copper sulfide objective

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sulfide mineral | Definition, Examples, Identification ...

The composition of the sulfide minerals can be expressed with the general chemical formula A m S n, in which A is a metal, S is sulfur, and m and n are integers, giving A 2 S, AS, A 3 S 4 and AS 2 stoichiometries. The metals that occur most commonly in sulfides are iron, copper, nickel, lead, cobalt, silver, and zinc, though about fifteen others enter sulfide structures.

Essay on Copper Sulfide? Who Knows? -- Chemistry

The objective of this lab was to calculate the ratio of the copper sulfur compound to conclude whether the compound is made of copper I or II. Procedure: A copper coil was twisted. The mass of the copper coil was found. The copper coil was placed in a crucible. A sulfer powder was added to the ...

Reaction 2: Copper Nitrate and Sodium Hydroxide

Copper and its Compounds Objective The objective of this experiment is to take a piece of copper as efficiently as possible through a series of chemical reactions. The final reaction in the sequence ultimately produces copper metal. Each chemical reaction will be classified and described using a

LPF Process Metallurgical Testing

The final step in the proposed LPF process development included the flotation of cement copper along with the residual sulfide copper in the ore mixture using conventional collectors (Z-200 and AP407/242) and frother (MIBC). The results of the initial open-cycle LPF tests indicated an over all copper recovery of +80% with a grade of +60% Cu.

DETERMINING THE CONCENTRATION OF A COPPER (II) …

Determining the Concentration of Copper (II) Sulfate e. Select Absorbance vs. Concentration under Set Collection Mode. The peak absorbance will be automatically selected. Select a new wavelength, if necessary, by clicking on the graph or checking the box next to the desired wavelength.

Copper - Mining Solutions : BASF SE

May 07, 2018· The mining industry has been leaching copper since the late 1960's from oxide ores, low grade secondary sulfide ores, and primary sulfide concentrates with aqueous acid or ammonia solutions, followed by solvent extraction (SX. Over time, the LIX® reagents (aldoxime and ketoxime – chelating agents) used in these solvent extraction processes have become more efficient, more …

Copper Tubing Evaluation in A Natural Gas Environment

average residential gas usage. The primary objective of this study was to evaluate and qualify the susceptibility of both bare copper tube and tin-lined copper tube to corrosion and hydrogen sulfide attack when conveying gas typically supplied to the Southern California Gas Company service areas. Comparison to the predetermined performance

Copper Mining and Processing: Processing of Copper Ores ...

Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different ...

Copper extraction - Wikipedia

All primary sulfide ores of copper sulfides, and most concentrates of secondary copper sulfides (being chalcocite), are subjected to smelting. Some vat leach or pressure leach processes exist to solubilise chalcocite concentrates and produce copper cathode from the resulting leachate solution, but this is a minor part of the market.

Lab 11 Empirical Formula Determination Copper Sulfide ...

Lab 11 EMPIRICAL FORMULA DETERMINATION - COPPER SULFIDE EXPERIMENT Honors Chemistry Objectives 1. To prepare the compound "copper sulfide". 2. To determine the empirical formula of "copper sulfide". Theory Atoms of different elements chemically combine to form different compounds following two fundamental laws.

Laboratory Manual - Chem 120 - 2011

THE SYNTHESIS OF COPPER SULFIDE When heated together, copper and sulfur combine to form a sulfide of copper. In this assignment, you will heat a known mass of copper with excess sulfur in a covered crucible to produce the nonvolatile copper sulfide. The excess sulfur vaporizes to form gaseous sulfur, which escapes from the crucible.

Recovery of Cobalt and Copper From Complex Sulfide ...

objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently used de­ pend largely upon precipitation techniques to remove impurities and re­ cover cobalt from sulfate liquors prepared by oxidative pressure leaching of the sulfide concentrates. The Bureau conducted ...

2017:02 Slow strain rate testing of copper in sulfide rich ...

Objectives. In the present SSRT experiments the objective were to identify if thresholds in regards to tensile stress and sulfide concentration under which SCC does not occur in the designed experiment could be identified.

2017:02 Slow strain rate testing of copper in sulfide rich ...

Other testing methods are also available for evaluating SCC susceptibility like constant strain or constant load testing. I this study only the first testing method, SSRT, has been employed to study SCC susceptibility of oxygen free copper sulfide containing deoxygenated water. Objectives

copper | Definition & Facts | Britannica.com

Copper: Copper, a chemical element ... Native copper is found at many locations as a primary mineral in basaltic lavas and also as reduced from copper compounds, such as sulfides, arsenides, chlorides, and carbonates. ... Encyclopædia Britannica articles are written in a neutral objective …

Bacterial consortium for copper extraction from sulphide ...

