Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1995-11-13
1998-06-09
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
560249, C07C 6748
Patent
active
057636451
ABSTRACT:
A process for recovering and reusing a solvent and optical isomers, characterized by using a simulated moving packed bed which comprises an inlet for an eluent, an outlet for an extract containing an optical isomer strongly adsorbable on the packing, an inlet for a liquid containing an optical isomer mixture and an outlet for a raffinate containing an optical isomer weakly adsorbable on the packing in this order in a packed bed containing packings for optical resolution and arranged in a solvent circulation passage, and in which the inlets and the outlets are intermittently and successively moved in the direction of liquid flow in the packed bed; recovering the solvent and the optical isomer(s) from the resultant extract and/or raffinate; returning the recovered solvent into the solvent circulation passage; or when the solvent is not recovered, heating the extract or raffinate to racemize an undesired optical isomer and reusing the resultant solution containing a racemic modification for the separation of the optical isomers with the simulated moving bed system.
REFERENCES:
patent: 5498752 (1996-03-01), Negawa
Negawa Masakazu
Shoji Fumihiko
Daicel Chemical Industries Ltd.
Dees Jos,e G.
Vollano Jean F.
LandOfFree
Process for recovering optical isomers and solvent process for u does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for recovering optical isomers and solvent process for u, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for recovering optical isomers and solvent process for u will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2201174