METHOD FOR CLEANING A WASTE GAS FROM A METAL REDUCTION PROCESS
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Jun 25, 2015
filing date -
Jul 3, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Gaseous perfluorocarbons in a waste gas are adsorbed by an adsorption device. Subsequently a decomposition of the perfluorocarbons takes place with formation of hydrogen fluoride. The hydrogen fluoride is converted with an oxide of a metal to be reduced, to the metal fluoride thereof. The metal fluoride formed is then fed again to the reduction process.
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SIEMENS AKTIENGESELLSCHAFT | WITTELSBACHER PLATZ 2 D-80333 MUNCHEN |
International Classification(s)

- 2015 Application Filing Year
- B01J Class
- 3259 Applications Filed
- 2459 Patents Issued To-Date
- 75.46 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
FRIEDRICH, Bernd | Aachen, DE | 10 | 169 |
# of filed Patents : 10 Total Citations : 169 | |||
HANEBUTH, Marc | Nuremburg, DE | 33 | 38 |
# of filed Patents : 33 Total Citations : 38 | |||
TREMEL, Alexander | Erlangen, DE | 38 | 36 |
# of filed Patents : 38 Total Citations : 36 | |||
VOGEL, Hanno | Monheim, DE | 4 | 2 |
# of filed Patents : 4 Total Citations : 2 |
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Patent Citation Ranking
- 2 Citation Count
- B01J Class
- 27.48 % this patent is cited more than
- 8 Age
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