Potential metallurgical treatment of copper concentrates …
In order to minimize the problems associated with the processing of these very hazardous materials, the arsenic content in copper concentrates must be reduced to low levels (usually less then 0.5% As). Such levels are difficult to obtain by differential flotation of the ore from some sulfide deposits 13.
اقرأ أكثر
Leaching of copper concentrates with high arsenic content …
@misc{etde_20376210, title = {Leaching of copper concentrates with high arsenic content in chlorine-chloride media; Lixiviacion de concentrados de cobre con alto contenido de arsenico en medio cloro-cloruro} author = {Herreros, O, Fuentes, G, Quiroz, R, and Vinals, J} abstractNote = {This work reports the results of copper concentrates leaching which have high arsenic …
اقرأ أكثر
ON-SITE PROCESSING VS. SALE OF COPPER CONCENTRATES CONTENTS …
SALE OF COPPER CONCENTRATES CONTENTS. zolerdene erdeneochir. See full PDF download Download PDF. ... SALE OF COPPER CONCENTRATES By Glenn Barr Jennifer Defreyne David Jones Robert Mean CESL Presented by David Jones dljones@CESL ALTA 2005 Perth, WA, Australia May 19, 2005. Revised June 2005 CONTENTS 1.
اقرأ أكثر
A review of copper–arsenic mineral removal from copper concentrates
In this paper copper–arsenic mineral removal from copper concentrates is reviewed. Graphical abstract. Copper minerals, in particular those containing arsenic, can be separated utilising techniques that control pulp potential. ... The arsenic content of Rosebery copper flotation feed is mainly present as arsenopyrite (FeAsS), ...
اقرأ أكثر
Copper Concentrates: Environmental and Human …
composition of copper concentrates may vary widely, and consequently, different copper concentrates may have different hazard profiles. Therefore, the hazards of copper concentrates should be assessed on a case-by-case basis by the producers. To assess the environmental criteria, the metal release from 12 representative copper concentrates and
اقرأ أكثر
ISO 13546:2021(en), Copper concentrates ? Determination …
ISO 9599, Copper, lead, zinc and nickel sulfide concentrates — Determination of hygroscopic moisture content of the analysis sample — Gravimetric method; ISO 12743:2018, Copper, lead, zinc and nickel concentrates — Sampling procedures for determination of …
اقرأ أكثر
Bioleaching of Sulfide Concentrates with Different Copper …
Abstract Bioleaching of sulfide concentrates with different copper and zinc contents using two cultures of acidophilic chemolithotrophic microorganisms, which were grown at 30 and 35°C, was studied. The average leaching rate of copper was shown to be directly dependent on the copper content in the concentrate. The leaching rate of zinc was found to …
اقرأ أكثر
COPPER CONCENTRATES SALES AGREEMENT AMONG LOUIS …
COPPER CONCENTRATES SALES AGREEMENT AMONG LOUIS DREYFUS COMPANY METALS SUISSE `S.A., AND TERRANE METALS CORP., AND THOMPSON CREEK METALS COMPANY INC. ... After all per-Lot assays have been completed pursuant to Sections 10.02 through 10.04, the copper, gold and silver content of the relevant Parcel shall be determined …
اقرأ أكثر
Leaching of copper concentrates with high arsenic content …
This work reports the results of copper concentrates leaching, which have high arsenic contents (up to 2.5 %). The treatments were carried out using chlorine that forms from sodium hypochlorite and sulphuric acid. The aim of this work is to obtain a solution having high copper content 4 to 6 g/1 and 5 to 7 g/1 free acid in order to submit it directly to a solvent …
اقرأ أكثر
Copper Concentrate
In general, Fe and Si are the major compositions of CS, with minor quantities of additional elements such as Cu, Al, Mg, and Ca. The copper content in CS ranges from 0.17% to 4.6%, …
اقرأ أكثر
Simultaneous extraction of copper and iron from …
In contrast to other metals, copper is used as alloys with high metallic content or as pure copper metal [4]. Consequently, it may be recycled again by a single-step process. ... Extraction of copper from chalcopyrite concentrates without sulfuric acid generation via chlorination: Part 1: Gaseous chlorination of sulfide concentrates.
اقرأ أكثر
CCU-1f Certificate of Analysis
Separate portions for both the moisture determination and the copper determination should be taken at the same time. ISO 9599:2015, Copper, lead, zinc and nickel sulfide concentrates - Determination of hygroscopic moisture content of the analysis sample - Gravimetric method, or a similar standard, describes the procedure.
اقرأ أكثر
China to tighten import thresholds for impurities in metal concentrates …
In the latest draft document to replace GB/T 200424-2006, the amount of arsenic content allowed in all metal concentrates has been lowered. For instance, the maximum arsenic content allowed in copper concentrate has been lowered to 0.4% from 0.5%; the level allowed in lead concentrate has been lowered from 0.7% to 0.6%; and that for zinc ...
اقرأ أكثر
Selective recovery of antimony from Sb-bearing copper concentrates …
The samples of copper concentrates, generated after mineral processing stages including a flotation step, were prepared by blending typical operation concentrates, where the Sb content was below the penalty scenario, with a copper concentrate rich …
اقرأ أكثر
ISO 10258:2018(en), Copper sulfide concentrates
This document specifies two titrimetric methods for the determination of the copper content of copper sulfide concentrates in the range 15 % (m/m) to 50 % (m/m), using sodium thiosulfate after separation (method 1) or without separation (method 2) of copper from interfering elements.
اقرأ أكثر
copper concentrate price
In addition, this means that there will be increased processing costs incurred when extracting lower-grade concentrates due to the lower copper content. In general terms then, 1% increases in copper content can lead to 5-10% price increases on a concentrate's market value, even though other factors such as impurities and market conditions ...
اقرأ أكثر
Fluxing Strategies for the Direct to Blister Smelting of …
Copper concentrates which have high silica but low iron contents are difficult to smelt using conventional two stage smelting processes. Direct to blister smelting is possible using either iron ... The copper content of slag varied between 7 and 10% and increased slightly with excess oxygen in the system (smelting ratio). The slag make per unit ...
اقرأ أكثر
The Shipping Regulations For Copper Concentrates
The term "Metal Sulphide Concentrates" is a general description of worldwide application for metal concentrates such as copper concentrates, zinc concentrates and lead concentrates. These cargoes are categorised as Group A cargoes according to the criteria of the IMSBC Code because it may liquefy if shipped with a moisture content in excess of ...
اقرأ أكثر
COPPER CONCENTRATE SALES AGREEMENT
COPPER CONCENTRATE SALES AGREEMENT - 3001468 - Exhibit 10.1 - 1.3 Headings. The division of this Agreement into Articles and Sections and the insertion of a table of contents and headings are for convenience of reference only and do not affect the construction or interpretation of this Agreement.
اقرأ أكثر
Copper sulfide concentrates
Copper sulfide concentrates - Determination of copper content - Titrimetric methods Concentrks de sulfure de cuivre - Dosage du cuivre - MBthodes titfim&riques Reference number IS0 10258: 1994(E) Created Date: 12/1/2021 8:33:22 PM ...
اقرأ أكثر
High 29.6% Copper and 3.96 g/t Gold Concentrate …
mineralisation can consistently deliver high-grade and potentially commercial copper concentrates of 24%-29% copper with gold content of up to 4 g/t. High copper recoveries which are consistently over 90%, and up to 98%, also underline the potential for positive outcomes from future economic studies into mining and extraction to
اقرأ أكثر
Precious metal content in copper concentrate …
The smelting of copper concentrates with higher content of impurities leads to increase in their concentrations in the intermediate products such as matte and blister copper. This causes a serious ...
اقرأ أكثر
COPPER CONCENTRATE Safety Data Sheet
P501 Dispose of contents/container in accordance with national regulation. 2.3 Other hazards which do not result in classification : Under normal transport and storage conditions, copper concentrate has low toxicity, since the metals are present as sulfides, insoluble in water with very low bioavailability.
اقرأ أكثر
Effect of sulfide mineral content in copper-zinc concentrates …
The leaching of copper-zinc concentrates with different sulfide mineral content by biogenic ferric iron has been studied. It was determined that chalcopyrite, sphalerite, pyrrhotite, and pyrite were in the range of 29–55, 11–3.9, 34–14, and 12–13%, respectively.
اقرأ أكثر
Copper concentrates — Determination of mercury …
method for the determination of the mercury content in copper sulfide concentrates. This document is applicable to mass fraction of mercury between 5 µg/g and 65 µg/g in copper sulfide concentrates. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content
اقرأ أكثر
Potential metallurgical treatment of copper concentrates …
Arsenic is present in the Earth's crust in concentrations of 4.8 ± 0.5 μg/g in the natural form1. The sources of arsenic in industrial areas are natural and anthropogenic2 and it can be found in soil, water, and atmospheric dust3. Among the biggest anthropogenic sources of arsenic are copper smelter plants, which are considered to be major environmental polluters …
اقرأ أكثر
Handling guide for copper concentrate in bulk
Sphere-shaped pebbles 75% copper with lead, tin, zinc, traces of others. Moisture content 1.5% approximately. Light grey colour when dry, dark green when wet. Odour less. ... The cargoes involved were Copper Concentrates and Barite (a mineral consisting of barium sulfate) concentrates. In the first case the cargo of copper concentrate liquefied ...
اقرأ أكثر
Contents Of Copper Concentrates
According to the Metals Economics Institute of Japan, arsenic content in copper concentrates processed in Japanese smelters has gradually increased since 1991 from 400 ppm to over 1,000 ppm in 2016, while the copper content in the concentrates decreased from near 33% to 27%Cu.26 This represents a 3 times increase in the units … Details
اقرأ أكثر
LEACHING OF COPPER CONCENTRATES
copper oxides have been in common use for some time. Prior to the development of the Sherritt-Gordon process for nickel and cobalt in which copper is recovered as high grade copper sulfide, copper sulfides were economically recovered in a hydrometallurgical process only during the leaching of waste dumps. . Need for Hydrometallurgical Processes
اقرأ أكثر
Automated analysis of copper concentrates
Automated analysis of copper concentrates The need for analysing copper concentrates to determine the copper content accurately and rapidly is increasing. Hence, there exists a demand for automated systems that perform …
اقرأ أكثر