Council of Scientific and Industrial Research

Unilever Plc

Unilever, N.v.

Subir Kumar Das

Jojo Joseph

Barada Kanta Mishra

Amitava Pramanik

Sujitkumar Suresh Hibare

Priyanka Rajput

Partha Sarathi Mukherjee

Snigdha Priyadarshini

Raja Kishore Paramguru

Aravindakshan Perincheery

Bhagyadhar Bhoi

Siddharth Kumar Pradhan

Sambita Sahoo

Gopa Kumar Velayudhan Nair

Arpita Sarkar

Sayan Bandyopadhyay

Direct reduced iron (DRI) is obtained from iron ore by reduction using microwave assisted low temperature hydrogen plasma. The process includes steps of: (a) loading iron ore onto a sample holder (b) placing the sample holder inside a chamber followed by evacuating the chamber; (c) introducing hydrogen gas in the chamber at flow rate ranging between 100-500 standard cubic centimeters (sccm) followed by heating the sample holder and the iron ore at a temperature ranging between 300-800&#xb0; C., a pressure ranging between 20-100 torr and a microwave power ranging between 500-1500 W to obtain direct reduced iron; and (d) cooling the direct reduced iron obtained in step (c) by flowing hydrogen at flow rate of about 300 sccm.

Green process for the preparation of direct reduced iron (DRI)

Growing community of inventors

Orissa, India

Subir Kumar Das