FI105929B - Parannettu erämenetelmä sulfaattiselluloosan valmistamiseksi - Google Patents

Parannettu erämenetelmä sulfaattiselluloosan valmistamiseksi Download PDF

Info

Publication number: FI105929B
Authority: FI; Finland
Prior art keywords: liquor; cooking; volume; hot; cellulose
Prior art date: 1996-05-30

Application number

FI962260A

Other languages

English (en)

Finnish (fi)

Swedish (sv)

Other versions

FI962260L (fi

FI962260A0 (fi

Inventor

Panu Tikka

Mikael Svedman

Original Assignee

Sunds Defibrator Pori Oy

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.)

1996-05-30

Filing date

1996-05-30

Publication date

2000-10-31

1996-05-30 Application filed by Sunds Defibrator Pori Oy filed Critical Sunds Defibrator Pori Oy

1996-05-30 Publication of FI962260A0 publication Critical patent/FI962260A0/fi

1996-05-30 Priority to FI962260A priority Critical patent/FI105929B/fi

1997-04-16 Priority to DE69705160T priority patent/DE69705160T2/de

1997-04-16 Priority to AT97660041T priority patent/ATE202167T1/de

1997-04-16 Priority to EP97660041A priority patent/EP0810321B1/fr

1997-04-16 Priority to ES97660041T priority patent/ES2159385T3/es

1997-04-16 Priority to PT97660041T priority patent/PT810321E/pt

1997-04-18 Priority to CA002203096A priority patent/CA2203096C/fr

1997-05-06 Priority to ZA9703887A priority patent/ZA973887B/xx

1997-05-09 Priority to AU20162/97A priority patent/AU721440B2/en

1997-05-14 Priority to BR9703156A priority patent/BR9703156A/pt

1997-05-21 Priority to IDP971703A priority patent/ID18445A/id

1997-05-26 Priority to NZ314898A priority patent/NZ314898A/en

1997-05-29 Priority to RU97108781A priority patent/RU2128259C1/ru

1997-05-29 Priority to NO972456A priority patent/NO972456L/no

1997-05-29 Priority to CN97113050A priority patent/CN1109160C/zh

1997-05-30 Priority to JP9158156A priority patent/JPH1053989A/ja

1997-12-01 Publication of FI962260L publication Critical patent/FI962260L/fi

2000-10-31 Application granted granted Critical

2000-10-31 Publication of FI105929B publication Critical patent/FI105929B/fi

Links

238000000034 method Methods 0.000 title claims abstract description 50
238000010923 batch production Methods 0.000 title claims abstract description 9
230000008569 process Effects 0.000 title claims description 37
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title claims description 32
229920002678 cellulose Polymers 0.000 title claims description 16
239000001913 cellulose Substances 0.000 title claims description 16
238000010411 cooking Methods 0.000 claims abstract description 108
238000005470 impregnation Methods 0.000 claims abstract description 37
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 20
239000012452 mother liquor Substances 0.000 claims abstract description 18
238000002425 crystallisation Methods 0.000 claims abstract description 13
230000008025 crystallization Effects 0.000 claims abstract description 13
239000002023 wood Substances 0.000 claims description 53
239000000463 material Substances 0.000 claims description 33
229910021653 sulphate ion Inorganic materials 0.000 claims description 19
229920005610 lignin Polymers 0.000 claims description 13
238000009835 boiling Methods 0.000 claims description 9
239000003518 caustics Substances 0.000 claims description 8
238000011049 filling Methods 0.000 claims description 7
238000002360 preparation method Methods 0.000 claims description 6
238000002203 pretreatment Methods 0.000 claims description 6
239000000706 filtrate Substances 0.000 claims description 5
238000005406 washing Methods 0.000 claims description 5
239000000203 mixture Substances 0.000 claims description 3
239000004744 fabric Substances 0.000 claims description 2
239000000654 additive Substances 0.000 claims 3
235000013580 sausages Nutrition 0.000 claims 1
239000000126 substance Substances 0.000 abstract description 18
238000004519 manufacturing process Methods 0.000 abstract description 13
239000002655 kraft paper Substances 0.000 abstract description 5
238000012423 maintenance Methods 0.000 abstract 1
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 114
235000011121 sodium hydroxide Nutrition 0.000 description 43
239000007788 liquid Substances 0.000 description 17
235000014347 soups Nutrition 0.000 description 17
239000000460 chlorine Substances 0.000 description 14
238000006073 displacement reaction Methods 0.000 description 14
238000004061 bleaching Methods 0.000 description 12
101100457461 Caenorhabditis elegans mnm-2 gene Proteins 0.000 description 9
238000005516 engineering process Methods 0.000 description 8
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
102100030386 Granzyme A Human genes 0.000 description 6
101001009599 Homo sapiens Granzyme A Proteins 0.000 description 6
239000003513 alkali Substances 0.000 description 6
230000008901 benefit Effects 0.000 description 6
229910052801 chlorine Inorganic materials 0.000 description 6
RWSOTUBLDIXVET-UHFFFAOYSA-M hydrosulfide Chemical compound [SH-] RWSOTUBLDIXVET-UHFFFAOYSA-M 0.000 description 6
239000000243 solution Substances 0.000 description 6
101100016516 Caenorhabditis elegans hbl-1 gene Proteins 0.000 description 5
238000002474 experimental method Methods 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 5
239000000123 paper Substances 0.000 description 5
229910052979 sodium sulfide Inorganic materials 0.000 description 5
GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 5
UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
230000000052 comparative effect Effects 0.000 description 4
230000000694 effects Effects 0.000 description 4
-1 hydrosulfide ions Chemical class 0.000 description 4
230000006872 improvement Effects 0.000 description 4
229910052760 oxygen Inorganic materials 0.000 description 4
239000001301 oxygen Substances 0.000 description 4
238000004537 pulping Methods 0.000 description 4
238000011084 recovery Methods 0.000 description 4
238000011282 treatment Methods 0.000 description 4
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
238000006243 chemical reaction Methods 0.000 description 3
238000011161 development Methods 0.000 description 3
230000018109 developmental process Effects 0.000 description 3
238000010438 heat treatment Methods 0.000 description 3
238000010025 steaming Methods 0.000 description 3
229910052717 sulfur Inorganic materials 0.000 description 3
239000011593 sulfur Substances 0.000 description 3
230000002087 whitening effect Effects 0.000 description 3
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
XFAZZQREFHAALG-UHFFFAOYSA-N N-{1-amino-6-[(5-nitro-2-furoyl)amino]-1-oxohexan-2-yl}-23-(indol-3-yl)-20-oxo-4,7,10,13,16-pentaoxa-19-azatricosan-1-amide Chemical compound C=1NC2=CC=CC=C2C=1CCCC(=O)NCCOCCOCCOCCOCCOCCC(=O)NC(C(=O)N)CCCCNC(=O)C1=CC=C([N+]([O-])=O)O1 XFAZZQREFHAALG-UHFFFAOYSA-N 0.000 description 2
235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
235000011613 Pinus brutia Nutrition 0.000 description 2
241000018646 Pinus brutia Species 0.000 description 2
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
238000013459 approach Methods 0.000 description 2
235000010633 broth Nutrition 0.000 description 2
238000009993 causticizing Methods 0.000 description 2
230000007423 decrease Effects 0.000 description 2
238000001704 evaporation Methods 0.000 description 2
230000008020 evaporation Effects 0.000 description 2
238000004076 pulp bleaching Methods 0.000 description 2
238000005086 pumping Methods 0.000 description 2
230000008929 regeneration Effects 0.000 description 2
238000011069 regeneration method Methods 0.000 description 2
239000011734 sodium Substances 0.000 description 2
208000011580 syndromic disease Diseases 0.000 description 2
244000236521 Bupleurum rotundifolium Species 0.000 description 1
206010011878 Deafness Diseases 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
235000005018 Pinus echinata Nutrition 0.000 description 1
241001236219 Pinus echinata Species 0.000 description 1
235000017339 Pinus palustris Nutrition 0.000 description 1
235000008582 Pinus sylvestris Nutrition 0.000 description 1
241000218626 Pinus sylvestris Species 0.000 description 1
241000269913 Pseudopleuronectes americanus Species 0.000 description 1
229920001131 Pulp (paper) Polymers 0.000 description 1
244000269722 Thea sinensis Species 0.000 description 1
239000012670 alkaline solution Substances 0.000 description 1
239000007844 bleaching agent Substances 0.000 description 1
230000003139 buffering effect Effects 0.000 description 1
238000012824 chemical production Methods 0.000 description 1
239000013078 crystal Substances 0.000 description 1
239000011549 crystallization solution Substances 0.000 description 1
230000002950 deficient Effects 0.000 description 1
239000008367 deionised water Substances 0.000 description 1
229910021641 deionized water Inorganic materials 0.000 description 1
238000010586 diagram Methods 0.000 description 1
230000029087 digestion Effects 0.000 description 1
238000011549 displacement method Methods 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
230000007717 exclusion Effects 0.000 description 1
238000000605 extraction Methods 0.000 description 1
239000000835 fiber Substances 0.000 description 1
238000000227 grinding Methods 0.000 description 1
239000011121 hardwood Substances 0.000 description 1
230000010370 hearing loss Effects 0.000 description 1
231100000888 hearing loss Toxicity 0.000 description 1
208000016354 hearing loss disease Diseases 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
239000006193 liquid solution Substances 0.000 description 1
229910052943 magnesium sulfate Inorganic materials 0.000 description 1
235000019341 magnesium sulphate Nutrition 0.000 description 1
238000003801 milling Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
APVPOHHVBBYQAV-UHFFFAOYSA-N n-(4-aminophenyl)sulfonyloctadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NS(=O)(=O)C1=CC=C(N)C=C1 APVPOHHVBBYQAV-UHFFFAOYSA-N 0.000 description 1
239000001839 pinus sylvestris Substances 0.000 description 1
238000000746 purification Methods 0.000 description 1
238000004064 recycling Methods 0.000 description 1
230000009467 reduction Effects 0.000 description 1
238000002791 soaking Methods 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
235000017550 sodium carbonate Nutrition 0.000 description 1
229910000029 sodium carbonate Inorganic materials 0.000 description 1
HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 description 1
239000011122 softwood Substances 0.000 description 1
239000002689 soil Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
238000012360 testing method Methods 0.000 description 1
238000011144 upstream manufacturing Methods 0.000 description 1

