CSIR Technology Portal
CSIR Technology Portal

 Technology Profile

Title:

A Process for Production of Low Sulphur Directly Reduced Iron from Waste Iron Ore Slime Including Rejected Coal Containing More Than 50% Ash

Value Proposition:

Production of highy metallised low sulphur from waste.

Summary Application:

Developed product can be used as feed/substitute of scrap material for the electric furnace, BOF furnace and induction furnace for steel making.

Advantages:
  • The process utilises ~100% waste materials to yield a value added product.
  • This invention is useful for converting steel plant wastes fines / mining waste fines such as iron ore slime/fines, middling and rejected coal containing more than 25 % ash into a highly metallised (Metallisation > 96%) low Sulphur (0.006%S) DRI suitable for induction furnace, electric arc furnace and blast furnace for iron and steel making.
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: Metal Recyling [Metallurgy] Sludge Treatment [Mining and Minerals]
Patent Application(s): 1320/KOL/2013,  1345/KOL/2013
Photograph(s)