AU528837B2 – Ozone bleaching of pulp
– Google Patents
AU528837B2 – Ozone bleaching of pulp
– Google Patents
Ozone bleaching of pulp
Info
Publication number
AU528837B2
AU528837B2
AU54566/80A
AU5456680A
AU528837B2
AU 528837 B2
AU528837 B2
AU 528837B2
AU 54566/80 A
AU54566/80 A
AU 54566/80A
AU 5456680 A
AU5456680 A
AU 5456680A
AU 528837 B2
AU528837 B2
AU 528837B2
Authority
AU
Australia
Prior art keywords
pulp
ozone bleaching
bleaching
ozone
Prior art date
1979-01-11
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.)
Ceased
Application number
AU54566/80A
Other versions
AU5456680A
(en
Inventor
Michael Dean Meredith
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.)
Weyerhaeuser Co
Original Assignee
Weyerhaeuser Co
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.)
1979-01-11
Filing date
1980-01-11
Publication date
1983-05-12
1980-01-11
Application filed by Weyerhaeuser Co
filed
Critical
Weyerhaeuser Co
1980-09-04
Publication of AU5456680A
publication
Critical
patent/AU5456680A/en
1983-05-12
Application granted
granted
Critical
1983-05-12
Publication of AU528837B2
publication
Critical
patent/AU528837B2/en
2000-01-11
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
D21C9/1073—Bleaching ; Apparatus therefor with O3
AU54566/80A
1979-01-11
1980-01-11
Ozone bleaching of pulp
Ceased
AU528837B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US06/002,491
US4229252A
(en)
1979-01-11
1979-01-11
Additives for ozone bleaching
US2491
1979-01-11
Publications (2)
Publication Number
Publication Date
AU5456680A
AU5456680A
(en)
1980-09-04
AU528837B2
true
AU528837B2
(en)
1983-05-12
Family
ID=21701034
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU54566/80A
Ceased
AU528837B2
(en)
1979-01-11
1980-01-11
Ozone bleaching of pulp
Country Status (9)
Country
Link
US
(1)
US4229252A
(en)
JP
(1)
JPS55112390A
(en)
AU
(1)
AU528837B2
(en)
CA
(1)
CA1131410A
(en)
FI
(1)
FI72357C
(en)
FR
(1)
FR2446355A1
(en)
NO
(1)
NO800048L
(en)
NZ
(1)
NZ192582A
(en)
SE
(1)
SE442027B
(en)
Families Citing this family (27)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2475084A1
(en)
*
1979-11-23
1981-08-07
Weyerhaeuser Co
Low consistency pulp bleaching with ozone – at specific consistencies and gassed pulp mixing energies
US4622100A
(en)
*
1984-10-01
1986-11-11
International Paper Company
Process for the delignification of lignocellulosic material with oxygen, ferricyanide, and a protector
EP0428512B1
(en)
*
1988-12-27
1994-11-17
Eskil Leannant Karlson
Ozone generation by corona discharge at elevated pressures
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
US5181989A
(en)
*
1990-10-26
1993-01-26
Union Camp Patent Holdings, 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
US5188708A
(en)
*
1989-02-15
1993-02-23
Union Camp Patent Holding, Inc.
Process for high consistency oxygen delignification followed by ozone relignification
US5472572A
(en)
*
1990-10-26
1995-12-05
Union Camp Patent Holding, Inc.
Reactor for bleaching high consistency pulp with ozone
US6153051A
(en)
*
1989-05-05
2000-11-28
International Paper Company
Method of bleaching kraft pulp employing chlorine dioxide/chlorine-ozone bleach sequence
US4959124A
(en)
*
1989-05-05
1990-09-25
International Paper Company
Method of bleaching kraft pulp in a DZED sequence
AU636173B2
(en)
*
1989-10-30
1993-04-22
Lenzing Aktiengesellschaft
Method for the chlorine-free bleaching of pulps
US5164044A
(en)
*
1990-05-17
1992-11-17
Union Camp Patent Holding, Inc.
Environmentally improved process for bleaching lignocellulosic materials with ozone
US5441603A
(en)
*
1990-05-17
1995-08-15
Union Camp Patent Holding, Inc.
Method for chelation of pulp prior to ozone delignification
US5164043A
(en)
*
1990-05-17
1992-11-17
Union Camp Patent Holding, Inc.
