. Copper is mainly absorbed through the gastrointestinal tract.

  • Related effects of copper, molybdenum and sulfide on

    Related effects of copper, molybdenum and sulfide on performance, hematology and copper stores of growing pigs. Kline RD, Corzo MA, Hays VW, Cromwell GL. PMID: 4747186 [PubMed indexed for MEDLINE] MeSH Terms. Animals; Body Weight; Copper/blood; Copper/metabolism* Copper/pharmacology; Depression, Chemical; Diet; Hematocrit; Hemoglobins/analysis;

  • Safety Data Sheet

    Symptoms of systemic copper poisoning may include: capillary damage, headache, cold sweat, weak pulse, and kidney and liver damage, central nervous system excitation followed by depression, jaundice, convulsions, paralysis, and coma. Death may occur from shock or renal failure.

  • Flotation Behavior of Complex Sulfide Ores in the Presence

    Since that time cyanides have been used extensively as pyrite (FeS 2) depressant in sulfide mineral flotation. Pyrite can easily float to the concentrate and deteriorate its grade and cause several problems in the subsequent downstream processes. However, cyanides depressants end up

  • Copper Sulfide Mining Threatens the Boundary Waters

    The proposed Copper Flat Mine in Sierra County, New Mexico is promising 400 direct jobs for about 10-12 years. Jobs are just as easily taken away when mining operations shut down. In Manitoba, the community of Flin Flon will lose 900 jobs, and likely experience an economic depression when it

  • Flotation Behavior of Complex Sulfide Ores in the Presence

    1/1/2017· In the early nineteenth century cyanide was discovered to be a good depressant for Ferro and zinc sulfide minerals. Since that time cyanides have been used extensively as pyrite (Fe [S.sub.2]) depressant in sulfide mineral flotation.

  • US7004326B1 Arsenide depression in flotation of multi

    US7004326B1 Arsenide depression in flotation of multi-sulfide minerals Google Patents

  • Copper Sulphide Ore Reagents For Copper Flotation

    Copper Sulphide Ore Reagents For Copper Flotation After two minutes flotation a copper grade of 5.2 per cent with 52 per cent recovery could be attained, against a grade of 2.5 per cent and a recovery of 44 per cent in the case of kax.the efficiency of this new collector has been ascertained on two samples of complex sulphide ores of.