SE0004438D0 - Enviormentally-friendly fiber line for producing bleached chemical pulp - Google Patents
Enviormentally-friendly fiber line for producing bleached chemical pulpInfo
- 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
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
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).
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)
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 (ClO2) bleaching technology of salix psammophila 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)
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 |
EP0565625A1 (en) * | 1991-01-03 | 1993-10-20 | Union Camp Patent Holding, Inc. | 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 |
-
2000
- 2000-12-01 CA CA002327248A patent/CA2327248A1/en not_active Abandoned
- 2000-12-01 JP JP2000367014A patent/JP2001200486A/en not_active Ceased
- 2000-12-01 SE SE0004438A patent/SE0004438L/en not_active Application Discontinuation
- 2000-12-04 FI FI20002647A patent/FI20002647A/en unknown
-
2003
- 2003-08-05 US US10/633,536 patent/US20040026051A1/en not_active Abandoned
-
2007
- 2007-08-07 FI FI20070590A patent/FI20070590A/en unknown
-
2009
- 2009-01-09 JP JP2009003068A patent/JP2009074234A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
SE0004438L (en) | 2001-06-03 |
JP2009074234A (en) | 2009-04-09 |
FI20002647A (en) | 2001-06-03 |
JP2001200486A (en) | 2001-07-27 |
CA2327248A1 (en) | 2001-06-02 |
FI20070590A (en) | 2007-08-07 |
FI20002647A0 (en) | 2000-12-04 |
US20040026051A1 (en) | 2004-02-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |