Overview of IRON TYPES: Pig Iron, Direct Reduced Iron (DRI), Hot Briquetted Iron (HBI), Cold Briquetted Iron (CBI) and Cold Briquetted Iron and Carbon (CBIC) Specifications . Comparison of Pig Iron and DRI Properties; Manufacturing Process; Uses; Largest producers and markets

1. Dr. Hassan Z. Harraz
hharraz2006@yahoo.com
Autum 2023
@Hassan Harraz 2023
Iron Types: Pig, DRI, HBI & CBI
IRON TYPES:
Pig Iron,
Direct Reduced Iron (DRI),
Hot Briquetted Iron (HBI),
Cold Briquetted Iron (CBI)
and
Cold Briquetted Iron and
Carbon (CBIC) Specifications

2. 1. PIG IRON

3. 1.1. Pig Iron Properties

4. 1.2. Pig Iron Manufacturing Process

5. Iron and Steel Products

6. 1.3. Pig Iron Uses

7. 2. DIRECT REDUCED IRON (DRI)
or
(SPONGE IRON)

9. 2.2. Sponge Iron

10. 2.3. Definition of Direct Reduced Iron (DRI)

11. 2.4. Reduction of Iron Ore to Sponge Iron

12. 2.4. Reduction of Iron Ore to Sponge Iron… (cont.)

13. 2.4. Overview of Direct Reduction (DR) Processes

14. 2.4.1. Direct Reduction Processes

15. Direct Reduction Reactor/Furnace Types

16. 2.4. Overview of Direct Reduction (DR) Production Processes

17. 2.4.3. Gas-based processes
2.4. Overview of Direct Reduction (DR) Production Processes

18. Overview of Gas-based Direct Reduction
Process Types

19. 2.5. Sponge Iron Composition

20. Fig. 1: Different forms of DRI: (A) Lump,
(B) Pellets, and (C) Hot-Briquetted Iron
(HBI).
Table 1: Typical chemical composition of Direct Reduction
Iron.
Table 2: Physical properties of Direct Reduction Iron.

21. 2.6. Sponge Iron Characteristics

23. 2.7. Types of Sponge Iron

24. 2.8. Application of Sponge Iron (DRI)

25. 2.9. Why Use of Sponge Iron (DRI)?

26. 2.10. Disadvantages of DRI

27. 2.11. World Production of Sponge Iron (DRI)

28. 2.11.1. Largest Sponge Iron (DRI) producers by region

29. 2.12. Sponge Iron (DRI) Manufactures/Suppliers List

30. 1.13. Pig Iron vs Sponge Iron (DRI)

31. 1.13. Pig Iron vs Sponge Iron (DRI)

33. 3. BRIQUETTED IRON
(BI)
@Hassan Harraz 2023
DRI, HBI & CBI
33

34. Direct Reduced Iron (or Sponge Iron) categories

35. 3.1. Hot Briquetted Iron (HBI)

36. Hot-Briquetted Iron (HBI)

37. 3.1.1.HBI advantages

38. 3.1.2. Use of DRI and HBI in Steel Making Plants Steelmaking Methods

39. 3.1.2. Use DRI and HBI

40. 3.1.3. Manufacturers/Suppliers of HBI List

41. 3.1.4. HBI Exporters and Importers

42. 3.2. Cold Briquetted Iron (CBI)

43. 3.2. Cold Briquetting Iron (CBI)

44. i) Briquette of Sponge Iron Fine (Cold Briquetted Iron-CBI)

45. ii) Briquette of Sponge Iron Pellet (Cold Briquetted Iron and
Carbon – CBIC/CBSI)

46. Characteristics and advantages of CBIC (or CBSI)

47. Chemical and Physical analysis of CBI
@Hassan Harraz 2023
DRI, HBI & CBI
47
Element
Cold Sponge
Iron (CDRI)
CBIC (or CBSI)
Fe total 90 - 93 87 - 90
Metallization 92 - 95 92 - 95
Carbon 1.5 - 2 1.5 - 10
Bulk density
(tonne/m3)
1.6 - 1.9 2.2 - 2.5
Water Absorption
(wt%)
14 - 16 3 - 5

48. Conclusions

49. References
New steelmaking processes: drivers, requirements and potential impact.
Fruehan. s.l. : Ironmaking Steelmaking,2005, Vol. 32.
• Midrex 2018 World Direct Reduction Stats
• Trendeconomy
• Comtrade
• WorldSteel
@Hassan Harraz 2023
DRI, HBI & CBI
49