LIQUID MEMBRANE SEPARATION OF ENANTIOMERS

WIPO Patent Application WO2002018035

A3

The invention is related to a method for separating enantiomers in a supported liquid membrane module by contacting the liquid membrane (7a, 7b) which may contain a carrier and a phase transfer agent with a feed fluid (1) containing a racemic mixture whereby an enantiomer is transported into the liquid membrane (7a, 7b) and thereafter contacting the liquid membrane (7a, 7b) with a sweep fluid (8) whereby an enantiomer is transported from the liquid membrane (7a, 7b) into the sweep fluid (8). The enantiomer is then recovered from the sweep fluid (8, 12). The liquid membrane module is contructed in such a way that the feed fluid (1, 11) and the sweep fluid (8, 12) are adjacent to, but on opposite sides of, the liquid membrane (7a, 7b) and the feed (1, 11) and sweep fluids (8, 12) have a substantially continuous interfacial contact along the length of the liquid membrane (71, 7b).

BHOWN ABHOYJIT SINGH

PCT/US2001/041526

June 20, 2002

August 02, 2001

Click for automatic bibliography generation  

FACILICHEM INC (US)

B01D61/24; B01D61/38; B01D63/04; B01D63/06; C07B57/00; C07C231/20; C07C233/83; (IPC1-7): B01D61/38; C07B57/00

WO1998033581A1	1998-08-06
WO1998010852A1	1998-03-19

US5167824A	1992-12-01
US5080795A	1992-01-14
US5580452A	1996-12-03
US4789468A	1988-12-06

MANDAL D K ET AL: "Isomer separation by a hollow fiber contained liquid membrane permeator", JOURNAL OF MEMBRANE SCIENCE, ELSEVIER SCIENTIFIC PUBL.COMPANY. AMSTERDAM, NL, vol. 144, no. 1-2, 10 June 1998 (1998-06-10), pages 13 - 24, XP004123650, ISSN: 0376-7388
DATABASE WPI Section Ch Week 200024, Derwent World Patents Index; Class A96, AN 2000-283785, XP002191184

View/Download PDF      PDF Help

Previous Patent: METHOD FOR NO¿X? REGENERATION OF AN NO¿X? STORAGE CATALYST

Next Patent: GAS VENT FILTER CONSTRUCTION INCORPORATING A HOLLOW FIBER MEMBRANE ASSEMBLY