skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
; ; ;
Publication 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) GFO
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}
}

Patent:

Save / Share: