FI944808A0 - Method for treating cellulosic pulps - Google Patents

Method for treating cellulosic pulps

Info

Publication number
FI944808A0
FI944808A0 FI944808A FI944808A FI944808A0 FI 944808 A0 FI944808 A0 FI 944808A0 FI 944808 A FI944808 A FI 944808A FI 944808 A FI944808 A FI 944808A FI 944808 A0 FI944808 A0 FI 944808A0
Authority
FI
Finland
Prior art keywords
treating cellulosic
cellulosic pulps
pulps
treating
cellulosic
Prior art date
Application number
FI944808A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI944808A (en
FI102301B (en
FI102301B1 (en
Inventor
Tapani Vuorinen
Johanna Buchert
Anita Teleman
Maija Tenkanen
Original Assignee
Tapani Vuorinen
Johanna Buchert
Anita Teleman
Maija Tenkanen
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=8541578&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI944808(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tapani Vuorinen, Johanna Buchert, Anita Teleman, Maija Tenkanen filed Critical Tapani Vuorinen
Priority to FI944808A priority Critical patent/FI102301B1/en
Publication of FI944808A0 publication Critical patent/FI944808A0/en
Priority to AU36559/95A priority patent/AU3655995A/en
Priority to JP1996512965A priority patent/JP3534412B6/en
Priority to CA002160430A priority patent/CA2160430C/en
Priority to RU97107353A priority patent/RU2126862C1/en
Priority to PCT/FI1995/000566 priority patent/WO1996012063A1/en
Priority to PT95934164T priority patent/PT786029E/en
Priority to CN95196599A priority patent/CN1075143C/en
Priority to ES95934164T priority patent/ES2147303T3/en
Priority to EP95934164A priority patent/EP0786029B1/en
Priority to DE69517532T priority patent/DE69517532D1/en
Priority to NZ293983A priority patent/NZ293983A/en
Priority to ZA958655A priority patent/ZA958655B/en
Priority to SE9503595A priority patent/SE518080C2/en
Publication of FI944808A publication Critical patent/FI944808A/en
Priority to FI971508A priority patent/FI971508A/en
Priority to NO971682A priority patent/NO971682L/en
Priority to US08/925,321 priority patent/US6776876B1/en
Publication of FI102301B publication Critical patent/FI102301B/en
Publication of FI102301B1 publication Critical patent/FI102301B1/en
Application granted granted Critical

Links

Classifications

    • 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
    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
FI944808A 1994-10-13 1994-10-13 Process for treating cellulose pulp FI102301B1 (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
FI944808A FI102301B1 (en) 1994-10-13 1994-10-13 Process for treating cellulose pulp
NZ293983A NZ293983A (en) 1994-10-13 1995-10-12 Treatment of sulphate pulp at acidic ph and elevated temperature to remove hexenuronic acid
EP95934164A EP0786029B1 (en) 1994-10-13 1995-10-12 Method for removal of hexenuronic acid groups in cellulose pulp by heat treatment
DE69517532T DE69517532D1 (en) 1994-10-13 1995-10-12 METHOD FOR REMOVING WITCH ENURIZED GROUPS IN CELLULAR-FREE THROUGH HEAT TREATMENT
CA002160430A CA2160430C (en) 1994-10-13 1995-10-12 Method of treating cellulose pulps
RU97107353A RU2126862C1 (en) 1994-10-13 1995-10-12 Method of removing groups of hexenuronic acids from cellulose by heat treatment
PCT/FI1995/000566 WO1996012063A1 (en) 1994-10-13 1995-10-12 Method for removal of hexenuronic acid groups in cellulose pulp by heat treatment
PT95934164T PT786029E (en) 1994-10-13 1995-10-12 PROCESS FOR THE REPLACEMENT OF HEXENO-URONIC ACID GROUPS IN HEAT TREATMENT CELLULOSE SHEET
CN95196599A CN1075143C (en) 1994-10-13 1995-10-12 Method for removal of hexenuronic acid groups in cellulose pulp by heat treatment
ES95934164T ES2147303T3 (en) 1994-10-13 1995-10-12 PROCEDURE FOR ELIMINATION OF GROUPS OF HEXENURONIC ACID IN THE CELLULOSE PASTE THROUGH HEAT TREATMENT.
AU36559/95A AU3655995A (en) 1994-10-13 1995-10-12 Method for removal of hexenuronic acid groups in cellulose pulp by heat treatment
JP1996512965A JP3534412B6 (en) 1994-10-13 1995-10-12 Method for removing hexenuronic acid groups in cellulose pulp by heat treatment
SE9503595A SE518080C2 (en) 1994-10-13 1995-10-13 Treatment of pulp with acid to remove hexenuronic acid groups
ZA958655A ZA958655B (en) 1994-10-13 1995-10-13 Method of treating cellulose pulps
FI971508A FI971508A (en) 1994-10-13 1997-04-10 Method for removing hexenuronic acid groups from cellulose pulp by heat treatment
NO971682A NO971682L (en) 1994-10-13 1997-04-11 Method for removing hexenuronic acid groups in cellulose pulp by heat treatment
US08/925,321 US6776876B1 (en) 1994-10-13 1997-09-08 Method of treating cellulosic pulp to remove hexenuronic acid

