Pyrite Fines containing 85% FeS2, and 15% gangue are charged to a burner. An analysis of the cinder shows 11.11% FeS2, 66.63 % Fe2O3, 2.67 % SO3 and 19.6% gangue. Air is supplied 17.33% in excess (FeS2 to SO3) at 25oC, 740 mmHg and 80% RH. If 8% of the SO3 formed is absorbed in the cinder,What is the nitrogen from the air?What is the % excess oxygen (FeS2 to SO3)What % FeS2 is lost in the cinder?What is the moles FeS2 converted to SO2?What is the free oxygen?What is the moles of SO2 in the Orsat analysis?

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Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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Pyrite Fines containing 85% FeS₂, and 15% gangue are charged to a burner. An analysis of the cinder shows 11.11% FeS₂, 66.63 % Fe₂O₃, 2.67 % SO₃ and 19.6% gangue. Air is supplied 17.33% in excess (FeS₂ to SO₃) at 25^oC, 740 mmHg and 80% RH. If 8% of the SO₃ formed is absorbed in the cinder,

What is the nitrogen from the air?

What is the % excess oxygen (FeS₂ to SO₃)

What % FeS₂ is lost in the cinder?

What is the moles FeS₂ converted to SO₂?

What is the free oxygen?

What is the moles of SO₂ in the Orsat analysis?

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