PT99243A - Processo para a preservacao das caracteristicas de resistencia macanica das pastas de papel quimicas - Google Patents

Processo para a preservacao das caracteristicas de resistencia macanica das pastas de papel quimicas

Info

Publication number
PT99243A
PT99243A PT99243A PT9924391A PT99243A PT 99243 A PT99243 A PT 99243A PT 99243 A PT99243 A PT 99243A PT 9924391 A PT9924391 A PT 9924391A PT 99243 A PT99243 A PT 99243A
Authority
PT
Portugal
Prior art keywords
pct
macanial
preservation
resistance
chemical paper
Prior art date
Application number
PT99243A
Other languages
English (en)
Other versions
PT99243B (pt
Inventor
Marc Hoyos
Marcel Robberechts
Paul Essemaeker
Original Assignee
Interox Int Sa
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 Interox Int Sa filed Critical Interox Int Sa
Publication of PT99243A publication Critical patent/PT99243A/pt
Publication of PT99243B publication Critical patent/PT99243B/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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • 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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Materials For Medical Uses (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
PT99243A 1990-10-17 1991-10-16 Processo para a preservacao das caracteristicas de resistencia macanica das pastas de papel quimicas PT99243B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9000985A BE1004630A3 (fr) 1990-10-17 1990-10-17 Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.

Publications (2)

Publication Number Publication Date
PT99243A true PT99243A (pt) 1992-08-31
PT99243B PT99243B (pt) 1999-04-30

Family

ID=3884976

Family Applications (1)

Application Number Title Priority Date Filing Date
PT99243A PT99243B (pt) 1990-10-17 1991-10-16 Processo para a preservacao das caracteristicas de resistencia macanica das pastas de papel quimicas

Country Status (13)

Country Link
US (1) US5534115A (pt)
EP (1) EP0553141B1 (pt)
AT (1) ATE112340T1 (pt)
AU (1) AU648115B2 (pt)
BE (1) BE1004630A3 (pt)
BR (1) BR9107000A (pt)
CA (1) CA2094268A1 (pt)
DE (1) DE69104374D1 (pt)
FI (1) FI931664L (pt)
NO (1) NO300901B1 (pt)
PT (1) PT99243B (pt)
WO (1) WO1992007139A1 (pt)
ZA (1) ZA918219B (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004630A3 (fr) * 1990-10-17 1992-12-22 Interox Internat Sa Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.
EP0652321B1 (en) * 1993-11-04 1998-01-21 Morton International, Inc. Chemical pulp bleaching
SE9402726L (sv) * 1994-08-16 1995-08-28 Kvaerner Pulping Tech Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg
USH1690H (en) * 1995-07-20 1997-11-04 Nye; Jeffrey Process for bleaching kraft pulp
SE516219C2 (sv) * 1995-10-26 2001-12-03 Kvaerner Pulping Tech Blekning av kemisk pappersmassa i ett sulfonerande steg och ett surt syredelignifieringssteg
ES2122907B1 (es) * 1996-08-22 1999-07-01 Valverde Alonso Angel Procedimiento ecologico de obtencion de celulosa.
US6325892B1 (en) * 1998-09-23 2001-12-04 University Of New Brunswick Method of delignifying sulphite pulp with oxygen and borohydride
US6428653B1 (en) 2000-12-04 2002-08-06 West Fraser Timber Co. Ltd. Method of bleaching with formamidine sulfinic acid using a reducing agent to eliminate residual peroxide
US20080087390A1 (en) * 2006-10-11 2008-04-17 Fort James Corporation Multi-step pulp bleaching
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
US8980051B2 (en) * 2009-04-24 2015-03-17 International Paper Company Sulfonation of pulp produced by alkali pulping process
BR102014027199B1 (pt) * 2014-07-14 2022-10-04 Nalco Company Método para aprimorar a fabricação de polpa de soda ou kraft

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005947B1 (de) * 1980-02-16 1981-01-29 Degussa Verfahren zur Bleiche von Zellstoffen mittels organischer Persaeure
CA1249402A (en) * 1984-12-21 1989-01-31 Pulp And Paper Research Institute Of Canada Multistage brightening of high yield and ultra high- yield wood pulps
SE8600615L (sv) * 1985-02-15 1986-08-16 Kamyr Ab Hog ljushet astadkommes genom blekning av mekanisk massa, sasom kemisk-mekanisk massa (cmp), kemisk-termisk-mekanisk massa (ctmp) och liknande
JPH0197291A (ja) * 1987-10-05 1989-04-14 Fmc Corp 機械パルプの漂白方法
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.
BE1004630A3 (fr) * 1990-10-17 1992-12-22 Interox Internat Sa Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.

