FI862257A - Behandling av barrtraedsmassor med vaeteperoxid foer blekning av dem. - Google Patents

Behandling av barrtraedsmassor med vaeteperoxid foer blekning av dem. Download PDF

Info

Publication number: FI862257A
Authority: FI; Finland
Prior art keywords: hydrogen peroxide; pulp; stage; vaeteperoxid; barrtraedsmassor
Prior art date: 1985-05-29

Application number

FI862257A

Other languages

English (en)

Other versions

FI862257A0 (fi

FI83239C (fi

FI83239B (fi

Inventor

Bernard Dubreaux

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.)

1985-05-29

Filing date

1986-05-28

Publication date

1986-11-30

1986-05-28 Application filed by Atochem filed Critical Atochem

1986-05-28 Publication of FI862257A0 publication Critical patent/FI862257A0/fi

1986-11-30 Publication of FI862257A publication Critical patent/FI862257A/fi

1991-02-28 Application granted granted Critical

1991-02-28 Publication of FI83239B publication Critical patent/FI83239B/fi

1991-06-10 Publication of FI83239C publication Critical patent/FI83239C/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)
Stereophonic System (AREA)
Measuring Leads Or Probes (AREA)
Ultra Sonic Daignosis Equipment (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Treatment Of Fiber Materials (AREA)

FI862257A 1985-05-29 1986-05-28 Behandling av kemiska barrtraedsmassor med vaeteperoxid foer blekning av dem. FI83239C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8508291A FR2582692B1 (fr)	1985-05-29	1985-05-29	Traitement de pates papetieres chimiques par le peroxyde d'hydrogene en vue de leur blanchiment
FR8508291		1985-05-29

Publications (4)

Publication Number	Publication Date
FI862257A0 FI862257A0 (fi)	1986-05-28
FI862257A true FI862257A (fi)	1986-11-30
FI83239B FI83239B (fi)	1991-02-28
FI83239C FI83239C (fi)	1991-06-10

Family

ID=9319780

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI862257A FI83239C (fi)	1985-05-29	1986-05-28	Behandling av kemiska barrtraedsmassor med vaeteperoxid foer blekning av dem.

Country Status (10)

Country	Link
US (1)	US4734161A (fi)
EP (1)	EP0208625B1 (fi)
JP (1)	JPS61275491A (fi)
AT (1)	ATE32534T1 (fi)
AU (1)	AU5794486A (fi)
CA (1)	CA1273756A (fi)
DE (1)	DE3660024D1 (fi)
ES (1)	ES8802336A1 (fi)
FI (1)	FI83239C (fi)
FR (1)	FR2582692B1 (fi)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0642046B2 (ja) *	1987-01-29	1994-06-01	新王子製紙株式会社	写真印画紙用支持体
FR2622221A1 (fr) *	1987-10-22	1989-04-28	Atochem	Procede de blanchiment de pates
ES2038097T5 (es) *	1989-06-06	2001-05-01	Eka Chemicals Ab	Procedimiento para blanquear pastas papeleras que contienen lignocelulosa.
SE9001481L (sv) *	1990-04-23	1991-10-24	Eka Nobel Ab	Reduktion av halogenorganiska foereningar i blekeriavlopp
FR2661431B1 (fr) *	1990-04-30	1992-07-17	Atochem	Procede de blanchiment au peroxyde de l'hydrogene de pates a papier a haut rendement.
BE1007700A3 (fr) *	1993-11-04	1995-10-03	Solvay Interox	Procede pour le blanchiment d'une pate a papier chimique.
ZA955190B (en) *	1994-07-11	1996-03-14	Ingersoll Rand Co	Method for bleaching wood pulp using hydrogen peroxide
US5562740A (en) *	1995-06-15	1996-10-08	The Procter & Gamble Company	Process for preparing reduced odor and improved brightness individualized, polycarboxylic acid crosslinked fibers
CA2373562A1 (en) *	2001-02-27	2002-08-27	Aileen Reyes Gibson	Eop & ep process for bleaching of chemical pulp
US7297225B2 (en) *	2004-06-22	2007-11-20	Georgia-Pacific Consumer Products Lp	Process for high temperature peroxide bleaching of pulp with cool discharge
FR3007044B1 (fr) *	2013-06-13	2016-01-15	Air Liquide	Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2865701A (en) *	1953-12-07	1958-12-23	Nat Distillers Chem Corp	Process of bleaching kraft pulp with alkaline hypochlorite bleach acidifying the pulp containing residual chlorine and then bleaching with alkaline peroxide
FR2038056A1 (en) *	1969-03-07	1971-01-08	Air Liquide	Stable, clear bleaching bath for paper - pulp
US4187141A (en) *	1975-02-24	1980-02-05	Alf Societe Anonyme	Method of producing bleached mechanical pulp
JPS583074B2 (ja) *	1975-11-17	1983-01-19	三菱瓦斯化学株式会社	パルプノカサンカブツヒヨウハクホウ
JPS5545806A (en) *	1978-09-21	1980-03-31	Oji Paper Co	Peroxide bleaching method of wood pulp
US4294575A (en) *	1979-01-02	1981-10-13	Monsanto Company	Peroxide stabilization
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

1985
- 1985-05-29 FR FR8508291A patent/FR2582692B1/fr not_active Expired
1986
- 1986-04-07 US US06/849,157 patent/US4734161A/en not_active Expired - Fee Related
- 1986-05-05 CA CA000508344A patent/CA1273756A/fr not_active Expired - Lifetime
- 1986-05-27 DE DE8686420138T patent/DE3660024D1/de not_active Expired
- 1986-05-27 EP EP86420138A patent/EP0208625B1/fr not_active Expired
- 1986-05-27 AT AT86420138T patent/ATE32534T1/de not_active IP Right Cessation
- 1986-05-27 AU AU57944/86A patent/AU5794486A/en not_active Abandoned
- 1986-05-28 ES ES555395A patent/ES8802336A1/es not_active Expired
- 1986-05-28 FI FI862257A patent/FI83239C/fi not_active IP Right Cessation
- 1986-05-29 JP JP61124600A patent/JPS61275491A/ja active Granted

Also Published As

Publication number	Publication date
EP0208625B1 (fr)	1988-02-17
CA1273756A (fr)	1990-09-11
FI862257A0 (fi)	1986-05-28
FR2582692A1 (fr)	1986-12-05
FR2582692B1 (fr)	1987-12-11
ATE32534T1 (de)	1988-03-15
FI83239C (fi)	1991-06-10
ES555395A0 (es)	1987-05-01
JPH0156194B2 (fi)	1989-11-29
EP0208625A1 (fr)	1987-01-14
FI83239B (fi)	1991-02-28
JPS61275491A (ja)	1986-12-05
AU5794486A (en)	1986-12-04
ES8802336A1 (es)	1987-05-01
DE3660024D1 (en)	1988-03-24
US4734161A (en)	1988-03-29

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Legal Events

Date	Code	Title	Description
1995-12-13	MM	Patent lapsed
2004-08-31	MM	Patent lapsed	Owner name: ATOCHEM