Decarbonization process for carbothermically produced aluminum

Bruno, Marshall J.; Carkin, Gerald E.; DeYoung, David H.; Dunlap, Ronald M.

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

All Classifications
A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

More Options ...

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:: Bruno, Marshall J.; Carkin, Gerald E.; DeYoung, David H.; Dunlap, Sr., Ronald M.

Issue Date:: Tue Jun 30 00:00:00 EDT 2015

Research Org.:: Alcon Inc., Pittsburgh, PA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1187948

Patent Number(s):: 9068246

Application Number:: 12/334,687

Assignee:: Alcon Inc. (Pittsburgh, PA)

Patent Classifications (CPCs):: C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

Show more

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B21/02 - with reducing {
C22B21/064 - {using inert or reactive gases
C22B5/06 - by carbides or the like

Show less

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.

Copy to clipboard


                    Bruno, Marshall J., Carkin, Gerald E., DeYoung, David H., & Dunlap, Sr., Ronald M. Decarbonization process for carbothermically produced aluminum.  United States.

Copy to clipboard


                    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.

Copy to clipboard


                    
@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         = {Tue Jun 30 00:00:00 EDT 2015},

  month        = {Tue Jun 30 00:00:00 EDT 2015}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Metallurgical process for purifying aluminum-silicon alloy
patent, May 1976

Valdo, Alex R.
US Patent Document 3,958,979
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3958979

Carbothermic production of aluminum
patent, July 1976

Cochran, C. Norman
US Patent Document 3,971,653
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3971653

Treatment of carbothermically produced aluminum
patent, August 1976

Kibby, Robert M.
US Patent Document 3,975,187
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3975187

Reduction of stable oxides
patent, December 1979

Tylko, Jozef K.
US Patent Document 4,177,060
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4177060

Aluminum purification system
patent, August 1980

Kibby, Robert M.
US Patent Document 4,216,010
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4216010

Fractional crystallization process
patent, September 1980

Dawless, Robert K.; Graziano, Robert E.; Bonarett, Arthur A.
US Patent Document 4,221,590
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4221590

Production of extreme purity aluminum
patent, September 1980

Dawless, Robert K.; Jacobs, Stanley C.
US Patent Document 4,222,830
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4222830

Production of extreme purity aluminum
patent, December 1980

Dawless, Robert K.; Jacobs, Stanley C.
US Patent Document 4,239,606
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4239606

Silicon purification process
patent, January 1981

Dawless, Robert K.
US Patent Document 4,246,249
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4246249

Silicon purification method
patent, March 1981

Dawless, Robert K.
US Patent Document 4,256,717
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4256717

Production of extreme purity aluminum
patent, June 1981

Dawless, Robert K.; Jacobs, Stanley C.
US Patent Document 4,273,627
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4273627

Fractional crystallization process
patent, October 1981

Dawless, Robert K.; Graziano, Robert E.
US Patent Document 4,294,612
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4294612

Energy efficient production of aluminum by carbothermic reduction of alumina
patent, November 1981

Cochran, C. Norman; Fitzgerald, Nancy M.
US Patent Document 4,299,619
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4299619

Method of silicon purification
patent, January 1982

Dawless, Robert K.
US Patent Document 4,312,846
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4312846

Silicon purification system
patent, January 1982

Dawless, Robert K.
US Patent Document 4,312,847
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4312847

Boron removal in silicon purification
patent, January 1982

Dawless, Robert K.
US Patent Document 4,312,848
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4312848

Phosphorous removal in silicon purification
patent, January 1982

Kramer, Raymond A.
US Patent Document 4,312,849
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4312849

Slag decarbonization with a phase inversion
patent, October 1983

Moore, Thomas W.
US Patent Document 4,409,021
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4409021

Purification of molten aluminum using upper and lower impellers
patent, August 1994

Yu, Ho; Stevens, Judith G.
US Patent Document 5,342,429
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5342429

Method of gas fluxing with two rotatable dispensers
patent, September 1995

Yu, Ho; Scherbak, Michael
US Patent Document 5,453,110
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5453110

Method and reactor for production of aluminum by carbothermic reduction of alumina
patent, August 2002

