JP2825346B2 - リグノセルロース物質の環境上改良された漂白方法 - Google Patents

リグノセルロース物質の環境上改良された漂白方法

Info

Publication number: JP2825346B2
Authority: JP; Japan
Prior art keywords: pulp; ozone; consistency; bleaching; lignin
Prior art date: 1990-05-17
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.): Expired - Lifetime

Application number

JP2508269A

Other languages

English (en)

Japanese (ja)

Other versions

JPH05500243A (ja

Inventor

ブルースエフグリッグス

トーマスピーガンデック

マイケルエイピクリン

アレンローゼン

Original Assignee

ユニオンキャンプコーポレイション

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.)

1990-05-17

Filing date

1990-05-17

Publication date

1998-11-18

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22220868&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP2825346(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1990-05-17 Application filed by ユニオンキャンプコーポレイション filed Critical ユニオンキャンプコーポレイション

1993-01-21 Publication of JPH05500243A publication Critical patent/JPH05500243A/ja

1998-11-18 Application granted granted Critical

1998-11-18 Publication of JP2825346B2 publication Critical patent/JP2825346B2/ja

2013-11-18 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000004061 bleaching Methods 0.000 title claims abstract description 124
238000000034 method Methods 0.000 title claims description 266
239000012978 lignocellulosic material Substances 0.000 title claims description 15
238000004537 pulping Methods 0.000 claims abstract description 60
238000005406 washing Methods 0.000 claims abstract description 39
150000002978 peroxides Chemical class 0.000 claims abstract description 15
CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 177
230000008569 process Effects 0.000 claims description 159
229910052760 oxygen Inorganic materials 0.000 claims description 106
239000001301 oxygen Substances 0.000 claims description 104
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 103
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 76
229920005610 lignin Polymers 0.000 claims description 55
238000011282 treatment Methods 0.000 claims description 51
239000000126 substance Substances 0.000 claims description 45
239000004155 Chlorine dioxide Substances 0.000 claims description 38
235000019398 chlorine dioxide Nutrition 0.000 claims description 38
239000007789 gas Substances 0.000 claims description 36
239000000203 mixture Substances 0.000 claims description 34
239000002245 particle Substances 0.000 claims description 30
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
239000007844 bleaching agent Substances 0.000 claims description 25
238000006243 chemical reaction Methods 0.000 claims description 22
239000012670 alkaline solution Substances 0.000 claims description 21
239000000463 material Substances 0.000 claims description 21
239000003513 alkali Substances 0.000 claims description 20
230000002829 reductive effect Effects 0.000 claims description 16
239000007788 liquid Substances 0.000 claims description 14
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 12
239000000706 filtrate Substances 0.000 claims description 12
238000002156 mixing Methods 0.000 claims description 10
239000002738 chelating agent Substances 0.000 claims description 8
239000007864 aqueous solution Substances 0.000 claims description 7
230000002378 acidificating effect Effects 0.000 claims description 6
150000001805 chlorine compounds Chemical class 0.000 claims description 5
229910021645 metal ion Inorganic materials 0.000 claims description 5
238000003801 milling Methods 0.000 claims description 5
150000002926 oxygen Chemical class 0.000 claims description 5
238000009827 uniform distribution Methods 0.000 claims description 4
239000002699 waste material Substances 0.000 claims description 4
230000003381 solubilizing effect Effects 0.000 claims description 3
238000004064 recycling Methods 0.000 claims 2
239000002351 wastewater Substances 0.000 claims 2
125000002081 peroxide group Chemical group 0.000 claims 1
239000002655 kraft paper Substances 0.000 abstract description 44
239000002023 wood Substances 0.000 abstract description 29
238000012216 screening Methods 0.000 abstract description 9
230000029087 digestion Effects 0.000 abstract description 5
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 53
239000000835 fiber Substances 0.000 description 42
239000000460 chlorine Substances 0.000 description 31
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 30
229910052801 chlorine Inorganic materials 0.000 description 29
229920002678 cellulose Polymers 0.000 description 23
239000001913 cellulose Substances 0.000 description 23
238000000605 extraction Methods 0.000 description 23
239000011121 hardwood Substances 0.000 description 22
230000008859 change Effects 0.000 description 19
238000012545 processing Methods 0.000 description 18
239000011122 softwood Substances 0.000 description 18
239000000123 paper Substances 0.000 description 17
239000000243 solution Substances 0.000 description 15
238000006385 ozonation reaction Methods 0.000 description 13
238000010411 cooking Methods 0.000 description 12
230000008901 benefit Effects 0.000 description 11
230000015556 catabolic process Effects 0.000 description 10
239000003518 caustics Substances 0.000 description 10
