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Title: The contact process
Description: Quick revision notes for AQA A level Chemistry on the Haber Process
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The contact process – production of sulphuric acid






Sulphuric acid is a commercially important raw material
It is manufactured from H2O, air and sulphur
Catalyst – V2O5
Temperature – 450oc
Pressure – 1-2 atm

Steps in the contact process
1
...
Formation of SO3 (the contact process)
 SO2 + O2  2SO3 (an exothermic reaction)
 The catalyst used in this is vanadium pentoxide
 1) V2O5 + SO2
V2O4 + SO3
 2) V2O4 + ½ O2
V2O5
3
...
Dilution of oleum
 H2O + H2S2O7 2H2SO4
 The oleum is diluted to give the desired concentration of sulphuric acid

Title: The contact process
Description: Quick revision notes for AQA A level Chemistry on the Haber Process
Buy These NotesPreview