| (19) |
 |
|
(11) |
EP 1 108 507 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
17.12.2003 Bulletin 2003/51 |
| (43) |
Date of publication A2: |
|
20.06.2001 Bulletin 2001/25 |
| (22) |
Date of filing: 13.11.2000 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
Designated Extension States: |
|
AL LT LV MK RO SI |
| (30) |
Priority: |
16.11.1999 PT 10237699
|
| (71) |
Applicant: Amorim & Irmaos S.A. |
|
4535 Santa Maria de Lamas Codex (PT) |
|
| (72) |
Inventor: |
|
- Leal Ferreira, José Manuel
4535 Santa Maria de Lamas Codex (PT)
|
| (74) |
Representative: De Magalhaes Simoes, José Raul |
|
Simoes, Garcia, Corte-Real & Associados - Consultores, Lda. Av. Estados Unidos de
América, No 131,7o-C
1700-173 Lisboa
1700-173 Lisboa (PT) |
|
| |
|
| (54) |
Method of solid-liquid extraction applied to cork products |
(57) The invention relates to a method of solid-liquid extraction applied to cork products
for the decontamination thereof, comprising the following steps:
- a. Introduction of the cork product in a airtight recipient,
- b. Filling the airtight recipient with an appropriated decontamination liquid so that
the cork product is completely immersed in that liquid,
- c. Applying a relative pressure of 0 to 10 bar on the liquid surface, for a time period
of 1 to 3600 seconds, using an appropriated gas,
- d. Release of the pressurising gas until the pressure within the recipient reaches
atmospheric pressure,
- e. Reduction of the pressure within the recipient, by means of an appropriated vacuum
pump, until a relative pressure of 0 bar to - 1 bar is reached, during a time period
of 1 to 3600 seconds,
- f. Returning the recipient to atmospheric pressure.