EP0395010A1 - Verfahren und Vorrichtung zum Geruchlosmachen von Kork - Google Patents

Verfahren und Vorrichtung zum Geruchlosmachen von Kork Download PDF

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Publication number
EP0395010A1
EP0395010A1 EP90107858A EP90107858A EP0395010A1 EP 0395010 A1 EP0395010 A1 EP 0395010A1 EP 90107858 A EP90107858 A EP 90107858A EP 90107858 A EP90107858 A EP 90107858A EP 0395010 A1 EP0395010 A1 EP 0395010A1
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EP
European Patent Office
Prior art keywords
cork
deodorization
steam
set forth
container
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.)
Granted
Application number
EP90107858A
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English (en)
French (fr)
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EP0395010B1 (de
Inventor
Ichiro Konishi
Ryoichi Tajima
Tetsuo Tsutsumi
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.)
Uchiyama Manufacturing Corp
Suntory Ltd
Original Assignee
Uchiyama Manufacturing Corp
Suntory Ltd
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 Uchiyama Manufacturing Corp, Suntory Ltd filed Critical Uchiyama Manufacturing Corp
Publication of EP0395010A1 publication Critical patent/EP0395010A1/de
Application granted granted Critical
Publication of EP0395010B1 publication Critical patent/EP0395010B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 present invention relates to removing offensive odors from cork. Specifically, the present invention relates to removing 2,4,6-trichloroanisole (TCA) which has a characteristic odor.
  • TCA 2,4,6-trichloroanisole
  • Cork has unique characteristics. It is lightweight and has a high degree of resilience. Additionally, it has excellent gas and liquid sealing properties, and has stability against solvents such as alcohol. Furthermore, it is hygienic material which is food-safe and not harmful to human beings, and has no intrinsic odor.
  • cork has been widely utilized as stoppers for casings such as bottles filled with liquor such as wine, brandy or whiskey, or casings packed with various kinds of foods.
  • TCA 2,4,6-trichloroanisol
  • Cork is heated and dried at 80 o C for 6 to 8 hours, after which the offensive odor causing substances are substantially evaporated.
  • TCA is specifically adsorbed by the macromolecular compounds which form cork such as cellulose, lignin and suberin, and it is difficult to remove TCA in the dried state.
  • the boiling point of TCA is 240 o C at 738.2 mmHg, and 132 o C at 28 mmHg. Therefore, in order to evaporate TCA, a heating temperature must be applied which is higher than the boiling point of TCA.
  • Cork is heated at 80 o C for 6 hours, and is then left at room temperatures for about a month.
  • TCA can removed by repeating this treatment many times.
  • this method requires a long periods of treatment until the TCA is entirely removed, therefore, production efficiency is low. (2 or 3 repetitions of the above treatment is insufficient for entirely removing TCA).
  • Cork is deodorized by being soaked in a 3 vol% solution of citric acid for 3 to 5 min.
  • the effects of this deodorization technique are retained only for a short period. That is because, as cork resists absorption of liquids, the citric acid solution cannot reach the cork internal. Therefore, the deodorizing treatment affects only the cork surface, untreated TCA within the cork is moved to the cork surface with the elapse of time, thus the offensive odor re-occurs.
  • Cork is deodorized and sterilized by soaking in a 1 vol% solution of hydroperoxide (H2O2).
  • H2O2 hydroperoxide
  • Cork is left and deodorized in alcohol atmosphere at 18 to 24 o C for a month.
  • this method encounters the same problems as methods (3) and (4).
  • Cork in the grain state is washed in hot water at a temperature of 60 o C.
  • the treatment needs to be repeated 2 times. But, as TCA has a relatively strong affinity for cork, it is moved to and retained in the internal portions of the cork. According to this method, therefore, the deodorizing effect is still insufficient because the treatment affects only the cork surface.
  • TCA in the cork is extracted by Soxhlet extractor at 45 o C for 24 hours with n-pentane.
  • TCA is entirely removed from both the surface and internal areas of the cork.
  • the equipment is very expensive and production costs become very high.
  • a certain degree of safety risk is encountered with this method.
  • German Patent First Publication No. 34 05 422 discusses that cork is sterilized with ozoned water or ozonized silicone emulsion, in which the ozonized concn. being Pl mg/l at a temperature lower than 30 o C.
  • the principal object of the present invention to provide a method for deodorizing cork by removing substance causing offensive odors, principally TCA from the cork internal.
