FI862546L - Foerfarande foer behandling av oblekta och klorerade kemiska massor med alkali, peroxid och syra. - Google Patents

Foerfarande foer behandling av oblekta och klorerade kemiska massor med alkali, peroxid och syra. Download PDF

Info

Publication number: FI862546L
Authority: FI; Finland
Prior art keywords: och; oblekta; klorerade; massor; med
Prior art date: 1985-06-17

Application number

FI862546A

Other languages

English (en)

Other versions

FI862546A7 (fi

FI862546A0 (fi

Inventor

Norman Liebergott

Lierop Barbara Van

Original Assignee

Pulp Paper Res Inst

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.)

1985-06-17

Filing date

1986-06-16

Publication date

1986-12-18

1986-06-16 Application filed by Pulp Paper Res Inst filed Critical Pulp Paper Res Inst

1986-06-16 Publication of FI862546A0 publication Critical patent/FI862546A0/fi

1986-12-18 Publication of FI862546A7 publication Critical patent/FI862546A7/fi

1986-12-18 Publication of FI862546L publication Critical patent/FI862546L/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

Landscapes

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

FI862546A 1985-06-17 1986-06-16 Foerfarande foer behandling av oblekta och klorerade kemiska massor med alkali, peroxid och syra. FI862546L (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA000484110A CA1251903A (en)	1985-06-17	1985-06-17	Alkaline-peroxide-oxygen treatment of unbleached and chlorinated chemical pulps

Publications (3)

Publication Number	Publication Date
FI862546A0 FI862546A0 (fi)	1986-06-16
FI862546A7 FI862546A7 (fi)	1986-12-18
FI862546L true FI862546L (fi)	1986-12-18

Family

ID=4130718

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI862546A FI862546L (fi)	1985-06-17	1986-06-16	Foerfarande foer behandling av oblekta och klorerade kemiska massor med alkali, peroxid och syra.

Country Status (6)

Country	Link
EP (1)	EP0206560A3 (fi)
JP (1)	JPS6253497A (fi)
BR (1)	BR8602790A (fi)
CA (1)	CA1251903A (fi)
FI (1)	FI862546L (fi)
NO (1)	NO862381L (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA2023916A1 (en) *	1989-11-11	1991-05-12	Augustine I Dalton	Delignification of lignocellulose-containing fiber
US6231718B1 (en)	1992-02-28	2001-05-15	International Paper Company	Two phase ozone and oxygen pulp treatment
SE500616C2 (sv) *	1993-06-08	1994-07-25	Kvaerner Pulping Tech	Blekning av kemisk massa med peroxid vid övertryck
US9932709B2 (en)	2013-03-15	2018-04-03	Ecolab Usa Inc.	Processes and compositions for brightness improvement in paper production
WO2012038966A1 (en)	2010-09-22	2012-03-29	Tyche Industries Ltd.	Process for the preparation of donepezil intermediate
TW201544652A (zh)	2014-05-20	2015-12-01	Georgia Pacific Consumer Prod	非木材纖維之漂白及植物性雜質減量方法
TW201610265A (zh)	2014-05-20	2016-03-16	喬治亞太平洋消費者產品公司	非木材纖維之漂白及植物性雜質減量方法
TW201610261A (zh) *	2014-05-20	2016-03-16	喬治亞太平洋消費者產品公司	非木材纖維之漂白及植物性雜質減量方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1100709A (en) *	1965-06-25	1968-01-24	Pulp Paper Res Inst	Two-stage purification of fibrous cellulose material
US3719552A (en) *	1971-06-18	1973-03-06	American Cyanamid Co	Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide
DE3207157C1 (de) *	1982-02-27	1983-06-09	Degussa Ag, 6000 Frankfurt	Verfahren zur Herstellung von halbgebleichten Zellstoffen
US4568420B1 (en) *	1984-12-03	1999-03-02	Int Paper Co	Multi-stage bleaching process including an enhanced oxidative extraction stage

1985
- 1985-06-17 CA CA000484110A patent/CA1251903A/en not_active Expired
1986
- 1986-05-30 EP EP86304123A patent/EP0206560A3/en not_active Ceased
- 1986-06-16 FI FI862546A patent/FI862546L/fi not_active Application Discontinuation
- 1986-06-16 NO NO862381A patent/NO862381L/no unknown
- 1986-06-16 BR BR8602790A patent/BR8602790A/pt unknown
- 1986-06-17 JP JP61141210A patent/JPS6253497A/ja active Pending

Also Published As

Publication number	Publication date
NO862381L (no)	1986-12-18
FI862546A7 (fi)	1986-12-18
CA1251903A (en)	1989-04-04
FI862546A0 (fi)	1986-06-16
EP0206560A3 (en)	1988-07-20
NO862381D0 (no)	1986-06-16
EP0206560A2 (en)	1986-12-30
JPS6253497A (ja)	1987-03-09
BR8602790A (pt)	1987-02-10

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Legal Events

Date	Code	Title	Description
2004-08-31	FD	Application lapsed	Owner name: PULP AND PAPER RESEARCH INSTITUTE OF CANADA