EP1253238A2 - Verfahren zum Beladen von Fasern - Google Patents
Verfahren zum Beladen von Fasern Download PDFInfo
- Publication number
- EP1253238A2 EP1253238A2 EP02002837A EP02002837A EP1253238A2 EP 1253238 A2 EP1253238 A2 EP 1253238A2 EP 02002837 A EP02002837 A EP 02002837A EP 02002837 A EP02002837 A EP 02002837A EP 1253238 A2 EP1253238 A2 EP 1253238A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- carbon dioxide
- fiber
- exhaust gas
- fiber loading
- loading process
- 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.)
- Withdrawn
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/70—Inorganic compounds forming new compounds in situ, e.g. within the pulp or paper, by chemical reaction with other substances added separately
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
Definitions
- the invention relates to a method for loading in a Fibrous suspension containing fibers with an auxiliary through chemical precipitation reaction that is triggered by the addition of carbon dioxide.
- Pulp for the production of paper and cardboard is used in the paper machine upstream fiber preparation so processed that the desired Paper properties such as mechanical properties, optical Properties etc. can be achieved.
- Additives, e.g. Fillers are added.
- Loading with an additive can be carried out, for example, by a chemical precipitation reaction, ie in particular by a so-called “Fiber Loading TM” process, as is described, inter alia, in US Pat. No. 5,223,090.
- a chemical precipitation reaction ie in particular by a so-called "Fiber Loading TM" process
- at least one additive, in particular filler is embedded on the wetted fiber surfaces of the fiber material.
- the fibers can be loaded with calcium carbonate, for example.
- calcium oxide and / or calcium hydroxide is added to the moist, disintegrated fiber material in such a way that at least a part thereof is associated with the water present in the fiber material.
- the fiber material treated in this way is then subjected to carbon dioxide.
- the "Fiber Loading TM" process can take place within a refiner.
- the calcium oxide and / or the calcium hydroxide medium is added to the fiber suspension, a chemical reaction with an exothermic property takes place, the calcium hydroxide preferably being added in liquid form (milk of lime).
- the water which is possibly stored in or on the fibers of the fiber suspension is not absolutely necessary for the start and the course of the chemical reaction.
- the carbon dioxide for such a fiber loading process has so far always been produced with a degree of purity greater than 99.8%.
- the production of carbon dioxide with such a degree of purity is correspondingly complex and expensive, which has a disadvantageous effect on the economy of the entire fiber loading process.
- the aim of the invention is to provide an improved method of the type mentioned to create, with which the previously mentioned disadvantage is eliminated and the whole can be carried out in a correspondingly simpler and more economical manner.
- This object is achieved according to the invention by a method for loading fibers contained in a fiber suspension with an auxiliary by a chemical precipitation reaction which is triggered by the addition of carbon dioxide, the carbon dioxide having a degree of purity of 99 99%, preferably of 85 85%. generated and this carbon dioxide is added to the fiber suspension. It has been found that the specified degree of purity, which is significantly lower than that of the previously known methods, is completely sufficient for the fiber planning process in question.
- the process according to the invention thus has the particular advantage that a substantial amount of energy is saved in the production of carbon dioxide and that the plant used for producing carbon dioxide and the production process can be significantly simplified. This makes the fiber loading process overall easier and more economical.
- the carbon dioxide is preferably from the exhaust gas of a fuel or produced by lime burning or the like.
- the carbon dioxide from the exhaust gas of a power plant, one Internal combustion engine, a boiler and / or the like and / or from the Exhaust gas from direct combustion is generated with any fossil fuel.
- the exhaust gas generated during combustion is advantageously one Wash process subjected to in particular solid and larger impurities wash out of the exhaust gas.
- at least one water-sprinkled wash tower can be used.
- the gas preferably following the Washing process, is bound in an absorber liquid.
- the absorber liquid can, for example, highly efficient monoethanolamine and / or a soda ash and / or Copper carbonate and water mixture included.
- the bound carbon dioxide can then be precipitated, whereby it is preferably also cooled.
- At least part of the aforementioned is different Process steps carried out in countercurrent operation.
