Development of Synthetic Flux and a Process for De-phosphorization of Steel in Induction Furnace.

1.

Title of Product/Design/Equipment

Development of Synthetic Flux and a Process for De-phosphorization of Steel in Induction Furnace.

2.

IPR Status

Patent/Abroad IPR Details

Patent filed

3.

Application/Uses

Iron and steel making

4.

Salient Technical Features including Competing Features

Approximately 90% of nearly 15 million tonnes of steel produced in Indian induction furnaces, using DRI as the major feed material and containing phosphorous in the range of 0.08 - 0.11% is used for structural purpose. Both BIS and ASTM standards stipulates the same in the range of 0.03 - 0.06%, depending upon the application. The developed flux and the process offers the following distinct features:

• Ease of slag formation Controlled consumption of furnace lining
• Power consumption in the range of 30-40 KWh/ts during refining Steel with phosphorous below 0.05%

5.

Level/Scale of Development

Flux has been produced in 200 Kg capacity pilot scale furnace

Process developed in 20 Kg induction furnace

6.

Environmental Considerations

The process would generate approximately 15-20 kg/ts of basic slag.

7.

Status of Commercialization

Process and the flux have been successfully tested in commercial induction units of upto 6T capacity. Modality for technology transfer is being worked out

8.

Major Raw Materials to be Utilized

Commercial grade quartzite, limestone/dolomite, soda ash, mill scale, manganese ore etc.

9.

Major Plant Equipment and Machinery Required

Melting facility for production of pre-fused flux commensurate with induction furnace capacity.

10.

Techno-Economics

Cost of the developed flux is estimated to be approximately Rs. 25/Kg

11.

Technology Package

Includes (a) Process Know-How and (b) Quality Assurance Methods. Assistance in setting up the flux making plant on separate terms.