EP1108507B1 - Procédé d'extraction solide-liquide aplliquée à des produits en liège - Google Patents

Procédé d'extraction solide-liquide aplliquée à des produits en liège Download PDF

Info

Publication number
EP1108507B1
EP1108507B1 EP20000670010 EP00670010A EP1108507B1 EP 1108507 B1 EP1108507 B1 EP 1108507B1 EP 20000670010 EP20000670010 EP 20000670010 EP 00670010 A EP00670010 A EP 00670010A EP 1108507 B1 EP1108507 B1 EP 1108507B1
Authority
EP
European Patent Office
Prior art keywords
pressure
cork
recipient
gas
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20000670010
Other languages
German (de)
English (en)
Other versions
EP1108507A2 (fr
EP1108507A3 (fr
Inventor
José Manuel Leal Ferreira
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMORIM AND IRMAOS SA
Original Assignee
AMORIM AND IRMAOS SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AMORIM AND IRMAOS SA filed Critical AMORIM AND IRMAOS SA
Publication of EP1108507A2 publication Critical patent/EP1108507A2/fr
Publication of EP1108507A3 publication Critical patent/EP1108507A3/fr
Application granted granted Critical
Publication of EP1108507B1 publication Critical patent/EP1108507B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B1/00—Closing bottles, jars or similar containers by applying stoppers
    • B67B1/03—Pretreatment of stoppers, e.g. cleaning, steaming, heating, impregnating or coating; Applying resilient rings to stoppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K7/00—Chemical or physical treatment of cork
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/10—Extraction of components naturally occurring in wood, cork, straw, cane or reed

Definitions

  • the invention relates to the decontamination of cork products by means of a solid-liquid extraction method based on the successive application of pressure changes on a liquid surface in which the cork is immersed, which causes cork contraction and expansion, thereby causing the release of contaminants entrapped within the cork.
  • Cork is a natural porous product that contains in its surface, and within it, a variety of contaminants derived from its life experience in the forest which, when in contact with liquids, can cause organoleptic changes in those liquids.
  • thermochemical process for the expansion of cork using a pressurised system where cork is immersed in the presence of some organic solvents, namely methanol, ethanol, formic acid, dichloromethane or chloroform .
  • a relative pressure of up to 10 bar is applied on the surface of the liquid, for 1 to 3600 seconds, using any kind of gas or gas mixture. Then, the gas is released until the recipient pressure reaches the atmospheric pressure again. Thereafter the pressure is reduced by means of an appropriate vacuum pump until a relative pressure of up to -1 bar is reached. After being under this reduced pressure for 1 to 3600 seconds the system is caused to return to the atmospheric pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (3)

  1. Méthode d'extraction solide-liquide appliquée à des produits en liège pour leur décontamination, caractérisée en ce qu'elle comprend les phases suivantes:
    a. Mise du produit en liège dans un récipient étanche à l'air,
    b. Remplissage du récipient étanche à l'air avec de l'eau, de telle façon que le produit en liège est complètement immergé dans ce liquide-là,
    c. Application d'une pression relative de jusqu'à 10 bar sur la surface du liquide pendant 1 à 3600 secondes, en employant un gaz adéquat,
    d. Dégagement du gaz pressurisé jusqu'à ce que la pression à l'intérieur du récipient atteint la pression atmosphérique,
    e. Réduction de la pression à l'intérieur du récipient, à l'aide d'une pompe à vide adéquate, jusqu'à atteindre une pression relative de jusqu'à 1 bar, pendant une durée de 1 à 3600 secondes,
    f. Laisser le récipient revenir à la pression atmosphérique.
  2. Méthode selon la revendication précédente, caractérisée en ce que le gaz pressurisé employé pour appliquer de la pression sur la surface du liquide de décontamination est l'air, un gaz autre que l'air ou un mélange de gaz.
  3. Méthode selon les revendications précédentes, caractérisée en ce que le cycle de traitement est répété jusqu'à 100 fois.
EP20000670010 1999-11-16 2000-11-13 Procédé d'extraction solide-liquide aplliquée à des produits en liège Expired - Lifetime EP1108507B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PT10237699 1999-11-16
PT10237699A PT102376A (pt) 1999-11-16 1999-11-16 Processo de extraccao solido-liquido aplicado a produtos de cortica

Publications (3)

Publication Number Publication Date
EP1108507A2 EP1108507A2 (fr) 2001-06-20
EP1108507A3 EP1108507A3 (fr) 2003-12-17
EP1108507B1 true EP1108507B1 (fr) 2010-11-03

Family

ID=20085904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000670010 Expired - Lifetime EP1108507B1 (fr) 1999-11-16 2000-11-13 Procédé d'extraction solide-liquide aplliquée à des produits en liège

Country Status (3)

Country Link
EP (1) EP1108507B1 (fr)
ES (1) ES2355805T3 (fr)
PT (2) PT102376A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002953512A0 (en) * 2002-12-13 2003-01-09 Australian High Pressure Processors Pty Ltd High pressure treatment of cork and oak chips
ES2259547B1 (es) * 2005-02-17 2007-06-01 Jose Luis Godoy Varo Metodo para la descontaminacion de corcho e instalacion para su puestaen practica.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR343350A (fr) * 1904-05-21 1904-10-01 Emile Adnet Stérilisateur pour bouchons, lièges et autres matières poreuses
FR384559A (fr) * 1906-12-07 1908-04-14 Gruenzweig & Hartmann G. M. B. H. Procédé et appareil de traitement du liège par la chaleur
GB267733A (en) * 1926-04-23 1927-03-24 David Allan Low Improvements in or relating to epicyclic and the like toothed wheel gearing
US3560251A (en) * 1965-07-19 1971-02-02 Hager Ab Wood treatment method
NO781826L (no) * 1977-05-31 1978-12-01 Forest Prod Util Lab Fremgangsmaate til trykkimpregnering av tre

Also Published As

Publication number Publication date
ES2355805T3 (es) 2011-03-31
PT1108507E (pt) 2011-02-08
PT102376A (pt) 2001-05-31
EP1108507A2 (fr) 2001-06-20
EP1108507A3 (fr) 2003-12-17

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