HRP930456A2 - Process for the chlorine-free bleaching of fibre dissolving pulp - Google Patents

Process for the chlorine-free bleaching of fibre dissolving pulp Download PDF

Info

Publication number
HRP930456A2
HRP930456A2 HR930456A HRP930456A HRP930456A2 HR P930456 A2 HRP930456 A2 HR P930456A2 HR 930456 A HR930456 A HR 930456A HR P930456 A HRP930456 A HR P930456A HR P930456 A2 HRP930456 A2 HR P930456A2
Authority
HR
Croatia
Prior art keywords
stage
bleaching
eop
phase
oxygen
Prior art date
Application number
HR930456A
Other languages
English (en)
Croatian (hr)
Inventor
Anton Hruschka
Walter Peter
Oskar Hoeglinger
Original Assignee
Chemiefaser Lenzing Ag
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 Chemiefaser Lenzing Ag filed Critical Chemiefaser Lenzing Ag
Publication of HRP930456A2 publication Critical patent/HRP930456A2/hr

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/1057Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/147Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/147Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Artificial Filaments (AREA)
  • Detergent Compositions (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
HR930456A 1990-02-07 1993-03-23 Process for the chlorine-free bleaching of fibre dissolving pulp HRP930456A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0026190A AT395028B (de) 1990-02-07 1990-02-07 Verfahren zum chlorfreien bleichen von kunstfaserzellstoff
YU20691A YU47388B (sh) 1990-02-07 1991-02-06 Postupak za beljenje celuloze za veštačka vlakna bez hlora

Publications (1)

Publication Number Publication Date
HRP930456A2 true HRP930456A2 (en) 1995-12-31

Family

ID=3485841

Family Applications (1)

Application Number Title Priority Date Filing Date
HR930456A HRP930456A2 (en) 1990-02-07 1993-03-23 Process for the chlorine-free bleaching of fibre dissolving pulp

Country Status (22)

Country Link
US (1) US5145557A (fi)
EP (1) EP0441113B1 (fi)
JP (1) JPH04300380A (fi)
AT (2) AT395028B (fi)
BR (1) BR9100516A (fi)
CA (1) CA2035698C (fi)
CZ (1) CZ280077B6 (fi)
DE (1) DE59007341D1 (fi)
DK (1) DK0441113T3 (fi)
ES (1) ES2061008T3 (fi)
FI (1) FI98077C (fi)
HR (1) HRP930456A2 (fi)
IN (1) IN174833B (fi)
LT (1) LT3392B (fi)
LV (1) LV10514B (fi)
NO (1) NO178079C (fi)
PL (1) PL169421B1 (fi)
RU (1) RU2040616C1 (fi)
SI (1) SI9110206B (fi)
SK (1) SK278326B6 (fi)
YU (1) YU47388B (fi)
ZA (1) ZA91840B (fi)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2053035C (en) * 1990-10-12 1997-09-30 Repap Enterprises Inc. Chlorine-free wood pulps and process of making
US5211809A (en) * 1991-05-21 1993-05-18 Air Products And Chemicals, Inc,. Dye removal in oxygen color stripping of secondary fibers
BE1006056A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
SE500113C2 (sv) * 1992-07-09 1994-04-18 Kamyr Ab Sätt vid blekning av massa för omhändertagande av utlösta metaller
US5374333A (en) * 1992-07-30 1994-12-20 Kamyr, Inc. Method for minimizing pulp mill effluents
FR2695947B1 (fr) * 1992-09-18 1994-10-21 Saint Gobain Papier Bois Gie C Procédé de blanchiment de pâtes cellulosiques chimiques.
CA2147244A1 (en) * 1992-10-23 1994-05-11 Marco Solinas Improved ozone bleaching
SE500335C2 (sv) * 1992-10-26 1994-06-06 Sca Wifsta Oestrand Ab Blekning av sulfatmassa med peroxid-ozon-peroxid
US6210527B1 (en) 1994-03-14 2001-04-03 The Boc Group, Inc. Pulp bleaching method wherein an ozone bleaching waste stream is scrubbed to form an oxygen containing stream
SE504424C2 (sv) * 1994-11-04 1997-02-10 Kvaerner Pulping Tech Sätt att fälla ut övergångsmetaller och alkaliska jordartsmetaller ur blekeriavlutar genom att tillsätta alkalisk vätska
SE516030C2 (sv) * 1994-11-14 2001-11-12 Aga Ab Regenerering av en gasblandning från ett ozonbleksteg
US5656130A (en) * 1995-04-28 1997-08-12 Union Camp Holding, Inc. Ambient temperature pulp bleaching with peroxyacid salts
WO1997020983A1 (en) * 1995-12-07 1997-06-12 Beloit Technologies, Inc. Oxygen delignification of medium consistency pulp slurry
AT402827B (de) * 1995-12-22 1997-09-25 Chemiefaser Lenzing Ag Celluloseformkörper und verfahren zu seiner herstellung
EP1728918A3 (de) * 2005-05-12 2006-12-13 Voith Patent GmbH Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension
US9339058B2 (en) 2012-04-19 2016-05-17 R. J. Reynolds Tobacco Company Method for producing microcrystalline cellulose from tobacco and related tobacco product
SE538064C2 (sv) * 2014-06-17 2016-02-23 Valmet Oy Metod för att producera dissolving massa från lignocellulosahaltiga material
FI127444B (fi) 2015-05-27 2018-06-15 Kemira Oyj Menetelmä massan viskositeetin vähentämiseksi liukoselluloosan valmistuksessa