238000006731 degradation reaction Methods 0.000 description 10
239000000047 product Substances 0.000 description 10
238000011084 recovery Methods 0.000 description 10
238000004140 cleaning Methods 0.000 description 9
230000009467 reduction Effects 0.000 description 9
230000002087 whitening effect Effects 0.000 description 9
241000218631 Coniferophyta Species 0.000 description 7
238000010790 dilution Methods 0.000 description 7
239000012895 dilution Substances 0.000 description 7
230000007613 environmental effect Effects 0.000 description 7
238000010025 steaming Methods 0.000 description 7
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
230000000694 effects Effects 0.000 description 6
238000005516 engineering process Methods 0.000 description 6
230000003628 erosive effect Effects 0.000 description 6
229920003043 Cellulose fiber Polymers 0.000 description 5
235000008331 Pinus X rigitaeda Nutrition 0.000 description 5
235000011613 Pinus brutia Nutrition 0.000 description 5
241000018646 Pinus brutia Species 0.000 description 5
230000000875 corresponding effect Effects 0.000 description 5
230000006872 improvement Effects 0.000 description 5
239000007791 liquid phase Substances 0.000 description 5
239000010865 sewage Substances 0.000 description 5
230000008719 thickening Effects 0.000 description 5
229920001131 Pulp (paper) Polymers 0.000 description 4
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 4
PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 4
150000004056 anthraquinones Chemical class 0.000 description 4
239000012159 carrier gas Substances 0.000 description 4
230000000052 comparative effect Effects 0.000 description 4
150000001875 compounds Chemical class 0.000 description 4
239000002657 fibrous material Substances 0.000 description 4
229910052751 metal Inorganic materials 0.000 description 4
239000002184 metal Substances 0.000 description 4
230000000704 physical effect Effects 0.000 description 4
239000003265 pulping liquor Substances 0.000 description 4
239000000376 reactant Substances 0.000 description 4
239000002002 slurry Substances 0.000 description 4
238000012360 testing method Methods 0.000 description 4
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 3
235000005018 Pinus echinata Nutrition 0.000 description 3
241001236219 Pinus echinata Species 0.000 description 3
235000017339 Pinus palustris Nutrition 0.000 description 3
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
238000009825 accumulation Methods 0.000 description 3
230000002411 adverse Effects 0.000 description 3
239000007795 chemical reaction product Substances 0.000 description 3
MAYPHUUCLRDEAZ-UHFFFAOYSA-N chlorine peroxide Inorganic materials ClOOCl MAYPHUUCLRDEAZ-UHFFFAOYSA-N 0.000 description 3
238000000354 decomposition reaction Methods 0.000 description 3
PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
239000010931 gold Substances 0.000 description 3
229910052737 gold Inorganic materials 0.000 description 3
238000004519 manufacturing process Methods 0.000 description 3
238000005374 membrane filtration Methods 0.000 description 3
238000012986 modification Methods 0.000 description 3
230000004048 modification Effects 0.000 description 3
230000003287 optical effect Effects 0.000 description 3
230000001590 oxidative effect Effects 0.000 description 3
238000006213 oxygenation reaction Methods 0.000 description 3
238000003825 pressing Methods 0.000 description 3
238000010298 pulverizing process Methods 0.000 description 3
241000894007 species Species 0.000 description 3
241000196324 Embryophyta Species 0.000 description 2
235000008566 Pinus taeda Nutrition 0.000 description 2
241000218679 Pinus taeda Species 0.000 description 2
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
239000002253 acid Substances 0.000 description 2
230000009286 beneficial effect Effects 0.000 description 2
239000006227 byproduct Substances 0.000 description 2
150000001720 carbohydrates Chemical class 0.000 description 2
235000014633 carbohydrates Nutrition 0.000 description 2
239000003795 chemical substances by application Substances 0.000 description 2
238000005660 chlorination reaction Methods 0.000 description 2
239000003086 colorant Substances 0.000 description 2
238000005260 corrosion Methods 0.000 description 2
230000007797 corrosion Effects 0.000 description 2
230000001186 cumulative effect Effects 0.000 description 2
238000010586 diagram Methods 0.000 description 2
238000006073 displacement reaction Methods 0.000 description 2
229920001971 elastomer Polymers 0.000 description 2
230000008030 elimination Effects 0.000 description 2
238000003379 elimination reaction Methods 0.000 description 2
239000003344 environmental pollutant Substances 0.000 description 2
238000002474 experimental method Methods 0.000 description 2
238000001914 filtration Methods 0.000 description 2
238000000227 grinding Methods 0.000 description 2
WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
230000000670 limiting effect Effects 0.000 description 2
238000005259 measurement Methods 0.000 description 2
150000002739 metals Chemical class 0.000 description 2
BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
235000006408 oxalic acid Nutrition 0.000 description 2
229920005646 polycarboxylate Polymers 0.000 description 2
