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copper ore concentration determine

Spectrophotometric Determination of Copper

• measure the absorbance of the ore sample solutions. • use the graph to determine the concentration of copper in the ore sample solutions. Materials Per lab team Spectrophotometer (Spec-20 or Genesys-20) Cuvettes (7 or more) A set of Cu2+ (aqueous copper(II)

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Student Handout Spectrophotometric Determination of Cu

concentration (x-axis). 2. Use a ruler or straight edge to draw the “best straight line” through the data points. 3. Use your graph and the absorbance values of your copper ore solutions to determine the concentration of your copper sample. Find the absorbance of your chrysocolla solution on the graph. 4.

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Introduction to Spectroscopy: Analysis of Copper Ore

copper resulted in numerous mines, and the search for copper ore is now very competitive. When a copper deposit is discovered, drilling is undertaken to determine the size and grade (concentration) of copper at the potential mining site. Recently, two potential copper mines (labeled Sites A and B) were discovered in southeastern

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Introduction to Spectroscopy: Analysis of Copper Ore

Concentration of standard solutions: Determine the concentration of dye in each of your standard solutions by using the dilution formula: M 1 V 1 = M 2 V 2 where: M 1 is the initial concentration of the stock solution (mg/mL) V 1 is the total volume that you delivered from the buret for each solution (mL). Use the exact volume delivered, not

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THE SPECTROPHOTOMETRIC DETERMINATION

C is the concentration (in mol/L). 8. Then, you will plot a graph of measured absorbance versus concentration to determine the molar absorptivity, ε, for the Cu(NH3)4 2+ ion. Then, you will use this value for ε to find the concentration of the Cu(NH3)4 2+ ion in an unknown sample (ie., the solution which your penny has been dissolved).

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Experiment: Determination of Copper in an Aqueous Sample

Weigh out accurately 0.20 g of copper(II)sulfate pentahydrate (CuSO 4⋅5H 2O) and dissolve it by adding to it about 100 mL of distilled water in a 250 mL beaker. Transfer the solution quantitatively to a 500 mL volumetric flask and make it up to volume and mix well. Calculate its concentration in terms of

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Colorimetric Measurement of Copper Ore NJIT

concentration of copper by plotting absorbance versus concentration. Determine the concentration of an unknown solution using a standard graph made by plotting absorbance versus concentration (M) using the Beer-Lambert law. Exclusive Note to Teacher: Sample of powdered ore A simulated copper ore can be made up with a minimum of 30% by mass of

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Colourimetric determination of copper ore Experiment

Samples of copper ore, such as malachite, could be shown, if available. For the second question, work out the concentration of copper in, say, test tube 3: Concentration Cu (as Cu 2+) = 4/10 x 1 M = 0.4 M. Work out the concentration of copper ions when 5 g of copper carbonate is dissolved and made up to 100 cm 3 of solution (formula mass of

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LABORATORY CONCENTRATION OF VARIOUS ALASKA

Two samples of arsenic-bearing, low-grade copper ore were obtained from the Golden Zone mine near Colorado Station, Alaska (fig. 1, item 3). By selective flot- A series of concentration tests was run to determine the most effective method of treatment. Best results were obtained by grinding the ore

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THE SPECTROPHOTOMETRIC DETERMINATION

C is the concentration (in mol/L). 8. Then, you will plot a graph of measured absorbance versus concentration to determine the molar absorptivity, ε, for the Cu(NH3)4 2+ ion. Then, you will use this value for ε to find the concentration of the Cu(NH3)4 2+ ion in an unknown sample (ie., the solution which your penny has been dissolved).