The objective of this study was isolate a bacterial consortium present in mineral composed mainly of chalcopyrite-bornite and determine which of this isolated consortiums was best suited for the extraction of copper from sulphide ore samples.

Chemical Reactions of Copper and Percent Yield

CHEMICAL REACTIONS OF COPPER AND PERCENT YIELD KEY Objective To gain familiarity with basic laboratory procedures, some chemistry of a typical transition element, and the concept of percent yield. Apparatus and Chemicals 0.5 g piece of no. 16 or no. 18 copper wire evaporating dish 250 mL beaker (2) weighing paper ...

(The Acidic Sulfide Group: Cu2+, Bi3+, (Pb2+), Sn2+, and ...

sulfide ions to cause copper (II) sulfide to precipitate: [S2−]= K sp [Cu2+] = 8.5 x 10-36 0.10 =8.5 x 10-35M The sulfide ion concentration must be just greater than this to precipitate copper (II) sulfide, and this value is typical for the other group II cations. A group III cation that is also precipitated by the sulfide …

Bioelectrochemical Leaching of Copper Sulfide Minerals

The objective of this study is to improve the understanding of copper sulfides dissolution and to use this knowledge for optimization of process parameters for commercial application of electrochemical bioleaching of chalcopyrite concentrates in stirred bioreactors. From the results of this study, the importance of the oxidation reduction potential (ORP) on the catalytic interaction between ...

Copper Sulfides - scientific.net

Abstract: The objective of this study is to improve the understanding of copper sulfides dissolution and to use this knowledge for optimization of process parameters for commercial application of electrochemical bioleaching of chalcopyrite concentrates in stirred bioreactors.

Part I: The Law of Definite Proportions

Law of Definite Proportions and Types of Chemical Reactions Objectives Today's experiment will use the Law of Conservation of mass and the Law of Definite Proportions to determine the percent composition of each element in the newly synthesized compound. (More specifically, determine the % Cu and % S by weight in the compound, copper sulfide)

Froth flotation - Wikipedia

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

professional copper sulphide ore production line - ewags.org

Apr 10, 2007· professional copper sulphide ore production line Jun 20, 2017 183; Jiangxi province Heng Cheng mineral processing equipment Co.,, is a collection of R D, production and sales of professional mineral processing equipment suppliers . high recovery sulfide copper processing plant with full engineer service . lines, professional mechanical and

How can I calculate the empirical formula of copper sulfide?

Jan 10, 2015· In order to determine the empirical formula for copper sulfide (or for any compound, for that matter) you need to have some information about either the mass of one reactant and the mass of the product, or about the percent composition of the copper sulfide. For the first case, let's assume you are doing a lab experiment in which you heat a mixture of copper and sulfur in order to produce a ...

Unlocking Value in Copper Arsenic Sulphide Resources with ...

specific to copper arsenic sulphides are briefly discussed below [12]. Pressure oxidation involves oxidation of sulphide minerals at elevated pressure and temperature in the presence of catalytic chloride ions. In the case of arsenic bearing concentrates, a significant portion of the copper value can be found in minerals such as enargite (Cu 3AsS

Control of Sulfur Dioxide Emissions From Copper Smelters ...

----- -14- PROCESS DESCRIPTION The objective of the proposed process is to produce hydrogen sulfide by leaching neutral roasted copper concentrate containing iron sulfide with hydrochloric acid. The hydrogen sulfide is formed by the reaction of the acid with iron sulfide.

Copper | Introduction to Chemistry

Hydrogen sulfides and sulfides react with copper to form various copper sulfides on the surface. In the latter case, the copper corrodes, as is seen when copper is exposed to air containing sulfur compounds. Copper(I) oxide. Copper (I) has a red color. The simplest compounds of copper are binary compounds, i.e. those containing only two elements.

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

The objective of this step is to dispose of the moisture in the loaded copper-sulfide catalyst. The vendor states in the copper-sulfide certificate of analysis that the material contains an ...

Copper Sulfate General Fact Sheet - npic.orst.edu

Copper accumulates mainly at the surface of soils, where it binds tightly and persists. Copper sulfate is highly soluble in water and it can bind to sediments. Copper is regulated by plants because it is an essential mineral. Too much copper can be toxic to plants as it inhibits photosynthesis.

Sulfide precipitation of heavy metals - EPA - Home Page ...

ABSTRACT This research program was initiated with the objective of evaluating a new process, the sulfide precipitation of heavy metals from industrial wastewaters. The process was expected to effect a more complete removal of heavy metals than conventional lime processing because of the much lower solubilities of metal sulfides than hydroxides.