UY37578A - Método de blanqueo de una pasta de papel - Google Patents
Método de blanqueo de una pasta de papelInfo
- Publication number
- UY37578A UY37578A UY0001037578A UY37578A UY37578A UY 37578 A UY37578 A UY 37578A UY 0001037578 A UY0001037578 A UY 0001037578A UY 37578 A UY37578 A UY 37578A UY 37578 A UY37578 A UY 37578A
- Authority
- UY
- Uruguay
- Prior art keywords
- paper pulp
- whitening
- unbleached
- keep
- bleaching
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 230000002087 whitening effect Effects 0.000 title 1
- 229920001131 Pulp (paper) Polymers 0.000 abstract 5
- 238000004061 bleaching Methods 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 2
- 239000004155 Chlorine dioxide Substances 0.000 abstract 1
- 235000019398 chlorine dioxide Nutrition 0.000 abstract 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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
- D21C9/1042—Use of chelating agents
-
- 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
La presente invención se refiere un método de blanqueo de una pasta de papel no blanqueada o blanqueada previamente que comprende al menos las etapas sucesivas de preparación de una pasta de papel no blanqueada o previamente blanqueada que tiene un pH superior o igual a 8, poner en contacto la pasta de papel obtenida con dióxido de cloro, añadir al menos una base de Brønsted, añadir peróxido de hidrógeno, mantener la pasta de papel obtenida en una primera torre de blanqueo, y mantener la pasta de papel obtenida en una segunda torre de blanqueo.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1750512A FR3062138B1 (fr) | 2017-01-23 | 2017-01-23 | Procede de blanchiment d'une pate a papier |
Publications (1)
Publication Number | Publication Date |
---|---|
UY37578A true UY37578A (es) | 2018-08-31 |
Family
ID=58401871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UY0001037578A UY37578A (es) | 2017-01-23 | 2018-01-22 | Método de blanqueo de una pasta de papel |
Country Status (15)
Country | Link |
---|---|
US (1) | US11384480B2 (es) |
EP (1) | EP3571347B1 (es) |
JP (1) | JP2020514564A (es) |
KR (1) | KR102531578B1 (es) |
CN (1) | CN110177909A (es) |
AR (1) | AR110905A1 (es) |
BR (1) | BR112019014480B1 (es) |
CA (1) | CA3049171A1 (es) |
CL (1) | CL2019001865A1 (es) |
FR (1) | FR3062138B1 (es) |
PT (1) | PT3571347T (es) |
RU (1) | RU2747664C2 (es) |
UY (1) | UY37578A (es) |
WO (1) | WO2018134525A1 (es) |
ZA (1) | ZA201904595B (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114277599A (zh) * | 2021-12-17 | 2022-04-05 | 广西大学 | 一种低温中性二氧化氯漂白方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3884752A (en) * | 1973-09-17 | 1975-05-20 | Int Paper Co | Single vessel wood pulp bleaching with chlorine dioxide followed by sodium hypochlorite or alkaline extraction |
FR2589494B1 (fr) * | 1985-10-30 | 1988-07-29 | Atochem | Procede de blanchiment de pates papetieres chimiques |
EP0496782B1 (en) * | 1989-10-19 | 1996-03-20 | North Carolina State University | High efficiency chlorine dioxide pulp bleaching process |
US5268075A (en) | 1989-10-19 | 1993-12-07 | North Carolina State University | High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process |
EP0496827A1 (en) * | 1989-10-19 | 1992-08-05 | North Carolina State University | Chlorine dioxide pulp bleaching process using sequential chlorine addition |
