PT86482A - PROCESS FOR TREATING OZONE D: A CELLULOSIC PULP - Google Patents

PROCESS FOR TREATING OZONE D: A CELLULOSIC PULP

Info

Publication number
PT86482A
PT86482A PT86482A PT8648287A PT86482A PT 86482 A PT86482 A PT 86482A PT 86482 A PT86482 A PT 86482A PT 8648287 A PT8648287 A PT 8648287A PT 86482 A PT86482 A PT 86482A
Authority
PT
Portugal
Prior art keywords
cellulosic pulp
treating ozone
ozone
treating
cellulosic
Prior art date
Application number
PT86482A
Other languages
French (fr)
Portuguese (pt)
Other versions
PT86482B (en
Inventor
Jean Paul Delaroche
Jean Claude Cleuet
Original Assignee
Beghin Say 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 Beghin Say Sa filed Critical Beghin Say Sa
Publication of PT86482A publication Critical patent/PT86482A/en
Publication of PT86482B publication Critical patent/PT86482B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/24—Extrusion presses; Dies therefor using screws or worms
    • B30B11/246—Screw constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/24—Extrusion presses; Dies therefor using screws or worms
    • B30B11/243—Extrusion presses; Dies therefor using screws or worms using two or more screws working in the same chamber
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
PT86482A 1986-12-31 1987-12-30 PROCESS FOR THE TREATMENT OF A CELLULOSE PASTE WITH OZONE PT86482B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8618447A FR2609067B1 (en) 1986-12-31 1986-12-31 PROCESS FOR THE OZONE TREATMENT OF A CELLULOSIC PASTE

Publications (2)

Publication Number Publication Date
PT86482A true PT86482A (en) 1988-01-01
PT86482B PT86482B (en) 1990-11-20

Family

ID=9342498

Family Applications (1)

Application Number Title Priority Date Filing Date
PT86482A PT86482B (en) 1986-12-31 1987-12-30 PROCESS FOR THE TREATMENT OF A CELLULOSE PASTE WITH OZONE

Country Status (9)

Country Link
EP (1) EP0276608B1 (en)
JP (1) JP2547246B2 (en)
CA (1) CA1326942C (en)
DE (1) DE3768936D1 (en)
ES (1) ES2021083B3 (en)
FR (1) FR2609067B1 (en)
NO (1) NO883795D0 (en)
PT (1) PT86482B (en)
WO (1) WO1988005095A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620744A1 (en) * 1987-09-17 1989-03-24 Degremont PROCESS FOR THE OZONE TREATMENT OF LIGNO-CELLULOSIC MATERIALS, IN PARTICULAR PAPER PULP AND REACTOR FOR THE IMPLEMENTATION OF SAID METHOD
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5229150A (en) * 1990-10-16 1993-07-20 Besst Frozen Products, Inc. Food processing apparatus and method
US5151288A (en) * 1990-10-16 1992-09-29 Besst Frozen Products, Inc. Food processing apparatus and method
US5030465A (en) * 1990-10-16 1991-07-09 Besst Frozen Products, Inc. Apparatus and method for making frozen confections
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
EP0515303B2 (en) * 1991-05-24 2001-07-04 Union Camp Patent Holding, Inc. Method for ozone bleaching
FR2937656B1 (en) * 2008-10-24 2010-11-19 Arkema France PROCESS FOR PRODUCING PAPER PULP

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO131996C (en) * 1973-10-04 1975-09-03 Papirind Forskningsinst
FR2436844A2 (en) * 1978-09-19 1980-04-18 Creusot Loire Converting lignocellulose material into fibre pulp - for paper-making, by introducing bleach whilst the lignocellulose is being broken down
NO142091C (en) * 1977-10-17 1980-06-25 Myrens Verksted As PROCEDURE FOR OZONE TREATMENT OF REFINO MECHANICAL AND THERMOMECHANICAL MASS.
DE3422087A1 (en) * 1983-06-25 1985-01-03 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Apparatus for the production of wood pulp

Also Published As

Publication number Publication date
EP0276608A1 (en) 1988-08-03
CA1326942C (en) 1994-02-15
ES2021083B3 (en) 1991-10-16
FR2609067A1 (en) 1988-07-01
FR2609067B1 (en) 1990-06-15
PT86482B (en) 1990-11-20
JP2547246B2 (en) 1996-10-23
JPH01501805A (en) 1989-06-22
DE3768936D1 (en) 1991-05-02
NO883795L (en) 1988-08-25
WO1988005095A1 (en) 1988-07-14
NO883795D0 (en) 1988-08-25
EP0276608B1 (en) 1991-03-27

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Legal Events

Date Code Title Description
NF3A Restitutio in integrum

Effective date: 19940209