  • a method for deodorization of cork comprises the step of applying steam distillation to the cork to remove a substance originating offensive odor in the cork, temperature and pressure of steam for deodorization treatment is so selected as to penerate steam molecule into internal structure of cork.
  • a method for removing a substance originating offensive odor in the cork comprising the steps of: a first step of putting the cork into a container, a second step of supplying steam to the container for generating steam flow at a given temperature and a given pressure, the temperature and pressure being selected for penetrating steam molecule into internal structure of cork and promoting steam distillation within the internal structure of cork, a third step of discharging the steam past the cork and containing the substance originating offensive odor, from the container.
  • the substance originating offensive odor may be 2,4,6-trichloroanisole, which may be precursor of 2,4,6-trichloroanisole.
  • the method further comprises the steps of: cutting the cork into pieces having a predetermined size, pre-heating the cut cork to a certain temperature, and maintaining the temperature and the pressure during deodorizaion.
  • the steam temperature is at least 100 o C; the system pressure is at least 760 mmHg.
  • the second step further comprises supplying the steam for the cork from the bottom of the container.
  • the second step may further comprise agitating the container.
  • the agitating step is comprised of rotating and/or oscillating the container.
  • the agitating step may comprise of stirring the cork in the container.
  • the method may further comprise a step of cooling the cork in the container.
  • the cooling step is may includes the steps of: generating a hot atmosphere, supplying the hot atmosphere to the interior of the container while maintaining rotation and oscillation of the container.
  • supplying atmosphere is performed after natural cooling and at a timing where cooling efficiency by natural cooling is lowered.
  • an apparatus for deodorization of cork by steam distillation comprises: means for generating a flow of stream at a given temperature and a given pressure which are selected for causing steam distillation within the internal structure of the cork to remove a substance originating offensive odor, contained in the cork.
  • an apparatus for deodorization of cork comprises: first means for containing the cork, second means for supplying steam from a steam generator for forming a steam flow from an inlet to an outlet of the first means, the steam in the steam flow being maintained at a given temperature and a given pressure selected for removing a substance causing offensive odor from the cork, third means for discharging the steam along with the substance causing offensive odor through the outlet of the first means.
  • the present invention is accomplished by utilizing conventional steam distillation.
  • the cork has a water resistive property to prevent water molecule from penetrating into the internal structure thereof. Therefore, though it is known that TCA on the surface of the cork surface can be washed out by water, internally contained TCA cannot be removed by water. To this point, it has been known that TCA has a characteristic which is that it can volatirized with steam. Additionally, it has relatively low boiling point at 28 mmHg. Therefore, if treating temperatures are controlled at the level at which the partial pressure of TCA becomes 28 mmHg, TCA can be evaporated at relatively low temperatures. Taking the factors mentioned above into consideration, the inventors became aware that steam distillation may be effectively utilized for the deodorization of cork.
  • steam distillation had never been applied for cork deodorization.
  • steam temperature and pressure is very important factor for enabling steam distillation.
  • the steam is enabled to penerate into the internal structure of the cork for heating the internal structure so that steam distillation is caused within the internal structure for removing TCA residing inside of the cork.
  • cork Any kind of cork may be used and is not limited by the field of use to which it is put nor by its form.
  • cork for bottle capping, wine bottle stoppers or crown disks, for architectural use, vibration proofing or heat insulator materials may all benefit from treatment according to the present invention.
  • the shape of the first means is not limited specifically, but for effective steam utilization, a longitudinal shape the container of which is formed with a diameter smaller than its height is most preferred.
  • any state of cork is acceptable, but for enhancing the removal efficiency by homogenizing steam and cork, maintaining the cork in an agitated state while supplying steam to the first means is preferable.
  • For agitating to move the container per se (e.g., oscillating or rolling) or to locate agitating means in the container of the first means to stir the inner materials are both acceptable.
