Method for achieving low sulfur levels in the dri product from iron oxide reducing kilns
Patent
·
OSTI ID:6442485
A method for maintaining the sulfur level below 0.05% by weight, and preferably below 0.02% by weight, in the dri product from the process for directly reducing ore containing iron oxides in a rotary kiln using a solid carbonaceous reducing agent, fed at the materials feed end and at the discharge end of the kiln, as both fuel and reductant is disclosed, identifying the important factors in the process affecting the sulfur levels in the dri and steps and means for properly controlling these factors.
- Assignee:
- Direct Reduction Corp
- Patent Number(s):
- US 4378241
- OSTI ID:
- 6442485
- Country of Publication:
- United States
- Language:
- English
Similar Records
System for recycling char in iron oxide reducing kilns
System for control of sinter formation in iron oxide reducing kilns
System for coal blowing in iron oxide reducing kilns
Patent
·
Mon Mar 07 23:00:00 EST 1983
·
OSTI ID:6282263
System for control of sinter formation in iron oxide reducing kilns
Patent
·
Mon Dec 07 23:00:00 EST 1981
·
OSTI ID:5619736
System for coal blowing in iron oxide reducing kilns
Patent
·
Mon Mar 28 23:00:00 EST 1983
·
OSTI ID:6405848
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
ENERGY SOURCES
FOSSIL FUELS
FUELS
IRON COMPOUNDS
IRON OXIDES
KILNS
LIMESTONE
MATERIALS
OXIDES
OXYGEN COMPOUNDS
REDUCING AGENTS
REDUCTION
ROCKS
SEDIMENTARY ROCKS
SULFUR CONTENT
TRANSITION ELEMENT COMPOUNDS
400201* -- Chemical & Physicochemical Properties
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
ENERGY SOURCES
FOSSIL FUELS
FUELS
IRON COMPOUNDS
IRON OXIDES
KILNS
LIMESTONE
MATERIALS
OXIDES
OXYGEN COMPOUNDS
REDUCING AGENTS
REDUCTION
ROCKS
SEDIMENTARY ROCKS
SULFUR CONTENT
TRANSITION ELEMENT COMPOUNDS