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CA2664088C - Treatment of pulp - Google Patents

Treatment of pulp Download PDF

Info

Publication number
CA2664088C
CA2664088C CA2664088A CA2664088A CA2664088C CA 2664088 C CA2664088 C CA 2664088C CA 2664088 A CA2664088 A CA 2664088A CA 2664088 A CA2664088 A CA 2664088A CA 2664088 C CA2664088 C CA 2664088C
Authority
CA
Canada
Prior art keywords
pulp
dewatering
suspension
anionic
cationic
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CA2664088A
Other languages
English (en)
French (fr)
Other versions
CA2664088A1 (en
Inventor
Thomas Christopher Greschik
Hans Johansson-Vestin
Hakan Fagersten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nouryon Chemicals International BV
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 CA2664088A1 publication Critical patent/CA2664088A1/en
Application granted granted Critical
Publication of CA2664088C publication Critical patent/CA2664088C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status 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
    • D21C9/18—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)
CA2664088A 2006-09-22 2007-08-29 Treatment of pulp Expired - Fee Related CA2664088C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06121100.9 2006-09-22
EP06121100 2006-09-22
PCT/SE2007/050588 WO2008036031A1 (en) 2006-09-22 2007-08-29 Treatment of pulp

Publications (2)

Publication Number Publication Date
CA2664088A1 CA2664088A1 (en) 2008-03-27
CA2664088C true CA2664088C (en) 2015-02-24

Family

ID=37814621

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2664088A Expired - Fee Related CA2664088C (en) 2006-09-22 2007-08-29 Treatment of pulp

Country Status (11)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103221608B (zh) 2010-11-16 2016-02-10 巴斯夫欧洲公司 纤维素纸浆片的生产

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 (sv) * 1982-05-07 1991-03-18 Modo Chemetics Ab Foerfarande foer framstaellning av billig hoegutbytesmassa med goda pappersegenskaper
SE8701252D0 (sv) * 1987-03-03 1987-03-25 Eka Nobel Ab Sett vid framstellning av papper
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 (sv) * 2004-04-07 2005-08-16 Kvaerner Pulping Tech Förfarande och anordning för utspädning av avvattnad cellulosamassa

Also Published As

Publication number Publication date
WO2008036031A1 (en) 2008-03-27
ES2612270T3 (es) 2017-05-16
CL2007002697A1 (es) 2008-03-28
EA014734B1 (ru) 2011-02-28
EP2074257A1 (en) 2009-07-01
EP2074257B1 (en) 2016-11-23
CA2664088A1 (en) 2008-03-27
ZA200902765B (en) 2010-03-31
NO20091573L (no) 2009-04-21
AR062866A1 (es) 2008-12-10
PT2074257T (pt) 2017-02-10
EA200970314A1 (ru) 2009-10-30
BRPI0717429A2 (pt) 2013-11-12

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20200831