Title:
METHOD OF EXCHANGING ANIONS OF TETRAALKYLAMMONIUM SALTS
Document Type and Number:
WIPO Patent Application WO2005097730
Kind Code:
A3
Abstract:
A method of converting a tetraalkylammonium salt of a first anion to a tetraalkylammonium salt of a second anion is described which involves forming a solution comprising the tetraalkylammonium salt of the first anion in a solvent which includes water and a polar organic co-solvent, contacting the solution with an ion exchange resin in the form of the second anion and forming a tetraalkylammonium salt of the second anion in solution and an ion exchange resin complexed with the first anion. The solution containing the tetraalkylammonium salt of the second anion can be recovered.
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Inventors:
SAUER JOE D (US)
KNIGHT CHRISTOPHER J (US)
EVERLY CHARLES R (US)
KNIGHT CHRISTOPHER J (US)
EVERLY CHARLES R (US)
Application Number:
PCT/US2005/010168
Publication Date:
January 12, 2006
Filing Date:
March 25, 2005
Export Citation:
Assignee:
ALBEMARLE CORP (US)
SAUER JOE D (US)
KNIGHT CHRISTOPHER J (US)
EVERLY CHARLES R (US)
SAUER JOE D (US)
KNIGHT CHRISTOPHER J (US)
EVERLY CHARLES R (US)
International Classes:
A61K31/14; C07C211/63; (IPC1-7): C07C209/00
Other References:
LEWIS SR.: "Hawley's Condensed Chemical Dictionary.", 1997, VAN NOSTRAND REINHOLD., pages: 616 - 617, XP008077239
See also references of EP 1730098A4
See also references of EP 1730098A4
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