  • the steam temperature should be at least 100 o , and, the pressure at least 760 mmHg, and the amount of fluid at least 0.1 liter against 1 liter of cork.
  • the steam temperature is lower than 100 o C, partial pressure cannot be high enough to cause steam distillation within the internal organization of the cork. Also at the temperature lower than 100 o C, penetration of steam molecule into the internal structure of cork may not be sufficient.
  • the steam temperature is higher than 130 o C, difficulty is encountered in controlling temperature during cooling process. That is at high steam temperature, significant amount of steam can be penetrated within the internal structure.
  • the steam penetrated within the internal structure of the cork may lead shrinking of the cork when it is subjected atomospheric temperature which may results in rapid cooling.
  • Siginificant magnitude of shrinkin of cork may degradation of the property of cork. Therefore, the temperature has to be maintained to be lower than or equal to 130 o C.
  • Cork size is not limited specifically, but a smaller size is preferred because TCA movement from within the cork to its surface becomes easier. This results effective removal of TCA.
  • treatment temperature the treatment temperature, the system pressure, container configuration cork amount to be treated and other conditions for steam distillation treatment can be selected according to required efficiency and degree of removal of TCA.
  • the partial pressure of TCA can be reduced by the partial pressure of steam, then the boiling point of TCA can be lowered at around atmospheric pressure. Therefore, deterioration of cork can be avoided and deodorization of cork (removal of TCA) can be accomplished sufficiently.
  • FIG. 1 a block diagram showing the method for removing offensive odor according to the present invention is shown.
  • a given amount of cork 2 cut to a predetermined size is put into a treating container 1 .
  • Purified water provided from a purified water generator 4 is supplied to a steam generator 3 .
  • steam is generated in the generator 3 , it is supplied to the container 1 via a steam supply pipe 5 .
  • Steam distillation of the cork 2 is performed in the container 1 , then steam is discharged from the container 1 through a steam discharge pipe 6 out of the system.
  • Steam feeding is controlled by a supply valve 7 , a flow meter 8 , pressure meters 9 , and 10 , a discharge valve 11 , and a flow control valve 12 .
  • Temperature sensors 13 , 14 and 15 are installed in the upper, middle and lower ports of container 1 , respectively. The temperature in the container 1 is monitored through these sensors by a monitor system 16 , then temperature is controlled at the constant predetermined level.
  • the container 1 has an outer container 17 and an inner container 18 spaced from the outer container 17 at a constant interval as shown in Fig. 2 . It may be formed as a cylinder. In this way, the container 1 is formed as a pressure proof container having a double-walled structure. This structure enables steam to be introduced into the space between the outer and the inner wall after it goes through the cork 2 . Therefore, steam in the space through which the steam past the cork flows, serves for maintaining the container temperature at the desired treatment temperature and thus for reducing the heat loss in the steam
  • Fig. 2 when amounts of cork 2 are put into the inner container 18 by opening a lid 19 , they pile on a bottom plate 20 . Steam is sprayed into the interior of the container 1 through a plurality of steam pores 21 penetrating the bottom plate 20 , and runs through the piled cork 2 from bottom to top.
  • a steam inlet pipe 22 is connected to the center port of the container's bottom and extends from the lower end of the outer container 17 of the container 1 to the outside of the container.
  • the lower edge of the inlet pipe 22 is connected to the steam supply pipe 5 via a first rotary joint 23 .
  • Steam fluid supplied from the supply pipe 5 is supplied to the inlet pipe 22 , to the inner container 18 via the steam spraying pores 21 in the bottom plate 20 of the container 1 .
  • a central shaft 28 for rotation is located surrounding the outlet pipe 26 , and is rotatably supported by a bottom portion 30a of an oscillating frame 30 formed in U-shape via a bearing 29 .
  • the container 1 can be rotated against the central shaft by a rotation drive device 31 installed on the bottom portion 30a of the oscillating frame 30 composed of a motor, rotation gear, translation gear or so forth. Additionally, the container 1 can be oscillated by the oscillating frame 30 . Then, by rotating with oscillation, the cork 2 and steam in the container 1 can be agitated sufficiently.
  • a pair of supporting shafts 32 , and 33 are installed to an outer surface of an upper end of side portions 30b of the oscillating frame 30 .
