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United States of America Patent
Stats
-
Oct 7, 2014
Grant Date -
Mar 13, 2014
app pub date -
Nov 17, 2013
filing date -
Feb 27, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed herein is the use of differences in x-ray linear absorption coefficients to process ore and remove elements with higher atomic number from elements with lower atomic numbers. Use of this dry method at the mine reduces pollution and transportation costs. One example of said invention is the ejection of inclusions with sulfur, silicates, mercury, arsenic and radioactive elements from coal. This reduces the amount and toxicity of coal ash. It also reduces air emissions and the energy required to clean stack gases from coal combustion. Removal of said ejected elements improves thermal efficiency and reduces the pollution and carbon footprint for electrical production.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- B07C Class
- 143 Applications Filed
- 129 Patents Issued To-Date
- 90.21 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- B07C Class
- 8.51 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 7, 2026 |
