Pyrites fines, containing 88.6% FeS 2 and 11.4% gangue are charged to a burner. An analysis of the cinder shows 81.71% Fe 2 O 3 , 2.19% FeS 2 , and 16.1% gangue. 20% excess air is supplied based on...

Pyrites fines, containing 88.6% FeS₂
and 11.4% gangue are charged to a burner. An analysis of the cinder shows 81.71% Fe₂O₃, 2.19% FeS₂, and 16.1% gangue. 20% excess air is supplied based on conversion to SO₃. The burner gas is passed directly to a converter. 96% of the sulfur burned is converted to SO₃
in the burner and converter.

What is the converter gas analysis?