CSIR Technology Portal
CSIR Technology Portal

 Technology Profile

Title:

Cold Bonded Carbon Composite Pellets for Utilization of Iron Ore Micro- Fines and Carbon Bearing Fines

Value Proposition:

An energy efficient process for making Cold  Bonded Carbon Composite Pellets

Summary Application:

This process produces micro-pellets with high C content which will be used in sintering of iron ore for reduction of coke breeze consumption and in smelting reduction process with a short curing time.

Advantages:
  • This is a cold bonding process, so it is energy efficient. Curing time is very short (5-10 min).
  • It utilizes iron ore micro-fines and coal fines or coke fines or carbon containing waste fines in iron making or sintering.
  • The micro-pellets provide energy to the sinter bed for reduction in coke breeze consumption. 38-48 % reduction in coke breeze has been found when 38 % blast furnace flue dust containing pellets were mixed with iron ore in sintering(12 kg scale)
  • Since it is a composite pellet, it can be reduced faster than normal pellets
    C02 in steel plant''s waste gas is utilized in strengthening of pellet.

Tech. Readiness Level:
CSIR-National Metallurgical Laboratory
CSIR-National Metallurgical Laboratory[CSIR-NML]
:  director[at]nmlindia[dot]org
:91-657-2345202
:https://www.nml.res.in
Industrial Applications: Mineral Separation [Mining and Minerals]
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