copper concentrates | Define copper concentrates at Dictionary.comdictionary.reference.com/browse/copper concentrates

The world's most popular free online dictionary with definitions, spell check, word origins, example sentences, audio pronunciations, Word of the Day and more!

Copper extraction - Wikipedia

Copper concentrate is traded either via spot contracts or under long term contracts as an intermediate product in its own right. Often the smelter sells the copper metal itself on behalf of the miner. The miner is paid the price at the time that the smelter-refiner makes the...

TC/RC | Glossary | Sumitomo Metal Mining Co., Ltd.

Treatment Charge (TC) and Refining Charge (RC) are common- ly used in the terms of purchase for copper concentrate or nickel ore for refining. They are amounts designed to cover refining costs. For example, copper concentrate contracts may define a purchase price based on the LME price at a certain date, minus the...

Definitions - International Copper Study Group

There are, however, intermediate products of copper metallurgy, e.g. black copper, blister and anodes that can hardly be grouped to primary or secondary. I.1 Copper Mattes; Cement Copper. Definition: Copper matte is obtained by fusion of roasted copper sulphide concentrates or ores to separate the copper sulphide from...

copper processing | Definition, History, & Facts | Britannica.com

Collection of the froth from the surface of the flotation cell yields a copper concentrate. To increase the recovery of copper and reduce losses, the tailings are frequently reground and passed through a second flotation, the concentrate from which is combined with the initial production. The flotation concentrate is then...

Copper Concentrates - European Copper Institute

Oct 30, 2014 ... chalcocite (Cu2S). Other major elemental constituents (Al, Ca, Mg, K, Si, Mn) are incorporated in minerals, usually defined as 'gange”, such as calcite, dolomite, hornblende, quartz, chlinochlore, feldspar, kaolinite and biotite. Copper concentrates may also contain small amounts of zinc, lead, arsenic, nickel,...

Concentrate - Boliden

We produce copper, lead, nickel and zinc concentrates. The biggest source of raw materials for our smelters is metal concentrates. We also use certain intermediate forms and secondary materials. We purchase some of the raw materials from mines with which we have agreements.

glossary of technical terms - HKEXnews

not correspond to standard industry definitions. “adit” a horizontal or ... copper refining, impure copper is used as an anode. For zinc refining ... percentage of the valuable mineral to facilitate transportation and downstream processing. “copper concentrate” product of the flotation process with a copper metal content typically...

Ores and Concentrates - International Molybdenum Association

Often, historical analytical data can assist in establishing typical concentration ranges. For each type of ore or concentrate, data from all available examples should be used including data from ores or concentrates containing at least one metal (e.g., data from Cu/Au ores can be included hypothetical copper concentrate in a...

Selling Metal Concentrates: Payable Metal, Treatment Charges ...

Sep 23, 2013 ... Metals that are commonly sold as concentrates, often with several metals in a single concentrate, include copper, molybdenum, zinc, lead, nickel, gold and silver. Other less common metals sold as concentrates include antimony, arsenic, bismuth, cadmium, cerium, cobalt, gallium, indium, mercury, platinum,...

How copper is made - material, used, processing, steps, product ...

The resulting mixture, called a copper concentrate, contains about 25-35% copper along with various sulfides of copper and iron, plus smaller concentrations of gold, silver, and other materials. The remaining materials in the tank are called the gangue or tailings. They are pumped into settling ponds and allowed to dry.

ISO 10251:2006 - Copper, lead, zinc and nickel concentrates ...

ISO 10251:2006 specifies methods for the determination of moisture content of a lot of copper, lead, zinc or nickel concentrate, defined as the percentage mass loss of the moisture test portion under the conditions of drying specified in this document. ISO 10251:2006 is not applicable to drying samples used for determination...

Hazard Assessment of Ores and Concentrates - Risk Management ...

Nov 24, 2017 ... The environmental solubility of the other metals present in the concentrates (copper, arsenic, cadmium, nickel, lead), is characterised by large variations (see also Table 7.1 in Chapter 7). For all metals, conservative environmental solubility values were retained to define the hazard classification profiles of...

China tightens pollution controls on copper concentrate imports |

Dec 8, 2017 ... Copper concentrate imported into China can have maximum lead content of 6 pct, says General Administration of Quality Supervision, Inspection and Quarantine (Aqsiq). * Threshold for arsenic in copper concentrate set at 0.5 pct; fluorine 0.1 pct, cadmium 0.05 pct and mercury 0.01 pct. * Limits on toxic and...

Philippine Metals Inc. - How Copper is Sold - Thu Feb 15, 2018

Copper is sold by mining companies in two ways, concentrate sales (impure copper powder) and cathode metal sales (pure copper) depending on the type of ore deposit processed. Concentrate sales. Concentrate producers sell a concentrate powder containing 24%- 40% copper metal content to a smelter and refiner.

