FR2634233B1 - PROCESS FOR PRODUCING BLANCHED CHEMICOTHERMOMECHANICAL PASTES - Google Patents

PROCESS FOR PRODUCING BLANCHED CHEMICOTHERMOMECHANICAL PASTES

Info

Publication number
FR2634233B1
FR2634233B1 FR8809703A FR8809703A FR2634233B1 FR 2634233 B1 FR2634233 B1 FR 2634233B1 FR 8809703 A FR8809703 A FR 8809703A FR 8809703 A FR8809703 A FR 8809703A FR 2634233 B1 FR2634233 B1 FR 2634233B1
Authority
FR
France
Prior art keywords
chemicothermomechanical
blanched
pastes
producing
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
FR8809703A
Other languages
French (fr)
Other versions
FR2634233A1 (en
Inventor
Devic Michel
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
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 Atochem SA filed Critical Atochem SA
Priority to FR8809703A priority Critical patent/FR2634233B1/en
Priority to NO892805A priority patent/NO176726C/en
Priority to ES89420245T priority patent/ES2012324T3/en
Priority to AT89420245T priority patent/ATE171741T1/en
Priority to EP89420245A priority patent/EP0351330B1/en
Priority to DE68928822T priority patent/DE68928822T2/en
Priority to DE198989420245T priority patent/DE351330T1/en
Priority to FI893372A priority patent/FI96522C/en
Priority to CA000605392A priority patent/CA1335406C/en
Priority to AU37999/89A priority patent/AU616541B2/en
Priority to NZ229902A priority patent/NZ229902A/en
Priority to PT91128A priority patent/PT91128B/en
Priority to JP1180113A priority patent/JPH0268377A/en
Publication of FR2634233A1 publication Critical patent/FR2634233A1/en
Priority to US07/919,389 priority patent/US5298118A/en
Application granted granted Critical
Publication of FR2634233B1 publication Critical patent/FR2634233B1/en
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)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Glass Compositions (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Seasonings (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

Process for manufacturing bleached CTMP pulps comprising a treatment of the lignocellulosic stock with sulphite at a temperature of at least 100 DEG C under saturated steam pressure, and a bleaching operation with the aid of H2O2 in alkaline medium without removal of solid or liquid matter from the pulp from the start of the treatment until the end of the bleaching.
FR8809703A 1988-07-12 1988-07-12 PROCESS FOR PRODUCING BLANCHED CHEMICOTHERMOMECHANICAL PASTES Expired - Fee Related FR2634233B1 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
FR8809703A FR2634233B1 (en) 1988-07-12 1988-07-12 PROCESS FOR PRODUCING BLANCHED CHEMICOTHERMOMECHANICAL PASTES
ES89420245T ES2012324T3 (en) 1988-07-12 1989-07-06 PROCEDURE FOR THE MANUFACTURE OF BLEACHED CHEMICAL THERMOMECHANICAL PASTA.
AT89420245T ATE171741T1 (en) 1988-07-12 1989-07-06 METHOD FOR PRODUCING BLEACHED CHEMITHERMOMECHANIC PULP
EP89420245A EP0351330B1 (en) 1988-07-12 1989-07-06 Process for manufacturing bleached chemithermomechanical pulps
DE68928822T DE68928822T2 (en) 1988-07-12 1989-07-06 Process for the production of bleached chemithermomechanical pulps
DE198989420245T DE351330T1 (en) 1988-07-12 1989-07-06 METHOD FOR PRODUCING BLEACHED CHEMITHERMOMECHANICAL CELLS.
NO892805A NO176726C (en) 1988-07-12 1989-07-06 Process for the preparation of chemothermomechanically bleached pulp
CA000605392A CA1335406C (en) 1988-07-12 1989-07-11 Process for the manufacturing of bleached chemicothermomecanical pulp
FI893372A FI96522C (en) 1988-07-12 1989-07-11 Method for the production of bleached chemithermomechanical pulps
AU37999/89A AU616541B2 (en) 1988-07-12 1989-07-11 Process for the manufacture of bleached chemithermomechanical pulps
NZ229902A NZ229902A (en) 1988-07-12 1989-07-11 Manufacture of bleached chemithermomechanical pulp; sulphite treatment followed by hydrogen peroxide bleaching with no material removed during the process
PT91128A PT91128B (en) 1988-07-12 1989-07-11 PROCESS FOR THE MANUFACTURE OF BRANCHED CHEMICOTERMOMECANIC CELLULOSE PULP
JP1180113A JPH0268377A (en) 1988-07-12 1989-07-12 Method for manufacturing bleached chemithermomechanical pulp
US07/919,389 US5298118A (en) 1988-07-12 1992-07-29 Preparation of bleached chemithermomechanical pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8809703A FR2634233B1 (en) 1988-07-12 1988-07-12 PROCESS FOR PRODUCING BLANCHED CHEMICOTHERMOMECHANICAL PASTES