Also Published As

Publication number Publication date
PT99243B (pt) 1999-04-30
AU648115B2 (en) 1994-04-14
NO931419D0 (no) 1993-04-16
EP0553141A1 (fr) 1993-08-04
BE1004630A3 (fr) 1992-12-22
WO1992007139A1 (fr) 1992-04-30
ATE112340T1 (de) 1994-10-15
ZA918219B (en) 1992-09-30
US5534115A (en) 1996-07-09
CA2094268A1 (fr) 1992-04-18
BR9107000A (pt) 1993-09-08
EP0553141B1 (fr) 1994-09-28
AU8637191A (en) 1992-05-20
NO931419L (no) 1993-04-16
FI931664A7 (fi) 1993-04-14
NO300901B1 (no) 1997-08-11
DE69104374D1 (de) 1994-11-03
FI931664A0 (fi) 1993-04-14
FI931664L (fi) 1993-04-14

Similar Documents

Publication Publication Date Title
BR9107000A (pt) Processo para a preservacao das caracteristicas de resistencia mecanica de uma polpa quimica de papel
FI844445A7 (fi) Kemitermomekaaninen kuidutusprosessi, jossa käytetään erillisiä alkali- ja sulfiittikäsittelyjä.
AU590401B2 (en) Wood preservatives
CA2099679A1 (en) Process for de-inking recycled paper pulp
DK80390D0 (pt)
PT97513A (pt) Processo para o branqueamento com peroxido de hidrogenio de pastas de papel de elevado rendimento
ES2126278T5 (es) Procedimiento de preparacion de pastas quimicas para papel, deslignificadas y blanqueadas.
PT97514A (pt) Processo para o branqueamento com peroxido de hidrogenio de pastas de papel de rendimento elevado
DE3375797D1 (en) Copper phthalocyanine dyes, their manufacture, their aqueous solutions and their use in the dyeing of paper
AU6879287A (en) Method for the preservation of wood
DE3582766D1 (de) Kupferphthalocyaninfarbstoffe, ihre herstellung, ihre waessrigen loesungen und ihre verwendung zum faerben von papier.
EP0306452A3 (de) Kationische Stilben-disazofarbstoffe
CA2137450A1 (en) Bleaching recycled pulp with ozone and hydrogen peroxide
IT8421564A0 (it) Procedimento per produrre esemplari di giornali, riviste e similari.
RU92009707A (ru) Способ получения водорастворимого красителя для древесины
KR880002992A (ko) 콜로이드상의 세제 조성물
KR830008507A (ko) 보리쌀(大麥) 가공방법
KR830009255A (ko) 가성소다를 사용한 철의 사산화 삼철에 의한 표현처리법
IT8322515V0 (it) Dispositivo per la stiratura particolarmente di camicie in una cabina di stiratura.
IT8124084A0 (it) Procedimento ed apparecchiatura per l'incollaggio fra bordi di fogli in particolare di legno, impiallacciatura o simile.
SE8903154D0 (sv) A process and apparatus for the sealing of paper sheets
KR900003682A (ko) 접착식 인화지
KR850008266A (ko) 건조균이(菌이) 및 그 건조방법
UA13131A (uk) Ліhія для виробhицтва іhдикаторhих смужок
KR830008848A (ko) 무늬목 판체의 제조방법

Legal Events

Date Code Title Description
BB1A Laying open of patent application

Effective date: 19920422

FG3A Patent granted, date of granting

Effective date: 19990107

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20000731