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New Processes for Cleaning Up Copper Concentrates | E & MJ

Toowong Process–The Toowong Process is being developed by Core Resources, Brisbane, Australia. It is a patented alkaline leach process for the removal of arsenic, antimony and other penalty elements from copper, lead and nickel sulphide concentrates, and antimony from gold concentrates.

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Oxygen Smelting of Copper Concentrate With Exhaust SO2 Gas ...

Dec 20, 2013 · In the conventional copper smelting process, the concentrate is usually oxidized by air, and heat is supplied by the combustion of fuel. Considerable dust and heat losses, due to the large quantity of exhaust gas, are inevitable.

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S CESL COPPER PROCESS - semanticscholar

As replacement production from global refined copper rises, the need for producers to find cost effective ways to develop copper porphyry deposits is becoming increasingly important. For example, brownfield projects in South America with depleting heap leach production but with an underlying sulphide deposit represent an opportunity to integrate concentrate leaching with existing solvent ...

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US4115221A - Acid ferric sulfate leaching of copper ...

A process for hydrometallurgically recovering copper from concentrates of chalcopyrite and other sulfide and mixed sulfide ores utilizes the pretreatment step of fine grinding of the concentrates coupled with subsequent leaching steps. As a pretreatment for the copper-containing concentrates, the concentrates are ground, preferrably with an attritor-type grinding device, to reduce the particle ...

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US5180422A - Copper smelting process - Google Patents

A copper smelting process is disclosed in which copper concentrate is smelted in a furnace to produce purified copper. Flue gas discharged from the furnace is treated to produce sulfuric acid. Furthermore, waste liquid discharged during the production of sulfuric acid is treated to produce gypsum, and the gypsum thus produced is recycled to the furnace as a flux.

Recover Cobalt & Copper from Sulfide Concentrates

Noranda devised a process for treating a concentrate containing 0.36 pct Cu. This process comprised oxidative pressure leaching at 155° C and conventional precipitation techniques for cobalt recovery. No attempt was made to recover the copper. Because of unfavorable economic conditions, the mine was put on caretaker status in 1982.

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MINING TO SMELTING - GOLD/COPPER CONCENTRATES IN DETAIL INTRODUCTION Rocks are mined and then trucked to the process plant Acacia operates three gold mines in Tanzania: Bulyanhulu Gold Mine, Buzwagi Gold Mine and North Mara Gold Mine.

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Estimated Water Requirements for the Conventional ...

Estimated Water Requirements for the Conventional Flotation of Copper Ores . By Donald I. Bleiwas . Introduction . This report provides a perspective on the amount of water used by a conventional copper flotation plant, including the makeup water required to .

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Copper Concentrates - Cargo Handbook - the world's largest ...

4. The process is in an advanced stage of development, having treated a number of copper concentrates in a large-scale demonstration plant as well as in a smaller pilot plant. 5. A process installation would consist mainly of conventional processing equipment and well-known unit operations. 6.

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Processing of Konkola copper concen- trates and Chingola ...

Processing of Konkola copper concen-trates and Chingola refractory ore in a ... Total pressure oxidation of copper concentrates is a process option, which has been tested previously on a ... competitive with the more conventional smelting routes. The high copper, low sulphur concentrates at Konkola, coupled

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High-arsenic copper concentrates - International Mining

David Duckworth of consulting company Saint Barbara notes that "the issue of high-arsenic (high-As) copper concentrates has been highlighted recently with the start-up of a number of new projects producing this material. "Copper concentrates can be divided into clean or complex types," he writes in the company's latest newsletter.

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Development and evaluation of an early removal process for ...

Dec 01, 2010 · In conventional flotation flowsheets for treating copper sulphide ores containing small but significant amounts of arsenic, the arsenic is generally concentrated with the copper in final concentrate. Often, a penalty can be imposed by the smelter processing the concentrate, based on .

  • Published in: Minerals Engineering · 2010Authors: W J Bruckard · K J Davey · F R A Jorgensen · S Wright · D R M Brew · Nawshad HaqueAffiliation: Commonwealth Scientific and Industrial Research Organisation · Australian Nuclear S.About: Roasting · Copper · ArsenicGet Price

•More than 35% of world copper concentrate originated in South America •But only 13% of world copper concentrate was smelted in South America •Chile is the world's largest copper mine producer •China is the world's largest smelting country •China produced only 11% of total world mine production but smelted 31% of world concentrate.

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Process Development - sherritt

Recent process development studies have included pressure oxidation of copper concentrates, as well as pressure oxidation of copper-arsenic feeds to recover copper while fixing the arsenic as a stable residue. We are confident we can help your company develop the right process.

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Producing Copper Nature's Way: Bioleaching

Three of the processes introduced above have made great strides in solving these problems for the extraction of copper from chalcopyrite: The GEOCOAT™ Process - A heap leaching process that is capable of bioleaching copper concentrates. It does this by coating the concentrate slurry onto a support rock, or substrate material, and stacking this coated material in a bioxidation heap.

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The Toowong Process | Core Group

The Toowong Process is a new technology addressing the globally significant issue of arsenic and other deleterious elements in mine products. Currently many mines have no option but to ship arsenic-bearing concentrates to smelters, often on the other side of the world, and incur the associated penalties.

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Concentrator - Palabora Mining Company Ltd

Aug 14, 2019 · Conventional process route The transition to underground mining has enabled 50,000 tpd of conventional crushing, milling and flotation capacity. Copper and magnetite are recovered on behalf of Foskor (a neighbouring mining company) by toll-processing 20,000 Tpd of marginal ore from stockpiles from the open pit operation.

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Copper Smelting - an overview | ScienceDirect Topics

The flow chart in Figure 2.10.17 shows a process for recovering precious metals such as Au, Ag, and PGMs from scraps using a conventional copper smelter. In Japan, this process is primarily used to recover Au. The process applies the chemical affinity of precious metals for Cu and its sulfide.

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undertaken, comprising of: high temperature (>220ºC) pressure oxidation of the bulk concentrate in the presence of 5-10 g/L chloride (the PLATSOLTM process), followed by solid/liquid separation, gold plus PGM's recovery from solution, conventional Cu SX/EW and recycling of the copper raffinate to the autoclave. The concentrate tested

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