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SPECTROPHOTMETRIC DETERMINEATION OF THE COPPER

Use the calibration graph you made in prelab question 3 to determine the concentration of the solution. The total volume of the solution made in the brass reaction part of the experiment is 100.0 mL. Using your answer from prelab question 4, calculate the number of grams of copper

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Experiment 12: Make-Up Experiment Copper Analysis by

(e) mass of copper Average % copper content (f) % copper content 12B Exercise Copper(II) sulfate forms a hydrate which contains 36.1% by mass water. Since the only component (other than H2O and Cu 2+) is the sulfate ion, SO 4 2–, we can now determine the complete formula of the hydrated copper(II) sulfate. Do this determination.

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Common & Basic Formulas for Mineral Processing Calculations

Mar 20, 2016 (1) the degree of concentration and (2) the recovery of copper. Suppose in the testing of such an ore, that the following results are obtained in three tests: Test I—Ratio of concentration 30, recovery of copper 89% Test II—Ratio of concentration 27, recovery of copper 92% Test III—Ratio of concentration 15, recovery of copper 97%

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p. 1 of 3 Chemistry 201 laboratory Winter 2007

Weigh out accurately .2 g of copper(II)sulfate pentahydrate and dissolve it by adding to it about 100 mL of distilled water in a 250 mL beaker. Transfer the solution quantitatively to a 500 mL volumetric flask and make it up to volume and mix well. Calculate its concentration in terms of ppm Cu (show that the final concentration is about 100

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Beer's Law: Colorimetry of Copper(II) Solutions

Copper (II) nitrate appears blue to the eye. This is because red light is absorbed and blue light is transmitted (Table 1). The amount of red light absorbed is directly proportional to the concentration of the copper (II) ions in the solution as defined by Beer's Law. In this experiment we will measure the absorbance of several copper (II

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Acid leaching of oxide–sulfide copper ore prior the

Oxide–sulfide copper ore was sampled from the ore body Cerovo C1 (south deposit) and used in this study. The chemical composition of the ore sample is pre-sented in Table 1. From Table 1, it can be seen that the high copper concentration is in the sample, as well as the high copper oxide content, while the sulfide copper concentration is lower.

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DETERMINATION OF COPPER BY ATOMIC ABSORPTION SPECTROPHOTOMETRY

The student will analyze a sample of copper ore using atomic absorption spectrophotometry. 2. The student will use the calibration curve method of analysis. 3. The student will use the method of standard addition for this analysis. Using the data from the standard determine the concentration of each unknown solution. Also calculate the % of

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Copper extraction

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.. As in all mining operations, the ore must usually be beneficiated (concentrated).

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Copper Ore an overview ScienceDirect Topics

The principal copper ore mineral is chalcopyrite (CuFeS 2), which is commonly smelted to yield a matte containing ∼50% copper.In the presence of silica flux, iron is selectively oxidized to a slag. Figure 14 shows a PSD for the Cu–Fe–S–O system at 1 atm SO 2 as a function of temperature (Rosenqvist 1978).Unlike the system for lead, the copper and Cu 2 S melts are nearly immiscible

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Optimization of sulfuric acid leaching of roasted

Aug 26, 2020 Chalcopyrite (CuFeS2) is commonly used ore in production of copper, but leaching of this ore is very slow and inefficient due to “passivation” during leaching at atmospheric conditions. In this study, in order to overcome drawbacks of the passivation layers, the concentrate supplied from Eti Bakır A.Ş. Küre Plant in Turkey was roasted at 600 °C for 1 h and after leached.

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SPECTROPHOTMETRIC DETERMINEATION OF THE COPPER

Use the calibration graph you made in prelab question 3 to determine the concentration of the solution. The total volume of the solution made in the brass reaction part of the experiment is 100.0 mL. Using your answer from prelab question 4, calculate the number of grams of copper

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THE SPECTROPHOTOMETRIC DETERMINATION

C is the concentration (in mol/L). 8. Then, you will plot a graph of measured absorbance versus concentration to determine the molar absorptivity, ε, for the Cu(NH3)4 2+ ion. Then, you will use this value for ε to find the concentration of the Cu(NH3)4 2+ ion in an unknown sample (ie., the solution which your penny has been dissolved).