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196043A (en) * 1970-12-21 1980-04-01 Scott Paper Company Kraft pulp bleaching and recovery process
CA966604A (en) * 1970-12-21 1975-04-29 Scott Paper Company Kraft pulp bleaching and recovery process
JPS5430902A (en) 1977-06-27 1979-03-07 Seisan Kaihatsu Kagaku Kenkyus Industrial multistage pulp bleaching method
US4216054A (en) * 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
US4283251A (en) * 1980-01-24 1981-08-11 Scott Paper Company Ozone effluent bleaching
US4619733A (en) * 1983-11-30 1986-10-28 Kooi Boon Lam Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor
AT384837B (de) * 1985-06-27 1988-01-11 Steyrermuehl Papier Verfahren und anordnung zur delignifizierung von zellstoff mit sauerstoff

Also Published As

Publication number Publication date
DE59007341D1 (de) 1994-11-03
IN174833B (fi) 1995-03-18
LV10514A (lv) 1995-02-20
ES2061008T3 (es) 1994-12-01
AT395028B (de) 1992-08-25
FI910601A (fi) 1991-08-08
ATA26190A (de) 1992-01-15
SK278326B6 (en) 1996-11-06
CS9100280A2 (en) 1991-09-15
FI98077B (fi) 1996-12-31
FI910601A0 (fi) 1991-02-07
NO910455D0 (no) 1991-02-06
YU47388B (sh) 1995-01-31
LT3392B (en) 1995-08-25
NO910455L (no) 1991-08-08
FI98077C (fi) 1997-04-10
DK0441113T3 (da) 1994-10-24
US5145557A (en) 1992-09-08
EP0441113A1 (de) 1991-08-14
YU20691A (sh) 1994-05-10
PL169421B1 (pl) 1996-07-31
ZA91840B (en) 1992-01-29
BR9100516A (pt) 1991-10-29
CZ280077B6 (cs) 1995-10-18
ATE112338T1 (de) 1994-10-15
PL288978A1 (en) 1992-01-13
CA2035698C (en) 2003-03-25
LV10514B (en) 1995-10-20
NO178079C (no) 1996-01-17
JPH04300380A (ja) 1992-10-23
SI9110206A (sl) 1998-02-28
LTIP753A (en) 1995-01-31
RU2040616C1 (ru) 1995-07-25
SI9110206B (sl) 2000-04-30
CA2035698A1 (en) 1991-08-08
NO178079B (no) 1995-10-09
EP0441113B1 (de) 1994-09-28

Similar Documents

Publication Publication Date Title
HRP930456A2 (en) Process for the chlorine-free bleaching of fibre dissolving pulp
US4459174A (en) Process for the delignification and bleaching of chemical and semi-chemical cellulosic pulps
US4283251A (en) Ozone effluent bleaching
FI67242B (fi) Saett att avlaegsna lignin fraon oblekt kemisk pappersmassa
JPS61138793A (ja) 強化酸化抽出法
EP0480469A2 (en) Chlorine-free wood pulps and process of making
NO155499B (no) Fremgangsmaate til bleking av cellulose ved hjelp av organisk persyre.
NO300929B1 (no) Fremgangsmåte for bleking av lignocellulosematerialer
US5770010A (en) Pulping process employing nascent oxygen
DE797703T1 (de) Verfahren zum peroxidbleichen von cellulosischen und lignocellulosischen materialen
EP0902120A1 (en) Process for bleaching a paper pulp with ozone and chlorine dioxide
CA2067844A1 (en) Process for bleaching cellulosic material and plant for carrying out the process
US2001268A (en) Pulp treating process
PL171990B1 (pl) Sposób selektywnej delignifikacji chemicznej masy papierniczej PL
Abad et al. Totally chlorine free bleaching of Eucalyptus globulus dissolving pulps delignified with peroxyformic acid and formic acid
KR100194405B1 (ko) 목재펄프의 무염소 표백방법
KR930010534B1 (ko) 펄프의 잉크 제거 및 표백 방법
JPH04316690A (ja) リグノセルロース材料の漂白方法
AU605913B2 (en) A method in the activation of lignocellulosic material with a gas containing nitrogen dioxide
EP1161593A1 (en) Oxygen delignification of pulp in the presence of carbonates as alkali
WO1991000386A1 (en) A method for bleaching kraft pulp with a mixture of oxygen and peroxide
CA2032315C (en) Process for bleaching of chemical cellulose pulp
JPH04272289A (ja) セルロースパルプの酸素漂白法
JP2000273782A (ja) 漂白パルプの製造方法
US331323A (en) Baoul piebee pictet

Legal Events

Date Code Title Description
A1OB Publication of a patent application
AIPI Request for the grant of a patent on the basis of a substantive examination of a patent application
ODBC Application rejected