ES491799A0 - Procedimiento para la deslignificacion y el blanqueo de pas-tas celulosicas quimicas y semi-quimicas - Google Patents
Procedimiento para la deslignificacion y el blanqueo de pas-tas celulosicas quimicas y semi-quimicasInfo
- Publication number
- ES491799A0 ES491799A0 ES491799A ES491799A ES491799A0 ES 491799 A0 ES491799 A0 ES 491799A0 ES 491799 A ES491799 A ES 491799A ES 491799 A ES491799 A ES 491799A ES 491799 A0 ES491799 A0 ES 491799A0
- Authority
- ES
- Spain
- Prior art keywords
- chemical
- bleaching
- semi
- pasts
- lignification
- Prior art date
- 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
Links
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Detergent Compositions (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7913554A FR2457339A1 (fr) | 1979-05-25 | 1979-05-25 | Procede pour la delignification et le blanchiment de pates cellulosiques chimiques et semi-chimiques |
Publications (2)
Publication Number | Publication Date |
---|---|
ES491799A0 true ES491799A0 (es) | 1980-12-16 |
ES8102237A1 ES8102237A1 (es) | 1980-12-16 |
Family
ID=9225939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES491799A Expired ES8102237A1 (es) | 1979-05-25 | 1980-05-23 | Procedimiento para la deslignificacion y el blanqueo de pas-tas celulosicas quimicas y semi-quimicas |
Country Status (6)
Country | Link |
---|---|
US (1) | US4459174A (es) |
EP (1) | EP0019963B1 (es) |
AT (1) | ATE2018T1 (es) |
DE (1) | DE3061330D1 (es) |
ES (1) | ES8102237A1 (es) |
FR (1) | FR2457339A1 (es) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2566015B1 (fr) * | 1984-06-15 | 1986-08-29 | Centre Tech Ind Papier | Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene |
DE3802401A1 (de) * | 1988-01-28 | 1989-08-03 | Degussa | Verfahren zur herstellung von halbgebleichtem kraftzellstoff |
US5023097A (en) * | 1988-04-05 | 1991-06-11 | Xylan, Inc. | Delignification of non-woody biomass |
US4842877A (en) * | 1988-04-05 | 1989-06-27 | Xylan, Inc. | Delignification of non-woody biomass |
US5188708A (en) * | 1989-02-15 | 1993-02-23 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification followed by ozone relignification |
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 |
US5525195A (en) * | 1989-02-15 | 1996-06-11 | Union Camp Patent Holding, Inc. | Process for high consistency delignification using a low consistency alkali pretreatment |
US5409570A (en) * | 1989-02-15 | 1995-04-25 | Union Camp Patent Holding, Inc. | Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone |
US5217574A (en) * | 1989-02-15 | 1993-06-08 | Union Camp Patent Holdings Inc. | Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp |
US5211811A (en) * | 1989-02-15 | 1993-05-18 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification |
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 |
US5011572A (en) * | 1989-05-19 | 1991-04-30 | Fmc Corporation | Two stage process for the oxygen delignification of lignocellulosic fibers with peroxide reinforcement in the first stage |
DK0402335T4 (da) * | 1989-06-06 | 2001-06-25 | Eka Chemicals Ab | Fremgangsmåde til blegning af lignocelluloseholdigpulp |
DE3923728A1 (de) * | 1989-07-18 | 1991-01-24 | Degussa | Verfahren zur stabilisierung der viskositaet von zellstoffen |
SE9001481L (sv) * | 1990-04-23 | 1991-10-24 | Eka Nobel Ab | Reduktion av halogenorganiska foereningar i blekeriavlopp |
SE466061B (sv) * | 1990-04-23 | 1991-12-09 | Eka Nobel Ab | Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne |
US5441603A (en) * | 1990-05-17 | 1995-08-15 | Union Camp Patent Holding, Inc. | Method for chelation of pulp prior to ozone delignification |
US5164044A (en) * | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
US5164043A (en) * | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
ES2049165B1 (es) * | 1990-08-10 | 1994-10-16 | Whites Martins Gases Ind S A | Procedimiento para pre-blanquear o deslignificar pasta kraft empleando oxigeno. |
BE1004674A3 (fr) * | 1991-03-11 | 1993-01-12 | Interox Internat Sa | Procede pour le blanchiment d'une pate a papier chimique et application de ce procede au blanchiment d'une pate kraft. |
SE468355B (sv) * | 1991-04-30 | 1992-12-21 | Eka Nobel Ab | Blekning av kemisk massa genom behandling med komplexbildare och ozon |
US5554259A (en) * | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
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 |
US5656130A (en) * | 1995-04-28 | 1997-08-12 | Union Camp Holding, Inc. | Ambient temperature pulp bleaching with peroxyacid salts |
US5705216A (en) * | 1995-08-11 | 1998-01-06 | Tyson; George J. | Production of hydrophobic fibers |
BE1011129A4 (fr) * | 1997-04-25 | 1999-05-04 | Solvay Interox | Procede continu de delignification et/ou de blanchiment de pate a papier chimique vierge ou recyclee. |
EP1409130B1 (en) * | 2001-07-17 | 2004-11-10 | Zhi-Wei Liang | Oxidative thermochemical drying process for changing hydrophilic/hydrophobic characteristics of natural organic substances |
ES2300713T3 (es) * | 2004-06-14 | 2008-06-16 | Warwick International Group Limited | Activador para el blanqueado de pasta de papel. |
US8138106B2 (en) | 2005-09-30 | 2012-03-20 | Rayonier Trs Holdings Inc. | Cellulosic fibers with odor control characteristics |
EP2213678B1 (en) * | 2007-10-17 | 2013-08-21 | Nippon Steel & Sumikin Chemical Co., Ltd. | Production methods for solubilized lignin, saccharide raw material and monosaccharide raw material, and solubilized lignin |
FR2951096B1 (fr) | 2009-10-09 | 2013-03-15 | Total Sa | Procede d'oxydation de composes organiques |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI45574C (fi) * | 1970-05-11 | 1972-07-10 | Kymin Oy Kymmene Ab | Menetelmä selluloosapitoisten aineiden valkaisemiseksi. |
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 |
US3719552A (en) * | 1971-06-18 | 1973-03-06 | American Cyanamid Co | Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide |
US4372812A (en) * | 1978-04-07 | 1983-02-08 | International Paper Company | Chlorine free process for bleaching lignocellulosic pulp |
-
1979
- 1979-05-25 FR FR7913554A patent/FR2457339A1/fr active Granted
-
1980
- 1980-05-14 DE DE8080200450T patent/DE3061330D1/de not_active Expired
- 1980-05-14 AT AT80200450T patent/ATE2018T1/de not_active IP Right Cessation
- 1980-05-14 EP EP80200450A patent/EP0019963B1/fr not_active Expired
- 1980-05-23 ES ES491799A patent/ES8102237A1/es not_active Expired
-
1982
- 1982-07-21 US US06/400,380 patent/US4459174A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES8102237A1 (es) | 1980-12-16 |
US4459174A (en) | 1984-07-10 |
EP0019963B1 (fr) | 1982-12-15 |
ATE2018T1 (de) | 1982-12-15 |
FR2457339A1 (fr) | 1980-12-19 |
EP0019963A1 (fr) | 1980-12-10 |
FR2457339B1 (es) | 1982-09-17 |
DE3061330D1 (en) | 1983-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20010301 |