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SE0004438D0 - Enviormentally-friendly fiber line for producing bleached chemical pulp - Google Patents

Enviormentally-friendly fiber line for producing bleached chemical pulp

Info

Publication number
SE0004438D0
SE0004438D0 SE0004438A SE0004438A SE0004438D0 SE 0004438 D0 SE0004438 D0 SE 0004438D0 SE 0004438 A SE0004438 A SE 0004438A SE 0004438 A SE0004438 A SE 0004438A SE 0004438 D0 SE0004438 D0 SE 0004438D0
Authority
SE
Sweden
Prior art keywords
zend
treatment
pulp
enviormentally
chemical pulp
Prior art date
Application number
SE0004438A
Other languages
Swedish (sv)
Other versions
SE0004438L (en
Inventor
Bertil Stroemberg
Original Assignee
Andritz Ahlstrom Inc
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 Andritz Ahlstrom Inc filed Critical Andritz Ahlstrom Inc
Publication of SE0004438D0 publication Critical patent/SE0004438D0/en
Publication of SE0004438L publication Critical patent/SE0004438L/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
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • 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
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
    • 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
    • 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
    • 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)

Abstract

An environmentally friendly (ECF), yet commercially viable, process produces fully bleached (typically having a brightness of over 89 or 90% ISO) cellulose pulp using a (ZEND) treatment. Typically pulp is produced in an essentially sulphur-free pulping process (such as an soda/AQ process), and is then treated by a D-EO-, D-EP-, or D-EOP-sequence before the (ZEND) treatment. Optional oxygen delignification may also be used, and subsequent elemental-chlorine-free bleaching sequences may also be employed, although normally not necessary since the pulp after the (ZEND) treatment has high brightness and good viscosity (e.g. over 21 cP).
SE0004438A 1999-12-02 2000-12-01 Environmentally friendly fiber line for the production of bleached chemical pulp SE0004438L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16753799P 1999-12-02 1999-12-02
US72242000A 2000-11-28 2000-11-28

Publications (2)

Publication Number Publication Date
SE0004438D0 true SE0004438D0 (en) 2000-12-01
SE0004438L SE0004438L (en) 2001-06-03

Family

ID=26863255

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0004438A SE0004438L (en) 1999-12-02 2000-12-01 Environmentally friendly fiber line for the production of bleached chemical pulp

Country Status (5)

Country Link
US (1) US20040026051A1 (en)
JP (2) JP2001200486A (en)
CA (1) CA2327248A1 (en)
FI (2) FI20002647A (en)
SE (1) SE0004438L (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8317975B2 (en) * 2004-04-20 2012-11-27 The Research Foundation Of The State University Of New York Product and processes from an integrated forest biorefinery
US20060201642A1 (en) * 2005-03-08 2006-09-14 Andritz Inc. Methods of treating chemical cellulose pulp
US7587251B2 (en) * 2005-12-21 2009-09-08 Rockwell Automation Technologies, Inc. Remote monitoring and control of an I/O module
US8920603B2 (en) * 2006-10-11 2014-12-30 Akzo Nobel N.V. Bleaching of pulp
FR2910027B1 (en) * 2006-12-13 2009-11-06 Itt Mfg Enterprises Inc PROCESS FOR WHITENING CHEMICAL STRIPPING PASTES BY FINAL OZONE TREATMENT AT HIGH TEMPERATURE
DE102007006582A1 (en) * 2007-02-09 2008-09-04 Hiwin Mikrosystem Corp. External control assembly for quick-release device of linear actuator, has retaining rib and retaining recess respectively provided on outer periphery of collar and inner wall of assembling hole
US8262856B2 (en) * 2007-06-18 2012-09-11 Andritz Inc. Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone
US9499637B2 (en) * 2014-06-23 2016-11-22 Api Intellectual Property Holdings, Llc Nanocellulose compositions and processes to produce same
CN104611972A (en) * 2015-02-12 2015-05-13 北京京诚新星造纸工程技术有限公司 Chlorine dioxide bleaching process of salix mongolica pulp
ITUB20153369A1 (en) * 2015-09-03 2017-03-03 Nicholas Iarocci Cigarette paper filter and filter paper pad
KR102223405B1 (en) * 2019-04-15 2021-03-08 (주)리아씨엔에프 Bleaching method for manufacturing process of sea algae pulp

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4619733A (en) * 1983-11-30 1986-10-28 Kooi Boon Lam Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
US4959124A (en) * 1989-05-05 1990-09-25 International Paper Company Method of bleaching kraft pulp in a DZED sequence
CA2099881A1 (en) * 1991-01-03 1992-07-04 Omar F. Ali Chlorine-free process for bleaching lignocellulosic pulp
FR2719854B1 (en) * 1994-05-11 1996-06-21 Atochem Elf Sa Process for the preparation of delignified and bleached chemical paper pulps.
US5645687A (en) * 1995-07-10 1997-07-08 Champion International Corporation Process for manufacturing bleached pulp with reduced chloride production
JPH11286884A (en) * 1998-04-03 1999-10-19 Akio Onda Pulp cooking liquor and production of pulp
JP2000290887A (en) * 1999-04-02 2000-10-17 Oji Paper Co Ltd Bleaching of lignocellulose

Also Published As

Publication number Publication date
FI20070590A (en) 2007-08-07
FI20002647A0 (en) 2000-12-04
CA2327248A1 (en) 2001-06-02
FI20002647A (en) 2001-06-03
US20040026051A1 (en) 2004-02-12
SE0004438L (en) 2001-06-03
JP2009074234A (en) 2009-04-09
JP2001200486A (en) 2001-07-27

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Legal Events

Date Code Title Description
NAV Patent application has lapsed