229920000642 polymer Polymers 0.000 description 2
230000002035 prolonged effect Effects 0.000 description 2
230000035484 reaction time Effects 0.000 description 2
238000002310 reflectometry Methods 0.000 description 2
238000001223 reverse osmosis Methods 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
239000011343 solid material Substances 0.000 description 2
239000007858 starting material Substances 0.000 description 2
238000012546 transfer Methods 0.000 description 2
OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
241001465754 Metazoa Species 0.000 description 1
241000183024 Populus tremula Species 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
229920002522 Wood fibre Polymers 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
230000009471 action Effects 0.000 description 1
239000012042 active reagent Substances 0.000 description 1
238000005054 agglomeration Methods 0.000 description 1
230000002776 aggregation Effects 0.000 description 1
150000001408 amides Chemical class 0.000 description 1
238000013459 approach Methods 0.000 description 1
239000008346 aqueous phase Substances 0.000 description 1
230000033228 biological regulation Effects 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
238000007664 blowing Methods 0.000 description 1
238000005282 brightening Methods 0.000 description 1
230000009920 chelation Effects 0.000 description 1
238000001311 chemical methods and process Methods 0.000 description 1
229910001902 chlorine oxide Inorganic materials 0.000 description 1
230000001427 coherent effect Effects 0.000 description 1
238000002485 combustion reaction Methods 0.000 description 1
230000006835 compression Effects 0.000 description 1
238000007906 compression Methods 0.000 description 1
230000001143 conditioned effect Effects 0.000 description 1
238000010276 construction Methods 0.000 description 1
239000002826 coolant Substances 0.000 description 1
230000002596 correlated effect Effects 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
238000009792 diffusion process Methods 0.000 description 1
VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
239000005446 dissolved organic matter Substances 0.000 description 1
238000009826 distribution Methods 0.000 description 1
238000004710 electron pair approximation Methods 0.000 description 1
238000003912 environmental pollution Methods 0.000 description 1
230000001747 exhibiting effect Effects 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
239000012467 final product Substances 0.000 description 1
244000144992 flock Species 0.000 description 1
235000019253 formic acid Nutrition 0.000 description 1
239000013505 freshwater Substances 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
150000002431 hydrogen Chemical class 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
238000010348 incorporation Methods 0.000 description 1
239000011261 inert gas Substances 0.000 description 1
229910001504 inorganic chloride Inorganic materials 0.000 description 1
239000012263 liquid product Substances 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
150000002894 organic compounds Chemical class 0.000 description 1
238000000643 oven drying Methods 0.000 description 1
238000005949 ozonolysis reaction Methods 0.000 description 1
229960003330 pentetic acid Drugs 0.000 description 1
KFSLWBXXFJQRDL-UHFFFAOYSA-N peroxyacetic acid Substances CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 1
239000012071 phase Substances 0.000 description 1
231100000719 pollutant Toxicity 0.000 description 1
238000006116 polymerization reaction Methods 0.000 description 1
239000012286 potassium permanganate Substances 0.000 description 1
238000007639 printing Methods 0.000 description 1
ODLMAHJVESYWTB-UHFFFAOYSA-N propylbenzene Chemical group CCCC1=CC=CC=C1 ODLMAHJVESYWTB-UHFFFAOYSA-N 0.000 description 1
239000011802 pulverized particle Substances 0.000 description 1
239000002994 raw material Substances 0.000 description 1
230000009257 reactivity Effects 0.000 description 1
230000003134 recirculating effect Effects 0.000 description 1
230000008929 regeneration Effects 0.000 description 1
238000011069 regeneration method Methods 0.000 description 1
238000011160 research Methods 0.000 description 1
230000004044 response Effects 0.000 description 1
229920006395 saturated elastomer Polymers 0.000 description 1
229910052979 sodium sulfide Inorganic materials 0.000 description 1
GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
239000002689 soil Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
239000002195 soluble material Substances 0.000 description 1
238000010561 standard procedure Methods 0.000 description 1
230000003068 static effect Effects 0.000 description 1
229910021653 sulphate ion Inorganic materials 0.000 description 1
239000000725 suspension Substances 0.000 description 1
239000002562 thickening agent Substances 0.000 description 1
231100000331 toxic Toxicity 0.000 description 1
230000002588 toxic effect Effects 0.000 description 1
239000002025 wood fiber Substances 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
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Dry Formation Of Fiberboard And The Like (AREA)
Detergent Compositions (AREA)