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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes

Landscapes

Chemical & Material Sciences (AREA)
Inorganic Chemistry (AREA)
Paper (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Reinforced Plastic Materials (AREA)
Secondary Cells (AREA)

FI962260A 1996-05-30 1996-05-30 Parannettu erämenetelmä sulfaattiselluloosan valmistamiseksi FI105929B (fi)

Priority Applications (16)

Application Number	Priority Date	Filing Date	Title
FI962260A FI105929B (fi)	1996-05-30	1996-05-30	Parannettu erämenetelmä sulfaattiselluloosan valmistamiseksi
DE69705160T DE69705160T2 (de)	1996-05-30	1997-04-16	Diskontinuierliches Verfahren zur Herstellung von verbesserten Kraft-Zellstoffen
AT97660041T ATE202167T1 (de)	1996-05-30	1997-04-16	Diskontinuierliches verfahren zur herstellung von verbesserten kraft-zellstoffen
EP97660041A EP0810321B1 (fr)	1996-05-30	1997-04-16	Procédé en discontinu pour préparation des pâtes kraft ameliorées
ES97660041T ES2159385T3 (es)	1996-05-30	1997-04-16	Proceso discontinuo para preparar pasta kraft mejorada.
PT97660041T PT810321E (pt)	1996-05-30	1997-04-16	Processo de cargas descontinuas para a preparacao de pasta kraft aperfeicoada
CA002203096A CA2203096C (fr)	1996-05-30	1997-04-18	Procede pour la fabrication en discontinu de pate kraft amelioree
ZA9703887A ZA973887B (en)	1996-05-30	1997-05-06	Batch process for preparing improved kraft pulp.
AU20162/97A AU721440B2 (en)	1996-05-30	1997-05-09	Batch process for preparing improved kraft pulp
BR9703156A BR9703156A (pt)	1996-05-30	1997-05-14	Processo intermitente aperfeiçoado para a preparação de polpa kraft
IDP971703A ID18445A (id)	1996-05-30	1997-05-21	Kumpulan proses untuk pembuatan bubur kraft yang dimanfaatkan
NZ314898A NZ314898A (en)	1996-05-30	1997-05-26	Process for preparing kraft pulp by treating the lignin-containing cellulosic material with recycled pulping process liquids, uncausticized cooking liquor and causticized white liquor
RU97108781A RU2128259C1 (ru)	1996-05-30	1997-05-29	Периодический процесс получения крафт-целлюлозы (варианты)
NO972456A NO972456L (no)	1996-05-30	1997-05-29	Fremgangsmåte ved satsvis fremstilling av kraftmasse
CN97113050A CN1109160C (zh)	1996-05-30	1997-05-29	改进的硫酸盐浆的间歇制备方法
JP9158156A JPH1053989A (ja)	1996-05-30	1997-05-30	改良されたクラフトパルプを製造するためのバッチ方法

