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U.S. Department of Energy
Office of Scientific and Technical Information

Process of manufacturing Portland cement clinker

Patent ·
OSTI ID:6541610
Portland cement raw material components are completely calcined before being sintered in a rotary kiln. Clay and limestone are blended to high and low calcium blends, and each blend is fed through separate vertical calciners. Heat is directed from above in counter-current to an updraught of air. (3 claims)
Assignee:
Corresens Inc.
Patent Number(s):
US 3998649
OSTI ID:
6541610
Country of Publication:
United States
Language:
English