Method and equipment for continuous and selective inclusion...

Details Method and equipment for continuous and selective inclusion... Method and equipment for continuous and selective inclusion...

2006-04-18

2006-04-18

Wilson, James O. (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S046000, C536S123100, C536S124000, C536S122000, C536S127000, C149S002000, C510S207000, C514S338000, C585S865000

Reexamination Certificate

active

07030237

ABSTRACT:
In a reaction system having at least two liquid-liquid interfaces between an organic phase of raw material containing a compound(s) to be separated and an aqueous phase of an aqueous solution of inclusion-complexing agent and between that aqueous phase and an organic phase(s) of extraction solvent(s), the compound(s) to be separated is entrapped into the aqueous phase through formation of an inclusion complex(es) of the inclusion-complexing agent with the compound(s), while the compound(s) is entrapped into the organic phase(s) of extraction solvent(s) through dissociation of said inclusion complex(es). The foregoing operation is performed using, for example, a squarish U-shaped tube or an H-shaped tube with bottom plates. Preferred examples of inclusion-complexing agent include highly water-soluble branched cyclodextrins.

REFERENCES:
patent: 5095173 (1992-03-01), Uemasu et al.
patent: 5177302 (1993-01-01), Uemasu et al.
Armstrong et al. “Enrichment of Enantiomers and other isomers with aqueous liquid membranes containing cyclodextrin carriers.” Anal Chem. 59, 2237-2241, 1987.
Katsutoshi Nagai and Hans-Georg Elias; “Polymerization of Micellized 1-O-3-(4-vinylphenyl)propyl-β-D-glucopyranose”; Markromol. Chem. 188, 1095-1127 (1987).
Jian Wang and Islah M. Warner; “Chiral Separations Using micellar Electrokinetic Capillary Chromatography and a Polymerized Chiral Micelle”; Anal. Chem. 1994, 66, 3773-3776.
Daniel W. Armstrong and Heng L. Jin; “Enrichment of Enantiomers and Other Isomers with Aqueous Liquid Membranes Containing Cyclodextrin Carriers” Anal. Chem. 1987, 59, 2237-2241.

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