[go: up one dir, main page]

WO2001073193A1 - Procede et dispositif de traitement d'un melange de vieux papiers de recuperation - Google Patents

Procede et dispositif de traitement d'un melange de vieux papiers de recuperation Download PDF

Info

Publication number
WO2001073193A1
WO2001073193A1 PCT/DE2001/001096 DE0101096W WO0173193A1 WO 2001073193 A1 WO2001073193 A1 WO 2001073193A1 DE 0101096 W DE0101096 W DE 0101096W WO 0173193 A1 WO0173193 A1 WO 0173193A1
Authority
WO
WIPO (PCT)
Prior art keywords
fraction
waste paper
wind
approximately
classifier
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.)
Ceased
Application number
PCT/DE2001/001096
Other languages
German (de)
English (en)
Inventor
Gerd Buchholz
Clemens Lenzen
Jürgen Hüskens
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.)
Isis GmbH
Original Assignee
Isis GmbH
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 Isis GmbH filed Critical Isis GmbH
Priority to AU2001248275A priority Critical patent/AU2001248275A1/en
Priority to EP01921233A priority patent/EP1282740A1/fr
Publication of WO2001073193A1 publication Critical patent/WO2001073193A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/026—Separating fibrous materials from waste
    • D21B1/028—Separating fibrous materials from waste by dry methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Definitions