- the gas is used for liquefaction compressed and preferably chilled and the liquid carbon dioxide then temporarily stored in a pressurized tank and so for the fiber loading process is provided.
- this carbon dioxide temporarily stored in liquid form especially to a temperature in a range from about 10 ° C to about 90 ° C are heated to achieve the desired crystal structure.
- the compression and cooling process can be at least partially eliminated.
- the CO 2 gas therefore only has to be cooled or heated to the final desired temperature and compressed to the desired pressure.
- calcium carbonate (CaCO 3 ) When loading the fibers with, for example, filler, calcium carbonate (CaCO 3 ), for example, can be embedded on the wetted fiber surfaces by adding calcium oxide (CaO) and / or calcium hydroxide (Ca (OH) 2 ) to the moist fiber material, at least some of which coexists can associate the water with the amount of fiber.
- the fiber material treated in this way can then be subjected to the carbon dioxide (CO 2 ) produced in the manner specified.
- wetted fiber surfaces can mean all wetted surfaces of the individual fibers. This also includes the case, in particular with the fibers both on their outer surface and inside (lumen) Load calcium carbonate or any other precipitation product become.
- the fibers can e.g. load with the filler calcium carbonate be, the attachment to the wetted fiber surfaces by a
- the so-called “Fiber Loading TM” process takes place as it is in US-A-5 223 090 is described.
- this "Fiber Loading TM” process e.g. the Carbon dioxide with the calcium hydroxide to water and calcium carbonate.
- the method generally serves to load fibers contained in a fiber suspension with an auxiliary by means of a chemical precipitation reaction which is triggered by the addition of carbon dioxide (CO 2 ).
- the carbon dioxide with a purity of ⁇ 99% is preferred of ⁇ 85%, and this carbon dioxide is added to the fiber suspension. From an economic and process engineering perspective, it is advantageous if the carbon dioxide in a range from about 65% to about 99%, preferably in a range of about 75% to about 85%, and this carbon dioxide Fibrous suspension is added.
- the carbon dioxide can in particular from the exhaust gas of a fuel Lime burning and / or the like are generated. As with the figure 1 to is recognizable, the carbon dioxide can in particular from the exhaust gas Power plant, a lime kiln, an internal combustion engine or one Internal combustion engine, a boiler and / or the like can be generated.
- the exhaust gas or flue gas source in question is designated by "10" in FIG. 1.
- the carbon dioxide can also be obtained from the exhaust gas Direct firing can be generated with any fossil fuel.
- the exhaust gas from a boiler 12 can be used accordingly.
- the exhaust gas generated during the combustion can then, for example, be one Washing process to be subjected in particular to solid and larger ones Wash out contaminants from the exhaust gas.
- For the washing process can for example, one or more water-sprayed wash towers 14 are used become. In the present case, two such washing towers 14 are provided. In the FIG. 1 is also the respective water cycle for these wash towers 14 indicated.
- the CO 2 gas can then optionally be subjected to an absorption process 16 and / or a cleaning process 18.
- the gas can be in a Absorber liquid are bound.
- the absorber liquid in question can for example aqueous monoethanolamine and / or a soda ash and / or Copper carbonate and water mixture included.
- the bound carbon dioxide can then be precipitated, with the carbon dioxide optionally can also be cooled.
- the two steps 16 and 18 can optionally also be omitted.
- the gas can then optionally be compressed by means of a CO 2 compressor 20.
- the carbon dioxide can then, for example, a CO 2 dryer 22, a CO 2 -Verfactungscut 24 and a CO 2 -Speicherungsyear be supplied 26th
- the gas can be compressed and preferably for liquefaction be cooled and then the liquid carbon dioxide in one pressurized tank temporarily and so for the actual Fiber loading process 28 are provided.
- the steps 22 to 26 provided in particular for high-grade CO 2 can optionally also be omitted.
- the carbon dioxide can also be fed directly to the fiber loading process 28, in particular after washing out or precipitating in its gaseous state. If the carbon dioxide is not stored temporarily, the compression and cooling process can at least partially be omitted, so that the CO 2 gas only has to be cooled or heated to the final desired temperature.
- the carbon dioxide then becomes the actual fiber loading process 28 fed.