JP2508269A 1990-05-17 1990-05-17 リグノセルロース物質の環境上改良された漂白方法 Expired - Lifetime JP2825346B2 (ja)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/US1990/002823 WO1991018145A1 (en)	1990-05-17	1990-05-17	Environmentally improved process for bleaching lignocellulosic materials

Publications (2)

Publication Number	Publication Date
JPH05500243A JPH05500243A (ja)	1993-01-21
JP2825346B2 true JP2825346B2 (ja)	1998-11-18

Family

ID=22220868

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP2508269A Expired - Lifetime JP2825346B2 (ja)	1990-05-17	1990-05-17	リグノセルロース物質の環境上改良された漂白方法

Country Status (16)

Country	Link
EP (1)	EP0483163B1 (pt)
JP (1)	JP2825346B2 (pt)
KR (1)	KR920703922A (pt)
CN (1)	CN1043798C (pt)
AT (1)	ATE122421T1 (pt)
AU (1)	AU638017B2 (pt)
BR (1)	BR9007533A (pt)
CA (1)	CA2063591C (pt)
DE (1)	DE69019350T2 (pt)
ES (1)	ES2073027T3 (pt)
NO (1)	NO300929B1 (pt)
PT (1)	PT98487B (pt)
RU (1)	RU2102547C1 (pt)
SE (1)	SE9200107L (pt)
WO (1)	WO1991018145A1 (pt)
ZA (1)	ZA915969B (pt)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5472572A (en) *	1990-10-26	1995-12-05	Union Camp Patent Holding, Inc.	Reactor for bleaching high consistency pulp with ozone
US5441603A (en) *	1990-05-17	1995-08-15	Union Camp Patent Holding, Inc.	Method for chelation of pulp prior to ozone delignification
US5328564A (en) *	1990-09-17	1994-07-12	Kamyr, Inc.	Modified digestion of paper pulp followed by ozone bleaching
EP0565625A1 (en) *	1991-01-03	1993-10-20	Union Camp Patent Holding, Inc.	Chlorine-free process for bleaching lignocellulosic pulp
SE468355B (sv) *	1991-04-30	1992-12-21	Eka Nobel Ab	Blekning av kemisk massa genom behandling med komplexbildare och ozon
DE69221385T2 (de) †	1991-05-24	1997-12-11	Union Camp Patent Holding, Inc., Wilmington, Del.	Zweistufiger Reaktor zum Bleichen von Zellstoff und Verfahren zum Bleichen mit Ozon
US5364503A (en) *	1992-02-20	1994-11-15	Macmillan Bloedel Limited	Nitric oxide treatment for ozone bleaching
CA2089516A1 (en) *	1992-02-21	1993-08-22	Kaj Henricson	Chlorine free pulping and bleaching sequence
SE9201477L (sv) *	1992-05-11	1993-06-28	Kamyr Ab	Saett vid blekning av massa utan anvaendning av klorkemikalier
NZ256783A (en) *	1992-10-01	1996-08-27	Union Camp Patent Holding	Bleaching high consistency lignocellulosic pulp from a first ge brightness to a second higher ge brightness by fluffing the pulp to a specific surface area of at least 90m2kg-1 followed by treatment with a gaseous bleaching agent
US5403441A (en) *	1992-11-13	1995-04-04	Union Camp Patent Holding, Inc.	Method for controlling an ozone bleaching process
SE501613C2 (sv) *	1993-08-03	1995-03-27	Kvaerner Pulping Tech	Sätt vid integrering av blekning och återvinning vid framställning av massa
CA2170398A1 (en) *	1993-09-02	1995-03-09	Michael A. Pikulin	Improved method for bleaching lignocellulosic pulp
AU7721694A (en) *	1993-09-03	1995-03-22	Union Camp Patent Holding, Inc.	Medium consistency ozone brightening of high consistency ozone bleached pulp
