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BRPI0507851A - método para reduzir o teor de materiais extrativos de polpas de alto rendimento e método para produzir polpas de alto rendimento branqueadas - Google Patents

método para reduzir o teor de materiais extrativos de polpas de alto rendimento e método para produzir polpas de alto rendimento branqueadas

Info

Publication number
BRPI0507851A
BRPI0507851A BRPI0507851-2A BRPI0507851A BRPI0507851A BR PI0507851 A BRPI0507851 A BR PI0507851A BR PI0507851 A BRPI0507851 A BR PI0507851A BR PI0507851 A BRPI0507851 A BR PI0507851A
Authority
BR
Brazil
Prior art keywords
pulp
high yield
reducing
content
extractive
Prior art date
Application number
BRPI0507851-2A
Other languages
English (en)
Inventor
Paren Aarto
Jokoro Jukka
Original Assignee
Kemira Oyj
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.)
Filing date
Publication date
Application filed by Kemira Oyj filed Critical Kemira Oyj
Publication of BRPI0507851A publication Critical patent/BRPI0507851A/pt

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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • 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
    • 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
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Steroid Compounds (AREA)

Abstract

MéTODO PARA REDUZIR O TEOR DE MATERIAIS EXTRATIVOS DE POLPAS DE ALTO RENDIMENTO E MéTODO PARA PRODUZIR POLPAS DE ALTO RENDIMENTO BRANQUEADAS. A invenção refere-se a um método para reduzir o teor de materiais extrativos de uma polpa de alto rendimento em um estágio de branqueamento com peróxido, o dito estágio incluindo o branqueamento com peróxido e uma subseqüente etapa de desidratação ou lavagem, o dito método compreendendo contatar a polpa no estágio de branqueamento com peróxido com um estabilizador orgânico e, durante ou após o branqueamento com peróxido, com um tensoativo e, após isso, submeter a polpa branqueada à dita etapa de desidratação ou lavagem, para remoção dos materiais extrativos juntamente com a fase aquosa. A invenção também se refere a um método para produção de polpa de alto rendimento branqueada.
BRPI0507851-2A 2004-02-24 2005-02-23 método para reduzir o teor de materiais extrativos de polpas de alto rendimento e método para produzir polpas de alto rendimento branqueadas BRPI0507851A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20040282A FI121385B (fi) 2004-02-24 2004-02-24 Menetelmä suursaantomassojen uuteainepitoisuuden vähentämiseksi ja menetelmä valkaistujen suursaantomassojen valmistamiseksi
PCT/FI2005/000112 WO2005080672A2 (en) 2004-02-24 2005-02-23 Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps

Publications (1)

Publication Number Publication Date
BRPI0507851A true BRPI0507851A (pt) 2007-07-10

Family

ID=31725758

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0507851-2A BRPI0507851A (pt) 2004-02-24 2005-02-23 método para reduzir o teor de materiais extrativos de polpas de alto rendimento e método para produzir polpas de alto rendimento branqueadas

Country Status (9)

Country Link
US (1) US20070272378A1 (pt)
EP (1) EP1718801B1 (pt)
CN (1) CN100591842C (pt)
AT (1) ATE376094T1 (pt)
BR (1) BRPI0507851A (pt)
CA (1) CA2553662C (pt)
DE (1) DE602005002933T2 (pt)
FI (1) FI121385B (pt)
WO (1) WO2005080672A2 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20070126A0 (fi) 2006-09-08 2007-02-13 Linde Ag Menetelmä hartsin poistamiseksi massasta ja hiilidioksidin tai (bi)karbonaatin käyttö tähän tarkoitukseen
WO2013178875A1 (en) * 2012-05-29 2013-12-05 Kemira Oyj A process for the treatment of fibre material and a new composition
TW201544652A (zh) * 2014-05-20 2015-12-01 Georgia Pacific Consumer Prod 非木材纖維之漂白及植物性雜質減量方法
TW201610265A (zh) 2014-05-20 2016-03-16 喬治亞太平洋消費者產品公司 非木材纖維之漂白及植物性雜質減量方法
TW201610261A (zh) 2014-05-20 2016-03-16 喬治亞太平洋消費者產品公司 非木材纖維之漂白及植物性雜質減量方法
US11193237B2 (en) 2017-09-11 2021-12-07 Solenis Technologies, L.P. Method for enhanced oxygen delignification of chemical wood pulps
WO2020093280A1 (en) * 2018-11-07 2020-05-14 Kemira Oyj A composition for use as peroxide stabilizer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU74434A1 (pt) * 1976-02-25 1977-09-12
DE3423452A1 (de) * 1984-06-26 1986-01-02 Sandoz-Patent-GmbH, 7850 Lörrach Stabilisierende mischung zur peroxidbleiche zellulosehaltiger materialien
US4963157A (en) * 1987-04-17 1990-10-16 Nippon Peroxide Co., Ltd. Method for bleaching cellulosic fiber material with hydrogen peroxide
US5234544A (en) * 1989-10-18 1993-08-10 Air Products And Chemicals, Inc. Cleaning and bleaching of secondary fiber
JP3191828B2 (ja) * 1992-05-27 2001-07-23 三菱瓦斯化学株式会社 印刷古紙の脱墨漂白方法
DE4344029A1 (de) * 1993-12-23 1995-06-29 Grillo Werke Ag Copolymerisate ungesättigter Carbonsäuren, Verfahren zur Herstellung und ihre Verwendung
CN1088484C (zh) * 1999-06-15 2002-07-31 杭州市化工研究所 造纸用树脂障碍控制剂
ATE412083T1 (de) * 2000-03-23 2008-11-15 Hercules Inc Kontrolle des absetzens von pech und klebenden verunreinigungen bei der stoff- und papierherstellung

Also Published As

Publication number Publication date
FI20040282L (fi) 2005-08-25
DE602005002933T2 (de) 2008-07-24
WO2005080672A3 (en) 2005-12-08
CA2553662C (en) 2012-10-23
EP1718801B1 (en) 2007-10-17
CA2553662A1 (en) 2005-09-01
CN1922359A (zh) 2007-02-28
US20070272378A1 (en) 2007-11-29
CN100591842C (zh) 2010-02-24
ATE376094T1 (de) 2007-11-15
FI121385B (fi) 2010-10-29
WO2005080672A2 (en) 2005-09-01
EP1718801A2 (en) 2006-11-08
FI20040282A0 (fi) 2004-02-24
DE602005002933D1 (de) 2007-11-29

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A E 6A ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2099 DE 29/03/2011.