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI962260		1996-05-30
FI962260A FI105929B (fi)	1996-05-30	1996-05-30	Parannettu erämenetelmä sulfaattiselluloosan valmistamiseksi

Publications (3)

Publication Number	Publication Date
FI962260A0 FI962260A0 (fi)	1996-05-30
FI962260L FI962260L (fi)	1997-12-01
FI105929B true FI105929B (fi)	2000-10-31

Family

ID=8546116

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI962260A FI105929B (fi)	1996-05-30	1996-05-30	Parannettu erämenetelmä sulfaattiselluloosan valmistamiseksi

Country Status (16)

Country	Link
EP (1)	EP0810321B1 (fr)
JP (1)	JPH1053989A (fr)
CN (1)	CN1109160C (fr)
AT (1)	ATE202167T1 (fr)
AU (1)	AU721440B2 (fr)
BR (1)	BR9703156A (fr)
CA (1)	CA2203096C (fr)
DE (1)	DE69705160T2 (fr)
ES (1)	ES2159385T3 (fr)
FI (1)	FI105929B (fr)
ID (1)	ID18445A (fr)
NO (1)	NO972456L (fr)
NZ (1)	NZ314898A (fr)
PT (1)	PT810321E (fr)
RU (1)	RU2128259C1 (fr)
ZA (1)	ZA973887B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6103057A (en) *	1997-06-11	2000-08-15	Fagerlund; Bertil K.	Kraft digesting process wherein a vapor interface is formed by withdrawing hot cooking liquor
FI120361B (fi) *	2003-12-31	2009-09-30	Gl & V Finance Hungary Kft	Eräkeittomenetelmä kraftmassan valmistamiseksi
US7867360B2 (en) *	2004-07-13	2011-01-11	Fpinnovations	Generation of active polysulphide with manganese and bismuth catalysts
CA2651483C (fr) *	2006-05-19	2013-06-18	Raymond Francis	Procedes de pretraitement au carbonate et de reduction en pate de matiere cellulosique
SE531632C2 (sv) *	2007-12-20	2009-06-09	Metso Fiber Karlstad Ab	Förfarande vid tillverkning av sulfatmassa där hemicellulosor återförs
KR20110123184A (ko)	2010-05-06	2011-11-14	바히아 스페셜티 셀룰로스 에스에이	높은 알파 용해 펄프 제조를 위한 방법 및 시스템
RU2535804C2 (ru) *	2010-05-04	2014-12-20	Байа Спешалти Сельюлоз Са	Способ и система производства растворимой целлюлозной массы с высоким содержанием альфа-целлюлозы
RU2523973C1 (ru) *	2010-05-04	2014-07-27	Байа Спешалти Сельюлоз Са	Способ переработки целлюлозной массы холоднощелочной экстракцией с повторным использованием щелочного фильтрата и система для его осуществления
AU2010202496B2 (en) *	2010-05-04	2015-04-16	Bahia Specialty Cellulose Sa	Method and system for high alpha dissolving pulp production
EP2592186A1 (fr) *	2011-11-08	2013-05-15	Södra Cell AB	Procédé de réduction en pâte kraft
CN104452389B (zh) *	2014-11-04	2017-02-15	中国轻工业南宁设计工程有限公司	一种节能的制浆蒸煮顺序联锁控制系统
CN104988781B (zh) *	2015-08-11	2017-01-18	湛江晨鸣浆纸有限公司	一种木片制浆工艺