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Common & Basic Formulas for Mineral Processing Calculations

Mar 20, 2016 (1) the degree of concentration and (2) the recovery of copper. Suppose in the testing of such an ore, that the following results are obtained in three tests: Test I—Ratio of concentration 30, recovery of copper 89% Test II—Ratio of concentration 27, recovery of copper 92% Test III—Ratio of concentration 15, recovery of copper 97%

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Copper Chemistry

Sep 28, 2020 The copper concentration in such ores is typically between 0.5-2%. The commonest ore is chalcopyrite, CuFeS 2, a brass yellow ore that accounts for approximately 50% of the world's copper deposits. Numerous other copper ores of varying colours and compositions exist.

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Mineral Deposit Value How to Calculate the Potential

The concentration of a mineral in the ore body (i.e. % or g/t) 2% copper and 1.5 gram per tonne gold: Strike Length: The length in which the mineralization is found in the ore body (horizontally) 500 meters: Depth: The depth in which the mineralization is found in the ore body (vertically) 200 meters: Width

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Copper Ore an overview ScienceDirect Topics

The principal copper ore mineral is chalcopyrite (CuFeS 2), which is commonly smelted to yield a matte containing ∼50% copper.In the presence of silica flux, iron is selectively oxidized to a slag. Figure 14 shows a PSD for the Cu–Fe–S–O system at 1 atm SO 2 as a function of temperature (Rosenqvist 1978).Unlike the system for lead, the copper and Cu 2 S melts are nearly immiscible

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Procedure Residual Copper Soluble Analysis -Assay Method

Aug 02, 2013 4.1 If Total Copper has been determined and Residual Copper analysis is not required, proceed to Step 5.0 to calculate the residual copper concentration; otherwise, proceed to step 4.2. 4.2 Wash the filter residue from the cyanide soluble procedure into a

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Determining the copper content of a One Pence coin (1971

Theoretical mass of copper 3.56𝑔 𝑋 0.97 3.4532 g Theoretical moles of copper 3.4532𝑔 63.546 𝑔/ 𝑜 0.05434 mol Theoretical concentration of copper(II) ions in a 500cm3 analyte solution. 0.05434 𝑜 0.5 𝑑 3 0. í ì9 mol dm-3 (3 s.f.) Table 1.0: Expected copper content of pre-1992 One Pence coin.

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Beer's Law: Colorimetry of Copper(II) Solutions

Copper (II) nitrate appears blue to the eye. This is because red light is absorbed and blue light is transmitted (Table 1). The amount of red light absorbed is directly proportional to the concentration of the copper (II) ions in the solution as defined by Beer's Law. In this experiment we will measure the absorbance of several copper (II

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Froth flotation

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.

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DETERMINATION OF COPPER BY ATOMIC ABSORPTION SPECTROPHOTOMETRY

The student will analyze a sample of copper ore using atomic absorption spectrophotometry. 2. The student will use the calibration curve method of analysis. 3. The student will use the method of standard addition for this analysis. Using the data from the standard determine the concentration of each unknown solution. Also calculate the % of

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Analysis of the copper analyte solution by an iodometric

Table 2.0: Expected concentration of copper(II) analyte solution and the amount iodide to be added. Given that the limiting factor in reaction 2.0 is the moles of copper(II), excess iodide ions must be added to ensure all copper(II) ions are reduced to copper(I). No matter how much excess iodide ions

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The concentration of copper ions

As you can see, there is quite a lot of chemistry involved in finding the concentration of copper(II) ions in a solution. The depth of colour of a copper sulfate solution is caused by the concentration of the Cu2+(aq) ion. The more concentrated the solution, the more intense the colour.

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Iodometric titration of copper

To calculate copper solution concentration use EBAS stoichiometry calculator. Download determination of copper concentration reaction file, open it with the free trial version of the stoichiometry calculator. Click n=CV button above S 2 O 3 2-in the input frame, enter volume and concentration

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