Novel applications of continuous annular chromatography: Separation of sugars

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6669607

Howard, A J; Carta, G; Byers, C H

Continuous chromatographic separations of fructose-glucose-sucrose mixtures have been investigated experimentally in a laboratory-scale continuous annular chromatograph using Ca-exchanged Dowex 50W-X8 resin as adsorbent. Comparative chromatographic separation studies have also been conducted for the system using a conventional fixed-bed column packed with the same resin. Complete resolution of fructose-glucose mixtures could be obtained both in a 60 cm-long continuous annular chromatograph and in a conventional column of the same length with sugars feed concentration up to 200 g/L. In the four-component mixture blue dextran (higher molecular weight saccharide), sucrose, glucose and fructose complete rsolution of all species except sucrose-glucose under the relatively mild separating conditions tested. The experimental results have been analyzed in terms of approximate linear chromatographic theories for fixed and rotating beds. Bed properties and equilibrium and mass transfer parameters used in the model were obtained through independent experiments. With these parameters a good fit to the experimental results was obtained. Differences in feed mixtures and dispersion characteristics contribute to the minor offset between fixed bed and continuous chromatograph results. 21 refs., 12 figs., 3 tabs.

• Research Organization: Oak Ridge National Lab., TN (USA); Virginia Univ., Charlottesville (USA). Dept. of Chemical Engineering
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6669607
• Report Number(s): CONF-870410-16; ON: DE87007367
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ALDEHYDES
CARBOHYDRATES
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
DATA
DISACCHARIDES
EXPERIMENTAL DATA
FRUCTOSE
GLUCOSE
HEXOSES
INFORMATION
ION EXCHANGE MATERIALS
KETONES
MASS TRANSFER
MATERIALS
MONOSACCHARIDES
NUMERICAL DATA
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
RESINS
SACCHARIDES
SACCHAROSE
SEPARATION PROCESSES
TIME DEPENDENCE