Decarbonization process for carbothermically produced aluminum
Abstract
A method of recovering aluminum is provided. An alloy melt having Al.sub.4C.sub.3 and aluminum is provided. This mixture is cooled and then a sufficient amount of a finely dispersed gas is added to the alloy melt at a temperature of about 700.degree. C. to about 900.degree. C. The aluminum recovered is a decarbonized carbothermically produced aluminum where the step of adding a sufficient amount of the finely dispersed gas effects separation of the aluminum from the Al.sub.4C.sub.3 precipitates by flotation, resulting in two phases with the Al.sub.4C.sub.3 precipitates being the upper layer and the decarbonized aluminum being the lower layer. The aluminum is then recovered from the Al.sub.4C.sub.3 precipitates through decanting.
- Inventors:
- Issue Date:
- Research Org.:
- Alcon Inc., Pittsburgh, PA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1187948
- Patent Number(s):
- 9,068,246
- Application Number:
- 12/334,687
- Assignee:
- Alcon Inc. (Pittsburgh, PA)
- DOE Contract Number:
- FC36-00ID13900
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2008 Dec 15
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Bruno, Marshall J., Carkin, Gerald E., DeYoung, David H., and Dunlap, Sr., Ronald M. Decarbonization process for carbothermically produced aluminum. United States: N. p., 2015.
Web.
Bruno, Marshall J., Carkin, Gerald E., DeYoung, David H., & Dunlap, Sr., Ronald M. Decarbonization process for carbothermically produced aluminum. United States.
Bruno, Marshall J., Carkin, Gerald E., DeYoung, David H., and Dunlap, Sr., Ronald M. Tue .
"Decarbonization process for carbothermically produced aluminum". United States. https://www.osti.gov/servlets/purl/1187948.
@article{osti_1187948,
title = {Decarbonization process for carbothermically produced aluminum},
author = {Bruno, Marshall J. and Carkin, Gerald E. and DeYoung, David H. and Dunlap, Sr., Ronald M.},
abstractNote = {A method of recovering aluminum is provided. An alloy melt having Al.sub.4C.sub.3 and aluminum is provided. This mixture is cooled and then a sufficient amount of a finely dispersed gas is added to the alloy melt at a temperature of about 700.degree. C. to about 900.degree. C. The aluminum recovered is a decarbonized carbothermically produced aluminum where the step of adding a sufficient amount of the finely dispersed gas effects separation of the aluminum from the Al.sub.4C.sub.3 precipitates by flotation, resulting in two phases with the Al.sub.4C.sub.3 precipitates being the upper layer and the decarbonized aluminum being the lower layer. The aluminum is then recovered from the Al.sub.4C.sub.3 precipitates through decanting.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {6}
}
Works referenced in this record:
Investigating the Viability off Carbothermic Alumina Reduction
journal, November 1988
- Saavedra, Antonio F.; Kibby, Robert M.
- JOM, Vol. 40, Issue 11