DE60231303D1 - - Google Patents

Info

Publication number
DE60231303D1
DE60231303D1 DE60231303T DE60231303T DE60231303D1 DE 60231303 D1 DE60231303 D1 DE 60231303D1 DE 60231303 T DE60231303 T DE 60231303T DE 60231303 T DE60231303 T DE 60231303T DE 60231303 D1 DE60231303 D1 DE 60231303D1
Authority
DE
Germany
Prior art keywords
water
calcium ions
process water
papermaking
separated
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 - Fee Related
Application number
DE60231303T
Other languages
German (de)
English (en)
Inventor
Ny Corinne Le
Hannu Leino
Heikki Pakarinen
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.)
Linde GmbH
UPM Kymmene Oy
Original Assignee
Linde GmbH
UPM Kymmene Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8561300&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE60231303(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Linde GmbH, UPM Kymmene Oy filed Critical Linde GmbH
Application granted granted Critical
Publication of DE60231303D1 publication Critical patent/DE60231303D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • 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
    • D21H17/01—Waste products, e.g. sludge

Landscapes

  • Paper (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Removal Of Specific Substances (AREA)
DE60231303T 2001-05-30 2002-05-30 Expired - Fee Related DE60231303D1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20011131A FI20011131A (fi) 2001-05-30 2001-05-30 Kiertovesien käsittelymenetelmä
PCT/FI2002/000463 WO2002097189A1 (fr) 2001-05-30 2002-05-30 Procede de traitement d'eaux de circulation

Publications (1)

Publication Number Publication Date
DE60231303D1 true DE60231303D1 (fr) 2009-04-09

Family

ID=8561300

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60231303T Expired - Fee Related DE60231303D1 (fr) 2001-05-30 2002-05-30

Country Status (5)

Country Link
EP (1) EP1402111B1 (fr)
AT (1) ATE423867T1 (fr)
DE (1) DE60231303D1 (fr)
FI (1) FI20011131A (fr)
WO (1) WO2002097189A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
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
CN100429161C (zh) * 2005-11-29 2008-10-29 谢列兵 水处理工艺及管式水处理装置
EP1816259A1 (fr) * 2006-02-07 2007-08-08 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Utilisation du dioxyde de carbone pour optimiser le pH dans la partie humide de la machine à papier
DE102006034186A1 (de) * 2006-07-24 2008-01-31 Siemens Ag Einrichtung zur Papierherstellung, insbesondere Altpapier
FI20065727A0 (fi) 2006-11-15 2006-11-15 Linde Ag Menetelmä kerrostuman muodostumisen vähentämiseksi sellu- ja paperiteollisuudessa
FI20096259A0 (fi) 2009-11-30 2009-11-30 Linde Ag Menetelmä ja järjestelmä prosessiveden käsittelemiseksi
FI127995B (en) * 2012-12-21 2019-07-15 Upm Kymmene Corp Utilization of waste water and flue gas
GB201315092D0 (en) * 2013-08-23 2013-10-09 T & L Process Technology Ltd Improved Process
FR3081861B1 (fr) * 2018-06-05 2020-05-15 Air Liquide France Industrie Methode de traitement d'un effluent industriel alcalin a l'aide de co2
CN111573998B (zh) * 2020-06-12 2023-07-11 浙江大学 废纸造纸废水高效厌氧出水脱气除钙系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10174979A (ja) * 1996-12-18 1998-06-30 Hitachi Zosen Corp 排水処理方法および装置
SE511794C2 (sv) * 1997-06-30 1999-11-29 Sunds Defibrator Ind Ab Sätt att reducera halten kalcium i vätskefasen i en pappersmassasuspension
SE9803384L (sv) * 1998-03-02 1999-09-03 Kemira Kemi Ab Förfarande för behandling av processvatten

Also Published As

Publication number Publication date
ATE423867T1 (de) 2009-03-15
FI20011131A (fi) 2002-12-01
WO2002097189A1 (fr) 2002-12-05
EP1402111A1 (fr) 2004-03-31
FI20011131A0 (fi) 2001-05-30
EP1402111B1 (fr) 2009-02-25

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee