Module 3: Unit Processes 1
  Lecture 23: Reduction smelting
 


Smelting of roast product constitutes part B
. Flux used is limestone and







Do yourself

2) The charge for Pb blast furnace consists of
Roasted Ore   (1000 Kg)

Pyritecinder   
(600Kg)

Coke
(180Kg)

Flux


(220 Kg)

Matte contains all of . No Pb is lost in slag or gases.
The gases containby volume

Calculate:

a) Charge balance of furnace

b) Proximate composition of matte and slag

c) Volume of blast used (at 1 atm and 273K)

Answers:

d) Amount of lead      443 kg

f) Amount of matte   106.54 Kg

f) Amount of slag       1106 Kg

g) Volume of blast  =  543m3