FI884881L - Foerfarande foer blekning av massa. - Google Patents

Foerfarande foer blekning av massa. Download PDF

Info

Publication number: FI884881L
Authority: FI; Finland
Prior art keywords: mass; foerfarande foer; blekning; foer blekning; foerfarande
Prior art date: 1987-10-22

Application number

FI884881A

Other languages

English (en)

Other versions

FI884881A7 (fi

FI884881A0 (fi

Inventor

Jacques Kervennal

Francoise Chosson

Dominique Lachenal

Original Assignee

Atochem

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.)

1987-10-22

Filing date

1988-10-21

Publication date

1989-04-23

1988-10-21 Application filed by Atochem filed Critical Atochem

1988-10-21 Publication of FI884881A0 publication Critical patent/FI884881A0/fi

1989-04-23 Publication of FI884881A7 publication Critical patent/FI884881A7/fi

1989-04-23 Publication of FI884881L publication Critical patent/FI884881L/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
- 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)
Medicinal Preparation (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Detergent Compositions (AREA)

FI884881A 1987-10-22 1988-10-21 Foerfarande foer blekning av massa. FI884881L (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR8714877A FR2622221A1 (fr)	1987-10-22	1987-10-22	Procede de blanchiment de pates

Publications (3)

Publication Number	Publication Date
FI884881A0 FI884881A0 (fi)	1988-10-21
FI884881A7 FI884881A7 (fi)	1989-04-23
FI884881L true FI884881L (fi)	1989-04-23

Family

ID=9356225

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI884881A FI884881L (fi)	1987-10-22	1988-10-21	Foerfarande foer blekning av massa.

Country Status (10)

Country	Link
EP (1)	EP0313478A1 (fi)
JP (1)	JPH0643674B2 (fi)
AU (1)	AU615001B2 (fi)
DE (1)	DE313478T1 (fi)
ES (1)	ES2008654A4 (fi)
FI (1)	FI884881L (fi)
FR (1)	FR2622221A1 (fi)
NO (1)	NO170348C (fi)
NZ (1)	NZ226649A (fi)
PT (1)	PT88819B (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2661430B1 (fr) *	1990-04-30	1992-07-17	Atochem	Procede de blanchiment au peroxyde d'hydrogene de pates a papier a haut rendement.
US5118389A (en) *	1990-07-06	1992-06-02	Ici Canada Inc.	Two-stage peroxide bleaching process using different amounts of peroxide on different portions of mechanical pulp
CA2063351C (en) *	1992-03-18	1996-08-13	Stanley Alan Heimburger	Process for bleaching hardwood pulp
US6605181B1 (en) *	1993-10-01	2003-08-12	Kvaerner Pulping Aktiebolag	Peroxide bleach sequence including an acidic bleach stage and including a wash stage
DE69409967T2 (de) *	1993-10-26	1998-11-05	Akzo Nobel Nv	Aminoalkan-diphosphonsäuren zum bleichen von zellstoff
KR102777955B1 (ko) *	2022-02-04	2025-03-11	대한민국	열기계 펄프의 표백방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5679798A (en) *	1979-12-03	1981-06-30	Mitsubishi Gas Chemical Co	Production of bleaching machine pulp
JPS5891884A (ja) *	1981-11-27	1983-05-31	工業技術院長	高白色度未晒パルプの製造方法
SE451606B (sv) *	1982-09-14	1987-10-19	Sca Development Ab	Sett vid blekning av hogutbytesmassor medelst peroxider
CA1249402A (en) *	1984-12-21	1989-01-31	Pulp And Paper Research Institute Of Canada	Multistage brightening of high yield and ultra high- yield wood pulps
ATE39714T1 (de) *	1985-02-15	1989-01-15	Kamyr Ab	Mehrstufige peroxidbleiche einer mechanischen pulpe.
FR2582692B1 (fr) *	1985-05-29	1987-12-11	Atochem	Traitement de pates papetieres chimiques par le peroxyde d'hydrogene en vue de leur blanchiment
FR2593527B1 (fr) *	1986-01-30	1988-03-25	Centre Tech Ind Papier	Procede de blanchiment des pates mecaniques.

1987
- 1987-10-22 FR FR8714877A patent/FR2622221A1/fr not_active Withdrawn
1988
- 1988-10-06 ES ES88420339T patent/ES2008654A4/es active Pending
- 1988-10-06 EP EP19880420339 patent/EP0313478A1/fr not_active Withdrawn
- 1988-10-06 DE DE198888420339T patent/DE313478T1/de active Pending
- 1988-10-20 JP JP63265221A patent/JPH0643674B2/ja not_active Expired - Lifetime
- 1988-10-20 NO NO884674A patent/NO170348C/no unknown
- 1988-10-20 NZ NZ226649A patent/NZ226649A/xx unknown
- 1988-10-21 PT PT88819A patent/PT88819B/pt active IP Right Grant
- 1988-10-21 AU AU24130/88A patent/AU615001B2/en not_active Ceased
- 1988-10-21 FI FI884881A patent/FI884881L/fi not_active Application Discontinuation

Also Published As

Publication number	Publication date
AU2413088A (en)	1989-04-27
NZ226649A (en)	1989-10-27
FI884881A7 (fi)	1989-04-23
PT88819B (pt)	1993-01-29
FI884881A0 (fi)	1988-10-21
NO884674L (no)	1989-04-24
EP0313478A1 (fr)	1989-04-26
NO170348B (no)	1992-06-29
NO170348C (no)	1992-10-07
ES2008654A4 (es)	1989-08-01
NO884674D0 (no)	1988-10-20
JPH0643674B2 (ja)	1994-06-08
DE313478T1 (de)	1989-10-05
FR2622221A1 (fr)	1989-04-28
JPH01124696A (ja)	1989-05-17
AU615001B2 (en)	1991-09-19

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Legal Events

Date	Code	Title	Description
1993-12-16	FD	Application lapsed
2004-08-31	FD	Application lapsed	Owner name: ATOCHEM