FI971508A0 - Menetelmä heksenuronihapporyhmien poistamiseksi selluloosamassasta lämpökäsittelyllä - Google Patents

Menetelmä heksenuronihapporyhmien poistamiseksi selluloosamassasta lämpökäsittelyllä

Info

Publication number
FI971508A0
FI971508A0 FI971508A FI971508A FI971508A0 FI 971508 A0 FI971508 A0 FI 971508A0 FI 971508 A FI971508 A FI 971508A FI 971508 A FI971508 A FI 971508A FI 971508 A0 FI971508 A0 FI 971508A0
Authority
FI
Finland
Prior art keywords
heat treatment
acid groups
cellulose pulp
hexenuronic acid
removing hexenuronic
Prior art date
Application number
FI971508A
Other languages
English (en)
Swedish (sv)
Other versions
FI971508A (fi
Inventor
Tapani Vuorinen
Anita Teleman
Johanna Buchert
Maija Tenkanen
Original Assignee
Ahlstrom Machinery 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=8541578&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI971508(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ahlstrom Machinery Oy filed Critical Ahlstrom Machinery Oy
Priority to FI971508A priority Critical patent/FI971508A/fi
Publication of FI971508A0 publication Critical patent/FI971508A0/fi
Publication of FI971508A publication Critical patent/FI971508A/fi

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
FI971508A 1994-10-13 1997-04-10 Menetelmä heksenuronihapporyhmien poistamiseksi selluloosamassasta lämpökäsittelyllä FI971508A (fi)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI971508A FI971508A (fi) 1994-10-13 1997-04-10 Menetelmä heksenuronihapporyhmien poistamiseksi selluloosamassasta lämpökäsittelyllä

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI944808A FI102301B (fi) 1994-10-13 1994-10-13 Menetelmä selluloosamassojen käsittelemiseksi
PCT/FI1995/000566 WO1996012063A1 (en) 1994-10-13 1995-10-12 Method for removal of hexenuronic acid groups in cellulose pulp by heat treatment
FI971508A FI971508A (fi) 1994-10-13 1997-04-10 Menetelmä heksenuronihapporyhmien poistamiseksi selluloosamassasta lämpökäsittelyllä

Publications (2)

Publication Number Publication Date
FI971508A0 true FI971508A0 (fi) 1997-04-10
FI971508A FI971508A (fi) 1997-04-10

Family

ID=8541578

Family Applications (2)

Application Number Title Priority Date Filing Date
FI944808A FI102301B (fi) 1994-10-13 1994-10-13 Menetelmä selluloosamassojen käsittelemiseksi
FI971508A FI971508A (fi) 1994-10-13 1997-04-10 Menetelmä heksenuronihapporyhmien poistamiseksi selluloosamassasta lämpökäsittelyllä

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FI944808A FI102301B (fi) 1994-10-13 1994-10-13 Menetelmä selluloosamassojen käsittelemiseksi

Country Status (14)

Country Link
EP (1) EP0786029B1 (fi)
CN (1) CN1075143C (fi)
AU (1) AU3655995A (fi)
CA (1) CA2160430C (fi)
DE (1) DE69517532D1 (fi)
ES (1) ES2147303T3 (fi)
FI (2) FI102301B (fi)
NO (1) NO971682L (fi)
NZ (1) NZ293983A (fi)
PT (1) PT786029E (fi)
RU (1) RU2126862C1 (fi)
SE (1) SE518080C2 (fi)
WO (1) WO1996012063A1 (fi)
ZA (1) ZA958655B (fi)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105701B (fi) * 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Menetelmä ja laitteisto massan käsittelemiseksi
US6306334B1 (en) 1996-08-23 2001-10-23 The Weyerhaeuser Company Process for melt blowing continuous lyocell fibers
US6221487B1 (en) 1996-08-23 2001-04-24 The Weyerhauser Company Lyocell fibers having enhanced CV properties
US6235392B1 (en) 1996-08-23 2001-05-22 Weyerhaeuser Company Lyocell fibers and process for their preparation
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
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
US6210801B1 (en) 1996-08-23 2001-04-03 Weyerhaeuser Company Lyocell fibers, and compositions for making same
BE1010677A3 (fr) * 1996-10-11 1998-11-03 Solvay Interox Procede de delignification et de blanchiment de pate a papier chimique.
BE1010880A3 (fr) * 1997-01-27 1999-02-02 Solvay Interox Procede de fabrication de pate a papier chimique.
FI122654B (fi) * 1997-12-08 2012-05-15 Ovivo Luxembourg Sarl Menetelmä paperisellumassan valmistamiseksi
FI119383B (fi) * 1998-03-06 2008-10-31 Andritz Oy Menetelmä massan käsittelemiseksi
US6686039B2 (en) 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell pulps
US6797113B2 (en) 1999-02-24 2004-09-28 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell pulps method
US6685856B2 (en) 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell products method
US6686040B2 (en) 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell products
AU5317700A (en) * 1999-06-08 2000-12-28 Eastern Pulp And Paper Corporation Bleaching pulp with high-pressure O2
SE516090C2 (sv) * 2000-05-31 2001-11-19 Kvaerner Pulping Tech Förfarande för reglering av en process för tillverkning av pappersmassa genom optisk mätning av mängden hexenuronsyra
JP4603298B2 (ja) * 2004-06-08 2010-12-22 日本製紙株式会社 パルプの漂白方法
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
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
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
CN102995478B (zh) * 2011-09-09 2015-04-15 吉林化纤集团有限责任公司 一种制备高质量低污染竹材溶解浆的漂白方法
FI123926B (fi) 2012-04-03 2013-12-13 Upm Kymmene Corp Menetelmä sellun valkaisemiseksi
JP6483021B2 (ja) * 2013-09-11 2019-03-13 日本製紙株式会社 溶解クラフトパルプの製造方法
US20150184338A1 (en) * 2013-12-31 2015-07-02 Weyerhaeuser Nr Company Treated kraft pulp compositions and methods of making the same
CN104404807A (zh) * 2014-09-23 2015-03-11 广西大学 一种减少蔗渣浆二氧化氯漂白过程aox形成量的方法
FI128736B (fi) * 2018-03-09 2020-11-13 Valmet Automation Oy Menetelmä ja mittauslaite suspension mittaamiseksi
CN110258160A (zh) * 2019-07-23 2019-09-20 广西大学 一种安全节能高效的高温二氧化氯纸浆漂白方法及漂白装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne
SE470065C (sv) * 1991-04-30 1995-10-12 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
FI89613C (fi) * 1991-12-05 1993-10-25 Valtion Teknillinen Foerfarande foer enzymatisk behandling av cellulosamassor

Also Published As

Publication number Publication date
SE518080C2 (sv) 2002-08-20
PT786029E (pt) 2000-09-29
AU3655995A (en) 1996-05-06
ES2147303T3 (es) 2000-09-01
NO971682D0 (no) 1997-04-11
FI102301B1 (fi) 1998-11-13
JP3534412B2 (ja) 2004-06-07
NO971682L (no) 1997-06-11
FI102301B (fi) 1998-11-13
ZA958655B (en) 1996-05-13
RU2126862C1 (ru) 1999-02-27
WO1996012063A1 (en) 1996-04-25
EP0786029A1 (en) 1997-07-30
CA2160430C (en) 2004-12-07
DE69517532D1 (de) 2000-07-20
EP0786029B1 (en) 2000-06-14
FI944808A0 (fi) 1994-10-13
NZ293983A (en) 1999-04-29
FI971508A (fi) 1997-04-10
FI944808A (fi) 1996-04-14
JPH10508346A (ja) 1998-08-18
SE9503595L (sv) 1996-04-14
CA2160430A1 (en) 1996-04-14
CN1075143C (zh) 2001-11-21
CN1168706A (zh) 1997-12-24
SE9503595D0 (sv) 1995-10-13

Similar Documents

Publication Publication Date Title
FI971508A (fi) Menetelmä heksenuronihapporyhmien poistamiseksi selluloosamassasta lämpökäsittelyllä
FI96337B (fi) Menetelmä veden poistamiseksi paperista
KR960704082A (ko) 저 잔자성 재료로 이루어진 하나이상의 부재의 처리방법(Method to process at least one member of low-retentivity)
FI963361A (fi) Menetelmä ja laitteisto massan valmistamiseksi sahanpurusta
FR2748277B1 (fr) Procede de fabrication de produits alveolaires cellulosiques produits alveolaires cellulosiques
FI954167A (fi) Menetelmä lauhteiden puhdistamiseksi
FI991220A0 (fi) Menetelmä massan käsittelemiseksi
DE69610187D1 (de) Verfahren zum Herstellen von aromatischen Carbonaten
FI953197A0 (fi) Menetelmä aminoitujen kuitujen valmistamiseksi regeneroidusta selluloosasta
FI973173A (fi) Menetelmä kondensaatin käsittelemiseksi
DE69521462T2 (de) Verfahren zum Herstellen von Papierrohren
ITMI950393A0 (it) Metodo per il trattamento di piante
MA23532A1 (fr) Procede de traitement des suspensions huileuses
FI954113A (fi) Menetelmä ligniinin poistamiseksi kemiallisesta paperimassasta
FI964715A (fi) Menetelmä selluloosamassan valkaisemiseksi
DE69504476T2 (de) Verfahren zum herstellen von polyflouroxetanen
DE59910794D1 (de) Verfahren zur Behandlung von Cellulosefasern
BR9600208A (pt) Processo para tratamento de água
FI980519A (fi) Menetelmä massan käsittelemiseksi
FI961930A0 (fi) Menetelmä ja laitteisto alkalisen sellunvalmistuspMenetelmä ja laitteisto alkalisen sellunvalmistusprosessin tehostamiseksi rosessin tehostamiseksi
FI951166A0 (fi) Massan valkaisumenetelmä
FI990127A0 (fi) Menetelmä massan käsittelemiseksi
FI970419A (fi) Menetelmä selluloosamassan valmistamiseksi
FR2728566B1 (fr) Procede de preparation de pentene-nitriles
FI964843A0 (fi) Menetelmä massan käsittelemiseksi