NZ228308A - Alkaline bleaching of cellulose pulp - Google Patents

Alkaline bleaching of cellulose pulp

Info

Publication number
NZ228308A
NZ228308A NZ228308A NZ22830889A NZ228308A NZ 228308 A NZ228308 A NZ 228308A NZ 228308 A NZ228308 A NZ 228308A NZ 22830889 A NZ22830889 A NZ 22830889A NZ 228308 A NZ228308 A NZ 228308A
Authority
NZ
New Zealand
Prior art keywords
pulp
hardwood
cellulose pulp
chlorine content
enzyme
Prior art date
Application number
NZ228308A
Other languages
English (en)
Inventor
Mirja Salkinoja-Salonen
Marja Vaheri
Marja Koljonen
Original Assignee
Suomen Sokeri 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=8526077&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NZ228308(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Suomen Sokeri Oy filed Critical Suomen Sokeri Oy
Publication of NZ228308A publication Critical patent/NZ228308A/xx

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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • 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
    • D21C9/1026—Other features in bleaching processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Hard Magnetic Materials (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Detergent Compositions (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
NZ228308A 1988-03-14 1989-03-13 Alkaline bleaching of cellulose pulp NZ228308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI881192A FI81395B (fi) 1988-03-14 1988-03-14 Foerfarande foer blekning av cellulosamassa.

Publications (1)

Publication Number Publication Date
NZ228308A true NZ228308A (en) 1990-06-26

Family

ID=8526077

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ228308A NZ228308A (en) 1988-03-14 1989-03-13 Alkaline bleaching of cellulose pulp

Country Status (12)

Country Link
EP (1) EP0407421B1 (xx)
JP (1) JPH03505758A (xx)
AT (1) ATE135429T1 (xx)
AU (1) AU626846B2 (xx)
BR (1) BR8907314A (xx)
CA (1) CA1334581C (xx)
DE (1) DE68925967T2 (xx)
DK (1) DK175185B1 (xx)
FI (1) FI81395B (xx)
NO (1) NO174722C (xx)
NZ (1) NZ228308A (xx)
WO (1) WO1989008738A1 (xx)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5298405A (en) * 1986-04-30 1994-03-29 Alko Limited Enzyme preparations with recombinantly-altered cellulose profiles and methods for their production
FI90888B (fi) * 1989-02-14 1993-12-31 Enso Gutzeit Oy Menetelmä selluloosamassan valkaisemiseksi
FI86896B (fi) * 1989-05-04 1992-07-15 Enso Gutzeit Oy Foerfarande foer blekning av cellulosamassa.
DK420289D0 (da) * 1989-08-25 1989-08-25 Novo Nordisk As Fremgangsmaade til behandling af lignocellulosepulp
NZ235679A (en) * 1989-10-18 1993-01-27 Int Paper Co Bleaching lignocellulosic pulp using (a) treatment with xylanase and (b) one or more chemical bleaching stages
SE465320B (sv) * 1990-01-10 1991-08-26 Korsnaes Ab Preparat som uppvisar enzymatisk delignifieringsaktivitet, saett att framstaella detsamma och tillaempningar daerav
FI88315C (fi) * 1990-04-04 1993-04-26 Enso Gutzeit Oy Foerfarande foer blekning av cellulosamassa
US5837515A (en) * 1990-05-16 1998-11-17 Alko-Yhtiot Oy Enzyme preparations and methods for their production
GB9018426D0 (en) * 1990-08-22 1990-10-03 Sandoz Ltd Improvements in or relating to novel compounds
NZ239500A (en) * 1990-08-24 1993-08-26 Novo Nordisk As Xylanases obtained from bacillus pumilus and use in a lignocellulosic chemical pulping process
DE4129739A1 (de) * 1990-09-11 1992-03-12 Sandoz Ag Chlorfreies bleichen von papierpulpe
FI108800B (fi) * 1991-05-07 2002-03-28 Iogen Corp Menetelmä ja laitteisto entsyymin käyttämiseksi paperimassan valmistuksessa ja valkaisussa
US5369024A (en) * 1992-03-25 1994-11-29 The United States Of America As Represented By The Secretary Of Agriculture Xylanase from streptomyces roseiscleroticus NRRL-11019 for removing color from kraft wood pulps
US5498534A (en) * 1992-03-25 1996-03-12 The United States Of America As Represented By The Secretary Of Agriculture Method of removing color from wood pulp using xylanase from streptomyces roseiscleroticus NRRL B-11019
US5935836A (en) * 1994-07-29 1999-08-10 Rohm Enzyme Finland Oy Actinomadura xylanase sequences and methods of use
US5871730A (en) * 1994-07-29 1999-02-16 Universite De Sherbrooke Thermostable xylanase DNA, protein and methods of use
US6300114B1 (en) 1994-07-29 2001-10-09 Rohm Enzyme Finland Oy Sequences of xylanase and xylanase expression vectors
US7816129B2 (en) 1994-07-29 2010-10-19 Ab Enzymes Gmbh Production and secretion of proteins of bacterial origin in filamentous fungi
US7320741B2 (en) 2001-01-18 2008-01-22 Iogen Bio-Products Corporation Method of xylanase treatment in a chlorine dioxide bleaching sequence
CN100346030C (zh) * 2002-03-06 2007-10-31 埃欧金生物制品公司 化学纸浆的木聚糖酶处理
CN104963206A (zh) * 2014-12-11 2015-10-07 华东理工常熟研究院有限公司 酶改性纸浆纤维、木塑复合材料及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ216726A (en) * 1985-07-15 1990-08-28 Repligen Corp Use of lignin-degrading enzymes from phanerochaete chrysosporium for treatment of wood pulp and e1 effluent
ZA894239B (en) * 1988-06-08 1990-03-28 Int Paper Co Enzymatic delignification of lignocellulosic material
EP0373107B1 (en) * 1988-11-23 1994-03-23 Sandoz Ag Use of enzymes of Aureobasidium pullulans in pulp bleaching

