FI964632A0 - Förfarande för avlägsnande av metallsammansättningar ur lignocellulosamäld - Google Patents

Förfarande för avlägsnande av metallsammansättningar ur lignocellulosamäld

Info

Publication number: FI964632A0
Authority: FI; Finland
Prior art keywords: pct; metal compounds; pulp; during; oxygen bleaching
Prior art date: 1994-05-24

Application number

FI964632A

Other languages

English (en)

Finnish (fi)

Other versions

FI964632A (sv

Inventor

Hans Olov Samuelsson

Original Assignee

Aga Ab

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.)

1994-05-24

Filing date

1996-11-20

Publication date

1996-11-20

1996-11-20 Application filed by Aga Ab filed Critical Aga Ab

1996-11-20 Publication of FI964632A0 publication Critical patent/FI964632A0/sv

1997-01-14 Publication of FI964632A publication Critical patent/FI964632A/sv

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
- D21C9/147—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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Compounds Of Unknown Constitution (AREA)

FI964632A 1994-05-24 1996-11-20 Förfarande för avlägsnande av metallsammansättningar ur lignocellulosamäld FI964632A (sv)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE9401771A SE9401771D0 (sv)	1994-05-24	1994-05-24	Process for removal of metal compounds in lignocellulosic pulp
PCT/SE1995/000433 WO1995032332A1 (en)	1994-05-24	1995-04-21	Process for removal of metal compounds in lignocellulosic pulp

Publications (2)

Publication Number	Publication Date
FI964632A0 true FI964632A0 (sv)	1996-11-20
FI964632A FI964632A (sv)	1997-01-14

Family

ID=20394098

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI964632A FI964632A (sv)	1994-05-24	1996-11-20	Förfarande för avlägsnande av metallsammansättningar ur lignocellulosamäld

Country Status (13)

Country	Link
US (1)	US5985097A (sv)
EP (1)	EP0763156B1 (sv)
JP (1)	JPH10503810A (sv)
AT (1)	ATE205899T1 (sv)
BR (1)	BR9507751A (sv)
CA (1)	CA2191081C (sv)
DE (1)	DE69522802T2 (sv)
ES (1)	ES2161891T3 (sv)
FI (1)	FI964632A (sv)
NO (1)	NO964968L (sv)
PT (1)	PT763156E (sv)
SE (1)	SE9401771D0 (sv)
WO (1)	WO1995032332A1 (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6605350B1 (en) *	1996-08-23	2003-08-12	Weyerhaeuser Company	Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same
US6331354B1 (en) *	1996-08-23	2001-12-18	Weyerhaeuser Company	Alkaline pulp having low average degree of polymerization values and method of producing the same
US7097737B2 (en) *	2003-04-16	2006-08-29	Weyerhaeuser Company	Method of making a modified unbleached pulp for lyocell products
US6790527B1 (en)	2003-04-16	2004-09-14	Weyerhaeuser Company	Lyocell fiber from unbleached pulp
US20040207110A1 (en) *	2003-04-16	2004-10-21	Mengkui Luo	Shaped article from unbleached pulp and the process
US6833187B2 (en) *	2003-04-16	2004-12-21	Weyerhaeuser Company	Unbleached pulp for lyocell products
US20060065377A1 (en) *	2004-09-30	2006-03-30	Mengkui Luo	High PH treatment of pulp in a bleach sequence to produce pulp having low D.P. and low copper number for use in lyocell manufacture
US20060070711A1 (en) *	2004-09-30	2006-04-06	Mengkui Luo	Low pH treatment of pulp in a bleach sequence to produce pulp having low D.P. and low copper number for use in lyocell manufacture
US20090090478A1 (en) *	2007-10-05	2009-04-09	Hollomon Martha G	Selectivity improvement in oxygen delignification and bleaching of lignocellulose pulp using singlet oxygen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE360128C (sv) *	1970-08-25	1983-10-31	Mo Och Domsjoe Ab	Sett att bleka cellulosamassa med en syreinnehallande gas i nervaro av alkali
US4087318A (en) *	1974-03-14	1978-05-02	Mo Och Domsjo Aktiebolag	Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound
GB1505529A (en) *	1974-06-14	1978-03-30	Mo Och Domsjoe Ab	Method for the oxygen-gas delignification of lignocellulosic material and apparatus for carrying out the method
JPH06506271A (ja) *	1991-04-08	1994-07-14	インターナショナル・ペーパー・カンパニー	Ｄｚｄ漂白配列の使用による漂白排水からの着色物質の低減方法
WO1994010375A1 (en) *	1992-10-26	1994-05-11	Kamyr, Inc.	Displacement chelate treatment of pulp

1994
- 1994-05-24 SE SE9401771A patent/SE9401771D0/sv unknown
1995
- 1995-04-21 ES ES95920325T patent/ES2161891T3/es not_active Expired - Lifetime
- 1995-04-21 AT AT95920325T patent/ATE205899T1/de active
- 1995-04-21 US US08/737,221 patent/US5985097A/en not_active Expired - Fee Related
- 1995-04-21 JP JP7530226A patent/JPH10503810A/ja active Pending
- 1995-04-21 WO PCT/SE1995/000433 patent/WO1995032332A1/en active IP Right Grant
- 1995-04-21 BR BR9507751A patent/BR9507751A/pt active Search and Examination
- 1995-04-21 CA CA002191081A patent/CA2191081C/en not_active Expired - Fee Related
- 1995-04-21 PT PT95920325T patent/PT763156E/pt unknown
- 1995-04-21 DE DE69522802T patent/DE69522802T2/de not_active Expired - Fee Related
- 1995-04-21 EP EP95920325A patent/EP0763156B1/en not_active Expired - Lifetime
1996
- 1996-11-20 FI FI964632A patent/FI964632A/sv unknown
- 1996-11-22 NO NO964968A patent/NO964968L/no not_active Application Discontinuation

Also Published As

Publication number	Publication date
EP0763156B1 (en)	2001-09-19
NO964968D0 (no)	1996-11-22
CA2191081A1 (en)	1995-11-30
US5985097A (en)	1999-11-16
DE69522802D1 (de)	2001-10-25
JPH10503810A (ja)	1998-04-07
BR9507751A (pt)	1997-08-19
ATE205899T1 (de)	2001-10-15
SE9401771D0 (sv)	1994-05-24
FI964632A (sv)	1997-01-14
NO964968L (no)	1996-11-22
DE69522802T2 (de)	2002-04-11
PT763156E (pt)	2002-02-28
WO1995032332A1 (en)	1995-11-30
ES2161891T3 (es)	2001-12-16
EP0763156A1 (en)	1997-03-19
CA2191081C (en)	2001-07-03

Publication	Publication Date	Title
CA2063591A1 (en)	1991-11-18	Environmentally Improved Process for Bleaching Lignocellulosic Materials
IN189584B (sv)	2003-03-29
FI964632A0 (sv)	1996-11-20	Förfarande för avlägsnande av metallsammansättningar ur lignocellulosamäld
ES2166398T3 (es)	2002-04-16	Metodo para el tratamiento complejo de pasta papelera conjuntamente con una etapa de dioxido de cloro.
ES8400520A1 (es)	1983-10-16	Procedimiento para el tratamiento de pastas papeleras quimicas.
FI950526A (sv)	1995-02-07	Förfarande i samband med massablekning
AU1286795A (en)	1995-07-03	Method for the manufacture of bleached cellulose pulp
SE9700992L (sv)	1997-05-16	Förfarande för blekning av kraftmassa
CA2670697C (en)	2016-03-15	Method for bleaching chemical paper pulps by final ozone treatment at high temperature
SE0004438L (sv)	2001-06-03	Miljövänlig fiberlinje för framställning av blekt kemimassa
CA2275710C (en)	2006-03-14	Treatment of bleach plant filtrates with oxygen
AU565124B2 (en)	1987-09-03	Hypochlorite treatment of chemical paper pulps
SE9600773D0 (sv)	1996-02-28	Medium consistency ozone brightening of high consistency ozone bleached pulp
JPH09512312A (ja)	1997-12-09	セルロースパルプの酸素漂白
FR2454478A1 (fr)	1980-11-14	Procede ameliore de blanchiment de matieres fibreuses cellulosiques
SE9500573D0 (sv)	1995-02-16	Bleaching pulp with peroxide at superatmospheric pressure and in multiple stages
SE0101828D0 (sv)	2001-05-23	Method and apparatus for treating pulp
ES8304242A1 (es)	1983-02-16	Procedimiento mejorado para la preparacion de pastas papeleras quimicas.