BRPI0600247A - processo para remoção de ácido urÈnico insaturado em polpa quìmica para produção de papel - Google Patents

processo para remoção de ácido urÈnico insaturado em polpa quìmica para produção de papel

Info

Publication number
BRPI0600247A
BRPI0600247A BRPI0600247-1A BRPI0600247A BRPI0600247A BR PI0600247 A BRPI0600247 A BR PI0600247A BR PI0600247 A BRPI0600247 A BR PI0600247A BR PI0600247 A BRPI0600247 A BR PI0600247A
Authority
BR
Brazil
Prior art keywords
unsaturated
chemical pulp
papermaking
removal process
acid removal
Prior art date
Application number
BRPI0600247-1A
Other languages
English (en)
Inventor
Hiroshi Ohi
Shigeki Yoshida
Yuko Aoki
Yasuyuki Kawabata
Tomoya Yokoyama
Tsutomu Ikeda
Original Assignee
Mitsubishi Gas Chemical Co
Univ Tsukuba
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 Mitsubishi Gas Chemical Co, Univ Tsukuba filed Critical Mitsubishi Gas Chemical Co
Publication of BRPI0600247A publication Critical patent/BRPI0600247A/pt

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/22—Proteins
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • 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

Abstract

"PROCESSO PARA REMOçãO DE áCIDO URÈNICO INSATURADO EM POLPA QUìMICA PARA PRODUçãO DE PAPEL". A presente invenção refere-se a um processo para remover ácido urónico insaturado, contido em polpa química para produção de papel, caracterizado por adição de glicuronidase. De acordo com a concretização preferida da presente invenção, em um processo de alvejamento ECF ou TCF, sem uso de cloro molecular, ácido urónico insaturado pode ser reduzido, enquanto controlando o custo do alvejamento, e uma propriedade de reversão de brilho da polpa pode ser aperfeiçoada.
BRPI0600247-1A 2005-02-08 2006-02-07 processo para remoção de ácido urÈnico insaturado em polpa quìmica para produção de papel BRPI0600247A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005032317A JP2006219767A (ja) 2005-02-08 2005-02-08 製紙用化学パルプ中の不飽和ウロン酸の除去方法

Publications (1)

Publication Number Publication Date
BRPI0600247A true BRPI0600247A (pt) 2006-10-03

Family

ID=36283941

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0600247-1A BRPI0600247A (pt) 2005-02-08 2006-02-07 processo para remoção de ácido urÈnico insaturado em polpa quìmica para produção de papel

Country Status (5)

Country Link
US (1) US20060177921A1 (pt)
EP (1) EP1688535A1 (pt)
JP (1) JP2006219767A (pt)
BR (1) BRPI0600247A (pt)
CA (1) CA2535519A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4750068B2 (ja) * 2007-04-16 2011-08-17 王子製紙株式会社 漂白パルプ中のヘキセンウロン酸含量の測定方法、漂白パルプの製造方法、および紙の製造方法
JP5733711B2 (ja) * 2008-09-17 2015-06-10 国立大学法人 筑波大学 ヘキセンウロン酸特異的遊離酵素およびこの酵素を産生する微生物
CN111979823A (zh) * 2020-08-07 2020-11-24 齐鲁工业大学 一种硫酸盐木浆短程序ecf漂白工艺x/d-z-p（x/z-d-p）

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8900119A (nl) * 1989-01-19 1990-08-16 Akzo Nv Werkwijze voor het afsplitsen van (delta)4-onverzadigd uronzuur in glycosaminoglycaan fragmenten.
US5837515A (en) * 1990-05-16 1998-11-17 Alko-Yhtiot Oy Enzyme preparations and methods for their production
AU7990391A (en) * 1990-06-08 1991-12-31 Valtion Teknillinen Tutkimuskeskus Beta -xylanase preparation, process for the preparation thereof and its use in pulp bleaching
NZ239085A (en) * 1990-07-24 1993-08-26 Gist Brocades Nv Cloning and expression of xylanase genes from fungal origin
FI904214A (fi) * 1990-08-27 1992-02-28 Valtion Teknillinen Hydrolyseringsfoerfarande foer hemicellulosa.
FI89613C (fi) * 1991-12-05 1993-10-25 Valtion Teknillinen Foerfarande foer enzymatisk behandling av cellulosamassor
JPH05247865A (ja) * 1992-03-06 1993-09-24 Jujo Paper Co Ltd 漂白パルプの製造方法
CA2129992A1 (en) * 1992-12-24 1994-07-07 Albert J. J. Van Ooyen Cloning and expression of xylanase b
FI95607C (fi) * 1994-06-03 1996-02-26 Valtion Teknillinen Menetelmä ja entsyymivalmiste selluloosamassojen käsittelemiseksi
US7816129B2 (en) * 1994-07-29 2010-10-19 Ab Enzymes Gmbh Production and secretion of proteins of bacterial origin in filamentous fungi
JPH10504913A (ja) * 1994-08-26 1998-05-12 アクゾ ノーベル ナムローゼ フェンノートシャップ 自立の可撓性導波体シートを用いて、光導波体をファイバーコンベクターにする方法
JP2000220087A (ja) * 1999-01-22 2000-08-08 Oji Paper Co Ltd 製紙用パルプの酵素処理方法
JP2000282384A (ja) * 1999-03-31 2000-10-10 Oji Paper Co Ltd 漂白パルプの製造方法
JP4556344B2 (ja) * 2001-05-11 2010-10-06 王子製紙株式会社 新規ヘキセンウロニダーゼ、それをコードする遺伝子、およびそれらの使用

Also Published As

Publication number Publication date
US20060177921A1 (en) 2006-08-10
CA2535519A1 (en) 2006-08-08
EP1688535A1 (en) 2006-08-09
JP2006219767A (ja) 2006-08-24

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 5A E 6A ANUIDADES.

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 2160 DE 29/05/2012.