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3811995A (en) *	1972-09-05	1974-05-21	Westvaco Corp	Method of high yield semichemical pulp production
JPS55103386A (en) *	1979-01-29	1980-08-07	Sanyo Kokusaku Pulp Co	Two stage sulphate digesting method
JPS6059189A (ja) *	1983-08-24	1985-04-05	ベロイト　コ−ポレ−ション	多段式木材チツプ蒸解法
SU1645323A1 (ru) *	1989-04-05	1991-04-30	Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности	Способ получени целлюлозы
FI92224C (fi) *	1991-06-28	1994-10-10	Sunds Defibrator Rauma Oy	Eräprosessi kraftmassan valmistamiseksi
GB9117936D0 (en) *	1991-08-20	1991-10-09	Canada Inc	Production of sodium hydroxide
SE500748C2 (sv) *	1992-10-12	1994-08-22	Bertil Pettersson	Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut
FI95608B (fi) *	1994-06-17	1995-11-15	Ahlstroem Oy	Menetelmä keittolipeiden valmistamiseksi viherlipeää kiteyttämällä
US5674359A (en) *	1995-02-08	1997-10-07	Ahlstrom Machinery Inc.	Continuous cooking of cellulosic fibrous material with cold alkali impregnation

1996
- 1996-05-30 FI FI962260A patent/FI105929B/fi not_active IP Right Cessation
1997
- 1997-04-16 EP EP97660041A patent/EP0810321B1/fr not_active Expired - Lifetime
- 1997-04-16 ES ES97660041T patent/ES2159385T3/es not_active Expired - Lifetime
- 1997-04-16 DE DE69705160T patent/DE69705160T2/de not_active Expired - Fee Related
- 1997-04-16 AT AT97660041T patent/ATE202167T1/de active
- 1997-04-16 PT PT97660041T patent/PT810321E/pt unknown
- 1997-04-18 CA CA002203096A patent/CA2203096C/fr not_active Expired - Lifetime
- 1997-05-06 ZA ZA9703887A patent/ZA973887B/xx unknown
- 1997-05-09 AU AU20162/97A patent/AU721440B2/en not_active Ceased
- 1997-05-14 BR BR9703156A patent/BR9703156A/pt not_active IP Right Cessation
- 1997-05-21 ID IDP971703A patent/ID18445A/id unknown
- 1997-05-26 NZ NZ314898A patent/NZ314898A/en unknown
- 1997-05-29 RU RU97108781A patent/RU2128259C1/ru not_active IP Right Cessation
- 1997-05-29 CN CN97113050A patent/CN1109160C/zh not_active Expired - Fee Related
- 1997-05-29 NO NO972456A patent/NO972456L/no not_active Application Discontinuation
- 1997-05-30 JP JP9158156A patent/JPH1053989A/ja active Pending

Also Published As

Publication number	Publication date
RU2128259C1 (ru)	1999-03-27
ID18445A (id)	1998-04-09
JPH1053989A (ja)	1998-02-24
CA2203096C (fr)	2005-06-28
AU721440B2 (en)	2000-07-06
ZA973887B (en)	1998-02-25
CA2203096A1 (fr)	1997-11-30
NO972456D0 (no)	1997-05-29
ES2159385T3 (es)	2001-10-01
PT810321E (pt)	2001-10-31
AU2016297A (en)	1997-12-04
EP0810321A1 (fr)	1997-12-03
DE69705160D1 (de)	2001-07-19
ATE202167T1 (de)	2001-06-15
FI962260L (fi)	1997-12-01
CN1170795A (zh)	1998-01-21
BR9703156A (pt)	1998-10-27
DE69705160T2 (de)	2002-05-16
FI962260A0 (fi)	1996-05-30
NZ314898A (en)	1998-06-26
NO972456L (no)	1997-12-01
EP0810321B1 (fr)	2001-06-13
CN1109160C (zh)	2003-05-21

Publication	Publication Date	Title
JP2984798B2 (ja)	1999-11-29	前加水分解パルプの製造
EP0921228B1 (fr)	2005-01-26	Procédé pour la préparation de pâte à papier prénettoyée
US4155806A (en)	1979-05-22	Method for continuous alkaline delignification of lignocellulose material in two or more steps, the final of which with oxygen
CA2761757C (fr)	2017-10-10	Procede pour la production de pate
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