BR9203170A - PROCESS TO OBTAIN AN IMPROVED SELECTIVITY OF IMPROVED PULP DURING DIFFICULTY WITH HIGH CONSISTENCY OXYGEN - Google Patents

PROCESS TO OBTAIN AN IMPROVED SELECTIVITY OF IMPROVED PULP DURING DIFFICULTY WITH HIGH CONSISTENCY OXYGEN

Info

Publication number: BR9203170A
Authority: BR; Brazil
Prior art keywords: improved; high consistency; pulp during; consistency oxygen; selectivity
Prior art date: 1991-08-14

Application number

BR929203170A

Other languages

Portuguese (pt)

Inventor

James C Joseph

Christopher H Matthews

Stuarat T Terrett

Spencer W Eachus

Eachus Bruce F Griggs

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.)

1991-08-14

Filing date

1992-08-14

Publication date

1993-03-30

1992-08-14 Application filed by Union Camp Patent Holding filed Critical Union Camp Patent Holding

1993-03-30 Publication of BR9203170A publication Critical patent/BR9203170A/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
- 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
- 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
- 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)

BR929203170A 1991-08-14 1992-08-14 PROCESS TO OBTAIN AN IMPROVED SELECTIVITY OF IMPROVED PULP DURING DIFFICULTY WITH HIGH CONSISTENCY OXYGEN BR9203170A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US74822291A	1991-08-14	1991-08-14

Publications (1)

Publication Number	Publication Date
BR9203170A true BR9203170A (en)	1993-03-30

Family

ID=25008524

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR929203170A BR9203170A (en)	1991-08-14	1992-08-14	PROCESS TO OBTAIN AN IMPROVED SELECTIVITY OF IMPROVED PULP DURING DIFFICULTY WITH HIGH CONSISTENCY OXYGEN

Country Status (11)

Country	Link
EP (1)	EP0530881A1 (en)
JP (1)	JPH0726350B2 (en)
KR (1)	KR950013196B1 (en)
CN (1)	CN1070969A (en)
AU (1)	AU647950B2 (en)
BR (1)	BR9203170A (en)
CA (1)	CA2075875A1 (en)
FI (1)	FI923585L (en)
NO (1)	NO923163L (en)
SE (1)	SE9202338L (en)
ZA (1)	ZA926092B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN1277283A (en) *	1999-06-14	2000-12-20	普拉塞尔技术有限公司	Deoxidized xylon of lignin-cellulose material
FI122241B (en) *	2007-06-15	2011-10-31	Andritz Oy	Procedure in connection with pulp washing at a pulp mill
US9932709B2 (en)	2013-03-15	2018-04-03	Ecolab Usa Inc.	Processes and compositions for brightness improvement in paper production
FI20115754A0 (en) *	2011-03-22	2011-07-15	Andritz Oy	Process and arrangement for the treatment of chemical pulp
EP2954115B1 (en) *	2013-02-08	2022-01-12	GP Cellulose GmbH	Softwood kraft fiber having an improved a-cellulose content and its use in the production of chemical cellulose products
WO2018022427A1 (en) *	2016-07-27	2018-02-01	Ecolab USA, Inc.	Method and compositions for oxygen delignification of chemical pulp
SE544255C2 (en) *	2020-09-03	2022-03-15	Valmet Oy	System for producing cellulose pulp and method for controlling such a system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BR8605554A (en) *	1985-02-14	1987-04-22	Edward Francis Elton	PROCESS FOR THE PRODUCTION OF PAPER AND APPARATUS FOR THE ALKALINE DESIGNIFICATION OF LIGNO-CELLULOSIC FIBROUS MATERIALS
US5179021A (en) *	1989-02-10	1993-01-12	Gil Inc. (Now Ici Canada Inc.)	Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
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
US5173153A (en) *	1991-01-03	1992-12-22	Union Camp Patent Holding, Inc.	Process for enhanced oxygen delignification using high consistency and a split alkali addition
CA2069447C (en) *	1991-04-18	1996-08-27	Bruce F. Griggs	Pulp alkali addition process for high consistency oxygen delignification

1992
- 1992-08-11 FI FI923585A patent/FI923585L/en unknown
- 1992-08-11 EP EP92202469A patent/EP0530881A1/en not_active Ceased
- 1992-08-12 CA CA002075875A patent/CA2075875A1/en not_active Abandoned
- 1992-08-12 AU AU20954/92A patent/AU647950B2/en not_active Ceased
- 1992-08-12 SE SE9202338A patent/SE9202338L/en not_active Application Discontinuation
- 1992-08-13 NO NO92923163A patent/NO923163L/en unknown
- 1992-08-13 ZA ZA926092A patent/ZA926092B/en unknown
- 1992-08-14 JP JP4216806A patent/JPH0726350B2/en not_active Expired - Lifetime
- 1992-08-14 KR KR1019920014738A patent/KR950013196B1/en not_active Expired - Lifetime
- 1992-08-14 BR BR929203170A patent/BR9203170A/en active Search and Examination
- 1992-08-14 CN CN92110875A patent/CN1070969A/en active Pending

Also Published As

Publication number	Publication date
CA2075875A1 (en)	1993-02-15
AU647950B2 (en)	1994-03-31
JPH05195461A (en)	1993-08-03
FI923585A0 (en)	1992-08-11
ZA926092B (en)	1993-03-02
SE9202338D0 (en)	1992-08-12
NO923163L (en)	1993-02-15
SE9202338L (en)	1993-02-15
CN1070969A (en)	1993-04-14
EP0530881A1 (en)	1993-03-10
FI923585A7 (en)	1993-02-15
KR950013196B1 (en)	1995-10-25
KR930004578A (en)	1993-03-22
FI923585L (en)	1993-02-15
JPH0726350B2 (en)	1995-03-22
AU2095492A (en)	1993-02-25
NO923163D0 (en)	1992-08-13

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Legal Events

Date	Code	Title	Description
1995-05-30	EE	Request for examination
2002-03-26	FD5	Application fees: dismissal - article 86 of industrial property law