Global Patent Index - EP 1257413 A1

EP 1257413 A1 2002-11-20 - METHOD FOR EXTRACTING LIQUID FROM A CELLULAR MATERIAL AND DEVICES THEREFOR

Title (en)

METHOD FOR EXTRACTING LIQUID FROM A CELLULAR MATERIAL AND DEVICES THEREFOR

Title (de)

VERFAHREN FÜR DIE EXTRAKTION EINER FLÜSSIGKEIT AUS EINEM ZELLULAREN MATERIAL UND VORRICHTUNGEN ZUR DURCHFÜHRUNG DIESES VERFAHRENS

Title (fr)

PROCEDE D'EXTRACTION DE LIQUIDE D'UN MATERIAU CELLULAIRE ET DISPOSITIFS DE MISE EN OEUVRE DUDIT PROCEDE

Publication

EP 1257413 A1 (FR)

Application

EP 01907847 A

Priority

  • FR 0100490 W
  • FR 0002159 A

Abstract (en)

[origin: WO0162482A1] The invention concerns a method for extracting liquid from a cellular material which consists in subjecting the cellular material (50) to the combined action of mechanical pressing and a treatment with a pulsed electric field of moderate power applied by short and repeated high voltage pulse bursts. The invention also concerns devices for implementing the extraction method, in particular a filter press device comprising juxtaposed plates (10) defining between them at least a chamber (20) with filtering side walls each internally bordered by a grid forming electrode (22). The invention is characterised in that the two electrodes of each chamber (20) are connected to a pulsed electric field (40) capable of sending short and repeated high voltage pulses.

IPC 1-7 (main, further and additional classification)

B30B 9/04; B01D 35/06; B30B 9/12; B30B 9/24

IPC 8 full level (invention and additional information)

B01D 25/164 (2006.01); B01D 33/04 (2006.01); B01D 35/06 (2006.01); B30B 9/04 (2006.01); B30B 9/12 (2006.01); B30B 9/24 (2006.01)

CPC (invention and additional information)

B30B 9/24 (2013.01); B01D 25/164 (2013.01); B01D 25/215 (2013.01); B01D 25/285 (2013.01); B01D 33/042 (2013.01); B01D 33/58 (2013.01); B01D 33/646 (2013.01); B01D 35/06 (2013.01); B30B 9/04 (2013.01); B30B 9/12 (2013.01); B30B 9/124 (2013.01)

Citation (search report)

See references of WO 0162482A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0162482 A1 20010830; AU 3572101 A 20010903; EP 1257413 A1 20021120; FR 2805199 A1 20010824; FR 2805199 B1 20020621

INPADOC legal status


2004-02-25 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20030809

2003-03-19 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030129

2002-11-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020813

2002-11-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-11-20 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI