FI884881L - FOERFARANDE FOER BLEKNING AV MASS. - Google Patents

FOERFARANDE FOER BLEKNING AV MASS. 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

Finnish (fi)

Other versions

FI884881A7 (en

FI884881A0 (en

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/en

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

1989-04-23 Publication of FI884881L publication Critical patent/FI884881L/en

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 MASS. FI884881L (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR8714877A FR2622221A1 (en)	1987-10-22	1987-10-22	PROCESS FOR BLEACHING PASTA

Publications (3)

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

Family

ID=9356225

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI884881A FI884881L (en)	1987-10-22	1988-10-21	FOERFARANDE FOER BLEKNING AV MASS.

Country Status (10)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2661430B1 (en) *	1990-04-30	1992-07-17	Atochem	HIGH-YIELD PAPER PULP HYDROGEN PEROXIDE BLEACHING PROCESS.
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 (en) *	1993-10-26	1998-11-05	Akzo Nobel Nv	AMINOALCANE DIPHOSPHONIC ACIDS FOR THE BLEACHING OF CELLULAR
KR102777955B1 (en) *	2022-02-04	2025-03-11	대한민국	Bleaching method for thermomechanical pulp

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 (en) *	1981-11-27	1983-05-31	工業技術院長	Production of high whiteness unbleached pulp
SE451606B (en) *	1982-09-14	1987-10-19	Sca Development Ab	VIEW WHITENING OF HOG REPLACEMENT MASSES AVERAGE PEROXIDES
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 (en) *	1985-02-15	1989-01-15	Kamyr Ab	MULTI-STAGE PEROXIDE BLEACHING OF A MECHANICAL PULP.
FR2582692B1 (en) *	1985-05-29	1987-12-11	Atochem	TREATMENT OF CHEMICAL PAPER PULP WITH HYDROGEN PEROXIDE FOR BLEACHING
FR2593527B1 (en) *	1986-01-30	1988-03-25	Centre Tech Ind Papier	PROCESS FOR BLEACHING MECHANICAL PASTA.

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- 1987-10-22 FR FR8714877A patent/FR2622221A1/en not_active Withdrawn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

Also Published As

Publication number	Publication date
AU2413088A (en)	1989-04-27
NZ226649A (en)	1989-10-27
FI884881A7 (en)	1989-04-23
PT88819B (en)	1993-01-29
FI884881A0 (en)	1988-10-21
NO884674L (en)	1989-04-24
EP0313478A1 (en)	1989-04-26
NO170348B (en)	1992-06-29
NO170348C (en)	1992-10-07
ES2008654A4 (en)	1989-08-01
NO884674D0 (en)	1988-10-20
JPH0643674B2 (en)	1994-06-08
DE313478T1 (en)	1989-10-05
FR2622221A1 (en)	1989-04-28
JPH01124696A (en)	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