Acid sorption regeneration process using carbon dioxide

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United States of America Patent

PATENT NO 6316668
SERIAL NO

09257889

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Carboxylic acids are sorbed from aqueous feedstocks onto a solid adsorbent in the presence of carbon dioxide under pressure. The acids are freed from the sorbent phase by a suitable regeneration method, one of which is treating them with an organic alkylamine solution thus forming an alkylamine-carboxylic acid complex which thermally decomposes to the desired carboxylic acid and the alkylamine.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THE REGENTS OF THE UNIVERSITY OF CALIFORNIAOAKLAND, CA6559

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Husson, Scott M Anderson, SC 5 21
King, C Judson Kensington, CA 7 158

Cited Art Landscape

Patent Info (Count) # Cites Year
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (2)
* 5412126 Carboxylic acid sorption regeneration process 26 1993
* 5965771 Regeneration of carboxylic acid-laden basic sorbents by leaching with a volatile base in an organic solvent 4 1997
 
CARGILL, INCORPORATED (1)
* 5510526 Lactic acid production, separation and/or recovery process 75 1994
 
MICHIGAN BIOTECHNOLOGY INSTITUTE (1)
* 4405717 Recovery of acetic acid from a fermentation broth 43 1981
 
Koei Chemical Company, Limited (1)
* 4323702 Process for recovering a carboxylic acid 25 1980
 
UOP LLC (2)
* 4720579 Separation of citric acid from fermentation broth with a neutral polymeric adsorbent 33 1986
* 5068419 Separation of an organic acid from a fermentation broth with an anionic polymeric adsorbent 42 1989
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2010/0116,137 REMOVAL OF CARBON DIOXIDE FROM AIR 28 2009
 
CARBON SINK INC. (16)
8088197 Removal of carbon dioxide from air 22 2006
8715393 ) from air 9 2008
8133305 Removal of carbon dioxide from air 26 2008
* 2009/0120,288 REMOVAL OF CARBON DIOXIDE FROM AIR 48 2008
8262774 English Title Not Available 5 2008
8999279 English Title Not Available 5 2009
8337589 Method and apparatus for extracting carbon dioxide from air 5 2010
8273160 Method and apparatus for extracting carbon dioxide from air 7 2010
8083836 Method and apparatus for extracting carbon dioxide from air 25 2010
8246723 English Title Not Available 4 2011
8221527 English Title Not Available 8 2011
9205372 English Title Not Available 2 2012
9266051 Removal of carbon dioxide from air 2 2013
9616375 Capture of carbon dioxide (CO2) from air 0 2014
9266052 Method and apparatus for extracting carbon dioxide from air 2 2014
9527747 Extraction and sequestration of carbon dioxide 0 2014
 
Kilimanjaro Energy, Inc. (2)
7833328 Laminar scrubber apparatus for capturing carbon dioxide from air and methods of use 31 2009
* 2009/0320,688 Laminar Scrubber Apparatus for Capturing Carbon Dioxide From Air and Methods of Use 10 2009
* Cited By Examiner