  • the invention relates to a process for the preparation of a waste paper mixture according to the preamble of claim 1, in which the waste paper mixture is screened to remove a coarse fraction containing large cardboards with a screen hole width of approximately 200 to 450 mm, to a grain size in the range of approximately 40 to 90 mm shredded and the shredded waste paper mixture is separated into a first heavy goods fraction and into a first light goods fraction containing deinking goods at a separation speed of between 1 and 5 m / sec.
  • the invention further relates to a device for processing a waste paper mixture according to the preamble of claim 13 with a sieve for separating a coarse fraction containing large cardboards with a sieve hole width of approximately 200 to 450 mm, a shredder for shredding the waste paper mixture and a first wind sifter connected downstream of the shredder for separating the shredded waste paper mixture into a first heavy material fraction and into a first light material fraction, the first air classifier having a viewing cross section in which a separation speed between 1 and 5 m / sec can be set.
  • sorting personnel are employed in order to separate the contents of depot containers, tons of bulk goods and / or bundled goods into different qualities, each for reuse to achieve the required paper / cardboard qualities, including deinking goods.
  • Devices for sorting a waste paper mixture generally comprise conveyor or reading belts with sorting personnel, which sort out interfering substances such as cardboard, cardboard boxes and possibly books as well as non-paper components by hand to produce deinking goods from the delivered waste paper mixture.
  • cardboards and cardboard boxes are also read out for the production of a fraction predominantly containing cardboard.
  • the Deinkingware fraction consists largely of newspapers and magazines and, as required, has at least 40% newspapers and at least 40% magazines as well as a proportion of contaminants, e.g. B. cardboard, cardboard and non-paper components, from a maximum of 3%, while the fraction contains mixed paper, newspapers and magazines (less than 40%), cardboard, other papers, cardboard (more than 60%) and to a lesser extent plastics and other contaminants.
  • the cardboard fraction consists predominantly (over 70%) of cardboard, cardboard, solid cardboard and the like.
  • DE-A-199 57 548 (not prepublished) describes a method and a device in which or with which the waste paper mixture is screened to remove a coarse fraction containing large-sized cardboards with a screen hole size of approximately 200 to 450 mm, to a grain size in the range from about 20 to 80 mm and the shredded waste paper mixture is separated into a first heavy goods fraction and into a first light goods fraction containing deinking goods by means of a first wind sifting at a separation speed between 1 to 5 m / sec.
  • this deinking good quality has an initial whiteness, which with about 40 to 44% (ISO 2469 and 2470, here: measured without UV) tends to be at the lower limit of hand-sorted deinking good quality (standard quality with an output white of about 44 to 46%) ) lies and is therefore relatively dark.
  • DE-A-25 42 571 describes a method and a device for paper sorting, in which or with which a waste paper mixture is shredded into pieces of the same size as possible with a maximum edge length of 10 cm without further pretreatment steps, and the shredded waste paper mixture by means of a first air classifier in a high wind speed is split into a first heavy goods fraction and a first light goods fraction. While no further processing steps are provided for the first heavy material fraction, the first light material fraction is split up into a second heavy material fraction and a second light material fraction in a second air classifier.
  • This object is achieved in the method mentioned at the outset with the characterizing features of claim 1 in that the first crushed heavy goods fraction to a grain size in the range of about 20 to 60 mm and is separated by means of a second wind sifting into a second heavy goods fraction and a second light goods fraction containing deinking goods.
  • This object is achieved in the device mentioned at the outset with the characterizing features of claim 13 in that the first air classifier is followed by a secondary shredder and a second wind separator for separating the first secondary size heavy material fraction into a second heavy material fraction and a second light material fraction.
  • the sieving with the specified sieve hole widths, the shredding of the waste paper mixture and the first heavy material fraction to the proposed grain sizes and the air classifications also enable high throughputs with a consistently high quality of the fractions produced.
  • the waste paper mixture is sieved and loosened by means of a ballistic separator provided with sieve openings.
  • a suitable ballistic separator essentially comprises a plurality of flat profiles which are arranged next to one another at an incline and which can be moved horizontally and vertically, for example by means of a crankshaft drive, and - in contrast to density classification or sorting known ballistic separators - are provided with openings for screening.
  • the waste paper mixture When the waste paper mixture is comminuted to a grain size in the range of approximately 45 to 75 mm, a particularly high quality of separation between the first heavy material fraction (mixed paper) and the first light material fraction in the first wind sifting can be achieved with a relatively low comminution effort.
  • this grain size more than 95% of the cardboard contained in the shredded waste paper mixture can be separated and largely enriched in the first heavy goods fraction.
  • the white potential of stapled or glued papers for the first light material fraction can still be tapped with a reasonable shredding effort.
  • the first heavy material fraction When the first heavy material fraction is re-comminuted to a grain size in the range of approximately 30 to 50 mm, a particularly favorable loosening of the first heavy material fraction and a particularly high quality of separation between the second heavy material fraction and the second light material fraction can be achieved in the second wind sifting with a relatively small size reduction , After this loosening and with this grain size, a very high starting whiteness can be found - in the Separate some of the first heavy goods fraction, which was initially lost due to a high starting quality, particularly advantageously from thin cardboard snippets and enrich it in the second light goods fraction.
