Countercurrent Multistage Washing of Ore. A treated ore containing inert solid gangue and copper sulfate is to be leached in a countercurrent multistage extractor using pure water to leach the CuSO̟. The solid charge rate per hour consists of 10000 kg of inert gangue (B), 1200 kg of CUSO, (solute A), and 400 kg of water (C). The exit wash solution is to contain 92 wt % water and 8 wt % CuSO4. A total of 95% of the CUSO, in the inlet ore is to be recovered. The underflow is constant at N = 0.5 kg inert gangue solid/kg aqueous solution. Calculate the number of stages required.

Countercurrent Multistage Washing of Ore. A treated ore containing inert solid gangue and copper sulfate is to be leached in a countercurrent multistage extractor using pure water to leach the CuSO̟. The solid charge rate per hour consists of 10000 kg of inert gangue (B), 1200 kg of CUSO, (solute A), and 400 kg of water (C). The exit wash solution is to contain 92 wt % water and 8 wt % CuSO4. A total of 95% of the CUSO, in the inlet ore is to be recovered. The underflow is constant at N = 0.5 kg inert gangue solid/kg aqueous solution. Calculate the number of stages required.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter8: Sampling, Standardization, And Calibration

Section: Chapter Questions

Problem 8.14QAP

See similar textbooks

Similar questions

Countercurrent Multistage Washing of Ore. A treated ore containing inert solid sulfate is to be leached in a countercurrent multistage gangue and copper extractor using pure water to leach the CuSO4. The solid charge rate per hour consists of 10000 kg of inert gangue (B), 1200 kg of CuSO, (solute A), and 400 kg of water (C). The exit wash solution is to contain 92 wt % water and 8 wt % CuSO4. A total of 95% of the CuSO, in the inlet ore is to be recovered. The underflow is constant at N Calculate the number of stages required. 0.5 kg inert gangue solid/kg aqueous solution.
(#2) Hydrogen of at pressure of Zatm flows within Diametes 40mm and thickness 0.5mm 0.2 atm. the mass and Solubilty in the tube material and 160 (kmd/m². com) respectiv. -11 a tube the pressure at the surface is diffusivity ane 1.8A10 m² / Sec and the system at Sco C. (11 obtaine the expression for melor flux " NA". ( (ii) Calculate the rate of hydrogen transfered throw tube per unit length.
For Indirect Iodometric Analysis of Copper... ~0.0896g KIO3 necessary to consume 350mL of 0.1 M Na2S2O3, Na2S2O3 is stored in an amber glass bottle until ready for use. Primary Standard KIO3 has 2g of KI, 50mL of DI water, and 10 mL of 1.0M HCl is added then immediately titrated with Na2S2O3 until medium yellow or straw... then 5mL of starch indicator is added and titrated again until blue black color turns clear. Unknown CuO use 1.2G of Unknown, 20mL of HNO3 heated until sample dissolved, 25 mL of DI water added and boiled until clear light blue color, after cooling 1:1 NH3 added (~34.47 mL of NH4OH reagent) until permanent deep blue color amine complex, 2g of NH4HF2 added and swirled until dissolved, 3 g of KI is added then titrated immediately with Na2S2O3 until brown color of iodide is nearly gone (brown milk color), 2 g of KSCN and 3 mL of starch indicator is then added with titration continuing until disappearance of new blue black color. 1. Na2CO3 is often added to thiosulfate…
For Indirect Iodometric Analysis of Copper... ~0.0896g KIO3 necessary to consume 350mL of 0.1 M Na2S2O3, Na2S2O3 is stored in an amber glass bottle until ready for use. Primary Standard KIO3 has 2g of KI, 50mL of DI water, and 10 mL of 1.0M HCl is added then immediately titrated with Na2S2O3 until medium yellow or straw... then 5mL of starch indicator is added and titrated again until blue black color turns clear. Unknown CuO use 1.2G of Unknown, 20mL of HNO3 heated until sample dissolved, 25 mL of DI water added and boiled until clear light blue color, after cooling 1:1 NH3 added (~34.47 mL of NH4OH reagent) until permanent deep blue color amine complex, 2g of NH4HF2 added and swirled until dissolved, 3 g of KI is added then titrated immediately with Na2S2O3 until brown color of iodide is nearly gone (brown milk color), 2 g of KSCN and 3 mL of starch indicator is then added with titration continuing until disappearance of new blue black color. 4. Why is the starch indicator solution…
