AU2095492A - Use of wash press for pulp alkali addition process - Google Patents

Use of wash press for pulp alkali addition process

Info

Publication number: AU2095492A
Authority: AU; Australia
Prior art keywords: addition process; alkali addition; wash press; pulp alkali; pulp
Prior art date: 1991-08-14
Legal status (The legal status 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 status listed.): Granted

Application number

AU20954/92A

Other versions

AU647950B2 (en

Inventor

Spencer W. Eachus

Bruce F Griggs

James C. Joseph

Christopher H. Matthews

Stuart T. Terrett

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Union Camp Patent Holding Inc

Original Assignee

Union Camp Patent Holding Inc

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

1992-08-12

Publication date

1993-02-25

1992-08-12 Application filed by Union Camp Patent Holding Inc filed Critical Union Camp Patent Holding Inc

1993-02-25 Publication of AU2095492A publication Critical patent/AU2095492A/en

1994-03-31 Application granted granted Critical

1994-03-31 Publication of AU647950B2 publication Critical patent/AU647950B2/en

2012-08-12 Anticipated expiration legal-status Critical

Status Ceased legal-status Critical Current

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)

AU20954/92A 1991-08-14 1992-08-12 Use of wash press for pulp alkali addition process Ceased AU647950B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US74822291A	1991-08-14	1991-08-14
US748222		1991-08-14

Publications (2)

Publication Number	Publication Date
AU2095492A true AU2095492A (en)	1993-02-25
AU647950B2 AU647950B2 (en)	1994-03-31

Family

ID=25008524

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU20954/92A Ceased AU647950B2 (en)	1991-08-14	1992-08-12	Use of wash press for pulp alkali addition 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
CA2311718A1 (en) *	1999-06-14	2000-12-14	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
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
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
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
WO1992018689A1 (en) *	1991-04-18	1992-10-29	Union Camp Patent Holdings Inc.	Pulp alkali addition process for high consistency oxygen delignification

1992
- 1992-08-11 EP EP92202469A patent/EP0530881A1/en not_active Ceased
- 1992-08-11 FI FI923585A patent/FI923585A7/en unknown
- 1992-08-12 SE SE9202338A patent/SE9202338L/en not_active Application Discontinuation
- 1992-08-12 AU AU20954/92A patent/AU647950B2/en not_active Ceased
- 1992-08-12 CA CA002075875A patent/CA2075875A1/en not_active Abandoned
- 1992-08-13 NO NO92923163A patent/NO923163L/en unknown
- 1992-08-13 ZA ZA926092A patent/ZA926092B/en unknown
- 1992-08-14 KR KR1019920014738A patent/KR950013196B1/en not_active Expired - Lifetime
- 1992-08-14 CN CN92110875A patent/CN1070969A/en active Pending
- 1992-08-14 BR BR929203170A patent/BR9203170A/en active Search and Examination
- 1992-08-14 JP JP4216806A patent/JPH0726350B2/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
CN1070969A (en)	1993-04-14
NO923163L (en)	1993-02-15
NO923163D0 (en)	1992-08-13
SE9202338L (en)	1993-02-15
ZA926092B (en)	1993-03-02
JPH0726350B2 (en)	1995-03-22
KR930004578A (en)	1993-03-22
CA2075875A1 (en)	1993-02-15
FI923585L (en)	1993-02-15
FI923585A7 (en)	1993-02-15
KR950013196B1 (en)	1995-10-25
JPH05195461A (en)	1993-08-03
FI923585A0 (en)	1992-08-11
EP0530881A1 (en)	1993-03-10
SE9202338D0 (en)	1992-08-12
BR9203170A (en)	1993-03-30
AU647950B2 (en)	1994-03-31

Publication	Publication Date	Title
AR243946A1 (en)	1993-09-30	Process for the chlorine-free bleaching of pulp
GB2296726B (en)	1998-12-23	Process for making refined cellulose
AU8495191A (en)	1992-04-15	Process for producing chemical pulp
AU1239797A (en)	1997-03-13	Washing of pulp
AU1973692A (en)	1993-01-25	Ozone bleaching process
AU654997B2 (en)	1994-12-01	Process for the delignification of cellulosic fibre raw materials
AU7916491A (en)	1992-06-25	Tumbling ozone reactor for paper pulp
GB2248075B (en)	1994-06-29	Chlorine-free process for bleaching pulp
ZA942727B (en)	1995-01-09	Process for the production of cellulose fibres having a reduced tendency to fibrillation.
AU8799491A (en)	1992-05-21	Process for the preparation of diethers
AU2095492A (en)	1993-02-25	Use of wash press for pulp alkali addition process
AU5896494A (en)	1994-06-22	Processing of pulp
AU4534693A (en)	1994-01-04	Mass cellulose deacidification process
AU3964193A (en)	1993-11-18	Device for cleaning of caustic liquor mixtures
AU5777390A (en)	1991-05-02	Press machine
AU6730390A (en)	1991-05-16	Chlorine dioxide pulp bleaching process using sequential chlorine addition
AU2413088A (en)	1989-04-27	Pulp bleaching process
AU636766B2 (en)	1993-05-06	Pneumatic reactor ozone bleaching of paper pulp
AU2335788A (en)	1989-05-25	Process for bleaching mechanical pulp
LTIP754A (en)	1995-01-31	Process for bleaching of cellulose excluding the use of chlorine
AU1168892A (en)	1992-08-27	Process for bleaching pulp
EP0547409A3 (en)	1993-10-20	Process for preparing alkali acetates
AU4687789A (en)	1990-08-02	A process for bleaching paper stock
AU7752991A (en)	1991-11-27	Bleaching of chemical pulp
GB9217177D0 (en)	1992-09-23	Process for the production of fluff pulp