Also Published As

Publication number Publication date
JPH03505758A (ja) 1991-12-12
DE68925967T2 (de) 1996-09-12
FI81395B (fi) 1990-06-29
AU626846B2 (en) 1992-08-13
DK211990A (da) 1990-11-07
DK175185B1 (da) 2004-06-28
DK211990D0 (da) 1990-09-04
WO1989008738A1 (en) 1989-09-21
FI881192A0 (fi) 1988-03-14
AU3292389A (en) 1989-10-05
EP0407421A1 (en) 1991-01-16
CA1334581C (en) 1995-02-28
FI881192A (fi) 1989-09-15
NO903913L (no) 1990-09-07
NO174722B (no) 1994-03-14
EP0407421B1 (en) 1996-03-13
DE68925967D1 (de) 1996-04-18
NO174722C (no) 1994-06-22
NO903913D0 (no) 1990-09-07
ATE135429T1 (de) 1996-03-15
BR8907314A (pt) 1991-03-19

Similar Documents

Publication Publication Date Title
NZ228308A (en) Alkaline bleaching of cellulose pulp
FR2457339B1 (xx)
SE8504236L (sv) Forbettrad oxidativ extraktion
SE8100373L (sv) Forfarande vid ozonblekning av pappersmassa
ES2050747T3 (es) Procedimiento para el blanqueo de pasta papelera.
AU4170493A (en) Process for the delignification of a chemical paper pulp
CA2157109A1 (en) Method of bleaching pulp with chlorine-free chemicals
ES2061857T3 (es) Procedimiento para el blanqueo de pasta papelera.
NO902206D0 (no) Fremgangsmaate ved delignifisering av lignocellulosefibre.
ZA921626B (en) Process for bleaching a chemical paper pulp and application of this process to the bleaching of a kraft pulp.
NO179842C (no) Fremgangsmåte for papirtilvirkning ved avvanning av masse
AU2202188A (en) Method of bleaching or delignification of cellulose pulp with oxygen
SE9600773D0 (sv) Medium consistency ozone brightening of high consistency ozone bleached pulp
YU45352B (en) Process for delignification of cellulose materials
NO168490C (no) Fremgangsmaate ved delignifisering av celluloseholdig materiale.
GB1465001A (en) Oxygen based bleaching of kraft pulp
DE3563548D1 (en) Process for preparing chemical wood pulps with a view to bleaching

Legal Events

Date Code Title Description
RENW Renewal (renewal fees accepted)