US5810973A (en) *	1993-09-21	1998-09-22	Beloit Technologies, Inc.	Apparatus for producing small particles from high consistency wood pulp
SE502172C2 (sv) *	1993-12-15	1995-09-04	Mo Och Domsjoe Ab	Förfarande för framställning av blekt cellulosamassa med en klorfri bleksekvens i närvaro av karbonat
ATE176285T1 (de) *	1994-06-27	1999-02-15	Champion Int Corp	Verbessertes verfahren zum wiedergewinnen von filtraten von blechgeräte
US5736004A (en) *	1995-03-03	1998-04-07	Union Camp Patent Holding, Inc.	Control scheme for rapid pulp delignification and bleaching
US5672247A (en) *	1995-03-03	1997-09-30	Union Camp Patent Holding, Inc.	Control scheme for rapid pulp delignification and bleaching
US5944952A (en) *	1995-07-26	1999-08-31	Beloit Technologies, Inc.	Method for bleaching high consistency pulp with a gaseous bleaching reagent
CN1050642C (zh) *	1996-06-25	2000-03-22	华南理工大学	高浓纸浆过氧化氢漂白方法
US6077396A (en) *	1997-05-16	2000-06-20	Lariviere; Christopher J.	Apparatus for fluffing and contacting high consistancy wood pulp with a gaseous bleaching reagent
ID23571A (id) *	1997-08-25	2000-05-04	Praxair Technology Inc	Metoda penerapan ozon dalam pemutihan ecf
FI121792B (fi) *	2003-06-30	2011-04-15	Andritz Oy	Menetelmä massan käsittelemiseksi kemiallisen massan valkaisun yhteydessä
US7914646B2 (en) *	2006-07-21	2011-03-29	Nalco Company	Compositions and processes for paper production
FR2910027B1 (fr) *	2006-12-13	2009-11-06	Itt Mfg Enterprises Inc	Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature
FI119062B (fi) *	2006-12-28	2008-07-15	Upm Kymmene Corp	Menetelmä mekaanisen massan valmistamiseksi
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1990
- 1990-05-17 JP JP2508269A patent/JP2825346B2/ja not_active Expired - Lifetime
- 1990-05-17 KR KR1019920700104A patent/KR920703922A/ko not_active Abandoned
- 1990-05-17 BR BR909007533A patent/BR9007533A/pt not_active IP Right Cessation
- 1990-05-17 AU AU56768/90A patent/AU638017B2/en not_active Ceased
- 1990-05-17 ES ES90908787T patent/ES2073027T3/es not_active Expired - Lifetime
- 1990-05-17 WO PCT/US1990/002823 patent/WO1991018145A1/en not_active Ceased
- 1990-05-17 EP EP90908787A patent/EP0483163B1/en not_active Expired - Lifetime
- 1990-05-17 AT AT90908787T patent/ATE122421T1/de not_active IP Right Cessation
- 1990-05-17 CA CA002063591A patent/CA2063591C/en not_active Expired - Lifetime
- 1990-05-17 DE DE69019350T patent/DE69019350T2/de not_active Expired - Fee Related
- 1990-05-17 RU SU5011189A patent/RU2102547C1/ru active
1991
- 1991-07-29 PT PT98487A patent/PT98487B/pt not_active IP Right Cessation
- 1991-07-30 ZA ZA915969A patent/ZA915969B/xx unknown
- 1991-08-07 CN CN91108650A patent/CN1043798C/zh not_active Expired - Lifetime
1992
- 1992-01-15 SE SE9200107A patent/SE9200107L/xx not_active Application Discontinuation
- 1992-01-16 NO NO920217A patent/NO300929B1/no not_active IP Right Cessation