Introduction to Mineral Processing - Chevron Phillips Chemical

Chemicals referred to as depressants are added to the pulp to reduce the flotation of the copper minerals while allowing the molybdenum minerals to float. The tailings from the molybdenum plant are the final copper concentrate (typically greater than 30% copper). Following molybdenum rougher flotation and several...

Copper Mail No. 156 – January 31, 2018 - Aurubis

Jan 31, 2018 ... However, this was only a short-term setback. In the following days the copper price recovered again, to more than US$ 7,100/t. • Copper raw materials. After the announcement of the reference transaction for 2018 copper concentrate deliveries in the amount of US$ 82.25/t and 8.225 ¢/lb (previous year:...

IMSBC Code pocket guide - UK P&I Club

Examples of Group A cargoes. Mineral concentrates. Mineral concentrates are refined ores in which valuable components have been enriched by eliminating most waste materials. They include copper concentrate, iron concentrate, lead concentrate, nickel concentrate and zinc concentrate. Nickel ore7. There are several...

Chapter 26 - CBEC

(g) copper, nickel or cobalt mattes produced by any process of smelting (Section XV). 2. For the purposes of headings 2601 to 2617, the term “ores” means minerals of mineralogical species actually used in ..... exempts copper concentrates falling under the tariff item 2603 00 00 of the First Schedule to the Customs. Tariff Act...

Spot copper concentrate TC/RC fall 20 pct as supply down - Reuters

Jan 17, 2014 ... Japan's biggest smelter Pan Pacific Copper and BHP also have not agreed on annual term TC/RC for 2014. Japan is the second largest copper concentrate importer after China. Global miners or trading houses pay TC/RC to smelters to convert concentrate into refined metal, with the charges deducted from...

concentrate | Definition of concentrate in US English by Oxford ...

Definition of concentrate in US English - focus one's attention or mental effort on a particular object or activity, gather (people or things) together in numbers.

how physical arbitrage works - Trafigura

be combined to optimise copper concentrate trading flows. EXISTING TRADE FLOWS. Prior to this transaction, Trafigura had arranged to source copper concentrates via an offtake agreement with a Peruvian mine (1). It had also agreed to deliver copper concentrates to a Finnish smelter (2). GEOGRAPHIC ARBITRAGE.

CRU Prices

CRU Prices. Base Metals – Copper. Methodology and. Definitions Guide. May 2016. Page 2. CRU Prices Service | Methodology and Definitions. Page 2 of 8. 0B0CRU Prices. Across mining ..... Treatment and refining charges for copper concentrate and scrap discounts reflect deals concluded in the calendar month prior to...

Bisha High Grade Open Pit Copper-Zinc Mine | Nevsun Resources

Bisha, a high grade open pit mine, generates revenue from both copper and zinc concentrates containing gold and silver by-products. ... Nevsun recently signed a long-term power agreement with Aggreko to supply the mine with a combination of diesel and solar power which should be operational by Q4 2017. Water is...

US8795612B2 - Leaching process for copper concentrates ... - Google

It is known in the prior art that silver catalyzes copper dissolution from chalcopyrite in both chemical and biological leaching. Examples include F. Carranza, I. Palencia and R. Romero (1997) “Silver catalyzed IBES process: application to a Spanish copper-zinc sulfide concentrate,” Hydrometallurgy 44, 29-42; R. Romero,...

Antamina's Copper and Zinc Concentrate ... - The McIlvaine Company

slurry pipeline, commissioned in July 2001, transports concentrates of copper and zinc, as separate batches, from an ... transportation of concentrates. There are fourteen high-pressure copper concentrate slurry .... Since, in most pipelines, the dynamic head is negligible, this term is eliminated from the equation, and the...

addressing information gaps on prices of mineral products - OECD.org

The copper products most commonly traded at arm's length are copper concentrates ... the nature of the transaction: particularly whether it is short-term or part of a ... copper and scrap). • Customer needs: smelters seek concentrates best suited for the smelter. For example, smelters often seek a combination of clean and dirty...

These 10 mines will set the copper price for the next decade ...

Nov 3, 2015 ... Longer term Wood Mackenzie predicts a 10 million tonne deficit by 2028. Supply to fill this gap is expected to arise from expansions at existing operations, ramp-up in production from mines that have recently come on stream and output from a few new mine projects. Crucial for the direction of the copper...

Copper concentrate TC/RCs drop while mating season nears | Metal ...

