copper sulfide recovery

Recovery of Elemental Sulfur During the ... - Springer

Sep 15, 2012· Results of a preliminary study of the ammoniacal leaching of synthetic covellite (CuS) in an aqueous oxidizing system in the presence of a nonmiscible organic sulfur solvent are described. Up to 60 pct of the sulfur can be recovered from the solvent as elemental sulfur while achieving high degrees of solubilization of the mineral. The effects of temperature, particle size, oxygen pressure ...

Processes | Free Full-Text | Estimation and ... - MDPI

Copper oxide ore is an important copper ore resource. For a certain copper oxide ore in Yunnan, China, experiments have been conducted on the grinding fineness, collector dosage, sodium sulfide dosage, inhibitor dosage, and activator dosage. The results showed that, by controlling the above conditions, better sulfide flotation indices of copper oxide ore are obtained. Additionally, ammonium ...

(PDF) Recovery of copper and cobalt in the comparative ...

International Journal of Engineering and Applied Sciences (IJEAS) ISSN: 2394-3661, Volume-6, Issue-7, July 2019 Recovery of copper and cobalt in the comparative flotation of a sulfide ore using xanthate and dithiophosphate as collectors Meschack Muanda Mukunga Abstract— Copper and cobalt are two major metals used in (CoAsS), carrollite (Cu (Co.Ni)2S4) and linneite (Co3S4). industry.

Bioleaching of a low-grade nickel-copper sulfide by ...

It aimed at offering new alternatives for enhancing metal recoveries from nickel-copper sulfide. Results showed a recovery of 80.4% nickel and 68.2% copper in 16-day bioleaching without l-cysteine; while 83.7% nickel and 81.4% copper were recovered in the presence of l-cysteine.

Bio-Heap Leaching of Primary Copper ... - Scientific.Net

JOGMEC has been carrying out the study on primary copper sulfide ores leaching for recovering copper economically and efficiently by heap leaching. In our study, we have been using the primary copper sulfide ore produced in an IOCG deposit. The ore is characterized by high iron content and high acid consumption in leaching. For the optimization of the leaching, the conditions such as ore size ...

Recovery of Copper from Copper Sulfide Concentrate by ...

Jan 17, 2015· fides and copper sulfide for med copper sulfate, whereas iron sulfide converted mostly to hematite at 500˚C [9]. In the present work, a sulfation roasting-acid leaching process that associated pyrometallurgical and hydro-metallurgical methods has been used for the recovery of copper from a copper sulfide concentrate. The reactions

Innovations in Copper: Mining & Extraction: Producing ...

Bioleaching is the extraction of a metal from sulfide ores or concentrates using materials found native to the environment; namely, water, air and microorganisms. In other words, bioleaching is the commercialization of the ability of certain bacteria and archaea, found in nature, to catalyze the oxidation of sulfide minerals.

Flotation and Tailing Discarding of Copper Cobalt Sulfide ...

The sulfide mineral aggregate obtained after primary grinding was selected as the recovery object, and its mineralogical characteristics, such as liberation degree and particle size, were investigated to promote total recovery in primary flotation. The copper–cobalt sulfide concentration was obtained at the following optimal conditions: the ...

Metals tolerance in moderately thermophilic isolates from ...

Selective enrichments enabled the recovery of moderately thermophilic isolates with copper bioleaching ability from a spent copper sulfide heap. Phylogenetic and physiological characterization revealed that the isolates were closely related to Sulfobacillus thermosulfidooxidans, Acidithiobacillus ca …

Recovery of Copper from Copper Sulfide Concentrate by ...

Sulfation roasting was studied to extract copper from the copper sulfide concentrate. Sodium sulfite was added as sulfation agent to the copper sulfide concentrate during roasting in this study. Sulfur removal rate at different roasting temperatures was investigated, and the effects of roasting temperature, roasting time, and the amount of sodium sulfite on copper extraction were studied.

(PDF) Leaching of Copper Sulphides

Atmospheric leaching of copper sulphides is carried out in challenging conditions of elevated. temperature, low pH and high chloride ion concentrations. In addition, the reacto rs need to ...

Recovery of copper from copper-containing sulfide ores ...

