Patent ID: 7749390

Claim:
A chromatographic quasi-continuous process for separating binary and multisubstance mixtures in a unit formed of a plurality of individual columns bonded to one another in a direction X, wherein a two-dimensional separation is achieved by a in step 1 of a period p, supplying the feed in a column m and supplying an eluent stream in a direction Y to the other columns, b in step 2 of the period p, flowing an eluent stream through the bonded columns in the direction X and forming a circulation stream, c in step 1 of the period p+1, supplying further feed in the column m+1 and supplying further eluent stream in direction Y to the other columns, d in step 2 of the period p+1, again flowing an eluent stream through the bonded columns in the direction X and forming a circulation stream, e repeating a) to d) continuously.