Also Published As

Publication number	Publication date
CA2063591C (en)	1998-02-03
EP0483163B1 (en)	1995-05-10
CN1069304A (zh)	1993-02-24
PT98487A (pt)	1993-01-29
NO920217D0 (no)	1992-01-16
RU2102547C1 (ru)	1998-01-20
JPH05500243A (ja)	1993-01-21
PT98487B (pt)	1998-06-30
AU638017B2 (en)	1993-06-17
NO920217L (no)	1992-03-05
BR9007533A (pt)	1992-04-28
ES2073027T3 (es)	1995-08-01
WO1991018145A1 (en)	1991-11-28
CN1043798C (zh)	1999-06-23
DE69019350D1 (de)	1995-06-14
CA2063591A1 (en)	1991-11-18
KR920703922A (ko)	1992-12-18
SE9200107D0 (sv)	1992-01-15
ATE122421T1 (de)	1995-05-15
SE9200107L (en)	1992-03-13
ZA915969B (en)	1992-04-29
NO300929B1 (no)	1997-08-18
EP0483163A1 (en)	1992-05-06
DE69019350T2 (de)	1996-02-15
EP0483163A4 (en)	1992-08-05
AU5676890A (en)	1991-12-10

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Publication	Publication Date	Title
JP2825346B2 (ja)	1998-11-18	リグノセルロース物質の環境上改良された漂白方法
US5164044A (en)	1992-11-17	Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164043A (en)	1992-11-17	Environmentally improved process for bleaching lignocellulosic materials with ozone
US5211811A (en)	1993-05-18	Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
CA1259456A (en)	1989-09-19	Enhanced oxidative extraction
US5188708A (en)	1993-02-23	Process for high consistency oxygen delignification followed by ozone relignification
US5409570A (en)	1995-04-25	Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
NZ242466A (en)	1994-08-26	Delignification of chemical pulp with a trace-metal complexing agent at a ph of 3 to 9, followed by bleaching with ozone then a peroxide
FI105213B (fi)	2000-06-30	Menetelmä valkaistun massan valmistamiseksi lignoselluloosamateriaalista
JP3283259B2 (ja)	2002-05-20	廃セルロース性紙製品の酸素脱リグニン化
EP0542147B1 (en)	1997-01-29	Cleaning and bleaching of secondary fiber
EP0519061B1 (en)	1995-08-30	Split alkali addition for high consistency oxygen delignification
US5441603A (en)	1995-08-15	Method for chelation of pulp prior to ozone delignification
US5728264A (en)	1998-03-17	Avoidance of salt scaling by acidic pulp washing process
WO1992012289A1 (en)	1992-07-23	Chlorine-free process for bleaching lignocellulosic pulp
CA1147909A (en)	1983-06-14	Method for delignifying and/or bleaching cellulose pulp
WO1995006772A1 (en)	1995-03-09	Improved method for bleaching lignocellulosic pulp
EP0530881A1 (en)	1993-03-10	Use of wash press for pulp alkali addition process
EP0902120A1 (en)	1999-03-17	Process for bleaching a paper pulp with ozone and chlorine dioxide
EP0579744A1 (en)	1994-01-26	Method for reducing colored matter from bleach effluent using a dzd bleach sequence
WO1995006773A1 (en)	1995-03-09	Medium consistency ozone brightening of high consistency ozone bleached pulp
CN1104274A (zh)	1995-06-28	高浓度木化纤维浆的改进漂白法
CA2023904C (en)	1995-11-28	Deinking and bleaching secondary fiber
JP2002069879A (ja)	2002-03-08	セルロース質繊維材料のパルプの漂白方法
NZ239171A (en)	1993-07-27	Manufacture of bleached pulp by chemical digestion, partial delignification with oxygen, then substantial delignification with ozone