NO20091573L - Pulp processing - Google Patents

Pulp processing

Info

Publication number
NO20091573L
NO20091573L NO20091573A NO20091573A NO20091573L NO 20091573 L NO20091573 L NO 20091573L NO 20091573 A NO20091573 A NO 20091573A NO 20091573 A NO20091573 A NO 20091573A NO 20091573 L NO20091573 L NO 20091573L
Authority
NO
Norway
Prior art keywords
pulp processing
suspension
dewatering
treating
drying
Prior art date
Application number
NO20091573A
Other languages
Norwegian (no)
Inventor
Hans Johansson-Vestin
Thomas Christopher Greschik
Hakan Fagersten
Original Assignee
Akzo Nobel Nv
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 Akzo Nobel Nv filed Critical Akzo Nobel Nv
Publication of NO20091573L publication Critical patent/NO20091573L/en

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
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
    • 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
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/143—Agents preventing ageing of paper, e.g. radiation absorbing substances

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)

Abstract

Foreliggende oppfinnelse omhandler en fremgangsmåte for behandling av en vandig suspensjon av bleket papirmasse avledet fra en alkalisk pulpingprosess som omfatter avvanning og tørking av nevnte suspensjon, hvori pH-verdien i suspensjonen som skal behandles spenner fra omkring 6,5 til 5 omkring 12.The present invention relates to a process for treating an aqueous suspension of bleached pulp derived from an alkaline pulping process comprising dewatering and drying said suspension, wherein the pH of the suspension to be treated ranges from about 6.5 to about 5.

NO20091573A 2006-09-22 2009-04-21 Pulp processing NO20091573L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06121100 2006-09-22
PCT/SE2007/050588 WO2008036031A1 (en) 2006-09-22 2007-08-29 Treatment of pulp

Publications (1)

Publication Number Publication Date
NO20091573L true NO20091573L (en) 2009-04-21

Family

ID=37814621

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20091573A NO20091573L (en) 2006-09-22 2009-04-21 Pulp processing

Country Status (11)

Country Link
EP (1) EP2074257B1 (en)
AR (1) AR062866A1 (en)
BR (1) BRPI0717429A2 (en)
CA (1) CA2664088C (en)
CL (1) CL2007002697A1 (en)
EA (1) EA014734B1 (en)
ES (1) ES2612270T3 (en)
NO (1) NO20091573L (en)
PT (1) PT2074257T (en)
WO (1) WO2008036031A1 (en)
ZA (1) ZA200902765B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112013011869B1 (en) 2010-11-16 2020-12-22 Basf Se pulp manufacturing process

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA821268B (en) * 1981-03-06 1983-03-30 Courtaulds Ltd Drying wood pulp
SE441107C (en) * 1982-05-07 1991-03-18 Modo Chemetics Ab PROCEDURES FOR PREPARING CHEAP HIGH-EXCHANGE MASS WITH GOOD PAPER CHARACTERISTICS
SE8701252D0 (en) * 1987-03-03 1987-03-25 Eka Nobel Ab SET FOR PAPER MAKING
US5785810A (en) * 1991-08-21 1998-07-28 Salminen; Reijo K. Wood pulp processing apparatus and method
US5695609A (en) * 1992-01-20 1997-12-09 Kemira Oy Process for producing paper
WO1999050500A1 (en) * 1998-03-31 1999-10-07 Callaway Corporation Improving retention and drainage in alkaline fine paper
US7081184B2 (en) * 2002-05-15 2006-07-25 Weyerhaeuser Company Process for making a very low COD unbleached pulp
SE0400940L (en) * 2004-04-07 2005-08-16 Kvaerner Pulping Tech Method and apparatus for diluting dewatered cellulose pulp

Also Published As

Publication number Publication date
EA200970314A1 (en) 2009-10-30
CL2007002697A1 (en) 2008-03-28
WO2008036031A1 (en) 2008-03-27
ZA200902765B (en) 2010-03-31
ES2612270T3 (en) 2017-05-16
CA2664088C (en) 2015-02-24
AR062866A1 (en) 2008-12-10
CA2664088A1 (en) 2008-03-27
PT2074257T (en) 2017-02-10
EP2074257A1 (en) 2009-07-01
EP2074257B1 (en) 2016-11-23
BRPI0717429A2 (en) 2013-11-12
EA014734B1 (en) 2011-02-28

Similar Documents

Publication Publication Date Title
WO2008076267A3 (en) A process in a (d) stage bleaching of softwood pulps in a presence of mg(oh)2
WO2009088635A3 (en) Enzymatic treatment of pulp for lyocell manufacture
CA2601926A1 (en) Pulp and paper having increased brightness
NO20090337L (en) Improved compositions and processes for paper production
MY177088A (en) Improved compositions and processes for paper production
NO20082535L (en) New pulp and pulping process
SE0400280D0 (en) Enzymatic treatment of pulp to increase strength
ZA200903241B (en) Process for treating cellulose pulp using carboxymethyl-cellulose and pulp thus obtained
TW200628664A (en) Method of treating cellulose fibres
ATE376094T1 (en) METHOD FOR REDUCING THE EXTRACT CONTENT OF HIGH YIELD PULP AND METHOD FOR PRODUCING BLEACHED HIGH YIELD PULP
RU2009126544A (en) METHOD FOR BLEACHING CELLULAR PAPER BY FINITE OZONE PROCESSING AT HIGH TEMPERATURE
NO20091573L (en) Pulp processing
FI20070126A0 (en) Process for de-pulping and using carbon dioxide or (bi) carbonate for this
NO20081407L (en) Use of synthetic metal silicates to increase retention and drainage in a papermaking process
SE0200981D0 (en) Process for bleaching lignocellulose-containing non-wood pulp
DK1865105T3 (en) Process for making paper using cationic amylopectin starch
MX2015012715A (en) Surface treated modified cellulose from chemical kraft fiber and methods of making and using the same.
UY30601A1 (en) CELLULOSE PULP TREATMENT
EA200970367A1 (en) BLEACHING OF CELLULOSE
FI20055331L (en) A method for processing pulp suitable for papermaking
FI974145A (en) A method for improving the drainage of cellulosic pulps
SE0301163D0 (en) Method for steaming of chips in sulphate boiling of cellulose pulp
WO2009069143A3 (en) Synergistic composition and a process for biobleaching of ligno cellulosic pulp
BRPI0603081A (en) method for removing foreign elements from the process of a kraft bleaching plant
TW200632047A (en) Method of dyeing process with strengthened capacity of releasing antibacterial metal ion

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application