BR8602790A - Processo de polpamento e processo para abrilhantar polpa - Google Patents

Processo de polpamento e processo para abrilhantar polpa

Info

Publication number
BR8602790A
BR8602790A BR8602790A BR8602790A BR8602790A BR 8602790 A BR8602790 A BR 8602790A BR 8602790 A BR8602790 A BR 8602790A BR 8602790 A BR8602790 A BR 8602790A BR 8602790 A BR8602790 A BR 8602790A
Authority
BR
Brazil
Prior art keywords
pulpping
brightening
pulp
brightening pulp
pulpping process
Prior art date
Application number
BR8602790A
Other languages
English (en)
Inventor
Norman Liebergott
Barbara Van Lierop
Original Assignee
Pulp Paper Res Inst
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 Pulp Paper Res Inst filed Critical Pulp Paper Res Inst
Publication of BR8602790A publication Critical patent/BR8602790A/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BR8602790A 1985-06-17 1986-06-16 Processo de polpamento e processo para abrilhantar polpa BR8602790A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000484110A CA1251903A (en) 1985-06-17 1985-06-17 Alkaline-peroxide-oxygen treatment of unbleached and chlorinated chemical pulps

Publications (1)

Publication Number Publication Date
BR8602790A true BR8602790A (pt) 1987-02-10

Family

ID=4130718

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8602790A BR8602790A (pt) 1985-06-17 1986-06-16 Processo de polpamento e processo para abrilhantar polpa

Country Status (6)

Country Link
EP (1) EP0206560A3 (pt)
JP (1) JPS6253497A (pt)
BR (1) BR8602790A (pt)
CA (1) CA1251903A (pt)
FI (1) FI862546A (pt)
NO (1) NO862381L (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2023916A1 (en) * 1989-11-11 1991-05-12 Augustine I Dalton Delignification of lignocellulose-containing fiber
US6231718B1 (en) 1992-02-28 2001-05-15 International Paper Company Two phase ozone and oxygen pulp treatment
SE9301960L (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
WO2012038966A1 (en) 2010-09-22 2012-03-29 Tyche Industries Ltd. Process for the preparation of donepezil intermediate
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
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
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1100709A (en) * 1965-06-25 1968-01-24 Pulp Paper Res Inst Two-stage purification of fibrous cellulose material
US3719552A (en) * 1971-06-18 1973-03-06 American Cyanamid Co Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide
DE3207157C1 (de) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von halbgebleichten Zellstoffen
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage

Also Published As

Publication number Publication date
FI862546A0 (fi) 1986-06-16
CA1251903A (en) 1989-04-04
NO862381D0 (no) 1986-06-16
JPS6253497A (ja) 1987-03-09
NO862381L (no) 1986-12-18
EP0206560A2 (en) 1986-12-30
FI862546A (fi) 1986-12-18
EP0206560A3 (en) 1988-07-20

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