- calcium oxide and / or calcium hydroxide can be added to the fiber material in such a way that at least part of it can associate with the water present in the fiber material, ie between the fibers, in the hollow fibers and in their walls, the sets the following chemical reaction:
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Treating Waste Gases (AREA)
- Inorganic Fibers (AREA)
Abstract
Description
Bei Zusetzung des Calciumoxids und/oder des Calciumhydroxids enthaltenen Mediums an die Faserstoffsuspension läuft eine chemische Reaktion mit exothermer Eigenschaft ab, wobei das Calciumhydroxid vorzugsweise in flüssiger Form (Kalkmilch) zugesetzt wird. Dies bedeutet, daß nicht unbedingt das möglicherweise in bzw. an den Faserstoffen der Faserstoffsuspension ein- bzw. angelagerte Wasser zum Start und Ablauf der chemischen Reaktion notwendig ist.
Das Kohlendioxid für einen solchen Faserbeladungsprozeß wurde bisher stets mit einem Reinheitsgrad größer 99,8 % erzeugt. Die Herstellung von Kohlendioxid mit einem solchen Reinheitsgrad ist entsprechend aufwendig und teuer, was sich nachteilig auf die Wirtschaftlichkeit des gesamten Faserbeladungsprozesses auswirkt.
Es hat sich herausgestellt, daß der angegebene, im Vergleich zu den bisher bekannten Verfahren deutlich geringere Reinheitsgrad für den hier in Rede stehenden Faserplanungsprozeß vollauf genügt. Das erfindungsgemäße Verfahren bringt somit insbesondere den Vorteil mit sich, daß bei der Gewinnung des Kohlendioxids ein wesentlicher Anteil an Energie eingespart wird und die der Kohlendioxiderzeugung dienende Anlage sowie der Herstellungsprozeß deutlich vereinfacht werden können. Damit wird der Faserbeladungsprozeß insgesamt einfacher und wirtschaftlicher.
- 10
- Abgasquelle, Rauchgasquelle
- 12
- Brennkessel
- 14
- Waschturm
- 16
- Absorptionsprozeß
- 18
- Reinigungsprozeß
- 20
- CO2-Kompressor
- 22
- CO2-Trockner
- 24
- CO2-Verflüssigung
- 26
- CO2-Speicherung
- 28
- Faserbeladungsprozeß
Claims (15)
- Verfahren zum Beladen von in einer Faserstoffsuspension enthaltenen Fasern mit einem Hilfsstoff durch eine chemische Fällungsreaktion, die durch Zusetzen von Kohlendioxid ausgelöst wird, wobei das Kohlendioxid mit einem Reinheitsgrad von ≤ 99 %, vorzugsweise von ≤ 85 %, erzeugt und dieses Kohlendioxid der Faserstoffsuspension zugesetzt wird.
- Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß das Kohlendioxid aus dem Abgas eines Brennstoffes oder durch Kalkbrennen erzeugt wird. - Verfahren nach Anspruch 2,
dadurch gekennzeichnet, daß das Kohlendioxid aus dem Abgas eines Kraftwerks, eines Verbrennungsmotors, eines Kessels und/oder dergleichen und/oder aus dem Abgas einer Direktfeuerung mit fossilem Brennstoff erzeugt wird. - Verfahren nach Anspruch 2 oder 3,
dadurch gekennzeichnet, daß das bei der Verbrennung erzeugte Abgas einem Waschprozeß unterzogen wird, um insbesondere feste und größere Verunreinigungen aus dem Abgas auszuwaschen. - Verfahren nach Anspruch 4,
dadurch gekennzeichnet, daß für den Waschprozeß wenigstens ein wasserberieselter Waschturm (14) eingesetzt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Gas, vorzugsweise im Anschluß an den Waschprozeß, in einer Absorberflüssigkeit gebunden wird. - Verfahren nach Anspruch 6,
dadurch gekennzeichnet, daß die Absorberflüssigkeit wässeriges Monoethanolamin und/oder ein Sodaasche- und/oder Kupfercarbonat- und Wassergemisch enthält. - Verfahren nach Anspruch 6 oder 7,
dadurch gekennzeichnet, daß das gebundene Kohlendioxid anschließend ausgefällt und vorzugsweise gekühlt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß zumindest ein Teil der verschiedenen Verfahrensschritte im Gegenstrombetrieb ausgeführt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Gas zur Verflüssigung komprimiert und vorzugsweise gekühlt und das flüssige Kohlendioxid anschließend in einem druckbeaufschlagten Tank zwischengelagert und so für den Faserbeladungsprozeß (28) bereitgestellt wird. - Verfahren nach Anspruch 10,
dadurch gekennzeichnet, daß das in flüssiger Form zwischengespeicherte Kohlendioxid vorzugsweise auf eine Temperatur in einem Bereich von etwa 10° C bis etwa 90° C erhitzt wird und das Kohlendioxid im gasförmigen Zustand dem Faserbeladungsprozeß (28) zugeführt wird. - Verfahren nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß das Kohlendioxid insbesondere nach dem Auswaschen bzw. dem Ausfällen in seinem gasförmigen Zustand direkt dem Faserbeladungsprozeß (28) zugeführt wird. - Verfahren nach Anspruch 12,
dadurch gekennzeichnet, daß das Kohlendioxid auf die gewünschte Temperatur gebracht wird, bevor es dem Faserbeladungsprozeß (28) zugeführt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Kohlendioxid für den Faserbeladungsprozeß (28) auf den gewünschten Druck komprimiert wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß weder eine Purifikation, d.h. Geruchsneutralisierung, noch eine Feinreinigung durchgeführt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10120637A DE10120637A1 (de) | 2001-04-27 | 2001-04-27 | Verfahren zum Beladen von Fasern |
| DE10120637 | 2001-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1253238A2 true EP1253238A2 (de) | 2002-10-30 |
| EP1253238A3 EP1253238A3 (de) | 2004-01-14 |
Family
ID=7682918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02002837A Withdrawn EP1253238A3 (de) | 2001-04-27 | 2002-02-08 | Verfahren zum Beladen von Fasern |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20020162638A1 (de) |
| EP (1) | EP1253238A3 (de) |
| DE (1) | DE10120637A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7056419B2 (en) * | 2002-09-30 | 2006-06-06 | American Air Liquide, Inc. | Methods for modifying electrical properties of papermaking compositions using carbon dioxide |
| DE10347920A1 (de) * | 2003-10-15 | 2005-05-19 | Voith Paper Patent Gmbh | Verfahren und Vorrichtung zum Beladen einer Faserstoffsuspension |
| DE102008049334B4 (de) * | 2008-09-29 | 2017-05-24 | Messer Austria Gmbh | Anlage und Verfahren zur Papierproduktion |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US35460A (en) * | 1862-06-03 | Improvement in coal-oil and other lamps | ||
| US5223090A (en) * | 1991-03-06 | 1993-06-29 | The United States Of America As Represented By The Secretary Of Agriculture | Method for fiber loading a chemical compound |
| WO1992021613A1 (en) * | 1991-06-04 | 1992-12-10 | Minerals Technologies, Inc. | Precipitated calcium carbonate particles from basic calcium carbonate |
| DE69324337T2 (de) * | 1992-12-23 | 2005-01-05 | ECC International Ltd., Theale, Reading | Verfahren zur Behandlung von Abfallsuspensionen |
| US5665205A (en) * | 1995-01-19 | 1997-09-09 | International Paper Company | Method for improving brightness and cleanliness of secondary fibers for paper and paperboard manufacture |
| GB9507494D0 (en) * | 1995-04-11 | 1995-05-31 | Ecc Int Ltd | Recovery of useful materials from de-inking plant sludge |
| FI100729B (fi) * | 1995-06-29 | 1998-02-13 | Metsae Serla Oy | Paperinvalmistuksessa käytettävä täyteaine ja menetelmä täyteaineen va lmistamiseksi |
| US6579410B1 (en) * | 1997-07-14 | 2003-06-17 | Imerys Minerals Limited | Pigment materials and their preparation and use |
| FI105052B (fi) * | 1998-07-08 | 2000-05-31 | Valmet Corp | Menetelmä paperin valmistamiseksi, sovitelma menetelmän toteuttamiseksi ja menetelmän avulla valmistettu paperituote |
| WO2000078874A1 (en) * | 1999-06-18 | 2000-12-28 | Imerys Pigments, Inc. | Pigment materials and their preparation and use |
-
2001
- 2001-04-27 DE DE10120637A patent/DE10120637A1/de not_active Withdrawn
-
2002
- 2002-02-08 EP EP02002837A patent/EP1253238A3/de not_active Withdrawn
- 2002-04-23 US US10/128,189 patent/US20020162638A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP1253238A3 (de) | 2004-01-14 |
| DE10120637A1 (de) | 2002-10-31 |
| US20020162638A1 (en) | 2002-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69303821T2 (de) | Verfahren und vorrichtung zur vergasung von schwarzlauge in einem zirkulierenden wirbelbett | |
| AT400586B (de) | Verfahren und reaktor zur wiedergewinnung von energie und chemikalien aus ablauge | |
| DE1935712A1 (de) | Verfahren zur Abtrennung von CO2 und/oder H2S aus Gasgemischen | |
| EP1904681A2 (de) | Verfahren zum beladen von in einer faserstoffsuspension enthaltenen fasern | |
| DE2731517A1 (de) | Verfahren zur entfernung von gasfoermigen verunreinigungen aus gasgemischen | |
| DE69509229T2 (de) | Verfahren zur entfernung von schwefeldioxid aus einem gas | |
| DE69013159T2 (de) | Verfahren zur herstellung von aufschlusslösungen mit hoher sulfidität für das kochen von sulfatpulpe. | |
| DD296695A5 (de) | Verfahren zur herstellung von brenngas fuer einen kombinierten gas- und dampfturbinenprozess | |
| EP1253238A2 (de) | Verfahren zum Beladen von Fasern | |
| DE68912949T2 (de) | Ligninzubereitung und verfahren zur herstellung. | |
| DE3789946T2 (de) | Lignosulfonat-modifiziertes Calciumhydroxyd zur Schwefeloxidentfernung durch Einblasen in den Verbrennungsofen. | |
| DE10120635A1 (de) | Verfahren und Vorrichtung zum Beladen von Fasern mit Calciumcarbonat | |
| EP2172591B1 (de) | Anlage und Verfahren zur Papierproduktion | |
| DE10347920A1 (de) | Verfahren und Vorrichtung zum Beladen einer Faserstoffsuspension | |
| DE2751527A1 (de) | Verfahren zur herstellung eines gasfoermigen brennstoffs und von schwefel aus einem kohlenwasserstoffbrennstoff | |
| DE3536022A1 (de) | Verfahren zur rueckgewinnung von chemikalien aus verbrauchten aufschlussloesungen | |
| DE2425393B2 (de) | Verfahren zur Entsäuerung von Koksofengas | |
| DE19601713C2 (de) | Verfahren zur Vergasung von festen Brennstoffen und zur Weiterverarbeitung des dabei gewonnenen Gasgemisches | |
| DE2907600A1 (de) | Verfahren zum abtrennen von schwefeloxiden aus abgasen | |
| EP0520317A1 (de) | Verfahren zur thermischen Umsetzung von Schwefelwasserstoff zu elementarem Schwefel | |
| DE2834701A1 (de) | Verfahren und vorrichtung zum inberuehrungbringen und umwaelzen von gas und fluessigkeit | |
| AT155400B (de) | Verfahren zur Herstellung von wärmesperrenden Platten unter Verwendung von Glaswatte und Bindemitteln sowie gegebenenfalls einem Zusatz von Mineralwolle. | |
| DE102006003721A1 (de) | Verfahren zum Beladen von in einer Faserstoffsuspension enthaltenen Fasern | |
| DE10024790A1 (de) | Verfahren zur Vorbehandlung einer Faserstoffsuspension | |
| DE2823749B2 (de) | Verfahren zur Rückgewinnung des Magnesiumbisulfits |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| 17P | Request for examination filed |
Effective date: 20040714 |
|
| AKX | Designation fees paid |
Designated state(s): AT DE FI IT SE |
|
| 17Q | First examination report despatched |
Effective date: 20050126 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VOITH PATENT GMBH |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20080624 |

