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Extraction of Fullerene Molecules by Ultrasonic Agitation

IP.com Disclosure Number: IPCOM000108706D
Original Publication Date: 1992-Jun-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 1 page(s) / 25K

Publishing Venue

IBM

Related People

Cuomo, JJ: AUTHOR [+3]

Abstract

Disclosed is a process for extraction of fullerene molecules by ultrasonic agitation.

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Extraction of Fullerene Molecules by Ultrasonic Agitation

       Disclosed is a process for extraction of fullerene
molecules by ultrasonic agitation.

      Carbon soot as produced in the Huffman-Kraetschmer arc method
(*) consists of a variety of fullerene molecules or
'bukminsterfullerene' including C sub 60.  Extraction of fullerene
molecules from this soot is aided by ultrasonic agitation.  The
agitation causes more intimate mixing of solvent liquid with the
carbon powder.

      The technique is more useful than Sohxlet extraction for
extraction of the smaller fullerene molecules, including
C60,C70,C84,C92, with toluene as solvent.  Other higher boiling point
solvents will allow extraction of the larger carbon cage molecules,
aided also by ultrasonic agitation.

      Reference
(*)  W. Kraetschmer, L. D. Lamb, K. Fostiropoulos and D. R. Huffman,
"Solid C60: A New Form of Carbon," Nature 347, 354 (1990).