HRP930456A2 - Process for the chlorine-free bleaching of fibre dissolving pulp - Google Patents
Process for the chlorine-free bleaching of fibre dissolving pulp Download PDFInfo
- Publication number
- HRP930456A2 HRP930456A2 HR930456A HRP930456A HRP930456A2 HR P930456 A2 HRP930456 A2 HR P930456A2 HR 930456 A HR930456 A HR 930456A HR P930456 A HRP930456 A HR P930456A HR P930456 A2 HRP930456 A2 HR P930456A2
- Authority
- HR
- Croatia
- Prior art keywords
- stage
- bleaching
- eop
- phase
- oxygen
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008569 process Effects 0.000 title claims abstract description 17
- 229920000875 Dissolving pulp Polymers 0.000 title 1
- 239000000835 fiber Substances 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 30
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000001301 oxygen Substances 0.000 claims abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000036284 oxygen consumption Effects 0.000 claims abstract description 4
- 238000010790 dilution Methods 0.000 claims abstract description 3
- 239000012895 dilution Substances 0.000 claims abstract description 3
- 150000002978 peroxides Chemical class 0.000 claims abstract description 3
- 229920002678 cellulose Polymers 0.000 claims description 28
- 239000001913 cellulose Substances 0.000 claims description 27
- 229920002994 synthetic fiber Polymers 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 4
- 238000004076 pulp bleaching Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims 1
- 239000007844 bleaching agent Substances 0.000 abstract description 6
- 235000010980 cellulose Nutrition 0.000 description 27
- 239000002912 waste gas Substances 0.000 description 9
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000014466 Douglas bleu Nutrition 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 240000001416 Pseudotsuga menziesii Species 0.000 description 1
- 235000005386 Pseudotsuga menziesii var menziesii Nutrition 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000002087 whitening effect Effects 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
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Artificial Filaments (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Processing Of Solid Wastes (AREA)
- General Preparation And Processing Of Foods (AREA)
- Jellies, Jams, And Syrups (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0026190A AT395028B (de) | 1990-02-07 | 1990-02-07 | Verfahren zum chlorfreien bleichen von kunstfaserzellstoff |
| YU20691A YU47388B (sh) | 1990-02-07 | 1991-02-06 | Postupak za beljenje celuloze za veštačka vlakna bez hlora |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HRP930456A2 true HRP930456A2 (en) | 1995-12-31 |
Family
ID=3485841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HR930456A HRP930456A2 (en) | 1990-02-07 | 1993-03-23 | Process for the chlorine-free bleaching of fibre dissolving pulp |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US5145557A (cs) |
| EP (1) | EP0441113B1 (cs) |
| JP (1) | JPH04300380A (cs) |
| AT (2) | AT395028B (cs) |
| BR (1) | BR9100516A (cs) |
| CA (1) | CA2035698C (cs) |
| CZ (1) | CZ280077B6 (cs) |
| DE (1) | DE59007341D1 (cs) |
| DK (1) | DK0441113T3 (cs) |
| ES (1) | ES2061008T3 (cs) |
| FI (1) | FI98077C (cs) |
| HR (1) | HRP930456A2 (cs) |
| IN (1) | IN174833B (cs) |
| LT (1) | LT3392B (cs) |
| LV (1) | LV10514B (cs) |
| NO (1) | NO178079C (cs) |
| PL (1) | PL169421B1 (cs) |
| RU (1) | RU2040616C1 (cs) |
| SI (1) | SI9110206B (cs) |
| SK (1) | SK278326B6 (cs) |
| YU (1) | YU47388B (cs) |
