Adsorptive separation method

Details Adsorptive separation method Adsorptive separation method

1982-06-01

1984-10-23

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210690, 585805, 585821, 585828, B01D 1500

Patent

active

044787235

ABSTRACT:
An adsorptive separation method capable of effectively separating the desired component from a mixture containing the same at a high purity and a high recovery ratio, and easily coping with scale-up of the apparatus is disclosed. This method comprises alternately supplying a starting mixture A comprising a plurality of substances and a desorbent into a column packed with an adsorbent, treating to form and move an adsorption band of the starting mixture A and recovering the intended component at a purity higher than the aimed purity from an eluate, wherein after the entire amount of the intended component passing through the column is increased over the amount of the intended component in the starting mixture A and the intended component is separated and recovered, the portion B which is at least a part of the remaining intended component-containing portion, and in which the desorbent is separated and removed to a concentration lower than the desorbent concentration in the starting mixture A and the intended component is contained at a concentration higher than the concentration of the intended component in the starting mixture A is mixed with the starting material A and supplied to the column or said portion B and the starting mixture A are supplied to the column one by one, and then, the desorbent is supplied successively.

REFERENCES:
patent: 2985580 (1961-05-01), Broughton et al.
patent: 3416961 (1968-12-01), Mountfort et al.
patent: 3494104 (1970-02-01), Royer
patent: 4022637 (1977-05-01), Sutthoff et al.
patent: 4109075 (1978-08-01), Deaton
patent: 4198295 (1980-04-01), Vajna
High-speed liquid chromatography (T. Kojima, Tokyo Kagaku Dojin, pp. 282-283 & 246-247, 1976) (L. R. Snyder and J. J. Kirkland, Introduction to Modern Liquid Chromatography, John Wiley & Sons, 1974).

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