  • These shafts 32 , 33 are oscillatably supported by a pair of fixed frames 36 , 37 via bearings 34 , 35 to be oscillated by an oscillation drive device 38 .
  • the oscillation drive device 38 is composed of a worm wheel 39 installed on the supporting shaft 33 and a motor 42 which rotatably operates a worm gear 40 via belt 41 , where the worm gear 40 is engaged to gear teeth of the worm wheel 39 .
  • the motor 42 is rotated in one direction, the worm gear 40 and the worm wheel 39 are rotated in order. This rotation slowly oscillates the oscillating frame 30 in one direction.
  • the motor 42 is rotated in the other direction, it slowly rotates the oscillating frame 30 in the other direction. In this way, the oscillating frame 30 is oscillated.
  • the steam supply pipe 5 is located through the center portion of the supporting shaft 33 , connected to the oscillating frame 30 via a third rotary joint 43 , and further connected to the container 1 via the first rotary joint 23 .
  • the steam discharge pipe 6 is located through the center portion of the other supporting shaft 32 , connected to the oscillating frame 30 via a forth rotary joint 44 , and further connected to the container 1 via the second rotary joint 27 .
  • a slip ring 45 is mounted on the edge of the central shaft 28 of the container 1 . Signals, obtained from temperature sensors 13 , 14 and 15 , connected to the outside portion of the oscillating frame 30 via the slip ring 45 , are input to a monitoring device 16 which is connected to the slip ring 45 (as shown in Fig. 1 ) allowing the temperature in the container to be effectively monitored.
  • Circular frames 46 are mounted on the top of the side portion 30b of the oscillating frame 30 .
  • Rollers 47 are installed in the inner surface of the radial frames 46 to rotate the container 1 smoothly by supporting the outer surface of the upper port of the container 1 .
  • rotation speed of the container is preferably determined at, at least, 10 rpm, and the incline angle is preferably determined as at least ⁇ 60 o , though they depend on conditions such as the processing amount and cork size.
  • the inclination angle range of the container is not strictly limited to ⁇ 60 o but can be selected in any way.
  • the inclination angle of the container may be determined according to the degree of filling of the cork within the interior space of the container. Namely, the inclination angle is so selected that the cork can be distributed over entire area of the steam path so that steam cannot escape without contacting with cork.
  • driving speed in rolling and agitation may be determined according to the amount of the cork filled in the container.
  • the cork In order to avoid physically changing the cork, for example, shrinking, it may be preferable to cool the cork with maintaining the same within the container 1, slowly. Because cork volume becomes smaller (shrunken) when it subject substantially low temperature after penetration of steam of relatively high temperature. Particularly, since the temperature of the internal structure of cork cannot be cooled as that on the surface, relatively long period is required for satisfactorily cool the internal structure of the cork. This means that if they are removed from the container immediately to subject atmosphere, substantial magnitude of shrinking may be caused in the cork to make it stiff to degrade cork property. On the other hand, allowing natural cooling takes a very long time. Therefore, supplying a hot atmosphere to the container by way of cooling may be effective.
  • Treatment indicates steam distillation. Test conditions Flow amount of steam : 280 l/hr. Period of treatment : 64 min. Pressure (cage pressure): 1 kg/cm.
  • the penetration degree is exponentially increased according to rising of the steam temperature.
  • Cork capping plug recognized as corked was crushed by a known cork crushing machine into a grain size ordinarily used for forming compressed cork, for forming sample cork pieces. 4g of the sample cork pieces were put in a gauze bag (15 cm x 20 cm). The sample cork containing bag is put in the mid portion of the cork burden in the container 1 .
  • Deodorization treatment was performed utilizing the apparatus of Fig. 2 . In the treatment, the container 1 was rolled with sccessive variation of inclination angle. The steam was flown through the container 1 across the cork in a flow rate of 20 liter/hour and 40 liter/hour. The deordorization treatment was performed for 30 minutes, 60 minutes and 90 minutes after reaching predetermined condition, i.e.
  • the present invention is successful in achieving the object and advantages sought therefor.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Treating Waste Gases (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
EP90107858A 1989-04-26 1990-04-25 Verfahren und Vorrichtung zum Geruchlosmachen von Kork Expired - Lifetime EP0395010B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP106781/89 1989-04-26
JP10678189 1989-04-26

