BR6912545D0 - Processo para alvejamento de polpa de madeira - Google Patents

Processo para alvejamento de polpa de madeira

Info

Publication number
BR6912545D0
BR6912545D0 BR212545/69A BR21254569A BR6912545D0 BR 6912545 D0 BR6912545 D0 BR 6912545D0 BR 212545/69 A BR212545/69 A BR 212545/69A BR 21254569 A BR21254569 A BR 21254569A BR 6912545 D0 BR6912545 D0 BR 6912545D0
Authority
BR
Brazil
Prior art keywords
wood pulp
targeting process
targeting
pulp
wood
Prior art date
Application number
BR212545/69A
Other languages
English (en)
Inventor
D Andrews
S Mallett
Original Assignee
Canadian Ind
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 Canadian Ind filed Critical Canadian Ind
Publication of BR6912545D0 publication Critical patent/BR6912545D0/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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BR212545/69A 1968-09-20 1969-09-18 Processo para alvejamento de polpa de madeira BR6912545D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB44904/68A GB1262655A (en) 1968-09-20 1968-09-20 Bleaching of wood pulp

Publications (1)

Publication Number Publication Date
BR6912545D0 true BR6912545D0 (pt) 1973-05-03

Family

ID=10435190

Family Applications (1)

Application Number Title Priority Date Filing Date
BR212545/69A BR6912545D0 (pt) 1968-09-20 1969-09-18 Processo para alvejamento de polpa de madeira

Country Status (9)

Country Link
AT (1) AT292442B (pt)
BR (1) BR6912545D0 (pt)
DE (1) DE1947931C3 (pt)
FI (1) FI48859C (pt)
FR (1) FR2018562A1 (pt)
GB (1) GB1262655A (pt)
NO (1) NO131761C (pt)
SE (1) SE364322B (pt)
ZA (1) ZA696595B (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572431B1 (fr) * 1984-10-25 1987-12-04 Centre Tech Ind Papier Procede pour la preparation des pates papetieres chimiques en vue du blanchiment.
SE9900425L (sv) * 1999-02-09 2000-09-04 Skogsind Tekn Foskningsinst Förfarande för delignifiering av massa
KR20180061089A (ko) * 2015-09-30 2018-06-07 이메리즈 미네랄즈 리미티드 수성 펄프를 표백하는 방법 및 이러한 방법에 사용하기 위한 조성물

Also Published As

Publication number Publication date
NO131761C (pt) 1977-03-22
FR2018562A1 (pt) 1970-05-29
GB1262655A (en) 1972-02-02
FI48859B (pt) 1974-09-30
DE1947931B2 (de) 1974-11-14
SE364322B (pt) 1974-02-18
FI48859C (fi) 1975-01-10
NO131761B (pt) 1975-04-14
AT292442B (de) 1971-08-25
ZA696595B (en) 1971-04-28
DE1947931C3 (de) 1975-06-26
DE1947931A1 (de) 1970-03-26

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