FI923585L - ANVAENDNING AV EN TVAETTPRESS I EN ALKALITILLLSATSPROCESS FOER MASS - Google Patents

ANVAENDNING AV EN TVAETTPRESS I EN ALKALITILLLSATSPROCESS FOER MASS Download PDF

Info

Publication number: FI923585L
Authority: FI; Finland
Prior art keywords: tvaettpress; alkalitilllsatsprocess; anvaendning; foer; mass
Prior art date: 1991-08-14

Application number

FI923585A

Other languages

Finnish (fi)

Other versions

FI923585A0 (en

FI923585A7 (en

Inventor

James C Joseph

Christopher H Matthews

Stuart T Terrett

Spencer W 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

1992-08-11

Publication date

1993-02-15

1992-08-11 Application filed by Union Camp Patent Holding filed Critical Union Camp Patent Holding

1992-08-11 Publication of FI923585A0 publication Critical patent/FI923585A0/en

1993-02-15 Publication of FI923585L publication Critical patent/FI923585L/en

1993-02-15 Publication of FI923585A7 publication Critical patent/FI923585A7/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
- D21C9/02—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
- 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

Landscapes

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

FI923585A 1991-08-14 1992-08-11 Use of a washing press in the pulp alkalinization process FI923585A7 (en)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number	Publication Date
FI923585A0 FI923585A0 (en)	1992-08-11
FI923585L true FI923585L (en)	1993-02-15
FI923585A7 FI923585A7 (en)	1993-02-15

Family

ID=25008524

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI923585A FI923585A7 (en)	1991-08-14	1992-08-11	Use of a washing press in the pulp alkalinization process

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)	FI923585A7 (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
EP1061173A1 (en) *	1999-06-14	2000-12-20	Praxair Technology, Inc.	Oxygen delignification of lignocellulosic 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
KR102180512B1 (en)	2013-02-08	2020-11-19	게페 첼루로제 게엠베하	Softwood kraft fiber having an improved a-cellulose content and its use in the production of chemical cellulose products
US20180030651A1 (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
FI864154A7 (en) *	1985-02-14	1986-10-14	Edward Francis Elton	Method and apparatus for alkaline removal of lignin from fibrous materials comprising lignocellulose.
US5179021A (en) *	1989-02-10	1993-01-12	Gil Inc. (Now Ici Canada Inc.)	Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
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
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
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/FI923585A7/en unknown
- 1992-08-11 EP EP92202469A patent/EP0530881A1/en not_active Ceased
- 1992-08-12 AU AU20954/92A patent/AU647950B2/en not_active Ceased
- 1992-08-12 CA CA002075875A patent/CA2075875A1/en not_active Abandoned
- 1992-08-12 SE SE9202338A patent/SE9202338L/en not_active Application Discontinuation
- 1992-08-13 ZA ZA926092A patent/ZA926092B/en unknown
- 1992-08-13 NO NO92923163A patent/NO923163L/en unknown
- 1992-08-14 CN CN92110875A patent/CN1070969A/en active Pending
- 1992-08-14 KR KR1019920014738A patent/KR950013196B1/en not_active Expired - Lifetime
- 1992-08-14 JP JP4216806A patent/JPH0726350B2/en not_active Expired - Lifetime
- 1992-08-14 BR BR929203170A patent/BR9203170A/en active Search and Examination

Also Published As

Publication number	Publication date
EP0530881A1 (en)	1993-03-10
AU647950B2 (en)	1994-03-31
CN1070969A (en)	1993-04-14
SE9202338L (en)	1993-02-15
CA2075875A1 (en)	1993-02-15
KR950013196B1 (en)	1995-10-25
ZA926092B (en)	1993-03-02
KR930004578A (en)	1993-03-22
BR9203170A (en)	1993-03-30
NO923163L (en)	1993-02-15
FI923585A0 (en)	1992-08-11
JPH0726350B2 (en)	1995-03-22
SE9202338D0 (en)	1992-08-12
JPH05195461A (en)	1993-08-03
FI923585A7 (en)	1993-02-15
AU2095492A (en)	1993-02-25
NO923163D0 (en)	1992-08-13

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