FI960972L - Method for bleaching lignocellulosic pulp - Google Patents

Method for bleaching lignocellulosic pulp Download PDF

Info

Publication number: FI960972L
Authority: FI; Finland
Prior art keywords: lignocellulosic pulp; bleaching lignocellulosic; bleaching; pulp; lignocellulosic
Prior art date: 1993-09-02

Application number

FI960972A

Other languages

Finnish (fi)

Swedish (sv)

Other versions

FI960972A7 (en

FI960972A0 (en

Inventor

Michael A Pikulin

Thomas P Gandek

James C Joseph

Original Assignee

Union Camp Patent Holding

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.)

1993-09-02

Filing date

1994-09-02

Publication date

1996-04-29

1994-09-02 Application filed by Union Camp Patent Holding filed Critical Union Camp Patent Holding

1996-03-01 Publication of FI960972A0 publication Critical patent/FI960972A0/en

1996-04-29 Publication of FI960972L publication Critical patent/FI960972L/en

1996-04-29 Publication of FI960972A7 publication Critical patent/FI960972A7/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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0042—Fractionating or concentration of spent liquors by special methods
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

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

FI960972A 1993-09-02 1994-09-02 Method for bleaching lignocellulosic pulp FI960972A7 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US11604093A	1993-09-02	1993-09-02
US26809994A	1994-06-29	1994-06-29
PCT/US1994/009951 WO1995006772A1 (en)	1993-09-02	1994-09-02	Improved method for bleaching lignocellulosic pulp

Publications (3)

Publication Number	Publication Date
FI960972A0 FI960972A0 (en)	1996-03-01
FI960972L true FI960972L (en)	1996-04-29
FI960972A7 FI960972A7 (en)	1996-04-29

Family

ID=26813841

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI960972A FI960972A7 (en)	1993-09-02	1994-09-02	Method for bleaching lignocellulosic pulp

Country Status (7)

Country	Link
EP (1)	EP0720676A4 (en)
JP (1)	JPH09502229A (en)
AU (1)	AU7720094A (en)
BR (1)	BR9407409A (en)
CA (1)	CA2170398A1 (en)
FI (1)	FI960972A7 (en)
WO (1)	WO1995006772A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4641629B2 (en) *	2001-01-26	2011-03-02	日本製紙株式会社	Cellulose fiber material pulp bleaching method
FI20022068A7 (en) *	2002-11-20	2004-05-21	Metso Paper Inc	Method and system for the production of mechanical pulp
FI126563B (en) *	2012-03-12	2017-02-15	Upm Kymmene Corp	Method and apparatus for treating fluid streams in a cellulose plant
FI128900B (en) *	2012-03-12	2021-02-26	Upm Kymmene Corp	Process for the treatment of liquid streams in a cellulose plant and the use of low chloride process water in a cellulose plant
CN104703718B (en) *	2012-09-27	2018-04-03	安德里兹有限公司	The chemical treatment of lignocellulose fiber beam material and relative method and system
SE546896C2 (en) *	2022-11-15	2025-03-04	Valmet Oy	Method for bleaching cellulose pulp and system for producing bleached cellulose pulp from recycled textile material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NO142091C (en) *	1977-10-17	1980-06-25	Myrens Verksted As	PROCEDURE FOR OZONE TREATMENT OF REFINO MECHANICAL AND THERMOMECHANICAL MASS.
FI864154A7 (en) *	1985-02-14	1986-10-14	Edward Francis Elton	Method and apparatus for alkaline removal of lignin from fibrous materials comprising lignocellulose.
US5085734A (en) *	1989-02-15	1992-02-04	Union Camp Patent Holding, Inc.	Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
RU2102547C1 (en) *	1990-05-17	1998-01-20	Юнион Кемп Корпорейшн	Method of preparing bleached pulp and a method for delignification and bleaching of lignocellulose material
SE469842C (en) *	1992-01-21	1996-01-15	Sunds Defibrator Ind Ab	Bleaching of chemical pulp with peroxide

1994
- 1994-09-02 WO PCT/US1994/009951 patent/WO1995006772A1/en not_active Ceased
- 1994-09-02 BR BR9407409A patent/BR9407409A/en not_active Application Discontinuation
- 1994-09-02 JP JP7508290A patent/JPH09502229A/en active Pending
- 1994-09-02 CA CA002170398A patent/CA2170398A1/en not_active Abandoned
- 1994-09-02 EP EP94928001A patent/EP0720676A4/en not_active Withdrawn
- 1994-09-02 AU AU77200/94A patent/AU7720094A/en not_active Abandoned
- 1994-09-02 FI FI960972A patent/FI960972A7/en unknown

Also Published As

Publication number	Publication date
AU7720094A (en)	1995-03-22
JPH09502229A (en)	1997-03-04
EP0720676A4 (en)	1998-03-04
FI960972A7 (en)	1996-04-29
CA2170398A1 (en)	1995-03-09
EP0720676A1 (en)	1996-07-10
BR9407409A (en)	1996-11-12
FI960972A0 (en)	1996-03-01
WO1995006772A1 (en)	1995-03-09

Publication	Publication Date	Title
FI941764L (en)	1994-10-21	Method for bleaching lignocellulosic pulp
FI960145L (en)	1996-01-12	Method for making pulp
FI944928A0 (en)	1994-10-20	Method for bleaching chemical pulp
FI950526L (en)	1995-02-07	Pulp bleaching method
FI944318L (en)	1994-11-16	Method for bleaching hardwood pulp
FI932848A7 (en)	1993-12-19	Method for bleaching paper pulp
FI944348A7 (en)	1996-03-20	Method for bleaching kraft pulp
FI931710A7 (en)	1993-10-16	Method for bleaching de-inked pulp
FI911963A7 (en)	1991-10-26	Method for bleaching pulp
FI904456A7 (en)	1991-03-13	Method for bleaching pulp
FI960972L (en)	1996-04-29	Method for bleaching lignocellulosic pulp
FI965216L (en)	1997-01-13	Method for bleaching high-consistency lignocellulosic pulp
FI952551A7 (en)	1995-05-24	Method for bleaching lignocellulose-containing pulp
FI942424L (en)	1994-11-27	Improved method for pulp bleaching
FI943333A0 (en)	1994-07-13	Method for bleaching lignocellulosic fibers
FI921961A7 (en)	1992-11-03	Method for bleaching xylan- and lignocellulosic materials
FI934705A7 (en)	1994-04-30	Method for bleaching lignocellulosic pulp
FI951166A7 (en)	1995-09-15	Pulp bleaching method
FI950785L (en)	1996-08-22	Method for bleaching pulp
FI922945A7 (en)	1992-12-29	Method for bleaching pulp
FI923798A7 (en)	1992-08-24	Method for bleaching pulp
FI943388L (en)	1995-01-16	Method for bleaching paper pulp
FI934833A7 (en)	1993-11-01	Method for bleaching lignocellulosic pulp
FI944144A0 (en)	1994-09-09	Method for bleaching pulp
FI950200L (en)	1995-09-17	Method for bleaching pulp