SE9000340L (sv) * | 1990-01-31 | 1991-08-01 | Eka Nobel Ab | Foerfarande vid blekning av lignocellulosahaltigt material |
NZ237019A (en) * | 1990-02-19 | 1992-11-25 | Amcor Ltd | Bleaching paper pulp by initially treating with oxygen and/or hydrogen peroxide and subsequently treating with a bleaching agent without intervening washing steps |
JPH04126885A (ja) * | 1990-09-14 | 1992-04-27 | Akio Onda | 化学パルプの製造方法 |
SE502706E (sv) * | 1994-04-05 | 1999-09-27 | Mo Och Domsjoe Ab | Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg |
FR2747407B1 (fr) * | 1996-04-12 | 1998-05-07 | Atochem Elf Sa | Procede de delignification et de blanchiment de pates a papier chimiques |
CA2189724A1 (en) * | 1996-07-08 | 1998-01-09 | Suezone Chow | Method of pulping |
BR9711743A (pt) * | 1996-09-11 | 1999-08-24 | Solvay Interox | Processo de deslignifica-Æo e de branqueamento de pasta de papel qu¡mica |
DE102010001001A1 (de) * | 2010-01-19 | 2011-07-21 | Evonik Degussa GmbH, 45128 | Verfahren zur Delignifizierung und Bleiche von Zellstoff |
CN103382671B (zh) | 2013-07-29 | 2015-06-17 | 四川理工学院 | 一种高聚合度竹浆粕的清洁制浆技术 |
JP6194818B2 (ja) * | 2014-02-28 | 2017-09-13 | 王子ホールディングス株式会社 | ケミカルパルプの製造方法、及びそのパルプを含む紙または板紙 |
SE538752C2 (en) * | 2014-11-21 | 2016-11-08 | Innventia Ab | Process for the production of a treated pulp, treated pulp, and textile fibers produced from the treated pulp |
CN105200837A (zh) | 2015-09-24 | 2015-12-30 | 广西大学 | 一种碱预处理辅助竹浆ecf漂白减少aox生成的方法 |
-
2017
- 2017-01-23 FR FR1750512A patent/FR3062138B1/fr not_active Expired - Fee Related
-
2018
- 2018-01-18 US US16/475,887 patent/US11384480B2/en active Active
- 2018-01-18 CN CN201880006735.1A patent/CN110177909A/zh active Pending
- 2018-01-18 EP EP18703063.0A patent/EP3571347B1/fr active Active
- 2018-01-18 CA CA3049171A patent/CA3049171A1/en active Pending
- 2018-01-18 JP JP2019538189A patent/JP2020514564A/ja active Pending
- 2018-01-18 BR BR112019014480-3A patent/BR112019014480B1/pt active IP Right Grant
- 2018-01-18 WO PCT/FR2018/050120 patent/WO2018134525A1/fr active Application Filing
- 2018-01-18 PT PT187030630T patent/PT3571347T/pt unknown
- 2018-01-18 KR KR1020197020426A patent/KR102531578B1/ko active IP Right Grant
- 2018-01-18 RU RU2019121768A patent/RU2747664C2/ru active
- 2018-01-19 AR ARP180100125A patent/AR110905A1/es active IP Right Grant
- 2018-01-22 UY UY0001037578A patent/UY37578A/es not_active Application Discontinuation
-
2019
- 2019-07-04 CL CL2019001865A patent/CL2019001865A1/es unknown
- 2019-07-12 ZA ZA2019/04595A patent/ZA201904595B/en unknown
Also Published As
Publication number | Publication date |
---|---|
RU2019121768A (ru) | 2021-01-11 |
CA3049171A1 (en) | 2018-07-26 |
CN110177909A (zh) | 2019-08-27 |
FR3062138B1 (fr) | 2019-06-07 |
WO2018134525A1 (fr) | 2018-07-26 |
BR112019014480A2 (pt) | 2020-02-11 |
KR20190104340A (ko) | 2019-09-09 |
EP3571347B1 (fr) | 2020-10-28 |
RU2747664C2 (ru) | 2021-05-11 |
CL2019001865A1 (es) | 2019-11-22 |
BR112019014480B1 (pt) | 2023-02-23 |
US20190345672A1 (en) | 2019-11-14 |
RU2019121768A3 (es) | 2021-03-24 |
PT3571347T (pt) | 2020-12-11 |
JP2020514564A (ja) | 2020-05-21 |
ZA201904595B (en) | 2020-02-26 |
AR110905A1 (es) | 2019-05-15 |
FR3062138A1 (fr) | 2018-07-27 |
KR102531578B1 (ko) | 2023-05-12 |
EP3571347A1 (fr) | 2019-11-27 |
US11384480B2 (en) | 2022-07-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
109 | Application deemed to be withdrawn |
Effective date: 20240506 |