A 100 g soil containing 20% smectitie mineral matter was mixed with 150 mL solution containing 0.10 M Pb. CEC of pure smectitie is 110 emol(+)/kg. CEC of the soil (cmol(+)/kg) is:
А, В, С + NH3 1. + HNO3, 2. toluene white precipitate white precipitate yellow toluene layer, colorless aqueous layer + excess NH3 + CH3COOH 3. precipitate dissolved 1-3. Complete the diagram above. Only the IUPAC name or the chemical formula of the reagents will be аcсepted. 1. 2. 3. For this item, provide the expected observation. Choose... Which of the following reagents can confirm the identity of the cation? Choose... The metal hydroxide form of the cation will dissolve upon addition of excess NaOH
17- The percentage of protein in meat products is determined by multiplying the %N as determined by the kjeldahl method by the arbitrary factor 6.25. A sample of processed meat scrap weighing 2.000 g is digested with concd H2SO4 and Hg (catalyst) until the N present has been converted to NH&HSO.. This is treated with excess NaOH, and the liberated NH3 is caught in 50.0 mL pipetful H2SO, (1.000 ml 0.01860g NazO). The excess acid requires 28.80 mL NaOH (1.000 mL = 0.1266 g KHP). Calculate % protein in the meat scrap.
Q1. A 100 g soil containing 20% smectitic mineral matter was mixed with 150 mL solution containing 0.10 M Pb. CEC of pure smectitie is 110 emol(¹)/kg. CEC of the soil (emol(+)/kg) is:
) - O + 88 www-awu.aleks.com Files Lecture 16 - The Punic... Rhetorical Analysis Essa... Journal Assignment: Pre... Document3.docx ALEKS - Anniston Stovall... b Answered: One way the... O CHEMICAL REACTIONS Anniston V Solving for a reactant in solution 1/5 One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(II) carbonate, in concentrated sulfuric acid. The sulfuric acid reacts with the copper(II) carbonate to produce a blue solution of copper(II) sulfate. Scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: Fe(s) + CUSO 4(aq) Cu(s) + FeSO4(aq) Suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. He adds powdered iron to a 100. mL copper(II) sulfate sample from the plant until no more copper will precipitate. He then washes, dries, and weighs the precipitate, and finds that it has a mass of…
Solution: Kso=1.41-10-11 The resistance of a saturated solution of PbSO4 (very insoluble salt) at 291K is of 1.7x106 0, being the resistivity of pure water 7.1x105 Ocm. 1. Determine the solubility product of PBSO4 at 291K knowing that Am° (SO4 2)=136 0lcm?mol-1 and Am° (Pb+2)=122 o-lcm?mol-1, 2. How many centimeters will the ion move Pb+2 in one second when applying a potential difference of 25V between two electrodes 1 cm apart?
Q2- A 30.0 mL H2C2O4 acidified solution, was treated with 25.0 mL of 0.102 M KMnOg solution. The reaction: 2MNO4- + 5 H2C204+ 6H → 2MN2+ +10CO2 + 8H20 The excess permanganate required 8.34 mL of 0.053 M Fe2* solution, the reaction Mno“ + 5Fe?* + 8H+ g Mn* +5Fe+ + 4H20 Find the molarity of the H2C2O4 solution
Gravimetric determination of Ksp. Table 1 Trial Volume of solution used (ml) Mass of empty beaker (g) Mass of beaker with solid residue (g) Mass Ca(OH)2 (g) Ksp for Ca(OH)₂= % error = 10mL 92.808g 92.766g 0.042g Determine the mass of dissolved solid that was in the saturated solution. Calculate the molar solubility of the solution (M) using the mass of dissolved solid, the volume of solution used in the analysis, and the molar mass of calcium hydroxide. Substitute the molar solubility into a version of equation 4.1 [Hint: use an ICE table] to determine the Kp. Provide an annotated calculation below: 1