| ZA (1) | ZA91840B (cs) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2053035C (en) * | 1990-10-12 | 1997-09-30 | Repap Enterprises Inc. | Chlorine-free wood pulps and process of making |
| US5211809A (en) * | 1991-05-21 | 1993-05-18 | Air Products And Chemicals, Inc,. | Dye removal in oxygen color stripping of secondary fibers |
| BE1006056A3 (fr) * | 1992-07-06 | 1994-05-03 | Solvay Interox | Procede pour le blanchiment d'une pate a papier chimique. |
| SE500113C2 (sv) * | 1992-07-09 | 1994-04-18 | Kamyr Ab | Sätt vid blekning av massa för omhändertagande av utlösta metaller |
| US5374333A (en) * | 1992-07-30 | 1994-12-20 | Kamyr, Inc. | Method for minimizing pulp mill effluents |
| FR2695947B1 (fr) * | 1992-09-18 | 1994-10-21 | Saint Gobain Papier Bois Gie C | Procédé de blanchiment de pâtes cellulosiques chimiques. |
| WO1994010377A1 (en) * | 1992-10-23 | 1994-05-11 | Macmillan Bloedel Limited | Improved ozone bleaching |
| SE500335C2 (sv) * | 1992-10-26 | 1994-06-06 | Sca Wifsta Oestrand Ab | Blekning av sulfatmassa med peroxid-ozon-peroxid |
| US6210527B1 (en) | 1994-03-14 | 2001-04-03 | The Boc Group, Inc. | Pulp bleaching method wherein an ozone bleaching waste stream is scrubbed to form an oxygen containing stream |
| SE504424C2 (sv) * | 1994-11-04 | 1997-02-10 | Kvaerner Pulping Tech | Sätt att fälla ut övergångsmetaller och alkaliska jordartsmetaller ur blekeriavlutar genom att tillsätta alkalisk vätska |
| SE516030C2 (sv) * | 1994-11-14 | 2001-11-12 | Aga Ab | Regenerering av en gasblandning från ett ozonbleksteg |
| US5656130A (en) * | 1995-04-28 | 1997-08-12 | Union Camp Holding, Inc. | Ambient temperature pulp bleaching with peroxyacid salts |
| BR9611836A (pt) * | 1995-12-07 | 1999-03-09 | Beloit Technologies Inc | Deslignificação de oxigênio de pasta fluida de poupa de consistência média |
| AT402827B (de) * | 1995-12-22 | 1997-09-25 | Chemiefaser Lenzing Ag | Celluloseformkörper und verfahren zu seiner herstellung |
| EP1728918A3 (de) * | 2005-05-12 | 2006-12-13 | Voith Patent GmbH | Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension |
| US9339058B2 (en) | 2012-04-19 | 2016-05-17 | R. J. Reynolds Tobacco Company | Method for producing microcrystalline cellulose from tobacco and related tobacco product |
| SE538064C2 (sv) * | 2014-06-17 | 2016-02-23 | Valmet Oy | Metod för att producera dissolving massa från lignocellulosahaltiga material |
| FI127444B (en) * | 2015-05-27 | 2018-06-15 | Kemira Oyj | A method for reducing the viscosity of a pulp in the manufacture of soluble cellulose |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA966604A (en) * | 1970-12-21 | 1975-04-29 | Scott Paper Company | Kraft pulp bleaching and recovery process |
| US4196043A (en) * | 1970-12-21 | 1980-04-01 | Scott Paper Company | Kraft pulp bleaching and recovery process |
| JPS5430902A (en) | 1977-06-27 | 1979-03-07 | Seisan Kaihatsu Kagaku Kenkyus | Industrial multistage pulp bleaching method |
| US4216054A (en) * | 1977-09-26 | 1980-08-05 | Weyerhaeuser Company | Low-consistency ozone delignification |
| US4372812A (en) * | 1978-04-07 | 1983-02-08 | International Paper Company | Chlorine free process for bleaching lignocellulosic pulp |
| US4283251A (en) * | 1980-01-24 | 1981-08-11 | Scott Paper Company | Ozone effluent bleaching |
| US4619733A (en) * | 1983-11-30 | 1986-10-28 | Kooi Boon Lam | Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor |
| AT384837B (de) * | 1985-06-27 | 1988-01-11 | Steyrermuehl Papier | Verfahren und anordnung zur delignifizierung von zellstoff mit sauerstoff |
-
1990
- 1990-02-07 AT AT0026190A patent/AT395028B/de not_active IP Right Cessation
- 1990-12-20 AT AT90890348T patent/ATE112338T1/de not_active IP Right Cessation
