Hi,Kartik,
Jejenum is the part absorbing the iron.
Iron is absorbed along with some other protein called Transferrin
Rest of all minerals(Ca,Zn,Mg,Mn,P,Na,Cl,Cuetc.,) are absorbed in jejenum large intestine along with water.
Deodenum-transports food from stomach

Jejenum
Jejenum- transport food from small intestine

Large intestine
I have attached the Image go through it,