Publications (2)

Publication Number Publication Date
EP0395010A1 true EP0395010A1 (de) 1990-10-31
EP0395010B1 EP0395010B1 (de) 1994-02-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107858A Expired - Lifetime EP0395010B1 (de) 1989-04-26 1990-04-25 Verfahren und Vorrichtung zum Geruchlosmachen von Kork

Country Status (12)

Country Link
EP (1) EP0395010B1 (de)
JP (1) JP2673382B2 (de)
AT (1) ATE101817T1 (de)
AU (1) AU630444B2 (de)
CA (1) CA2015419C (de)
DE (2) DE4013219A1 (de)
DK (1) DK0395010T3 (de)
ES (2) ES2019562A6 (de)
FR (1) FR2646372B1 (de)
GB (1) GB2230956B (de)
IT (1) IT1240633B (de)
PT (1) PT93857B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782289A1 (fr) * 1998-08-11 2000-02-18 Pernod Ricard Procede de traitement de produit a base de liege utilisable pour la realisation de bouchons et bouchons comprenant un tel produit traite
FR2798879A1 (fr) * 1999-09-27 2001-03-30 Commissariat Energie Atomique Procede de traitement, et d'extraction de composes organiques du liege, par un fluide dense sous pression
WO2003041927A1 (en) * 2001-11-12 2003-05-22 Instituto Superior Técnico New process for treating cork stoppers or planks for the reduction of strange aromas, namely 2,4,6-trichoroanisole
WO2005025825A1 (de) * 2003-09-10 2005-03-24 Degussa Ag Verfahren zur extraktion von korkhaltigem material

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7010956B2 (en) * 2003-11-05 2006-03-14 Michael S. Head Apparatus and method for detecting an analyte
JP4504754B2 (ja) * 2004-07-21 2010-07-14 洋二 木方 コルク粉末含有リグノセルロース系成形用粉末材料およびその成形体
ES2259547B1 (es) * 2005-02-17 2007-06-01 Jose Luis Godoy Varo Metodo para la descontaminacion de corcho e instalacion para su puestaen practica.
JP4626713B2 (ja) * 2008-10-20 2011-02-09 株式会社高瀬文夫商店 木製食品容器の脱臭・脱色の処理方法
DE102009041870B4 (de) 2009-09-16 2013-02-28 Klaus-Dieter Heun Sanitärmodul
ES2423255B1 (es) 2012-03-13 2014-10-01 Universidad De Salamanca Procedimiento para la eliminación de haloanisoles y halofenoles presentes en el corcho e instalación para llevar a cabo dicha eliminación
ES2726598B2 (es) 2018-04-05 2020-06-25 Escor Processos Lda Dispositivo y procedimiento para la reduccion del tca en productos de corcho
ES2958166A1 (es) * 2022-07-06 2024-02-02 Univ La Rioja Método de tratamiento con agua activada por plasma de materiales auxiliares de origen forestal para la conservación del vino y uso del agua activada por plasma

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE264305C (de) *
DE267733C (de) * 1906-12-07 1913-11-15 Gruenzweig & Hartmann Verfahren zur Behandlung von Kork durch Hitze
DE557849C (de) * 1931-01-10 1932-08-29 Gruenzweig & Hartmann G M B H Verfahren zur Herstellung von expandiertem Korkschrot