Environmentally improved process for bleaching lignocellulosic materials with ozone
US5520783A
(en)
*
1990-10-26
1996-05-28
Union Camp Patent Holding, Inc.
Apparatus for bleaching high consistency pulp with ozone
US5174861A
(en)
*
1990-10-26
1992-12-29
Union Camp Patent Holdings, Inc.
Method of bleaching high consistency pulp with ozone
DE69221385T2
(en)
*
1991-05-24
1997-12-11
Union Camp Patent Holding
Two-stage pulp bleaching reactor and method for bleaching with ozone
SE470234B
(en)
*
1992-05-13
1993-12-13
Kamyr Ab
Method of bleaching cellulosic fibrous material with ozone in the presence of an organic compound
JP3121917B2
(en)
*
1992-07-08
2001-01-09
住友重機械工業株式会社
Pulp bleaching method with ozone
BR9307281A
(en)
*
1992-10-23
1999-06-01
Mac Millan Bloedel Ltd
Pulp bleached with ozone and process for its production
FR2708010B1
(en)
*
1993-07-21
1995-09-22
Degremont
Process for bleaching paper pulps with ozone.
US5554259A
(en)
*
1993-10-01
1996-09-10
Union Camp Patent Holdings, Inc.
Reduction of salt scale precipitation by control of process stream Ph and salt concentration
WO1995033884A1
(en)
*
1994-06-02
1995-12-14
Macmillan Bloedel Limited
Ozone bleaching
US6315863B1
(en)
1998-06-18
2001-11-13
Weyerhaeuser Company
Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate
SE514947C2
(en)
*
1998-09-09
2001-05-21
Valmet Fibertech Ab
Bleaching of pulp with ozone including oxalic acid addition
US6923887B2
(en)
*
2003-02-21
2005-08-02
Alberta Research Council Inc.
Method for hydrogen peroxide bleaching of pulp using an organic solvent in the bleaching medium
CN104191483B
(en)
*
2014-08-08
2016-05-18
浙江工业大学
A kind of method of processing of bamboo chopsticks being processed with ozone
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
SE364323C
(en)
*
1972-06-22
1976-04-01
Billeruds Ab
WAY TO TREAT CELLULOSA MASS IN AN ALKALINE ENVIRONMENT
US4004967A
(en)
*
1972-06-22
1977-01-25
Billeruds Aktiebolag
Bleaching cellulose pulp with oxygen in the presence of formaldehyde
JPS51116207A
(en)
*
1975-04-07
1976-10-13
Kogyo Gijutsuin
Improved process for bleaching pulp with ozone
JPS6055638B2
(en)
*
1976-10-16
1985-12-05
工業技術院長
Pulp bleaching method with ozone
1979
1979-01-11
US
US06/002,491
patent/US4229252A/en
not_active
Expired – Lifetime
1980
1980-01-09
NO
NO800048A
patent/NO800048L/en
unknown
1980-01-10
NZ
NZ192582A
patent/NZ192582A/en
unknown
1980-01-10
CA
CA343,437A
patent/CA1131410A/en
not_active
Expired
1980-01-11
FI
FI800079A
patent/FI72357C/en
not_active
IP Right Cessation
1980-01-11
AU
AU54566/80A
patent/AU528837B2/en
not_active
Ceased
1980-01-11
JP
JP198280A
patent/JPS55112390A/en
active
Pending
1980-01-11
FR
FR8000607A
patent/FR2446355A1/en
active
Granted
1980-01-11
SE
SE8000249A
patent/SE442027B/en
not_active
IP Right Cessation
Also Published As
Publication number
Publication date
FR2446355B1
(en)
1983-12-30
FR2446355A1
(en)
1980-08-08
NO800048L
(en)
1980-07-14
CA1131410A
(en)
1982-09-14
JPS55112390A
(en)
1980-08-29
FI72357C
(en)
1987-05-11
US4229252A
(en)
1980-10-21
NZ192582A
(en)
1982-12-07
SE8000249L
(en)
1980-07-12
FI800079A
(en)
1980-07-12
SE442027B
(en)
1985-11-25
FI72357B
(en)
1987-01-30
AU5456680A
(en)
1980-09-04
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Publication
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(en)
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None