7. The roasting of pyrites analyzing 85% FeS, and 15% gangue utilizes 40% excess air (FeS2 to SO2 )supplied at the rate of 358 m³ /hr at 23°C , 743 mm Hg and 88% RH. A partial analysis of the cinder showed 25.92% FeS2 and17.83% gangue. Only 65% of the FeS, gasified is converted to SO2 and the rest to SO3 . Calculate the following per kg pyrite used: a) Complete analysis of the burner gas (5.4% SO,,8.6% O2 80.5% N2 , 2.9% SO3 and 2.6% H2O ) b) Weight of 15% Oleum formed from 85% H2SO4, If all the SO2 reacts in the converter (1.72)
7. The roasting of pyrites analyzing 85% FeS, and 15% gangue utilizes 40% excess air (FeS2 to SO2 )supplied at the rate of 358 m³ /hr at 23°C , 743 mm Hg and 88% RH. A partial analysis of the cinder showed 25.92% FeS2 and17.83% gangue. Only 65% of the FeS, gasified is converted to SO2 and the rest to SO3 . Calculate the following per kg pyrite used: a) Complete analysis of the burner gas (5.4% SO,,8.6% O2 80.5% N2 , 2.9% SO3 and 2.6% H2O ) b) Weight of 15% Oleum formed from 85% H2SO4, If all the SO2 reacts in the converter (1.72)
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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Transcribed Image Text:7. The roasting of pyrites analyzing 85% FeS2 and 15% gangue utilizes 40% excess air (FeS2
to SO2 )supplied at the rate of 358 m³ /hr at 23°C , 743 mm Hg and 88% RH. A partial
analysis of the cinder showed 25.92% FeS2 and17.83% gangue. Only 65% of the FeS,
gasified is converted to SO, and the rest to SO3 .
Calculate the following per kg pyrite used:
a) Complete analysis of the burner gas (5.4% SO2,8.6% O2
80.5% N2 , 2.9% SO3 and 2.6% H2O )
b) Weight of 15% Oleum formed from 85% H2SO4, If all the SO,
reacts in the converter
(1.72)
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