- 1990-12-20 DK DK90890348.7T patent/DK0441113T3/da not_active Application Discontinuation
- 1990-12-20 ES ES90890348T patent/ES2061008T3/es not_active Expired - Lifetime
- 1990-12-20 EP EP90890348A patent/EP0441113B1/de not_active Expired - Lifetime
- 1990-12-20 DE DE59007341T patent/DE59007341D1/de not_active Expired - Fee Related
-
1991
- 1991-01-28 IN IN85CA1991D patent/IN174833B/en unknown
- 1991-02-05 ZA ZA91840A patent/ZA91840B/xx unknown
- 1991-02-05 CA CA002035698A patent/CA2035698C/en not_active Expired - Fee Related
- 1991-02-06 RU SU914894510A patent/RU2040616C1/ru active
- 1991-02-06 SK SK280-91A patent/SK278326B6/sk unknown
- 1991-02-06 PL PL91288978A patent/PL169421B1/pl unknown
- 1991-02-06 CZ CS91280A patent/CZ280077B6/cs unknown
- 1991-02-06 SI SI9110206A patent/SI9110206B/sl unknown
- 1991-02-06 NO NO910455A patent/NO178079C/no unknown
- 1991-02-06 YU YU20691A patent/YU47388B/sh unknown
- 1991-02-07 BR BR919100516A patent/BR9100516A/pt not_active Application Discontinuation
- 1991-02-07 US US07/652,027 patent/US5145557A/en not_active Expired - Lifetime
- 1991-02-07 FI FI910601A patent/FI98077C/fi active IP Right Grant
- 1991-02-07 JP JP3016575A patent/JPH04300380A/ja active Pending
-
1993
- 1993-01-12 LV LVP-93-21A patent/LV10514B/lv unknown
- 1993-03-23 HR HR930456A patent/HRP930456A2/hr not_active Application Discontinuation
- 1993-07-02 LT LTIP753A patent/LT3392B/lt unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| HRP930456A2 (en) | Process for the chlorine-free bleaching of fibre dissolving pulp | |
| US4459174A (en) | Process for the delignification and bleaching of chemical and semi-chemical cellulosic pulps | |
| US4283251A (en) | Ozone effluent bleaching | |
| FI67242B (fi) | Saett att avlaegsna lignin fraon oblekt kemisk pappersmassa | |
| JPS61138793A (ja) | 強化酸化抽出法 | |
| EP0480469A2 (en) | Chlorine-free wood pulps and process of making | |
| NO155499B (no) | Fremgangsmaate til bleking av cellulose ved hjelp av organisk persyre. | |
| NO300929B1 (no) | Fremgangsmåte for bleking av lignocellulosematerialer | |
| NO159541B (no) | Fremgangsmaate til aa utfoere alkaliestraksjon av cellulosemasse. | |
| US5770010A (en) | Pulping process employing nascent oxygen | |
| EP0902120A1 (en) | Process for bleaching a paper pulp with ozone and chlorine dioxide | |
| CA2067844A1 (en) | Process for bleaching cellulosic material and plant for carrying out the process | |
| US2001268A (en) | Pulp treating process | |
| PL171990B1 (pl) | Sposób selektywnej delignifikacji chemicznej masy papierniczej PL | |
| Abad et al. | Totally chlorine free bleaching of Eucalyptus globulus dissolving pulps delignified with peroxyformic acid and formic acid | |
| KR100194405B1 (ko) | 목재펄프의 무염소 표백방법 | |
| KR930010534B1 (ko) | 펄프의 잉크 제거 및 표백 방법 | |
| JPH04316690A (ja) | リグノセルロース材料の漂白方法 | |
| AU605913B2 (en) | A method in the activation of lignocellulosic material with a gas containing nitrogen dioxide | |
| WO2000047813A1 (en) | Oxygen delignification of pulp in the presence of carbonates as alkali | |
| WO1991000386A1 (en) | A method for bleaching kraft pulp with a mixture of oxygen and peroxide | |
| CA2032315C (en) | Process for bleaching of chemical cellulose pulp | |
| JPH04272289A (ja) | セルロースパルプの酸素漂白法 | |
| JP2000273782A (ja) | 漂白パルプの製造方法 | |
| US331323A (en) | Baoul piebee pictet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A1OB | Publication of a patent application | ||
| AIPI | Request for the grant of a patent on the basis of a substantive examination of a patent application | ||
| ODBC | Application rejected |