FI924751A - Tvaettpressmodifikation foer en syredelignifieringsmetod - Google Patents

Tvaettpressmodifikation foer en syredelignifieringsmetod Download PDF

Info

Publication number: FI924751A
Authority: FI; Finland
Prior art keywords: pulp; consistency; alkaline material; wash press; oxygen
Prior art date: 1991-10-29

Application number

FI924751A

Other languages

English (en)

Other versions

FI924751A0 (fi

Inventor

William H Friend

Stuart T Terrett

Spencer W Eachus

Bruce F Griggs

Original Assignee

Union Camp Patent Holding

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.)

1991-10-29

Filing date

1992-10-20

Publication date

1993-04-30

1992-10-20 Application filed by Union Camp Patent Holding filed Critical Union Camp Patent Holding

1992-10-20 Publication of FI924751A0 publication Critical patent/FI924751A0/fi

1993-04-30 Publication of FI924751A publication Critical patent/FI924751A/fi

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
- 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
- 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

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Television Systems (AREA)
Gas Separation By Absorption (AREA)
Detergent Compositions (AREA)
Cleaning By Liquid Or Steam (AREA)
Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

FI924751A 1991-10-29 1992-10-20 Tvaettpressmodifikation foer en syredelignifieringsmetod FI924751A (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US78418491A	1991-10-29	1991-10-29

Publications (2)

Publication Number	Publication Date
FI924751A0 FI924751A0 (fi)	1992-10-20
FI924751A true FI924751A (fi)	1993-04-30

Family

ID=25131607

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI924751A FI924751A (fi)	1991-10-29	1992-10-20	Tvaettpressmodifikation foer en syredelignifieringsmetod

Country Status (14)

Country	Link
EP (1)	EP0540091B1 (fi)
JP (1)	JPH05195466A (fi)
KR (1)	KR960006125B1 (fi)
CN (1)	CN1080343A (fi)
AT (1)	ATE147808T1 (fi)
AU (1)	AU647973B2 (fi)
BR (1)	BR9204173A (fi)
CA (1)	CA2081398C (fi)
DE (1)	DE69216757D1 (fi)
FI (1)	FI924751A (fi)
NO (1)	NO924080L (fi)
NZ (1)	NZ244837A (fi)
SE (1)	SE9203113L (fi)
ZA (1)	ZA928294B (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU6641498A (en)	1997-03-07	1998-09-22	Akzo Nobel N.V.	Process for treating wastewater
EP0863113A1 (en) *	1997-03-07	1998-09-09	Akzo Nobel N.V.	Process for treating wastewater
FI122241B (fi)	2007-06-15	2011-10-31	Andritz Oy	Menetelmä massan pesun yhteydessä sellutehtaalla
EP2910678B1 (en)	2010-06-10	2017-07-26	Packaging Corporation Of America	Method of manufacturing pulp for corrugated medium

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BR8605554A (pt) *	1985-02-14	1987-04-22	Edward Francis Elton	Processo para producao de papel e aparelho para a deslignificacao alcalina de materiais fibrosos ligno-celulosicos
US5173153A (en) *	1991-01-03	1992-12-22	Union Camp Patent Holding, Inc.	Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5085734A (en) *	1989-02-15	1992-02-04	Union Camp Patent Holding, Inc.	Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
JPH02289194A (ja) *	1989-04-20	1990-11-29	Mitsubishi Paper Mills Ltd	リグノセルロース物質の酸素漂白法

1992
- 1992-10-20 FI FI924751A patent/FI924751A/fi not_active Application Discontinuation
- 1992-10-21 NO NO92924080A patent/NO924080L/no unknown
- 1992-10-21 NZ NZ244837A patent/NZ244837A/en unknown
- 1992-10-21 AU AU27168/92A patent/AU647973B2/en not_active Ceased
- 1992-10-22 EP EP92203241A patent/EP0540091B1/en not_active Expired - Lifetime
- 1992-10-22 AT AT92203241T patent/ATE147808T1/de not_active IP Right Cessation
- 1992-10-22 DE DE69216757T patent/DE69216757D1/de not_active Expired - Lifetime
- 1992-10-23 SE SE9203113A patent/SE9203113L/ not_active Application Discontinuation
- 1992-10-26 CA CA002081398A patent/CA2081398C/en not_active Expired - Fee Related
- 1992-10-27 BR BR929204173A patent/BR9204173A/pt not_active Application Discontinuation
- 1992-10-27 ZA ZA928294A patent/ZA928294B/xx unknown
- 1992-10-28 KR KR1019920019881A patent/KR960006125B1/ko active IP Right Grant
- 1992-10-29 JP JP4291469A patent/JPH05195466A/ja active Pending
- 1992-10-29 CN CN92113767A patent/CN1080343A/zh active Pending

Also Published As

Publication number	Publication date
ATE147808T1 (de)	1997-02-15
SE9203113D0 (sv)	1992-10-23
AU647973B2 (en)	1994-03-31
ZA928294B (en)	1993-05-18
CA2081398C (en)	1997-03-25
FI924751A0 (fi)	1992-10-20
AU2716892A (en)	1993-05-20
JPH05195466A (ja)	1993-08-03
BR9204173A (pt)	1993-05-04
CA2081398A1 (en)	1993-04-30
KR930008238A (ko)	1993-05-21
SE9203113L (sv)	1993-04-30
DE69216757D1 (de)	1997-02-27
EP0540091B1 (en)	1997-01-15
NO924080D0 (no)	1992-10-21
KR960006125B1 (ko)	1996-05-09
NZ244837A (en)	1994-10-26
EP0540091A1 (en)	1993-05-05
NO924080L (no)	1993-04-30
CN1080343A (zh)	1994-01-05

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Legal Events

Date	Code	Title	Description
1998-04-30	FD	Application lapsed