IPC Subgroup
C21B 5/06 using top gas in the blast furnace process
Introduced: September 1968
Last revised: January 2006
Full Title
Making pig-iron in the blast furnace > using top gas in the blast furnace process
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY OF IRON
- Subclass:
- MANUFACTURE OF IRON OR STEEL