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE176526C (de) *
AT28312B (de) * 1904-06-12 1907-05-10 Hugo Gronwald Verfahren zum Sterilisieren und Konservieren von Flaschenkorken u. dgl.
DE689147C (de) * 1932-01-08 1940-03-12 Franz Lautenschlaeger Vorrichtung zur Sterilisation und Desinfektion von Verbandsmaterial o. dgl. mittels gespannten Dampfes
GB661453A (en) * 1949-10-04 1951-11-21 Vendo Co Steam cooker
GB993883A (en) * 1961-03-04 1965-06-02 Electrolux Ab Improvements in sterilisation autoclaves
DE1492364A1 (de) * 1963-07-18 1970-02-05 Irons Alexander S Sterilisationsverfahren und Sterilisator
SE417328B (sv) * 1978-01-16 1981-03-09 Fazer Ab Forfarande for deodorisering av kakaosmor i en tunnskiktsindustare vilket fett dessforinnan kontinuerligt homogeniserats tillsammans med avjoniserat eller destillerat vatten

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE264305C (de) *
DE267733C (de) * 1906-12-07 1913-11-15 Gruenzweig & Hartmann Verfahren zur Behandlung von Kork durch Hitze
DE557849C (de) * 1931-01-10 1932-08-29 Gruenzweig & Hartmann G M B H Verfahren zur Herstellung von expandiertem Korkschrot

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782289A1 (fr) * 1998-08-11 2000-02-18 Pernod Ricard Procede de traitement de produit a base de liege utilisable pour la realisation de bouchons et bouchons comprenant un tel produit traite
WO2000009304A1 (fr) * 1998-08-11 2000-02-24 Pernod Ricard Procede de traitement pour materiau en liege et bouchons de liege
AU752164B2 (en) * 1998-08-11 2002-09-05 Pernod-Ricard Method for treating cork material and cork stoppers
US6572818B1 (en) 1998-08-11 2003-06-03 Pernod Ricard Process for treating cork material and cork stoppers
FR2798879A1 (fr) * 1999-09-27 2001-03-30 Commissariat Energie Atomique Procede de traitement, et d'extraction de composes organiques du liege, par un fluide dense sous pression
WO2001023155A1 (fr) * 1999-09-27 2001-04-05 Commissariat A L'energie Atomique Procede de traitement et d'extraction de composes organiques du liege, par un fluide dense sous pression
US7192490B1 (en) 1999-09-27 2007-03-20 Commissariat A L'energie Atomique Method for treating and extracting cork organic compounds, with a dense fluid under pressure
US7332042B2 (en) 1999-09-27 2008-02-19 Commissariat A L'energie Atomique Process for treatment and extraction of organic cork compounds by a dense fluid under pressure
WO2003041927A1 (en) * 2001-11-12 2003-05-22 Instituto Superior Técnico New process for treating cork stoppers or planks for the reduction of strange aromas, namely 2,4,6-trichoroanisole
WO2005025825A1 (de) * 2003-09-10 2005-03-24 Degussa Ag Verfahren zur extraktion von korkhaltigem material

Also Published As

Publication number Publication date
PT93857B (pt) 1996-10-31
ES2019562A6 (es) 1991-06-16
ES2051405T3 (es) 1994-06-16
AU5388190A (en) 1990-11-08
PT93857A (pt) 1990-11-20
AU630444B2 (en) 1992-10-29
FR2646372B1 (fr) 1994-02-11
JP2673382B2 (ja) 1997-11-05
EP0395010B1 (de) 1994-02-23
GB2230956A (en) 1990-11-07
DK0395010T3 (da) 1994-05-09
GB9009274D0 (en) 1990-06-20
ATE101817T1 (de) 1994-03-15
DE69006767D1 (de) 1994-03-31
DE4013219A1 (de) 1990-11-22
CA2015419C (en) 1999-11-16
IT9020121A1 (it) 1991-10-24
FR2646372A1 (fr) 1990-11-02
IT1240633B (it) 1993-12-17
IT9020121A0 (it) 1990-04-24
CA2015419A1 (en) 1990-10-26
GB2230956B (en) 1992-09-09
JPH0347701A (ja) 1991-02-28
DE69006767T2 (de) 1994-06-01

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