Patent ID: 6106724
Filing Date: 2000-08-22
Classification: B01D,B01J

Abstract:
A process for separating at least one chiral compound from a mixture of chiral compounds comprising adsorbing said chiral compound on a chiral stationary phase and eluting the adsorbed chiral substance using an achiral solvent, characterized in that the chiral stationary phase comprises a chiral organic material deposited on an amorphous, large pore silica of surface area less than about 30 m.sup.2 /g and having a unimodal pore size distribution with a median pore size in the range of about 300 .ANG. to about 25,000 .ANG., at least about 10% of Q3 silanols as measured by nuclear magnetic resonance spectroscopy, and less than about 0.5% of Q2 silanols as measured by nuclear magnetic resonance spectroscopy.