FI923585A - Anvaendning av en tvaettpress i en alkalitillsatsprocess foer massa - Google Patents

Anvaendning av en tvaettpress i en alkalitillsatsprocess foer massa Download PDF

Info

Publication number: FI923585A
Authority: FI; Finland
Prior art keywords: tvaettpress; alkalitillsatsprocess; anvaendning; foer; mass
Prior art date: 1991-08-14

Application number

FI923585A

Other languages

English (en)

Other versions

FI923585A0 (fi

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/fi

1993-02-15 Publication of FI923585A publication Critical patent/FI923585A/fi

Links

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)

FI923585A 1991-08-14 1992-08-11 Anvaendning av en tvaettpress i en alkalitillsatsprocess foer massa FI923585A (fi)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number	Publication Date
FI923585A0 FI923585A0 (fi)	1992-08-11
FI923585A true FI923585A (fi)	1993-02-15

Family

ID=25008524

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI923585A FI923585A (fi)	1991-08-14	1992-08-11	Anvaendning av en tvaettpress i en alkalitillsatsprocess foer massa

Country Status (11)

Country	Link
EP (1)	EP0530881A1 (fi)
JP (1)	JPH0726350B2 (fi)
KR (1)	KR950013196B1 (fi)
CN (1)	CN1070969A (fi)
AU (1)	AU647950B2 (fi)
BR (1)	BR9203170A (fi)
CA (1)	CA2075875A1 (fi)
FI (1)	FI923585A (fi)
NO (1)	NO923163L (fi)
SE (1)	SE9202338L (fi)
ZA (1)	ZA926092B (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BR0002634A (pt) *	1999-06-14	2001-01-02	Praxair Technology Inc	Processo para tratar poupa lignocelulósica
FI122241B (fi) *	2007-06-15	2011-10-31	Andritz Oy	Menetelmä massan pesun yhteydessä sellutehtaalla
US9932709B2 (en)	2013-03-15	2018-04-03	Ecolab Usa Inc.	Processes and compositions for brightness improvement in paper production
FI20115754A0 (fi) *	2011-03-22	2011-07-15	Andritz Oy	Menetelmä ja järjestely kemiallisen massan käsittelemiseksi
US10151064B2 (en)	2013-02-08	2018-12-11	Gp Cellulose Gmbh	Softwood kraft fiber having an improved α-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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1986004938A1 (en) *	1985-02-14	1986-08-28	Edward Francis Elton	Method and apparatus for alkaline delignification of lignocellulosic 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
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
AU647485B2 (en) *	1991-04-18	1994-03-24	Union Camp Patent Holding, Inc.	Pulp alkali addition process for high consistency oxygen delignification

1992
- 1992-08-11 FI FI923585A patent/FI923585A/fi 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 SE SE9202338A patent/SE9202338L/ not_active Application Discontinuation
- 1992-08-12 CA CA002075875A patent/CA2075875A1/en not_active Abandoned
- 1992-08-13 ZA ZA926092A patent/ZA926092B/xx unknown
- 1992-08-13 NO NO92923163A patent/NO923163L/no unknown
- 1992-08-14 CN CN92110875A patent/CN1070969A/zh active Pending
- 1992-08-14 JP JP4216806A patent/JPH0726350B2/ja not_active Expired - Lifetime
- 1992-08-14 KR KR1019920014738A patent/KR950013196B1/ko active IP Right Grant
- 1992-08-14 BR BR929203170A patent/BR9203170A/pt active Search and Examination

Also Published As

Publication number	Publication date
ZA926092B (en)	1993-03-02
SE9202338D0 (sv)	1992-08-12
KR930004578A (ko)	1993-03-22
KR950013196B1 (ko)	1995-10-25
BR9203170A (pt)	1993-03-30
AU2095492A (en)	1993-02-25
AU647950B2 (en)	1994-03-31
CA2075875A1 (en)	1993-02-15
JPH05195461A (ja)	1993-08-03
SE9202338L (sv)	1993-02-15
FI923585A0 (fi)	1992-08-11
CN1070969A (zh)	1993-04-14
JPH0726350B2 (ja)	1995-03-22
NO923163L (no)	1993-02-15
EP0530881A1 (en)	1993-03-10
NO923163D0 (no)	1992-08-13

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