DE68928822T2 - Verfahren zur Herstellung von gebleichten chemithermomechanischen Zellstoffen - Google Patents

Verfahren zur Herstellung von gebleichten chemithermomechanischen Zellstoffen

Info

Publication number
DE68928822T2
DE68928822T2 DE68928822T DE68928822T DE68928822T2 DE 68928822 T2 DE68928822 T2 DE 68928822T2 DE 68928822 T DE68928822 T DE 68928822T DE 68928822 T DE68928822 T DE 68928822T DE 68928822 T2 DE68928822 T2 DE 68928822T2
Authority
DE
Germany
Prior art keywords
production
bleached chemithermomechanical
pulps
chemithermomechanical pulps
bleaching
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
DE68928822T
Other languages
English (en)
Other versions
DE68928822D1 (de
Inventor
Michel Devic
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.)
Arkema France SA
Original Assignee
Elf Atochem SA
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 Elf Atochem SA filed Critical Elf Atochem SA
Application granted granted Critical
Publication of DE68928822D1 publication Critical patent/DE68928822D1/de
Publication of DE68928822T2 publication Critical patent/DE68928822T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Seasonings (AREA)
  • Glass Compositions (AREA)
  • Adhesives Or Adhesive Processes (AREA)
DE68928822T 1988-07-12 1989-07-06 Verfahren zur Herstellung von gebleichten chemithermomechanischen Zellstoffen Expired - Fee Related DE68928822T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8809703A FR2634233B1 (fr) 1988-07-12 1988-07-12 Procede de fabrication de pates chimicothermomecaniques blanchies

Publications (2)

Publication Number Publication Date
DE68928822D1 DE68928822D1 (de) 1998-11-05
DE68928822T2 true DE68928822T2 (de) 1999-05-27

Family

ID=9368520

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198989420245T Pending DE351330T1 (de) 1988-07-12 1989-07-06 Verfahren zur herstellung von gebleichten chemithermomechanischen zellstoffen.
DE68928822T Expired - Fee Related DE68928822T2 (de) 1988-07-12 1989-07-06 Verfahren zur Herstellung von gebleichten chemithermomechanischen Zellstoffen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE198989420245T Pending DE351330T1 (de) 1988-07-12 1989-07-06 Verfahren zur herstellung von gebleichten chemithermomechanischen zellstoffen.

Country Status (12)

Country Link
EP (1) EP0351330B1 (de)
JP (1) JPH0268377A (de)
AT (1) ATE171741T1 (de)
AU (1) AU616541B2 (de)
CA (1) CA1335406C (de)
DE (2) DE351330T1 (de)
ES (1) ES2012324T3 (de)
FI (1) FI96522C (de)
FR (1) FR2634233B1 (de)
NO (1) NO176726C (de)
NZ (1) NZ229902A (de)
PT (1) PT91128B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615874B1 (fr) * 1987-05-25 1992-02-21 Atochem Procede de preparation de pates chimicothermomecaniques
FR2675518B1 (fr) * 1991-04-17 1996-10-18 Atochem Procede de preparation de pate a papier a haut rendement et blanchie, a partir de copeaux de bois.
US20030062138A1 (en) * 2001-05-09 2003-04-03 Hache Maurice Joseph Albert Method for brightening mechanical pulps
JP4501329B2 (ja) * 2002-03-29 2010-07-14 日本製紙株式会社 グラビア印刷用塗工紙
CN101678557B (zh) * 2007-04-24 2014-07-02 巴斯夫欧洲公司 生产漂白的木材颗粒和浅色至白色木料的方法
US20100224333A1 (en) * 2009-03-09 2010-09-09 Prasad Duggirala Method and chemical composition to improve efficiency of mechanical pulp
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
EP2924166A1 (de) 2014-03-25 2015-09-30 Basf Se Verfahren zur Herstellung von gebleichtem Holzfaserstoff

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE834808C (de) * 1950-08-31 1952-03-24 Degussa Verfahren zum Bleichen von mechanisch erzeugten, schwer bleichbaren Faserstoffen, insbesondere Holzschliff
US3284283A (en) * 1964-02-17 1966-11-08 Fmc Corp Production of wood pulps including treatment of cellulosic fibers with bisulfite ion followed by alkali metal borohydride
SE416481B (sv) * 1977-05-02 1981-01-05 Mo Och Domsjoe Ab Fofarande och anordning for behandling av vedflis for avlegsnande av tungmetaller och harts
CA1212505A (en) * 1984-07-17 1986-10-14 Rudy Vit Method, process and apparatus for converting wood, wood residue and or biomass into pulp
US4718980A (en) * 1985-12-30 1988-01-12 Weyerhaeuser Company Interstage treatment of mechanical pulp
FR2615874B1 (fr) * 1987-05-25 1992-02-21 Atochem Procede de preparation de pates chimicothermomecaniques
SE460124B (sv) * 1988-09-14 1989-09-11 Sunds Defibrator Saett foer framstaellning av kemimekanisk massa av loevved

Also Published As

Publication number Publication date
FR2634233B1 (fr) 1995-04-14
JPH0268377A (ja) 1990-03-07
CA1335406C (fr) 1995-05-02
NO892805D0 (no) 1989-07-06
PT91128B (pt) 1994-12-30
EP0351330A1 (de) 1990-01-17
NO892805L (no) 1990-01-15
EP0351330B1 (de) 1998-09-30
JPH0250236B2 (de) 1990-11-01
NO176726B (no) 1995-02-06
ES2012324T3 (es) 1998-11-16
FR2634233A1 (fr) 1990-01-19
AU616541B2 (en) 1991-10-31
FI893372A (fi) 1990-01-13
NO176726C (no) 1995-05-16
DE351330T1 (de) 1990-06-13
FI96522B (fi) 1996-03-29
DE68928822D1 (de) 1998-11-05
ATE171741T1 (de) 1998-10-15
NZ229902A (en) 1991-09-25
ES2012324A4 (es) 1990-03-16
FI96522C (fi) 1996-07-10
AU3799989A (en) 1990-01-18
FI893372A0 (fi) 1989-07-11
PT91128A (pt) 1990-02-08

Similar Documents

Publication Publication Date Title
FI98536B (fi) Menetelmä lignoselluloosamateriaalien valkaisemiseksi ja delignifioimiseksi
KR950700462A (ko) 휴지 잉크제거방법(Wastepaper deinking process)
SE9503595D0 (sv) Method of treating cellulose pulps
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
DE68928822T2 (de) Verfahren zur Herstellung von gebleichten chemithermomechanischen Zellstoffen
ATE54475T1 (de) Verfahren zur bleiche und delignifizierung von zellstoffhaltigen produkten.
AU1406788A (en) Pulp bleaching process
FI906076A0 (fi) Menetelmä kemiallisten selluloosamassojen valkaisemiseksi valkaistujen absorboivien massojen valmistamiseksi
ATE61639T1 (de) Verfahren zur herstellung von chemithermomechanischen zellstoffen.
DE59402342D1 (de) Verbessertes Verfahren zur Bleiche von Holzstoffen
SE510528C2 (sv) Metod för modifiering av träfibrer med galaktosoxidas och pappersprodukt innehållande sådana träfibrer
NO920829D0 (no) Fremgangsmaate for bleking av cellulose i alifatiske monokarboksylsyrer
DE59704964D1 (de) Verfahren zur Herstellung von gebleichten Spezialzellstoffen
SE9003784D0 (sv) Foerfarande foer att saenka energifoerbrukningen vid raffinering av fibermaterial

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE GESTHUYSEN, VON ROHR & EGGERT, 45128

8339 Ceased/non-payment of the annual fee