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI944808 1994-10-13
FI944808A FI102301B1 (en) 1994-10-13 1994-10-13 Process for treating cellulose pulp

Publications (4)

Publication Number Publication Date
FI944808A0 true FI944808A0 (en) 1994-10-13
FI944808A FI944808A (en) 1996-04-14
FI102301B FI102301B (en) 1998-11-13
FI102301B1 FI102301B1 (en) 1998-11-13

Family

ID=8541578

Family Applications (2)

Application Number Title Priority Date Filing Date
FI944808A FI102301B1 (en) 1994-10-13 1994-10-13 Process for treating cellulose pulp
FI971508A FI971508A (en) 1994-10-13 1997-04-10 Method for removing hexenuronic acid groups from cellulose pulp by heat treatment

Family Applications After (1)

Application Number Title Priority Date Filing Date
FI971508A FI971508A (en) 1994-10-13 1997-04-10 Method for removing hexenuronic acid groups from cellulose pulp by heat treatment

Country Status (14)

Country Link
EP (1) EP0786029B1 (en)
CN (1) CN1075143C (en)
AU (1) AU3655995A (en)
CA (1) CA2160430C (en)
DE (1) DE69517532D1 (en)
ES (1) ES2147303T3 (en)
FI (2) FI102301B1 (en)
NO (1) NO971682L (en)
NZ (1) NZ293983A (en)
PT (1) PT786029E (en)
RU (1) RU2126862C1 (en)
SE (1) SE518080C2 (en)
WO (1) WO1996012063A1 (en)
ZA (1) ZA958655B (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105701B (en) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Method and arrangement for treatment of pulp
US6210801B1 (en) 1996-08-23 2001-04-03 Weyerhaeuser Company Lyocell fibers, and compositions for making same
US6235392B1 (en) 1996-08-23 2001-05-22 Weyerhaeuser Company Lyocell fibers and process for their preparation
US6221487B1 (en) 1996-08-23 2001-04-24 The Weyerhauser Company Lyocell fibers having enhanced CV properties
US6331354B1 (en) 1996-08-23 2001-12-18 Weyerhaeuser Company Alkaline pulp having low average degree of polymerization values and method of producing the same
US6306334B1 (en) 1996-08-23 2001-10-23 The Weyerhaeuser Company Process for melt blowing continuous lyocell fibers
US6605350B1 (en) 1996-08-23 2003-08-12 Weyerhaeuser Company Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same
BE1010677A3 (en) * 1996-10-11 1998-11-03 Solvay Interox Method for the delignification and bleaching of a chemical paper pulp
BE1010880A3 (en) * 1997-01-27 1999-02-02 Solvay Interox Process for producing pulp chemicals.
FI122654B (en) * 1997-12-08 2012-05-15 Ovivo Luxembourg Sarl Process for making paper cellulose pulp
FI119383B (en) * 1998-03-06 2008-10-31 Andritz Oy Procedure for treating pulp
US6686040B2 (en) 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell products
US6797113B2 (en) 1999-02-24 2004-09-28 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell pulps method
US6686039B2 (en) 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell pulps
US6685856B2 (en) 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell products method
AU5317700A (en) * 1999-06-08 2000-12-28 Eastern Pulp And Paper Corporation Bleaching pulp with high-pressure O2
SE0002047L (en) * 2000-05-31 2001-11-19 Kvaerner Pulping Tech Process for controlling a process for making pulp by optical measurement of the amount of hexenuronic acid