Publications (2)

Publication Number Publication Date
FR2634233A1 FR2634233A1 (en) 1990-01-19
FR2634233B1 true FR2634233B1 (en) 1995-04-14

Family

ID=9368520

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8809703A Expired - Fee Related FR2634233B1 (en) 1988-07-12 1988-07-12 PROCESS FOR PRODUCING BLANCHED CHEMICOTHERMOMECHANICAL PASTES

Country Status (12)

Country Link
EP (1) EP0351330B1 (en)
JP (1) JPH0268377A (en)
AT (1) ATE171741T1 (en)
AU (1) AU616541B2 (en)
CA (1) CA1335406C (en)
DE (2) DE68928822T2 (en)
ES (1) ES2012324T3 (en)
FI (1) FI96522C (en)
FR (1) FR2634233B1 (en)
NO (1) NO176726C (en)
NZ (1) NZ229902A (en)
PT (1) PT91128B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615874B1 (en) * 1987-05-25 1992-02-21 Atochem PROCESS FOR THE PREPARATION OF CHEMICOTHERMOMECHANICAL PASTES
FR2675518B1 (en) * 1991-04-17 1996-10-18 Atochem PROCESS FOR THE PREPARATION OF HIGH YIELD AND BLEACHED PAPER PULP FROM WOOD CHIPS.
US20030062138A1 (en) * 2001-05-09 2003-04-03 Hache Maurice Joseph Albert Method for brightening mechanical pulps
JP4501329B2 (en) * 2002-03-29 2010-07-14 日本製紙株式会社 Coated paper for gravure printing
BRPI0810574B1 (en) * 2007-04-24 2018-10-23 Basf Se processes for the production of bleached wood particles, and for the production of light to white wood based materials
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
US20100224333A1 (en) * 2009-03-09 2010-09-09 Prasad Duggirala Method and chemical composition to improve efficiency of mechanical pulp
EP2924166A1 (en) 2014-03-25 2015-09-30 Basf Se Method for the manufacture of bleached wood fibre

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE834808C (en) * 1950-08-31 1952-03-24 Degussa Process for bleaching mechanically produced fibrous materials that are difficult to bleach, especially wood pulp
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 (en) * 1977-05-02 1981-01-05 Mo Och Domsjoe Ab METHOD AND DEVICE FOR TREATMENT OF WOOD TIP FOR REMOVAL OF HEAVY METALS AND RESIN
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 (en) * 1987-05-25 1992-02-21 Atochem PROCESS FOR THE PREPARATION OF CHEMICOTHERMOMECHANICAL PASTES
SE460124B (en) * 1988-09-14 1989-09-11 Sunds Defibrator SET FOR PREPARATION OF CHEMICAL MECHANICAL MASS OF LEAVES

Also Published As

Publication number Publication date
AU3799989A (en) 1990-01-18
NO176726C (en) 1995-05-16
JPH0268377A (en) 1990-03-07
AU616541B2 (en) 1991-10-31
PT91128B (en) 1994-12-30
DE351330T1 (en) 1990-06-13
FI893372A0 (en) 1989-07-11
DE68928822T2 (en) 1999-05-27
FI893372A (en) 1990-01-13
EP0351330A1 (en) 1990-01-17
NO892805L (en) 1990-01-15
CA1335406C (en) 1995-05-02
PT91128A (en) 1990-02-08
ATE171741T1 (en) 1998-10-15
EP0351330B1 (en) 1998-09-30
NZ229902A (en) 1991-09-25
ES2012324T3 (en) 1998-11-16
FI96522C (en) 1996-07-10
DE68928822D1 (en) 1998-11-05
ES2012324A4 (en) 1990-03-16
NO176726B (en) 1995-02-06
JPH0250236B2 (en) 1990-11-01
FR2634233A1 (en) 1990-01-19
NO892805D0 (en) 1989-07-06
FI96522B (en) 1996-03-29

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Legal Events

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