Johansen, Kai; Aune, Jan A.
US Patent Document 6,440,193
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6440193

Carbothermic aluminum production using scrap aluminum as a coolant
patent, November 2002

LaCamera, Alfred F.
US Patent Document 6,475,260
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6475260

Method for recovering aluminum vapor and aluminum suboxide from off-gases during production of aluminum by carbothermic reduction of alumina
patent, March 2003

Lindstad, Tor
US Patent Document 6,530,970
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6530970

Method and reactor for production of aluminum by carbothermic reduction of alumina
patent, October 2004

Aune, Jan A.; Johansen, Kai
US Patent Document 6,805,723
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6805723

Method using selected carbons to react with Al2O and Al vapors in the carbothermic production of aluminum
patent, February 2005

Fruehan, Richard J.; Li, Yun-Li; Carkin, Gerald E.
US Patent Document 6,849,101
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6849101

Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace
patent, December 2005

Aune, Jan A.; Brinch, Jon; Johansen, Kai
US Patent Document 6,980,580
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6980580

Device and method for treatment of gases
patent, January 2007

Vegge, Olaf Trygve; Brinch, Jon
US Patent Document 7,169,207
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7169207

Investigating the Viability off Carbothermic Alumina Reduction
journal, November 1988

Saavedra, Antonio F.; Kibby, Robert M.
JOM, Vol. 40, Issue 11
https://doi.org/10.1007/BF03258807

Similar Records in DOE Patents and OSTI.GOV collections:

Carbothermic reduction and prereduced charge for producing aluminum-silicon alloys

Patent Stevenson, David T [Washington Township, Armstrong County, PA]; Troup, Robert L [Murrysville, PA]

Disclosed is a method for the carbothermic reduction of aluminum oxide to form an aluminum alloy including producing silicon carbide by heating a first mix of carbon and silicon oxide in a combustion reactor to an elevated temperature sufficient to produce silicon carbide at an accelerated rate, the heating being provided by an in situ combustion with oxygen gas, and then admixing the silicon carbide with carbon and aluminum oxide to form a second mix and heating the second mix in a second reactor to an elevated metal-forming temperature sufficient to produce aluminum-silicon alloy. The prereduction step includes holding aluminummore » « less
Full Text Available
Carbothermic Aluminum Production Using Scrap Aluminum As A Coolant

Patent LaCamera, Alfred F [Trafford, PA]

A process for producing aluminum metal by carbothermic reduction of alumina ore. Alumina ore is heated in the presence of carbon at an elevated temperature to produce an aluminum metal body contaminated with about 10-30% by wt. aluminum carbide. Aluminum metal or aluminum alloy scrap then is added to bring the temperature to about 900-1000.degree. C. and precipitate out aluminum carbide. The precipitated aluminum carbide is filtered, decanted, or fluxed with salt to form a molten body having reduced aluminum carbide content.
Full Text Available
Method And Reactor For Production Of Aluminum By Carbothermic Reduction Of Alumina

Patent Aune, Jan Arthur [Ytre Enebakk, NO]; Johansen, Kai [Kristiansand, NO]

A hollow partition wall is employed to feed carbon material to an underflow of a carbothermic reduction furnace used to make aluminum. The partition wall divides a low temperature reaction zone where aluminum oxide is reacted with carbon to form aluminum carbide and a high temperature reaction zone where the aluminum carbide and remaining aluminum oxide are reacted to form aluminum and carbon monoxide.
Full Text Available
Method using selected carbons to react with Al2O and Al vapors in the carbothermic production of aluminum

Patent Fruehan, Richard J.; Li, Yun; Carkin, Gerald

In a method for recovering Al from an off-gas (3,4) produced during carbothermic reduction of aluminum utilizing at least one smelter (1,2), the off-gas (3,4) is directed to an enclosed reactor (5) which is fed a supply of wood charcoal (7) having a porosity of from about 50 vol. % to 85 vol. % and an average pore diameter of from about 0.05 .mu.m to about 2.00 .mu.m, where the wood charcoal (7) contacts the off-gas (3,4) to produce at least Al.sub.4 C.sub.3 (6), which is passed back to the smelter (1,2).
Full Text Available
One step process for producing dense aluminum nitride and composites thereof

