Process for the preferential separation of dextrose from oligosa

Details Process for the preferential separation of dextrose from oligosa Process for the preferential separation of dextrose from oligosa

1981-10-19

1983-03-08

Demers, Arthur P.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

127 42, 127 53, 127 63, 127 463, 204301, B01D 1302

Patent

active

043760236

ABSTRACT:
This invention describes the process of separating dextrose preferentially from a mixture of dextrose and oligosaccharides by using ion exchange membranes. More particularly it relates to the process comprising the steps of (1) passing a liquid mixture of dextrose and oligosaccharides through a first feed chamber of an electro-osmosis cell comprising at least two chambers defined between ion exchange membranes having alternating high and low permeability coefficients with respect to each other, (2) passing a direct electric current transversely through said membranes and chambers in a direction to cause the dextrose to pass from said feed chamber through said high permeability coefficient membrane into a second chamber with said dextrose being substantially retained in the second chamber, and (3) recovering an oligosaccharide enriched and a dextrose enriched effluent from the separate chambers.

REFERENCES:
patent: 3290173 (1966-12-01), Marino
patent: 3383245 (1968-05-01), Scallet
patent: 3475216 (1969-10-01), Walon
patent: 3525682 (1970-08-01), McCrae et al.
patent: 3666647 (1972-05-01), Kubo et al.
patent: 3718560 (1973-02-01), Sugiyama et al.
patent: 3781174 (1973-12-01), Nishijima et al.
patent: 3799806 (1974-03-01), Madsen
patent: 4299677 (1981-11-01), Venkatsubramanian

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