JP4603298B2 (en) * 2004-06-08 2010-12-22 日本製紙株式会社 Pulp bleaching method
US20060201642A1 (en) * 2005-03-08 2006-09-14 Andritz Inc. Methods of treating chemical cellulose pulp
US20070240837A1 (en) * 2006-04-13 2007-10-18 Andritz Inc. Hardwood alkaline pulping processes and systems
US8262856B2 (en) 2007-06-18 2012-09-11 Andritz Inc. Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone
ZA200805042B (en) * 2007-06-18 2009-09-30 Andritz Inc Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone
CN102995478B (en) * 2011-09-09 2015-04-15 吉林化纤集团有限责任公司 Bleaching method for preparing high quality low pollution bamboo wood dissolving slurry
FI123926B (en) 2012-04-03 2013-12-13 Upm Kymmene Corp Method for bleaching pulp
JP6483021B2 (en) * 2013-09-11 2019-03-13 日本製紙株式会社 Method for producing dissolved kraft pulp
US20150184338A1 (en) * 2013-12-31 2015-07-02 Weyerhaeuser Nr Company Treated kraft pulp compositions and methods of making the same
CN104404807A (en) * 2014-09-23 2015-03-11 广西大学 Method for reducing AOX forming amount in chlorine dioxide bleaching process of bagasse pulp
FI128736B (en) * 2018-03-09 2020-11-13 Valmet Automation Oy Method and measurement apparatus for measuring suspension
CN110258160A (en) * 2019-07-23 2019-09-20 广西大学 A kind of efficient high temperature chlorine dioxide pulp method for bleaching of energy-saving safe and bleaching system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE466061B (en) * 1990-04-23 1991-12-09 Eka Nobel Ab Bleaching of chemical pulp by treatment with first a complexing agent and then a peroxide containing substance
SE470065C (en) * 1991-04-30 1995-10-12 Eka Nobel Ab Treatment of chemical pulp with an acid and then a magnesium and calcium compound in chlorine-free bleaching
FI89613C (en) * 1991-12-05 1993-10-25 Valtion Teknillinen Process for enzymatic treatment of cellulose pulp

Also Published As

Publication number Publication date
RU2126862C1 (en) 1999-02-27
FI971508A0 (en) 1997-04-10
FI944808A (en) 1996-04-14
FI102301B (en) 1998-11-13
DE69517532D1 (en) 2000-07-20
CA2160430C (en) 2004-12-07
EP0786029A1 (en) 1997-07-30
ZA958655B (en) 1996-05-13
ES2147303T3 (en) 2000-09-01
SE518080C2 (en) 2002-08-20
FI102301B1 (en) 1998-11-13
JP3534412B2 (en) 2004-06-07
EP0786029B1 (en) 2000-06-14
AU3655995A (en) 1996-05-06
FI971508A (en) 1997-04-10
CA2160430A1 (en) 1996-04-14
NO971682L (en) 1997-06-11
NO971682D0 (en) 1997-04-11
NZ293983A (en) 1999-04-29
SE9503595D0 (en) 1995-10-13
CN1075143C (en) 2001-11-21
JPH10508346A (en) 1998-08-18
CN1168706A (en) 1997-12-24
WO1996012063A1 (en) 1996-04-25
SE9503595L (en) 1996-04-14
PT786029E (en) 2000-09-29

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Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: AHLSTROM MACHINERY OY

GB Transfer or assigment of application

Owner name: AHLSTROM MACHINERY OY

GB Transfer or assigment of application

Owner name: AHLSTROM MACHINERY OY

RF Appeal filed
RF Appeal filed
FCK Appeal rejected

Free format text: APPLICATION REJECTED