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  • Leaching characteristics of copper flotation waste before

    Dec 01, 2006· Leaching characteristics of copper flotation waste before thermal treatment. Due to their toxic nature which dictates proper handling, the metal ions selected for the study were Cu, Zn and Pb. The TCLP, EP Tox and ASTM results indicated that concentrations of 140, 48 and 173 mg/L of copper leachate, 17, 15 and 36 mg/L of zinc leachate and 1.5

  • RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

    RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

  • Copper Flotation Mineral Processing & Metallurgy

    Metallurgical ContentA Copper Flotation FlowsheetCOPPER MININGCRUSHING COPPER ORECOPPER ORE STORAGEGRINDING COPPER ORECOPPER FLOTATION CIRCUITCOPPER THICKENING AND FILTERINGPROCESS CONTROLSCopper Flotation Process SummaryFlotation of Copper Ores Although basic porphyry copper flotation and metallurgy has remained virtually the

  • Hydrometallurgical Production of Copper From Flotation

    lurgical leaching of chalcopyrite with acid ferric sulfate solution as an alternative process to smelting has been studied extensively (2, 5-6, 11-12, 15, 17-21, 29-30).4 The leaching process can be summarized by the chemical reaction shown below. CuFeS2 + 4Fe +3 -+ Cu +2 + 2S0 + 5Fe +2 .

  • Selective impurity removal and Cu upgrading of copper

    Aug 01, 2020· In this study, a spontaneous oxidative H 2 SO 4 leaching process was applied to upgrade and purify copper flotation concentrate from IOCG deposits via smart utilization of the oxidative Fe 3+ ions dissolved from hematite minerals. The effects of both leaching temperature (30, 60 and 90 °C) and residence time (up to 24 h) were investigated.

  • RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

    RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

  • Copper Leaching from Refractory Flotation Tailings

    copper sulfide and free oxidation copper in the raw ore were recycled by flotation, but the other refractory copper oxides, mainly the combination copper oxide, were not thoroughly recycled and the majority were lost in the tailings. As is typical for flotation tailings containing silicate gangue minerals, high temperature leaching was used [12].

  • Leaching characteristics of copper flotation waste before

    Dec 01, 2006· Leaching characteristics of copper flotation waste before thermal treatment. Due to their toxic nature which dictates proper handling, the metal ions selected for the study were Cu, Zn and Pb. The TCLP, EP Tox and ASTM results indicated that concentrations of 140, 48 and 173 mg/L of copper leachate, 17, 15 and 36 mg/L of zinc leachate and 1.5

  • Atmospheric leaching of copper flotation concentrate with

    leaching will be further processed by flotation or chloride leaching to recover Ag, Pb and precious metals. keywords: leaching, copper, sulphuric acid, industrial concentrate, galvanic interactions 1. Introduction The application of modern hydrometallurgy, well known and already approved

  • (PDF) Investigation of the optimal technology for copper

    Recycling of the flotation tailings of waste copper-clad laminates was achieved by bioleaching method, the effects of Fe2+ re-addition, leaching time, initial pH and pulp density on the copper

  • Hydrometallurgical Production of Copper From Flotation

    lurgical leaching of chalcopyrite with acid ferric sulfate solution as an alternative process to smelting has been studied extensively (2, 5-6, 11-12, 15, 17-21, 29-30).4 The leaching process can be summarized by the chemical reaction shown below. CuFeS2 + 4Fe +3 -+ Cu +2 + 2S0 + 5Fe +2 .

  • Selective impurity removal and Cu upgrading of copper

    Aug 01, 2020· In this study, a spontaneous oxidative H 2 SO 4 leaching process was applied to upgrade and purify copper flotation concentrate from IOCG deposits via smart utilization of the oxidative Fe 3+ ions dissolved from hematite minerals. The effects of both leaching temperature (30, 60 and 90 °C) and residence time (up to 24 h) were investigated.

  • INVESTIGATION OF THE OPTIMAL TECHNOLOGY FOR

    This work aimed to investigate optimal leaching technology for copper extraction from old flotation tailings of the Copper Mine Bor. The leaching degree of copper after leaching with sulphuric acid at 80 °C was 50%, the maximal leaching degree was achieved after 30 minutes. Then, old flotation tailings were leached with adapted

  • Leaching of Copper Sulphides SAIMM

    The leach residue is subjected to flotation to recover pyrite and elemental sulphur which is subsequently fed to an oxidising autoclave. Within the autoclave, the elemental sulphur and required for the copper leaching process (Dreisinger, 2006). Leach reactors are operated at atmospheric pressure near the boiling point of the slurry. The leach

  • Leaching of Trace Amounts of Metals from Flotation

    Oct 25, 2018· With decreasing ore grades, the tailings of mining operations are becoming of increasing interest as metal-containing secondary raw materials. The objective of the current work was to investigate chloride leaching of gold, copper, cobalt, nickel, and zinc present in the flotation tailings. In the current study, the effect of cupric ion as an oxidant (0–50 g/L) and NaCl (150–250 g/L) on

  • Implementation of regrind–flotation pre-treatment of the

    Nov 01, 2014· Despite the flotation plant recovery being lower than the development study, overall cumulative recovery of the flotation and leach stages still attained over 90% for both copper and gold. The CIL plant acted as a scavenger, raising overall recovery

  • (PDF) GOLD RECOVERY FROM COPPER FLOTATION TAILINGS BY

    gold recovery from copper flotation tailings by cyanide leaching Presentation (PDF Available) · February 2020 with 59 Reads How we measure 'reads'

  • Copper extraction Wikipedia

    Supergene sulfide ores rich in native copper minerals are refractory to treatment with sulfuric acid leaching on all practicable time scales, and the dense metal particles do not react with froth flotation media. Typically, if native copper is a minor part of a supergene profile it will not be recovered and will report to the tailings.

  • Recovery of metal values from copper slags by flotation

    In order to recover copper from -2 mm size fraction, shaking table, flotation and leaching tests were conducted. After shaking table experiments, a concentrate containing 19.26% Cu, 0.616% Co