FI960972A0 - Menetelmä lignoselluloosasulpun valkaisemiseksi - Google Patents

Menetelmä lignoselluloosasulpun valkaisemiseksi

Info

Publication number: FI960972A0
Authority: FI; Finland
Prior art keywords: lignocellulosic; bleaching; coating; lignocellulosic coating
Prior art date: 1993-09-02

Application number

FI960972A

Other languages

English (en)

Swedish (sv)

Other versions

FI960972A (fi

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

1996-03-01

Publication date

1996-03-01

1996-03-01 Application filed by Union Camp Patent Holding filed Critical Union Camp Patent Holding

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

1996-04-29 Publication of FI960972A publication Critical patent/FI960972A/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
- 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 1996-03-01 Menetelmä lignoselluloosasulpun valkaisemiseksi FI960972A (fi)

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 (2)

Publication Number	Publication Date
FI960972A0 true FI960972A0 (fi)	1996-03-01
FI960972A FI960972A (fi)	1996-04-29

Family

ID=26813841

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI960972A FI960972A (fi)	1993-09-02	1996-03-01	Menetelmä lignoselluloosasulpun valkaisemiseksi

Country Status (7)

Country	Link
EP (1)	EP0720676A4 (fi)
JP (1)	JPH09502229A (fi)
AU (1)	AU7720094A (fi)
BR (1)	BR9407409A (fi)
CA (1)	CA2170398A1 (fi)
FI (1)	FI960972A (fi)
WO (1)	WO1995006772A1 (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4641629B2 (ja) *	2001-01-26	2011-03-02	日本製紙株式会社	セルロース質繊維材料パルプの漂白方法
FI20022068A (fi) *	2002-11-20	2004-05-21	Metso Paper Inc	Menetelmä ja järjestelmä mekaanisen massan valmistuksessa
FI126563B (fi) *	2012-03-12	2017-02-15	Upm Kymmene Corp	Menetelmä ja järjestelmä nestevirtauksien käsittelemiseksi sellutehtaassa
FI128900B (fi) *	2012-03-12	2021-02-26	Upm Kymmene Corp	Menetelmä nestevirtauksien käsittelemiseksi sellutehtaassa ja pienen kloridipitoisuuden omaavien prosessivesien käyttöä sellutehtaassa
WO2014052763A1 (en) *	2012-09-27	2014-04-03	Andritz Inc.	Chemical treatment of lignocellulosic fiber bundle material, and methods and systems relating thereto
SE2230370A1 (en) *	2022-11-15	2024-05-16	Valmet Oy	Method for bleaching cellulose pulp formed from recycled textile material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NO142091C (no) *	1977-10-17	1980-06-25	Myrens Verksted As	Fremgangsmaate ved ozonbehandling av raffinoermekanisk og termomekanisk masse.
WO1986004938A1 (en) *	1985-02-14	1986-08-28	Edward Francis Elton	Method and apparatus for alkaline delignification of lignocellulosic fibrous materials
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
KR920703922A (ko) *	1990-05-17	1992-12-18	원본미기재	환경오염 개선된 리그노셀룰로오스 물질 표백방법
SE469842C (sv) *	1992-01-21	1996-01-15	Sunds Defibrator Ind Ab	Blekning av kemisk massa med peroxid

1994
- 1994-09-02 CA CA 2170398 patent/CA2170398A1/en not_active Abandoned
- 1994-09-02 JP JP7508290A patent/JPH09502229A/ja active Pending
- 1994-09-02 AU AU77200/94A patent/AU7720094A/en not_active Abandoned
- 1994-09-02 BR BR9407409A patent/BR9407409A/pt not_active Application Discontinuation
- 1994-09-02 EP EP94928001A patent/EP0720676A4/en not_active Withdrawn
- 1994-09-02 WO PCT/US1994/009951 patent/WO1995006772A1/en not_active Application Discontinuation
1996
- 1996-03-01 FI FI960972A patent/FI960972A/fi unknown

Also Published As

Publication number	Publication date
JPH09502229A (ja)	1997-03-04
FI960972A (fi)	1996-04-29
EP0720676A1 (en)	1996-07-10
AU7720094A (en)	1995-03-22
WO1995006772A1 (en)	1995-03-09
EP0720676A4 (en)	1998-03-04
CA2170398A1 (en)	1995-03-09
BR9407409A (pt)	1996-11-12

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