Patent Holt, J Birch [San Jose, CA]; Kingman, Donald D [Danville, CA]; Bianchini, Gregory M [Livermore, CA]

A one step combustion process for the synthesis of dense aluminum nitride compositions is disclosed. The process comprises igniting pure aluminum powder in a nitrogen atmosphere at a pressure of about 1000 atmospheres or higher. The process enables the production of aluminum nitride bodies to be formed directly in a mold of any desired shape.
Full Text Available

Similar Records

Title: Decarbonization process for carbothermically produced aluminum

Abstract

Citation Formats

Metallurgical process for purifying aluminum-silicon alloy patent, May 1976

Carbothermic production of aluminum patent, July 1976

Treatment of carbothermically produced aluminum patent, August 1976

Reduction of stable oxides patent, December 1979

Aluminum purification system patent, August 1980

Fractional crystallization process patent, September 1980

Production of extreme purity aluminum patent, September 1980

Production of extreme purity aluminum patent, December 1980

Silicon purification process patent, January 1981

Silicon purification method patent, March 1981

Production of extreme purity aluminum patent, June 1981

Fractional crystallization process patent, October 1981

Energy efficient production of aluminum by carbothermic reduction of alumina patent, November 1981

Method of silicon purification patent, January 1982

Silicon purification system patent, January 1982

Boron removal in silicon purification patent, January 1982

Phosphorous removal in silicon purification patent, January 1982

Slag decarbonization with a phase inversion patent, October 1983

Purification of molten aluminum using upper and lower impellers patent, August 1994

Method of gas fluxing with two rotatable dispensers patent, September 1995

Method and reactor for production of aluminum by carbothermic reduction of alumina patent, August 2002

Carbothermic aluminum production using scrap aluminum as a coolant patent, November 2002

Method for recovering aluminum vapor and aluminum suboxide from off-gases during production of aluminum by carbothermic reduction of alumina patent, March 2003

Method and reactor for production of aluminum by carbothermic reduction of alumina patent, October 2004

Method using selected carbons to react with Al2O and Al vapors in the carbothermic production of aluminum patent, February 2005

Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace patent, December 2005

Device and method for treatment of gases patent, January 2007

Investigating the Viability off Carbothermic Alumina Reduction journal, November 1988

Metallurgical process for purifying aluminum-silicon alloy
patent, May 1976

Carbothermic production of aluminum
patent, July 1976

Treatment of carbothermically produced aluminum
patent, August 1976

Reduction of stable oxides
patent, December 1979

Aluminum purification system
patent, August 1980

Fractional crystallization process
patent, September 1980

Production of extreme purity aluminum
patent, September 1980

Production of extreme purity aluminum
patent, December 1980

Silicon purification process
patent, January 1981

Silicon purification method
patent, March 1981

Production of extreme purity aluminum
patent, June 1981

Fractional crystallization process
patent, October 1981

Energy efficient production of aluminum by carbothermic reduction of alumina
patent, November 1981

Method of silicon purification
patent, January 1982

Silicon purification system
patent, January 1982

Boron removal in silicon purification
patent, January 1982

Phosphorous removal in silicon purification
patent, January 1982

Slag decarbonization with a phase inversion
patent, October 1983

Purification of molten aluminum using upper and lower impellers
patent, August 1994

Method of gas fluxing with two rotatable dispensers
patent, September 1995

Method and reactor for production of aluminum by carbothermic reduction of alumina
patent, August 2002

Carbothermic aluminum production using scrap aluminum as a coolant
patent, November 2002

Method for recovering aluminum vapor and aluminum suboxide from off-gases during production of aluminum by carbothermic reduction of alumina
patent, March 2003

Method and reactor for production of aluminum by carbothermic reduction of alumina
patent, October 2004

Method using selected carbons to react with Al2O and Al vapors in the carbothermic production of aluminum
patent, February 2005

Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace
patent, December 2005

Device and method for treatment of gases
patent, January 2007

Investigating the Viability off Carbothermic Alumina Reduction
journal, November 1988