  • the cutting speed in the secondary comminution is in the range from 5 to 15 m / sec, preferably in the range from 6 to 12 m / sec, a comprehensive loosening can be ensured without any signs of fraying.
  • the separation speed in the first air separation is in the range from 1.5 to 4.5 m / sec, preferably in the range from 1.7 to 3.5 m / sec, particularly high qualities can be ensured in the fractions produced.
  • the separation speed in the second wind sifting is approximately 5 to 15% higher than in the first wind sifting, a particularly high starting whiteness of the second light material fraction can be ensured.
  • a suitable air classifier is known for example from DE-U-297 09 918. If the wind sifting takes place in a zigzag sifter, a particularly high degree of selectivity can be achieved between the heavy goods fractions and the light goods fractions. If the wind sifting takes place in a cross-flow sifter, particularly trouble-free operation can be guaranteed.
  • the shredded waste paper mixture and the shredded first heavy material fraction are fed into the air classifier in a particularly advantageous manner by means of a cellular wheel sluice, provided that this is designed as a cone or cross flow classifier.
  • a cellular wheel sluice is preferably arranged eccentrically in the feed channel of the air classifier.
  • the shredded waste paper mixture and the shredded first heavy goods fraction are preferably mechanically conveyed to the air classifiers.
  • the mechanical conveying to the second air classifier comprises a conveying device designed as a paddle screw, related re-comminuted components can be gently dissolved and additionally loosened at their kinks or folds without causing violent tears. Otherwise, pieces of paper and catalogs held together by adhesive could be torn apart by violent tearing and end up in the first light material fraction, where they are undesirable due to their adhesive content and the associated difficulties in further processing.
  • the mechanical conveying devices also preferably comprise vibrators for feeding into the air classifier or for feeding to the cellular wheel locks.
  • the light material fractions that initially occur during wind sifting and that contain the deinkingware fractions are advantageously split up in separating cyclones into the (conveying) air streams and in deinkingware.
  • the quality of the deinking goods in particular the respective starting white, can be identified by presorting the waste paper mixture to be fed to the shredder and the first heavy material fraction to be fed to the shredder by means of dye and / or NIR (near infra-red) detection and a pneumatic discharge Increase contaminants.
  • NIR near infra-red
  • through-colored papers can be separated early and effectively on the basis of their size and / or coloring, so that de-inking fractions freed from through-colored papers can essentially be produced.
  • Fig. 1 shows a schematic representation of an embodiment of an inventive device for processing a waste paper mixture
  • the device for sorting a waste paper mixture shown schematically in FIG. 1 comprises a sieve designed as a ballistic separator 1, a shredder designed as a granulator 2, a wind sifter designed as a cone sifter 3, which is connected downstream of the granulator 2, and a cyclone 8 downstream of the cone sifter 3.
  • the granulator 2 has, as comminution means, blow bars arranged distributed over the circumference and in the axial direction of a rotor, which, in cooperation with an associated stator, bring about a low-dust cutting and shearing comminution without squeezing the waste paper mixture into stuck-up shredder blocks.
  • the crushing to the desired grain size is done at the
  • Granulator 2 guaranteed by a sieve arranged below the rotor with a corresponding sieve hole width and a return of the material that has not yet been sufficiently comminuted into the engagement area of the rotor.
  • the shredding means prevent several sides from sticking together during the shredding, so that at most to a small extent paper chips adhering to one another, for example by block-like punching, are produced.
  • a hammer mill is also suitable as the shredder 2, for example, in which a relatively high level of dust can possibly be accepted.
  • the cyclone 8 is followed by a dust separator 10 for dust separation from the first light material fraction.
  • a conveyor device designed as a vibrating trough 6 for conveying and loosening up the shredded waste paper mixture is arranged.
  • An FE separator 11 which is designed as an overband magnet, is arranged downstream of the cone sifter 3 on the output side of the (first) heavy material or the mixed paper fraction.
  • the metal separator 11 is followed by a secondary shredder designed as a granulator 4 with a paddle screw 7 connected downstream.
  • the paddle screw 7 is followed by a second wind sifter designed as a cone sifter 5.
  • a cyclone 9 with a downstream (not shown) dust classifier for dust separation from the second light material fraction is connected downstream of the cone classifier 5 on the light material side.
  • the granulator 4 is structurally essentially the same as the granulator 2, but is equipped with comminution means for comminution to a grain size of approximately 30 mm.
  • the waste paper mixture delivered via a barrel collection is sieved and loosened by means of the ballistic separator 1 and fed to the granulator 2, where it is crushed to a grain size of approximately 60 mm.
  • the ballistic separator 1 By sieving using the ballistic separator 1 about 10 to 25% of the discarded waste paper mixture is separated as an overflow, which essentially comprises larger cardboards and already has the quality of department store waste paper (type B 19).
  • the shredded and possibly freed of colored constituents waste paper mixture is then conveyed to the cone sifter 3 by means of the vibrating channel 6 and there split by means of an air stream (carrier air) into a first heavy material fraction and into a first light material fraction, the separation speed of the
  • the first heavy goods fraction is a mixed paper fraction, which largely consists of lumpy cardboard, cardboard, illustrated snippets, other shreds of paper and a small proportion of other contaminants, as well as meeting the requirements for sorted mixed waste paper of a lower grade (grade B 12).
  • the first heavy goods fraction is a mixed paper fraction, which largely consists of lumpy cardboard, cardboard, illustrated snippets, other shreds of paper and a small proportion of other contaminants, as well as meeting the requirements for sorted mixed waste paper of a lower grade (grade B 12).
  • Light goods fraction comprises the first fraction deinking and the conveying
  • Airflow In the air sifting process, more than 95% of the cardboard-containing components contained in the shredded waste paper mixture are separated and enriched in the first heavy goods fraction.
  • the first heavy goods fraction is freed from magnetic interfering substances by the metal separator 11 and fed to the granulator 4, the first light goods fraction is fed to the cyclone 8 and there separated into (the first fraction) deinking goods and air flow.
  • the first fraction of deinking goods is then fed to the dust sifter 10 and dedusted there.
  • the first heavy material fraction comminuted and loosened in the granulator 4 is loosened further in the paddle screw 7 and transported to the air classifier 5 and sighted there.
  • the resulting second heavy goods fraction then arrives at a baler (not shown) in order to be pressed there for transport.
  • the second heavy goods fraction has a relatively good waste paper quality, which corresponds approximately to the type B 19.
  • the second light material fraction separated in the wind sifter 5 is separated into the second fraction deinking goods and transport air in the cyclone 9 and then dedusted in the downstream dust sifter.
  • the conical sifter 3 has a sifting cross section of approximately 0.5 to 1.5 m 2 , preferably 0.8 to 1.2 m 2 ( If the wind sifters 3 and 5 are designed as zigzag sifters, the viewing cross-section is approximately 2 to 5 m 2 , preferably 2.5 to 4 m 2 ).
  • the volume flow of air is set such that a separation speed of approximately 1 to 5 m / sec, preferably 1.5 to 4.5 m / sec and particularly preferably 1.7 to 3.5 m / sec results.
  • several wind classifiers 3 and granulators 2 are connected in parallel.
  • the volume flow in air is set about 1.1 times as high as in the first wind sifting.
  • the Deinkingware fraction based on the waste paper mixture fed to sieve 1 The first and second fractions of deinking goods are granted significantly more than 97.5% made of thin paper and contain only a small proportion of thin cardboard and other contaminants.
  • the impurities in the first and second fraction of deinking ware were found in tests, which significantly reduce the quality of the papers made from deinking ware, such as. B. cardboard, adhesive backing, wrapping papers and colored papers below 1, 5% (mass%).
  • the two fractions deinking goods that can be produced with the above-described method or with the above-described device can be marketed directly.
  • the starting whites of hand-sorted deinking ware can be reliably maintained and surpassed.
  • the contaminants with a negative influence on the quality of mixtures of the first and second fraction of deinking ware produced can be reduced by more than 30% with the method and the device according to the invention.
  • the device can be provided with a wave screen in order to automatically separate large cardboards and economically produce a high quality fraction of cardboard.
  • a training of the sieve as a ballistic separator 1 has the advantage, however, that in addition to the sieve function, it also takes over a loosening function by a certain cyclical beating against the feed material and thus ensures that the shredder 2 is fed individual or loose sheets as possible, so that none during shredding A multilayer newspaper / magazine can be pressed together at the cut edges.
  • Such a loosening significantly increases the yield of deinking goods. If the loosening function is dispensed with, then a correspondingly lower yield has to be accepted, since the shredded paper fragments would then get into the heavy goods, or, if necessary, provide a separate loosening device.
  • a wind sifting is carried out by means of a cross-flow classifier in a modification of the aforementioned experiments or the above exemplary embodiment, a compact construction of the wind sifting stage can be realized with little investment.
  • the shredded waste paper mixture can advantageously be separated in free fall and any caking of damp pieces of paper on internals can be avoided.
  • the waste paper mixture is screened in two stages.
  • the sieve designed as a ballistic separator 1 can be designed in two stages.
  • a particularly expedient ballistic separator 1 can for this purpose have, on average, essentially sawtooth-shaped profiles with two successive regions of different sieve hole widths.
  • the screen hole width is approximately 40 to 60 mm.
  • the screen hole size is approximately 200 to 450 mm, preferably 300 to 430 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un dispositif permettant de traiter un mélange de vieux papiers de récupération, comprenant un tamis (1) pour séparer une fraction grossière contenant du carton en nappe, dont la largeur des mailles est comprise entre approximativement 200 et 450 mm, un broyeur (2) pour broyer le mélange de vieux papiers de récupération et un séparateur à air (3) séparant ledit mélange de vieux papiers de récupération en une première fraction de produit lourd et en une première fraction de produit de faible poids. Le premier séparateur à air (3) présente une section transversale de tamisage dans laquelle il est possible d'ajuster une vitesse de séparation comprise entre 1 et 5 m/sec. Ce dispositif est obtenu du fait qu'il est prévu de monter en aval du premier séparateur à air (3), côté produit lourd, un broyeur auxiliaire (4) et un second séparateur à air (5) pour séparer la première fraction de produit lourd broyée ultérieurement en une seconde fraction de produit lourd et en une seconde fraction de produit de faible poids.
PCT/DE2001/001096 2000-03-24 2001-03-21 Procede et dispositif de traitement d'un melange de vieux papiers de recuperation Ceased WO2001073193A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001248275A AU2001248275A1 (en) 2000-03-24 2001-03-21 Method and device for the production of a recycled paper mixture
EP01921233A EP1282740A1 (fr) 2000-03-24 2001-03-21 Procede et dispositif de traitement d'un melange de vieux papiers de recuperation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10014872A DE10014872C2 (de) 2000-03-24 2000-03-24 Verfahren und Einrichtung zur Aufbereitung eines Papiergemisches
DE10014872.7 2000-03-24

Publications (1)

Publication Number Publication Date
WO2001073193A1 true WO2001073193A1 (fr) 2001-10-04

Family

ID=7636345

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/001096 Ceased WO2001073193A1 (fr) 2000-03-24 2001-03-21 Procede et dispositif de traitement d'un melange de vieux papiers de recuperation

Country Status (4)

Country Link
EP (1) EP1282740A1 (fr)
AU (1) AU2001248275A1 (fr)
DE (1) DE10014872C2 (fr)
WO (1) WO2001073193A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008087107A1 (fr) * 2007-01-17 2008-07-24 Voith Patent Gmbh Procédé pour la fabrication de papiers de qualité supérieure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10209525C1 (de) * 2002-03-04 2003-12-18 Sanne Kruse & Pape Gmbh & Co Verfahren zum Sortieren von Altpapiersammelware zum Gewinnen von Deinkingpapier und Vorrichtung zur Durchführung des Verfahrens
WO2018159578A1 (fr) * 2017-03-01 2018-09-07 セイコーエプソン株式会社 Dispositif de fabrication de feuille, procédé de commande d'un tel dispositif de fabrication de feuille, et procédé de fabrication de feuille

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542571A1 (de) * 1975-09-22 1977-03-24 Budde Bernhard Verfahren zur sortentrennung von altpapieren
GB1498108A (en) * 1974-03-15 1978-01-18 Nederlandse Appl Scient Res Recovery of paper fibres from paper-containing refuse
DE19907983A1 (de) * 1999-02-25 2000-09-07 U T G Ges Fuer Umwelttechnik G Verfahren und Einrichtung zur Sortierung eines Papiergemisches

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29709918U1 (de) * 1997-06-07 1998-10-08 Bückmann GmbH, 41238 Mönchengladbach Vorrichtung zum Ausscheiden von Fein- und Leichtgut aus trockenem, rieselfähigem Schüttgut
DE29921008U1 (de) * 1999-11-12 2001-02-08 U.T.G. Gesellschaft für Umwelttechnik GmbH, 41061 Mönchengladbach Deinkingware

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1498108A (en) * 1974-03-15 1978-01-18 Nederlandse Appl Scient Res Recovery of paper fibres from paper-containing refuse
DE2542571A1 (de) * 1975-09-22 1977-03-24 Budde Bernhard Verfahren zur sortentrennung von altpapieren
DE19907983A1 (de) * 1999-02-25 2000-09-07 U T G Ges Fuer Umwelttechnik G Verfahren und Einrichtung zur Sortierung eines Papiergemisches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008087107A1 (fr) * 2007-01-17 2008-07-24 Voith Patent Gmbh Procédé pour la fabrication de papiers de qualité supérieure

Also Published As

Publication number Publication date
EP1282740A1 (fr) 2003-02-12
DE10014872A1 (de) 2001-10-04
DE10014872C2 (de) 2002-01-31
AU2001248275A1 (en) 2001-10-08

Similar Documents

Publication Publication Date Title
EP1100992B1 (fr) Procede et dispositif de tri d'un melange de papiers
DE2434493A1 (de) Vorrichtung zum sortieren von feststoff-abfall
EP0243819B1 (fr) Procédé et dispositif pour fractionner un mélange hétérogène de matières solides
DE3105597C2 (de) Abfallaufbereitung
WO2001021512A2 (fr) Dispositif de tri de particules de tailles differentes
DE3728899C2 (fr)
DE19519516C2 (de) Verfahren und Vorrichtung zur Aufbereitung von Faserbestandteile und Fremdbestandteile enthaltenden Faserstoffen, insbesondere von Alt-Mineralwolle
DE10014872C2 (de) Verfahren und Einrichtung zur Aufbereitung eines Papiergemisches
DE2542571C3 (de) Verfahren und Vorrichtung zur Sortentrennung von Altpapieren
DE2449689C3 (de) Verfahren zum Sortieren von Kommunal- und Gewerbemüll
DE19957548A1 (de) Verfahren und Einrichtung zur Sortierung eines Papiergemisches
DE19907983C2 (de) Verfahren und Einrichtung zur Sortierung eines Papiergemisches
DE3836608C2 (fr)
DE2731270A1 (de) Verfahren und vorrichtung zur wiederaufbereitung von ferromagnetische teile enthaltenden verpackungen
EP1248880A1 (fr) Procede et dispositif pour trier un melange de papier
DE2820206A1 (de) Verfahren und vorrichtung zum sortieren von abfall
EP1188491A1 (fr) Procédé pour séparer un mélange de plastiques d'un mélange de déchets et dispositif de tri de déchets
EP1206978B1 (fr) Dispositif pour trier, séparer une fraction
DE2939743A1 (de) Verfahren zur aufbereitung von in gewerbebetrieben und/oder haushalten anfallendem muell
EP1244838B1 (fr) Mélange de vieux papiers destiné au procédé de désencrage
DE10135678A1 (de) Verfahren und Vorrichtung zum Sortieren von Pappe, Kartonagen, Papier, insbesondere De-Inking-Papier
EP1261770B1 (fr) Procede et dispositif pour reguler le degre de blanc d'un produit en vrac compose de morceaux de papier fractionnes
EP1342832B1 (fr) Procédé pour trier des vieux papiers pour recupérer du papier à désencré
DE202004019735U1 (de) Aufbereitungsanlage für Abfälle
DE2420470C2 (de) Verfahren zur Aufbereitung von Kommunalmüll zwecks Faserstoffrückgewinnung

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DK DM DZ EE ES FI GB GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2001921233

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2001921233

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Ref document number: 2001921233

Country of ref document: EP