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A new method for the obtention of sulphuric acid
By: Adolfo Rios Pita Giurfa
The following chemical reactions describe what actually happened when in a zinc refinery the feed to the fluid bed roaster was altered by using zinc concentrates high in copper content. Free acidity rised at the "empty" gas washing tower. This phenomenon could be applied in many other cases.
|
Reaction 1: |
SO2+ |
CuO = |
SO3+ |
Cu |
|
64,00 |
79,54 |
80,00 |
63,54 |
|
|
653,40 |
812,05 |
816,75 |
648,70 |
|
|
Reaction 2: |
Cu+ |
Air(O)+ |
Heat = |
CuO |
|
63,54 |
16,00 |
79,54 |
||
|
648,70 |
163,35 |
812,05 |
||
|
Reaction 3: |
SO3+ |
H2O = |
H2SO4 |
|
|
80,00 |
18,00 |
98,00 |
||
|
816,75 |
183,77 |
1000,51 |
|
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