SE9202592L - PROCEDURES FOR MASS PREPARATION - Google Patents

PROCEDURES FOR MASS PREPARATION

Info

Publication number
SE9202592L
SE9202592L SE9202592A SE9202592A SE9202592L SE 9202592 L SE9202592 L SE 9202592L SE 9202592 A SE9202592 A SE 9202592A SE 9202592 A SE9202592 A SE 9202592A SE 9202592 L SE9202592 L SE 9202592L
Authority
SE
Sweden
Prior art keywords
procedures
mass preparation
pulp
treatment
chemical
Prior art date
Application number
SE9202592A
Other languages
Swedish (sv)
Other versions
SE9202592D0 (en
Inventor
T Nishida
Y Kashino
Y Takahara
K Sakai
R Kondo
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of SE9202592L publication Critical patent/SE9202592L/en
Publication of SE9202592D0 publication Critical patent/SE9202592D0/en
Priority to FI950758A priority Critical patent/FI107562B/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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)

Abstract

A process for bleaching pulp by a combination of a microbial treatment and a treatment with a chlorine-free chemical. Pulp can be bleached at a high efficiency while completely preventing the generation of dioxin and the like when no chlorinated chemical is used at all in this invention.
SE9202592A 1991-01-21 1992-08-31 PROCEDURES FOR MASS PREPARATION SE9202592D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI950758A FI107562B (en) 1992-08-31 1995-02-20 Screw-nut connection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3078159A JPH04240287A (en) 1991-01-21 1991-01-21 Bleaching of pulp
PCT/JP1992/000027 WO1992013131A1 (en) 1991-01-21 1992-01-16 Process for bleaching pulp

Publications (2)

Publication Number Publication Date
SE9202592L true SE9202592L (en) 1992-09-09
SE9202592D0 SE9202592D0 (en) 1992-09-09

Family

ID=13654143

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9202592A SE9202592D0 (en) 1991-01-21 1992-08-31 PROCEDURES FOR MASS PREPARATION

Country Status (6)

Country Link
JP (1) JPH04240287A (en)
AU (1) AU647891B2 (en)
CA (1) CA2076679A1 (en)
FI (1) FI923798A0 (en)
SE (1) SE9202592D0 (en)
WO (1) WO1992013131A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3262646B2 (en) * 1993-07-09 2002-03-04 日本製紙株式会社 Pulp bleaching method
JPH0734396A (en) * 1993-07-15 1995-02-03 Nippon Paper Ind Co Ltd Base paper for laminated sheet

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468402A (en) * 1977-11-09 1979-06-01 Kogyo Gijutsuin Property modification of biochemical pulp
US4690895A (en) * 1985-07-15 1987-09-01 Repligen Corporation Use of rLDM™ 1-6 and other ligninolytic enzymes in the bleaching of kraft pulp
DE3636208A1 (en) * 1986-10-24 1988-05-05 Call Hans Peter METHOD FOR DELIGNIFYING AND WHICH BLEACHING LIGNICELLULOSE-CONTAINING OR LIGNINAL MATERIAL OR LIGNIN BY ENZYMATIC TREATMENT
ZA894239B (en) * 1988-06-08 1990-03-28 Int Paper Co Enzymatic delignification of lignocellulosic material
JPH02118191A (en) * 1988-10-26 1990-05-02 Jujo Paper Co Ltd Production of mechanical pulp for papermaking and production of paper
EP0373108A3 (en) * 1988-11-23 1992-03-04 Sandoz Ag Process for bleaching pulp
DE68914112T2 (en) * 1988-11-23 1994-08-04 Sandoz Ag Use of enzymes from Aureobasidium pullulans for pulp bleaching.
US5179021A (en) * 1989-02-10 1993-01-12 Gil Inc. (Now Ici Canada Inc.) Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
JPH02259180A (en) * 1989-03-29 1990-10-19 Kobe Steel Ltd Production of pulp by microbial treatment
FI86896B (en) * 1989-05-04 1992-07-15 Enso Gutzeit Oy FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA.
ZA904441B (en) * 1989-06-22 1991-03-27 Int Paper Co Enzymatic delignification of lignocellulosic material
FI92414B (en) * 1989-11-27 1994-07-29 Enso Gutzeit Oy Process for mass production
JPH03220388A (en) * 1990-01-19 1991-09-27 Kobe Steel Ltd Production of pulp
JPH03269188A (en) * 1990-03-16 1991-11-29 Oji Paper Co Ltd Bleaching of alkali pulp

Also Published As

Publication number Publication date
CA2076679A1 (en) 1992-07-22
FI923798A (en) 1992-08-24
AU1168892A (en) 1992-08-27
AU647891B2 (en) 1994-03-31
WO1992013131A1 (en) 1992-08-06
FI923798A0 (en) 1992-08-24
JPH04240287A (en) 1992-08-27
SE9202592D0 (en) 1992-09-09

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Legal Events

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