Pyrites analyzing 81% FeS2 and 19% gangue is burned in excess air to produce a burner gas with an Orsat analysis of 5.84% SO2, 9.72% O2 and 84.44% N2. Analysis of the cinder shows 8.29% unburned FeS2 and 3.81% SO3. The gases from the burner are cooled and made to come into contact with Milk of Lime in an absorption tower. The dolomitic lime used is 82% Cao, 16% Mgo and 2% inerts. The bisulfite liquor produced contains 7.05% total SO2 of which 1.15% is "free" and the rest 5.9% being present as bisulfites. An analysis of the dry waste gas shows that it contains only O2 and N2. Assuming no further oxidation of SO2 to SOs and formation of H;SO. in the tower. Calculate: a. kg pyrites/ kmol of BG b. kg of SOs in cinder/ kmol of BG c. kg of bisulfite liquor/ kg of pyrite
Pyrites analyzing 81% FeS2 and 19% gangue is burned in excess air to produce a burner gas with an Orsat analysis of 5.84% SO2, 9.72% O2 and 84.44% N2. Analysis of the cinder shows 8.29% unburned FeS2 and 3.81% SO3. The gases from the burner are cooled and made to come into contact with Milk of Lime in an absorption tower. The dolomitic lime used is 82% Cao, 16% Mgo and 2% inerts. The bisulfite liquor produced contains 7.05% total SO2 of which 1.15% is "free" and the rest 5.9% being present as bisulfites. An analysis of the dry waste gas shows that it contains only O2 and N2. Assuming no further oxidation of SO2 to SOs and formation of H;SO. in the tower. Calculate: a. kg pyrites/ kmol of BG b. kg of SOs in cinder/ kmol of BG c. kg of bisulfite liquor/ kg of pyrite
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:kg of bisulfite liquor/kg of pyrite *
10.0345
kg of water for slaking/kmol of BG
7.9012
3.1661
35.2181
4.4954
5.3834
kg of SO3 in cinder/kmol of BG *
0.1997
0.0715
kg of pyrites/kmol of BG *
0.2746
6.710
0.0520
8.6829
9.2285
kg of lime/kmol of BG *
O 6.3131
3.7732
O 2.6543
O 2.5204
Transcribed Image Text:Pyrites analyzing 81% FeS2 and 19% gangue is burned in excess air to produce a
burner gas with an Orsat analysis of 5.84% SO2, 9.72% O2 and 84.44% Na. Analysis of
the cinder shows 8.29% unburned FeS2 and 3.81% SO3. The gases from the burner
are cooled and made to come into contact with Milk of Lime in an absorption
tower. The dolomitic lime used is 82% CaO, 16% MgO and 2% inerts. The bisulfite
liquor produced contains 7.05% total SO2 of which 1.15% is "free" and the rest 5.9%
being present as bisulfites. An analysis of the dry waste gas shows that it contains
only O2 and N2. Assuming no further oxidation of SO2 to SOs and formation of H,SO.
in the tower.
Calculate:
a. kg pyrites/ kmol of BG
b. kg of SO3 in cinder/ kmol of BG
c. kg of bisulfite liquor/ kg of pyrite
d. kg of lime/ kmol of BG
e. kg of water for slaking/ kmol of BG
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