FI913279A0 - Peroxidblekningsfoerfarande i tvao steg. - Google Patents

Peroxidblekningsfoerfarande i tvao steg.

Info

Publication number: FI913279A0
Authority: FI; Finland
Prior art keywords: peroxidblekningsfoerfarande; tvao; steg; tvao steg
Prior art date: 1990-07-06

Application number

FI913279A

Other languages

English (en)

Other versions

FI913279A (fi

Inventor

Paul Dubelsten

Manoir John R Du

Christopher J Kanters

Original Assignee

Ici Canada

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.)

1990-07-06

Filing date

1991-07-05

Publication date

1991-07-05

1991-07-05 Application filed by Ici Canada filed Critical Ici Canada

1991-07-05 Publication of FI913279A0 publication Critical patent/FI913279A0/fi

1992-01-07 Publication of FI913279A publication Critical patent/FI913279A/fi

Links

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
- 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)

FI913279A 1990-07-06 1991-07-05 Peroxidblekningsfoerfarande i tvao steg. FI913279A (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/549,145 US5118389A (en)	1990-07-06	1990-07-06	Two-stage peroxide bleaching process using different amounts of peroxide on different portions of mechanical pulp

Publications (2)

Publication Number	Publication Date
FI913279A0 true FI913279A0 (fi)	1991-07-05
FI913279A FI913279A (fi)	1992-01-07

Family

ID=24191848

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI913279A FI913279A (fi)	1990-07-06	1991-07-05	Peroxidblekningsfoerfarande i tvao steg.

Country Status (13)

Country	Link
US (1)	US5118389A (fi)
EP (1)	EP0466411A1 (fi)
JP (1)	JPH06341078A (fi)
AU (1)	AU634665B2 (fi)
CA (1)	CA2045754A1 (fi)
FI (1)	FI913279A (fi)
MW (1)	MW2291A1 (fi)
NO (1)	NO912641L (fi)
NZ (1)	NZ238830A (fi)
PT (1)	PT98226A (fi)
ZA (1)	ZA915010B (fi)
ZM (1)	ZM2691A1 (fi)
ZW (1)	ZW8491A1 (fi)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1258844B (it) *	1992-01-31	1996-02-29	Ausimont Spa	Procedimento per la delignificazione di cellulosa grezza
CA2063351C (en) *	1992-03-18	1996-08-13	Stanley Alan Heimburger	Process for bleaching hardwood pulp
US6001218A (en) *	1994-06-29	1999-12-14	Kimberly-Clark Worldwide, Inc.	Production of soft paper products from old newspaper
US5582681A (en) *	1994-06-29	1996-12-10	Kimberly-Clark Corporation	Production of soft paper products from old newspaper
US6074527A (en) *	1994-06-29	2000-06-13	Kimberly-Clark Worldwide, Inc.	Production of soft paper products from coarse cellulosic fibers
US6296736B1 (en)	1997-10-30	2001-10-02	Kimberly-Clark Worldwide, Inc.	Process for modifying pulp from recycled newspapers
US6387210B1 (en)	1998-09-30	2002-05-14	Kimberly-Clark Worldwide, Inc.	Method of making sanitary paper product from coarse fibers
SE517297E (sv) *	1999-09-10	2004-12-07	Stora Enso Ab	Metod vid produktion av mekanisk massa från ett cellulosainnehållande material, massa framställd enligt metoden samt kartong producerad av massan
US7052578B2 (en) *	2000-01-28	2006-05-30	Martin Marietta Magnesia Specialties, Inc.	Process employing magnesium hydroxide in peroxide bleaching of mechanical pulp
US7001484B2 (en) *	2000-05-04	2006-02-21	University Of New Brunswick	Peroxide bleaching of wood pulp using stabilizers and sodium hydrosulfide reducing agent
SE516969C2 (sv) *	2000-08-14	2002-03-26	Metso Paper Inc	Klordioxidblekning i två steg med återföring av filtrat
US20030062138A1 (en) *	2001-05-09	2003-04-03	Hache Maurice Joseph Albert	Method for brightening mechanical pulps
US7297225B2 (en) *	2004-06-22	2007-11-20	Georgia-Pacific Consumer Products Lp	Process for high temperature peroxide bleaching of pulp with cool discharge
US10306915B2 (en) *	2014-04-28	2019-06-04	Altria Client Services Llc	Peroxides to limit biofilms and tobacco-specific nitrosamines

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2942661A (en) *	1956-12-18	1960-06-28	Beloit Iron Works	Multi-ply sheet former
US3147178A (en) *	1961-05-18	1964-09-01	St Joe Paper Company	Sulphate digestion process
US4731160A (en) *	1986-03-19	1988-03-15	Kamyr, Inc.	Drainage characteristics of mechanical pulp
SE455203B (sv) *	1986-10-20	1988-06-27	Eka Nobel Ab	Forfarande for styrning av peroxidblekning av massa
US4798652A (en) *	1987-10-19	1989-01-17	Peter Joyce	Peroxide bleaching of mechanical pulps
FR2622221A1 (fr) *	1987-10-22	1989-04-28	Atochem	Procede de blanchiment de pates
US4915785A (en) *	1988-12-23	1990-04-10	C-I-L Inc.	Single stage process for bleaching of pulp with an aqueous hydrogen peroxide bleaching composition containing magnesium sulphate and sodium silicate

1990
- 1990-07-06 US US07/549,145 patent/US5118389A/en not_active Expired - Fee Related
1991
- 1991-06-26 CA CA002045754A patent/CA2045754A1/en not_active Abandoned
- 1991-06-27 MW MW22/91A patent/MW2291A1/xx unknown
- 1991-06-28 ZA ZA915010A patent/ZA915010B/xx unknown
- 1991-07-01 ZW ZW84/91A patent/ZW8491A1/xx unknown
- 1991-07-03 NZ NZ238830A patent/NZ238830A/xx unknown
- 1991-07-03 ZM ZM26/91A patent/ZM2691A1/xx unknown
- 1991-07-04 JP JP3164437A patent/JPH06341078A/ja active Pending
- 1991-07-05 FI FI913279A patent/FI913279A/fi not_active Application Discontinuation
- 1991-07-05 EP EP91306119A patent/EP0466411A1/en not_active Withdrawn
- 1991-07-05 PT PT98226A patent/PT98226A/pt not_active Application Discontinuation
- 1991-07-05 AU AU80240/91A patent/AU634665B2/en not_active Ceased
- 1991-07-05 NO NO91912641A patent/NO912641L/no unknown

Also Published As

Publication number	Publication date
MW2291A1 (en)	1992-03-11
AU634665B2 (en)	1993-02-25
NO912641L (no)	1992-01-07
NO912641D0 (no)	1991-07-05
FI913279A (fi)	1992-01-07
JPH06341078A (ja)	1994-12-13
PT98226A (pt)	1992-05-29
ZM2691A1 (en)	1992-03-27
ZA915010B (en)	1993-02-24
EP0466411A1 (en)	1992-01-15
NZ238830A (en)	1993-05-26
US5118389A (en)	1992-06-02
AU8024091A (en)	1992-01-09
CA2045754A1 (en)	1992-01-07
ZW8491A1 (en)	1992-03-11

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Legal Events

Date	Code	Title	Description
1994-02-04	FD	Application lapsed