Smelting and Gold Refining Part 1: Smelting sulfides and ...

Aug 17, 2015· Smelting and Gold Refining Part 1: Smelting sulfides and black sands to recover gold/silver ... I have been using copper as a collector metal due to its low cost and ease of refining after smelting.

PROCESS OPTIMISATION OF MIXED COPPER ORES …

base metals industry and is aimed at optimising the recovery of copper in the flotation circuit. 1. Background It was documented by Morse1 in 1922 that many of the largest copper deposits contain both sulphide and oxidised copper minerals. Ninety years later ore complexity is still challenging metallurgists when attempting plant-specific ...

US3799764A - Roasting of copper sulfide concentrates ...

a method of upgrading copper recovery from copperiron sulfide ore containing up to about 5% copper is provided comprising forming a sulfide concentrate containing at least about 15% copper from said ore, dead roasting the sulfide concentrate to produce a calcined concentrate in which the sulfur does not exceed about 1%, preferably does not exceed about 0.5% sulfur, subjecting the calcined ...

Recovery of Copper from Copper Bearing Sulphide ...

Recovery of Copper from Copper Bearing Sulphide ... Recommend Documents. Recovery of Copper from Copper Sulfide Concentrate by Sulfation ... Feb 11, 2015 - In the present work, a sulfation roasting-acid leaching process that associated .... (2008) Heap Bioleaching of Chalcopyrite: A Review. Minerals.

Copper extraction - Wikipedia

Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.

Cobalt extraction - Wikipedia

Recovery from nickel-cobalt sulfide concentrates (Sherritt process) The Sherritt process is a hydrometallurgical process named for Sherritt Gordon Mines Ltd. (now Sherritt International) of Sherridon and Lynn Lake Manitoba Canada, based on the older Forward process developed by Dr. Frank Forward for the recovery of copper and nickel from those same mines.

THE RECOVERY OF COPPER, IRON, AND SULFUR FROM …

1 Published in German in METALL (Berlin) 28 (11), 1051-54 (1974) THE RECOVERY OF COPPER, IRON, AND SULFUR FROM CHALCOPYRITE CONCENTRATE BY REDUCTION Fathi Habashi Department of Mining & Metallurgy ...

Pulverization‐Tolerance and Capacity Recovery of Copper ...

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.

Gas plant solves Hg problems with copper-sulfate absorbent ...

Copper-sulfide material has a greater efficiency for mercury removal at higher inlet mercury concentrations. The material is a mixture of copper sulfide/basic copper carbonate, zinc sulfide/basic ...

Recovery of Copper from Copper Sulfide Concentrate by ...

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: Introduction to Copper: Mining & Extraction

The barren rock, or gangue has to be separated from the sulfide minerals in order to smelt the metallic copper from the ore. By far the greatest proportion of copper is extracted from the sulfides of copper, iron and sometimes other metals. Such ores originate from sulfur-bearing volcanic magmas, which have separated into metal sulfides and siliceous melts.

Recovery of Copper by Solution Mining Methods - AZ

Recovery of Copper by Solution Mining Methods 3 Supplementing production from conventional heap leach operation, the in-place rubble leaching project at Silver Bell 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

Recover Cobalt & Copper from Sulfide Concentrates

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.

Copper(I) sulfide | Cu2S - PubChem

Copper(I) sulfide | Cu2S or Cu2HS | CID 62755 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ...

Flotation of a copper sulphide ore from Okiep using thiol ...

Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MARCH 2005 201 Figure 1—The final cumulative copper recovery vs. collector dosage obtained with C2-X, di-C2-DTP and di-C2-DTC in the flotation of the Okiep copper ore

Sulphide Ores - Corporate

Optimize your recovery and reagent consumption for sulfide ores with customized technical solutions. ... Our alternatives have proven performance in the flotation of copper ores, polymetalic ores and gold associated to sulfides. ... Sulphide Ores. Optimize your recovery and reagent consumption for sulfide ores with customized technical solutions.

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 oxides and iron into insoluble hematite. The calcine is subsequently leached with sulfuric acid from the spent copper recovery …

Supergene Oxidation of Copper Deposits: Zoning and ...

the nature and distribution of copper minerals occurring in oxide accumulations associated with weathering of copper sulfide deposits, with emphasis on minerals that occur in the supergene oxide zones of porphyry copper and skarn ore deposits."Copper oxides" are defined as those copper minerals containing oxidized

Copper recovery using leach/solvent extraction ...

leaching, or low grade sulphide ore that had to be mined in order to expose the underlying high grade sulfide ore. Copper recovered from leaching low grade copper ores was considered a bonus and little effort had been made to fully understand the leaching process or to maximize copper recovery. While some fundamental leaching studies had

Bacterial-mediated recovery of copper from low-grade ...

A higher copper recovery rate of low-grade copper sulphide ores can thus be explained based on the products formed by the acid-processed rice straw. This is due to that Fe 3+ concentration inside leaching solution reduced by ARW, which lead to a restrain of passivation layer …

The cuprex metal extraction process: Recovering copper ...

Overview The Cuprex Metal Extraction Process: Recovering Copper from Sulfide Ores R.F. Dalton, G. Diaz, R. Price and A.D. Zunkel The Cuprex™ metal extraction process produces cathode-grade copper using a hydrometallurgical process based on chloride leaching of sulfide ore concentrates.

Flotation of mixed copper oxide and sulphide minerals with ...

The copper sulphide recov-ery did not decrease when processing the blended ore compared to treating the sulphide ore indepen-dently. At a blend of 70% sulphide ore and 30% oxide ore, the rougher scavenger copper recovery was as high as 95.5%. The copper recovery from the blended ore using a mixture of collectors was shown

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

Modern commercial application of bacterial leaching began in the 1950s at Kennecott's Bingham mine near Salt Lake City, Utah. It was noticed that blue copper-containing solutions were running out of waste piles that contained copper sulfide minerals - a condition that should not have happened in the absence of powerful oxidizing agents and acid.

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

Shoremet - A Custom Tin and Copper Chemical Producer

A Custom Chemical Producer of Copper, Nickel, Tin & Other Compounds For over 20 years, Shoremet has been recovering spent/obsolete non-ferrous metallic materials for the re-manufacturing of new, high value metallic products.

12.3 Primary Copper Smelting

iron sulfide. Because copper has a higher affinity for sulfur than oxygen, the copper in the slag (as copper oxide) is converted to copper sulfide. The copper sulfide is removed and the remaining slag is discarded. Converting produces blister copper by eliminating the remaining iron and sulfur present in …

US4053305A - Recovery of copper and silver from sulfide ...

Copper and silver are recovered from complex sulfide ores or concentrates containing, in addition, metals such as lead, zinc, arsenic, antimony, and iron by …

(PDF) Recovery of Copper from Copper Sulfide Concentrate ...

PDF | 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.