Module 4: Unit processes 2
  Lecture 34: Material and heat balance in converting
 


Solution

First we have to perform materials balance:

Some problems on materials balance have already been illustrated. Results of material balance are:

Input (slag making stage)
Output
Matte: 40,000kg
Slag 22600kg
Flux: 10500 kg
Gases SO2=209.65 kg moles
              N2=1193kg moles
Air : N2 1193 kg moles
             O2 317 kg moles
  

 

Thermo- chemical data:






Heat of reaction



.

Sensible heat at the respective temperatures  in kcal/kg mole is

.







Heat input