Consider an iron blast furnace charged with iron ore, limestone and coke of following analyses. Rational Analysis wt% Material Fe,03 Sio, MnO Al,03 H,0 CaCO, Ore 80 12 4 Limestone 1 95 Coke 10 90 The ultimate analysis of the pig iron gives 93.8% Fe, 4% C, 1.2% Si, 1% Mn. For every ton of pig iron produced, 1750 kg of iron ore and 500 kg limestone are used and 4200 m3 of flue gas is produced. The rational analysis of flue gases gives 58% N,, 26% CO, 12% CO,, 4% H,O • Calculate the quantity of coke used per ton of pig iron • Calculate the composition of the slag Calculate the air consumption per ton of pig iron

Consider an iron blast furnace charged with iron ore, limestone and coke of following analyses. Rational Analysis wt% Material Fe,03 Sio, MnO Al,03 H,0 CaCO, Ore 80 12 4 Limestone 1 95 Coke 10 90 The ultimate analysis of the pig iron gives 93.8% Fe, 4% C, 1.2% Si, 1% Mn. For every ton of pig iron produced, 1750 kg of iron ore and 500 kg limestone are used and 4200 m3 of flue gas is produced. The rational analysis of flue gases gives 58% N,, 26% CO, 12% CO,, 4% H,O • Calculate the quantity of coke used per ton of pig iron • Calculate the composition of the slag Calculate the air consumption per ton of pig iron

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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My Home * OWLV2 | Online teaching and lea x a cvg.cengagenów.com/ilm/takeAssignment/takeCXPCompliantActivity.do?locator=assignment-take Sa 9- CHEMICAL QUANTITIES Study Pr O Previous Page 8 of 16 Next O Subni Silicon carbide, SiC, is one of the hardest materials known. Surpassed in hardness only by diamond, it is sometimes known commercially as carborundum. Silicon carbide is used primarily as an abrasive for sandpaper and is manufactured by heating common sand (silicon dioxide, SiO2) with carbon in a furnace. SiO2 (s) + C(s) + CO(g) + SiC(s) What mass of silicon carbide should result when 4.3 kg of pure sand is heated with an excess of carbon? Mass = kg Save and Er Cengage Learning | Cengage Technical Support https://als-anp.cengage.info/als-asp/take P Type here to search 1243 PM 4/24/2021
In a beaker 20mL of 0.5M Ca(OH)2 and 80mL of 0.5M CH3COOH are mixed and then this mixture is added on 2g of active coal. After waiting for about 20 minutes the solution is filtered and the filter is titrated by 1M NaOH solution in the presence of an indicator. 10mL of the NaOH solution has been used. Calculate the amount of acetic acid adsorbed per gram of the coal in moles. Explain all the steps and reactions of the experimental process by your own comments.
Pyrite (FeS2) is often roasted to obtain sulfur dioxide for making sulfuric acid. Consider the roasting reactionFeS2 + O2 = Fe2O3 + SO2Stoichiometric exercises:a) Formulate the correct stoichiometric roasting reaction Calculate, in respect to 1 t of pyrite, the stoichiometric amounts ofb) Oxygen required for roasting (in m3) c) Obtained hematite by-product (in t) d) Sulfur dioxide produced (in m3) Thermodynamic considerations:e) Calculate the reaction enthalpy ∆Ho298 for the above roasting reaction (in MJ/t of pyrite) Mind you: Requested is the reaction enthalpy per 1 t of pyrite! f) State whether the reaction is exo- or endothermic and say why. g) Calculate the actual change of entropy ∆So298 in J/(mol K) and explain why it is positive or negative
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An ore sample contains 11% impurity in additon to a mix of CuS and Cu2S. Heating 100g of the mix produces 75.4g of copper metal with a purity of 89.5%. What is weight 5 of CuS and Cu2S in the ore?
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State 6 required equipment for PVT analysis in oil and gas ?
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The thickness of the chromium plate on an auto fender is determined by dissolving a 30.0-cm2 section in acid and oxidizing Cr3+ to Cr2O7 2-with peroxydisulfate. After removing excess peroxydisulfate by boiling, 500.0 mg of Fe(NH4 )2 (SO4 )2•6H2O is added, reducing the Cr2O7 2- to Cr3+ . The excess Fe2+ is back titrated, requiring 18.29 mL of 0.00389 M K2Cr2O7 to reach the end point. Determine the average thickness of the chromium plate given that the density of Cr is 7.20 g/cm3 . Note: thickness = volume /area
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Aluminum is the most abundant metal in the earth’s crust. It is also a common household utensilmetal. The extraction of Aluminum from its ore is expensive because the metallurgy uses a veryhigh amount of electricity. The extraction of Aluminum metal takes place in a number of steps,which may be summarized below.Step 1: Washing and mechanical processes employed to the ore to remove basic impurities.Step 2: Conversion of Aluminum ore (Bauxite) to powdered Alumina (Al2O3) by reaction withconcentrated NaOH solution.Step 3: Dissolving Alumina in molten Cryolite(Na3AlF6)Step 4: Electrolytic refining of the solution at step 2. (Diagram below) to form pure Aluminummetal.Step 5: Collecting pure molten Aluminum at the cathode, which change later to solid Aluminummetal.As you observed, many changes are taking place in different steps for the above extractionprocess. Classify them as physical or chemical change and explain why?a) Step 1 __________________________________________b) Step 2…