3. A gold ore concentrate consists mostly of silica, along with some arsenopyrite (FeAsS), and pyrite (FeS2), and a very small amount of gold. It analyzes 2% arsenic and 4% sulphur, which when roasted with air will form As2O3 and SO2 vapour and hematite in the solid residue. If stoichiometric dry air is used, how many kilo-mole of oxygen will have to be blown into the roaster per hundred tonnes of concentrate?
3. A gold ore concentrate consists mostly of silica, along with some arsenopyrite (FeAsS), and pyrite (FeS2), and a very small amount of gold. It analyzes 2% arsenic and 4% sulphur, which when roasted with air will form As2O3 and SO2 vapour and hematite in the solid residue. If stoichiometric dry air is used, how many kilo-mole of oxygen will have to be blown into the roaster per hundred tonnes of concentrate?
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter5: Gases
Section: Chapter Questions
Problem 5.2PAE
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![3. A gold ore concentrate consists mostly of silica, along with some arsenopyrite
(FeAsS), and pyrite (FeS2), and a very small amount of gold. It analyzes 2% arsenic and
4% sulphur, which when roasted with air will form As2O3 and SO2 vapour and hematite
in the solid residue. If stoichiometric dry air is used, how many kilo-mole of oxygen
will have to be blown into the roaster per hundred tonnes of concentrate?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fca6b5de9-d666-4be4-bec5-372f49facd74%2Fe2648bc1-09ee-4734-94a4-75fa2fe6cdd7%2Fg6u0ihh_processed.png&w=3840&q=75)
Transcribed Image Text:3. A gold ore concentrate consists mostly of silica, along with some arsenopyrite
(FeAsS), and pyrite (FeS2), and a very small amount of gold. It analyzes 2% arsenic and
4% sulphur, which when roasted with air will form As2O3 and SO2 vapour and hematite
in the solid residue. If stoichiometric dry air is used, how many kilo-mole of oxygen
will have to be blown into the roaster per hundred tonnes of concentrate?
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