FI874141L - Foerfarande foer blekning av lignocellulosamaterial. - Google Patents

Foerfarande foer blekning av lignocellulosamaterial. Download PDF

Info

Publication number: FI874141L
Authority: FI; Finland
Prior art keywords: lignocellulosamaterial; foerfarande foer; blekning; foer blekning; foerfarande
Prior art date: 1986-09-23

Application number

FI874141A

Other languages

English (en)

Other versions

FI86443C (fi

FI86443B (fi

FI874141A0 (fi

Inventor

Michel Devic

Robert Angelier

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.)

1986-09-23

Filing date

1987-09-22

Publication date

1988-03-24

1987-09-22 Application filed by Atochem filed Critical Atochem

1987-09-22 Publication of FI874141A0 publication Critical patent/FI874141A0/fi

1988-03-24 Publication of FI874141L publication Critical patent/FI874141L/fi

1992-05-15 Application granted granted Critical

1992-05-15 Publication of FI86443B publication Critical patent/FI86443B/fi

1992-08-25 Publication of FI86443C publication Critical patent/FI86443C/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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)

FI874141A 1986-09-23 1987-09-22 Foerfarande foer blekning av lignocellulosamassor. FI86443C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8613546A FR2604197B1 (fr)	1986-09-23	1986-09-23	Procede de blanchiment de matieres lignocellulosiques.
FR8613546		1986-09-23

Publications (4)

Publication Number	Publication Date
FI874141A0 FI874141A0 (fi)	1987-09-22
FI874141L true FI874141L (fi)	1988-03-24
FI86443B FI86443B (fi)	1992-05-15
FI86443C FI86443C (fi)	1992-08-25

Family

ID=9339347

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI874141A FI86443C (fi)	1986-09-23	1987-09-22	Foerfarande foer blekning av lignocellulosamassor.

Country Status (7)

Country	Link
US (1)	US4812206A (fi)
EP (1)	EP0263040B1 (fi)
JP (1)	JPS6399388A (fi)
CA (1)	CA1302018C (fi)
ES (1)	ES2002249B3 (fi)
FI (1)	FI86443C (fi)
FR (1)	FR2604197B1 (fi)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2583226B2 (ja) *	1987-02-24	1997-02-19	新王子製紙株式会社	中性紙の製造方法
JPH0197291A (ja) *	1987-10-05	1989-04-14	Fmc Corp	機械パルプの漂白方法
FR2639371B1 (fr) *	1988-11-24	1995-04-14	Atochem	Procede de blanchiment de pates desencrees
FR2659363B1 (fr) *	1990-03-07	1996-04-19	Atochem	Procede de preparation de pates a haut rendement blanchies.
US5169555A (en) *	1990-11-09	1992-12-08	Morton International, Inc.	Pulp bleaching solution
SE468355B (sv) *	1991-04-30	1992-12-21	Eka Nobel Ab	Blekning av kemisk massa genom behandling med komplexbildare och ozon
US5213836A (en) *	1991-09-18	1993-05-25	American Crystal Sugar Company	Method of preparation of sugar beet fiber material
AU1357097A (en) *	1996-02-27	1997-09-16	Tetra Laval Holdings & Finance Sa	Process for sanitizing post-consumer paper fibers and product formed therefrom
US7001484B2 (en) *	2000-05-04	2006-02-21	University Of New Brunswick	Peroxide bleaching of wood pulp using stabilizers and sodium hydrosulfide reducing agent
US6743332B2 (en) *	2001-05-16	2004-06-01	Weyerhaeuser Company	High temperature peroxide bleaching of mechanical pulps
US6881299B2 (en) *	2001-05-16	2005-04-19	North American Paper Corporation	Refiner bleaching with magnesium oxide and hydrogen peroxide
US7384502B2 (en) *	2002-12-24	2008-06-10	Nippon Paper Industries Co., Ltd.	Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness
SE528348C2 (sv) *	2004-09-21	2006-10-24	Noss Ab	Förfarande och anordning för att tillverka cellulosamassa
JP4517933B2 (ja) *	2005-04-27	2010-08-04	王子製紙株式会社	コールドセット型オフセット用新聞用紙
US8262851B2 (en) *	2006-08-10	2012-09-11	Andritz Inc.	Processes and systems for the pulping of lignocellulosic materials

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2290601A (en) *	1940-02-16	1942-07-21	Du Pont	Bleaching of ground wood pulp with preliminary bisulphite treatment
DE834808C (de) *	1950-08-31	1952-03-24	Degussa	Verfahren zum Bleichen von mechanisch erzeugten, schwer bleichbaren Faserstoffen, insbesondere Holzschliff
FR1201712A (fr) *	1958-07-11	1960-01-05	Fr Du Xylon Soc	Perfectionnements au blanchiment des pâtes cellulosiques
DE1171723B (de) *	1958-11-27	1964-06-04	Mo Och Domsjoe Ab	Verfahren zum Veredeln von cellulose-haltigem Material
DE1173172B (de) *	1962-04-11	1964-07-02	Siemens Ag	Verfahren zur Abschaltung einpolig erdschlussbehafteter unbelasteter Drehstrom-leitungen mit Spannungen hoeher 5 kV und niederohmig induktiv geerdetem Sternpunkt
SE413684C (sv) *	1974-09-23	1987-05-18	Mo Och Domsjoe Ab	Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 %
FR2451963A1 (fr) *	1979-03-22	1980-10-17	Creusot Loire	Procede et installation de preparation et de lavage d'une pate a papier a partir d'une matiere lignocellulosique reduite en morceaux
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

1986
- 1986-09-23 FR FR8613546A patent/FR2604197B1/fr not_active Expired
1987
- 1987-09-18 EP EP87420244A patent/EP0263040B1/fr not_active Expired - Lifetime
- 1987-09-18 ES ES87420244T patent/ES2002249B3/es not_active Expired - Lifetime
- 1987-09-22 US US07/099,762 patent/US4812206A/en not_active Expired - Lifetime
- 1987-09-22 JP JP62238581A patent/JPS6399388A/ja active Granted
- 1987-09-22 FI FI874141A patent/FI86443C/fi not_active IP Right Cessation
- 1987-09-22 CA CA000547509A patent/CA1302018C/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
ES2002249B3 (es)	1991-11-16
EP0263040A1 (fr)	1988-04-06
EP0263040B1 (fr)	1991-01-09
JPS6399388A (ja)	1988-04-30
FR2604197B1 (fr)	1988-11-18
JPH0210275B2 (fi)	1990-03-07
FI86443C (fi)	1992-08-25
US4812206A (en)	1989-03-14
FI86443B (fi)	1992-05-15
ES2002249A4 (es)	1988-08-01
FI874141A0 (fi)	1987-09-22
CA1302018C (fr)	1992-06-02
FR2604197A1 (fr)	1988-03-25

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Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: ATOCHEM