EP 1183085 A1 20020306 - METHOD FOR CRYSTALLIZING AN AQUEOUS SOLUTION
Title (en)
METHOD FOR CRYSTALLIZING AN AQUEOUS SOLUTION
Title (de)
VERFAHREN ZUR KRISTALLISATION EINER WÄSSERIGEN LÖSUNG
Title (fr)
PROCEDE DE CRISTALLISATION D'UNE SOLUTION AQUEUSE
Publication
Application
Priority
- FR 0001394 W 20000522
- FR 9906769 A 19990528
Abstract (en)
[origin: FR2794031A1] The invention relates to a method for crystallizing an aqueous solution. According to the invention, said method consists in the following steps: at least one surfactant is initially added to the aqueous solution if the aqueous solution does not at least already contain one natural surfactant; the volume of the medium is subsequently swollen to form foam, whereupon crystallization occurs in a structured medium in the form of foam and said structured medium is used as a provisional material support for crystals undergoing a process of formation, after which the crystals or agglomerates of crystals are recovered by destructuring said foam.
IPC 1-7
IPC 8 full level
B01D 9/00 (2006.01)
CPC (source: EP)
B01D 9/00 (2013.01); B01D 9/005 (2013.01)
Citation (search report)
See references of WO 0072934A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2794031 A1 20001201; FR 2794031 B1 20020405; AU 4930000 A 20001218; EP 1183085 A1 20020306; WO 0072934 A1 20001207
DOCDB simple family (application)
FR 9906769 A 19990528; AU 4930000 A 20000522; EP 00931332 A 20000522; FR 0001394 W 20000522