Sep 1, 2017 ... The Metal Bulletin copper concentrates TC/RC index softened to $79.7 per tonne/79.7 cents per lb from $82.5/8.25 cents a fortnight ago. There was a shift in spot market trades away from deals above $85/8.5 cents for blends or 'dirty' parcels coupled with the clean qualities that peppered the market in early...

measurement of flame speed in copper concentrate clouds - SciELO

Munroe [20] simulated the flash smelting of copper concentrate in a 0.13 m diameter by 2 m long flash reactor. The degree of particle oxidation and temperature were studied as a function of oxygen enrichment, concentrate feed rate, and oxygen loading, defined as the mass of oxygen divided by the mass of concentrate.

Quantitative Monitoring of Microbial Species during Bioleaching of a ...

Dec 20, 2016 ... Stirred tank bioreactors for the leaching of copper concentrate, housing a consortium of acidophilic, moderately thermophilic bacteria, relevant in several ... the microbial community in bioleaching operations in order to define specific, quick, and reliable methods to be applied in further monitoring studies.

Copper Research Suite | Wood Mackenzie

Our copper research solutions include: Copper Mine Projects Database - provides an overview of global copper projects, comparative data, and an assessment of how likely they are to proceed. Copper Concentrates Service - covers concentrate balances, trade flows and TC/RC forecasts. Copper Mine Costs Model - model...

Copper concentrate TC/RCs drop while mating season nears | Metal ...

Sep 1, 2017 ... The Metal Bulletin copper concentrates TC/RC index softened to $79.7 per tonne/79.7 cents per lb from $82.5/8.25 cents a fortnight ago. There was a shift in spot market trades away from deals above $85/8.5 cents for blends or 'dirty' parcels coupled with the clean qualities that peppered the market in early...

leaching and flotation of concentrate and middligs ... - ResearchGate

hydrometallurgy for better recovering of metals from low-grade copper concentrates. Keywords: flotation hybrid technology, copper carbonate ores, feed acidic leaching. INTRODUCTION ... Examples of application of chemical treatment of flotation feed or middlings within the flotation circuit of base metals are already known...

Ores & Concentrates - REACH Metals Gateway

Apr 1, 2008 ... Hazardous ores & ore concentrates that are placed on the market must be appropriately assessed on their hazardous ... The EU REACH Regulation does not define ores and ore concentrates and makes only one explicit reference to them. Annex V .... 102110-42-9 Copper ores, concs., leached. Leached to...

Oxidative Sulfur Removal from Complex Copper Concentrate

Jul 25, 2008 ... copper concentrate were done in order to interpret the mechanism of the reaction and the dependency of oxygen partial pressure. In the present study, the removal ratio of sulfur from the complex copper concentrate at a particular time (Xt) during the oxidation reaction was defined as: Xt ¼ Xf. WI А Wt. WI.

Copper - British Geological Survey

Definition and characteristics. Copper is a non-ferrous base metal and its average concentration in the earth's crust is about 50 ppm (parts per million). The average minimum exploitable grade for a copper deposit is 0.4% which equates to a concentration factor of around 80 based on average crustal abundance. Copper...

How Hydrometallurgy and the SX/EW Process Made Copper the

Conventionally, copper is recovered by a pyrometallurgical process known as smelting. In this process copper ore is mined, crushed, ground, concentrated, smelted and refined. The mining, crushing and grinding portions of the processing are extremely energy intensive since the rock must be reduced essentially to talcum...

Modelling Workshop - Teck Chile

Mar 13, 2012 ... Treatment Charge & Refining Charge is a deduction from the payable copper. ▫ Theoretically what it take to convert a tonne of concentrates into metal but is a market driven/negotiated commercial term. ▫ Charged by a smelter to a mine. ▫ Revenue for a smelter : Cost to a Mine. • Realised TC is negotiated...

Western U.S. Smelters Reports - Oregon Department of Geology ...

or copper concentrates l ocal ly. For further information contact: Mr. L. W. Li ndqui st. ASARCO Inc. Tacoma Pl ant. P.O. Box 1677. Tacoma, WA 98401. Telephone (206) 759-3551. Purchasing of l arge quantities of concentrate is done by the Corporate. Ore Purchasing Department in New York; the address is: ASARCO Inc.

hydrometallurgical upgrading of a tetrahedrite rich copper concentrate

Fig. 6: SEM micrograph of Rockliden copper concentrate. A- tetrahedrite, B- bournonite, C- stannite, D- chalcopyrite, E- galena, F- sphalerite, G- pyrite, H- arsenopyrite and I- pyrrhotite. Table 5: Mineralogy and atomic proportions of selected microanalyses of Rockliden copper concentrate defined by SEM-EDS analysis.

PRE Post:the use of ball mills iu
NEXT Post:hammer crusher for crushing gold and cooper ore