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Compiled by Dr. Joe Herbertson
June 2001
Sustainable Resource
Processing
Case
Study: Chaparral Steel
Texas Industries, a major cement
producer, and its subsidiary Chaparral Steel have found synergies for
Chaparral’s main wastes. They have combined a “100% product” strategy with
technical innovation, which has provided a ‘veritable treasure chest of
payoffs, both environmental and economic’
Business Benefits
•Reduced
landfill requirements and Greenhouse emissions
•Significant
income from licensing new technology
•20
times increase in slag value compared to road construction
• Up to 15% energy savings and similar
productivity increases in the cement kiln
•Cooperation
from government, with streamlined permitting process
•START project ‘Systems & Technology for
Advanced Recycling’ is based on synergies with their steel,
cement and auto shredding facilities
•New technology includes:
•separation
of heavy metals from baghouse dust, remainder to
cement
•‘ChemStar’
processing of steelmaking slags for cement
•Sophisticated
automobile shredder residue treatments for
separation of metals, glass and plastics