Apr 12, 2016· A process for recovering copper from copper sulfide minerals, the method comprising the steps of leaching copper sulfide minerals with an aqueous solution of ammonium chloride containing cupric chloride at a temperature of between about 40° C. and about 95° C. at atmospheric pressure, to produce a solution of cuprous/cupric chloride.

A Review of the Flotation of Copper Minerals - ResearchGate

The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance ...

Innovations: How Hydrometallurgy and the SX/EW ... - Copper

These may be mined copper minerals that are in oxidized form - minerals such as Azurite (2CuCO 3 · Cu(OH)3), Brochantite (CuSO 4), Chrysocolla (CuSiO 3 · 2H 2 O) and Cuprite (Cu2O), residual copper in old mine waste dumps whose sulfide minerals have been oxidized by exposure to the air or sulfididic copper minerals that have been oxidized by ...

Cobalt extraction - Wikipedia

Recovery from copper-cobalt sulfide concentrates. The ores are treated by a sulfatizing roast in a fluidized bed furnace to convert copper and cobalt sulfides into soluble sulfates and iron into insoluble hematite.The calcine is subsequently leached with sulfuric acid from the spent copper recovery electrolyte.Oxide concentrates are introduced at this leaching step to maintain the acid balance ...

Statistical investigation of flotation ... - ScienceDirect.com

Mar 01, 2021· Recovery of nickel, copper and cobalt from low-grade Ni-Cu sulphide tailings Hydrometallurgy, 80 ( 1–2 ) ( 2005 ), pp. 54 - 58 Article Download PDF …

Recovery of Cobalt and Copper From Complex Sulfide ...

RECOVERY OF COBALT AND COPPER FROM COMPLEX SULFIDE CONCENTRATES By R. O. Dannenberg,1 P. C. Gardner/ S. R. Crane/ and D. C. SeideP ABSTRACT The Bureau of Mines conducted laboratory investigations with the objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently used de

COPPER Copper production - TU Delft

Flotation of non-sulfide copper minerals is rare because these ores are mostly subjected to hydrometallurgical copper recovery, for example, heap leaching. In Zambia and Zaire, however, siliceous copper oxide ores are floated with fatty acid collectors, and dolomitic copper oxide ores are sulfidized with sodium hydrogensulfide and then floated ...

Copper(I) sulfide - PubChem

2. Dicopper sulphide. Copper sulfide (Cu2S) Chalcocite. More... Molecular Weight. 160.17. Component Compounds. CID 402 (Hydrogen sulfide)

Silver Recovery from Scrap and Low-Grade ... - emewCorporation

Copper sulfide concentrates are smelted, resulting in blister copper, which contains approximately 97-99% of the silver that was in the original concentrate. The blister copper is then electrolytically refined and 'slimes' accumulate on the anode or at the bottom of the refining tank. These slimes contain insoluble impurities, like silver.

Pulverization‐Tolerance and Capacity Recovery of Copper ...

Apr 26, 2019· Here, copper sulfide is suggested as a superior electrode material with high capacity, high rate, and long-term cyclability owing to its unique conversion reaction mechanism that is pulverization-tolerant and thus induces the capacity recovery.

Recover Cobalt & Copper from Sulfide Concentrates

Feb 27, 2018· Copper Recovery. Copper in the iron and arsenic-free filtrate was recovered by a combination solvent extraction-electrowirming procedure. A hydroxyoxime-type extractant was used to recover the copper, and the stripping cell was operated in a closed circuit with the electrolytic cell.

Efficient Synchronous Extraction of ... - Scientific Reports

Jun 18, 2020· Under optimal conditions, the recovery efficiency of Ni, Cu, and Co metals can achieve 95%, 99%, and 94%, respectively, whereas the recovery efficiency of Fe metal is less than 1%.

COPPER RECOVERY FROM LEAN SULFIDE ORES - …

Copper is recovered from ores containing about 10-15 percent copper in the form of a sulfide in the presence of significant amounts of iron and nickel, by sulfatizing roasting the ore in an atmosphere including 5-15 percent SO 2 at a temperature of from about 580°C to about 625°C and leaching soluble copper salt therefrom with water.

Characterization of a low-grade copper-sulphide ore to ...

in situ recovery copper sulphide X-ray fluorescence mapping X-ray diffraction quantitative evaluation of minerals by scanning electron microscopy (QEMSCAN) computed tomography scan leaching Type Technical Articles. Information Powder Diffraction, Volume 32, Supplement S2, December 2017, pp. S78 …

5th International Seminar On Process Hydrometallurgy ...

Primary sulphides Figure # 4 shows the recovery curves obtained during leaching tests in columns with low-grade primary copper sulphide with a grain size at a P80 of 10 mm. The columns were run at an approximate ambient temperature of 37 °C.

Recovery of Copper by Solution Mining Methods - Arizona

is estimated to recover 20 to 25% of the contained copper. The relatively low recovery achieved by this method is most likely due to the presence of insoluble hypogene copper sulfides, inadequate contact of the leach solutions with soluble copper minerals (i.e. channeling) and …

Enhanced methods for nickel recovery ... - emewCorporation

Copper-selective solvents can be chosen, and many steps are followed to get nickel and copper powder from the bleed. The following block flow diagram was shown in a paper by A. Agrawal et al. in 2012, demonstrating the steps of SX for nickel and copper recovery, Figure 5.

CN100485059C - Google Search

The invention relates to a method for recovering gold from a sulphidic concentrate, particularly one containing arsenopyrite and/or pyrite, hydro- metallurgically. The concentrate is first subjected to leaching with a concentrated solution of alkali chloride and copper (II) chloride, by means of which the copper minerals and some of the gold in the concentrate are made to dissolve.

RECOVERY OF COOPER FROM COPPER ... - FreePatentsOnline.com

The use of alkaline cyanide solutions for the purpose of recovering copper from ores and concentrates containing copper sulfides and where the copper is the principal metal value is known, and such processes are described in the Lower U.S. Pat. No. 3,189,435, June 15, 1965, and the Roberts U.S. Pat. No. 3,303,021, Feb. 7, 1967.

A Comparative Study of Copper Recovery from Different ...

Jan 01, 2019· No reaction products were visible on conventional leaching samples, even at the ore surfaces. INTRODUCTION Hydrometallurgical copper leaching (heap leaching or dump leaching) has been used extensively for copper recovery from oxide and secondary-sulfide ores, but not for primary copper sulfides, which contain mainly chalcopyrite as copper minerals.

(PDF) Fundamentals and applications of ... - Academia.edu

Fundamentals and applications of alkaline sulfide leaching and recovery of gold. Corby Anderson, Eric Dahlgren, Paul.Miranda, and Darby Stacey The Center for Advanced Mineral and Metallurgical Processing, Montana Tech, Room 221, ELC Building, Butte, Montana, 59701 USA, Tel: 406-496-4794, Fax: 406-496-4512 E-mail: [email protected] Matthew Jeffrey and Irsan Chandra Department …

Recovery of Radiogenic Osmium-187 from ... - Johnson Matthey

Copper concentrates are processed via smelting operations, resulting in the production of cathode copper, sulfuric acid and ammonium perrhenate. However, because the initial osmium-187 content in concentrates is less than 0.000005 wt.% (0.05 g t −1) the recovery of osmium from concentrates is …

Acid leaching of oxide–sulfide copper ore prior the ...

453 Acid leaching of oxide–sulfide copper ore prior the flotation – A way for an increased metal recovery Miroslav D. Sokić1, Vladan D. Milošević1, Velizar D. Stanković2, Vladislav Lj.Matković1, Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, Serbia 2University of Belgrade, Technical Faculty, Bor, Serbia

Recovery of copper and cobalt in the comparative ... - IJEAS

Copper sulfide minerals are chalcopyrite CuFeS 2, chalcocite CuS 2, bornite Cu 5 FeS 4. Cobalt sulfide minerals are cobaltine ... Thus, the copper recovery is quick at natural pH with the DANA until the fifth minute. After the fifth minute of flotation, the PAX is better. At pH=11, PAX have a good selectivity.

copper sulfide recovery

If you have any questions, please feel free to contact us.

Important Links

Latest Products

Subscribe Us