CA2139246A1 - Procede de blanchiment de pate renfermant de la lignocellulose - Google Patents

Procede de blanchiment de pate renfermant de la lignocellulose

Info

Publication number
CA2139246A1
CA2139246A1 CA002139246A CA2139246A CA2139246A1 CA 2139246 A1 CA2139246 A1 CA 2139246A1 CA 002139246 A CA002139246 A CA 002139246A CA 2139246 A CA2139246 A CA 2139246A CA 2139246 A1 CA2139246 A1 CA 2139246A1
Authority
CA
Canada
Prior art keywords
pulp
hydrogen peroxide
magnesium
compound
chlorine
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002139246A
Other languages
English (en)
Inventor
Lennart Andersson
Jiri Basta
Jan Hook
Lillemor Holtinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nouryon Pulp and Performance Chemicals AB
Original Assignee
Eka Nobel AB
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
Priority claimed from SE9101301A external-priority patent/SE470065C/sv
Application filed by Eka Nobel AB filed Critical Eka Nobel AB
Publication of CA2139246A1 publication Critical patent/CA2139246A1/fr
Abandoned legal-status Critical Current

Links

Landscapes

  • Paper (AREA)
CA002139246A 1991-04-30 1992-04-27 Procede de blanchiment de pate renfermant de la lignocellulose Abandoned CA2139246A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9101301A SE470065C (sv) 1991-04-30 1991-04-30 Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
SE9101301-1 1991-04-30
CA002067296A CA2067296C (fr) 1991-04-30 1992-04-27 Procede de blanchiment de pate contenant de la lignocellulose

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002067296A Division CA2067296C (fr) 1991-04-30 1992-04-27 Procede de blanchiment de pate contenant de la lignocellulose

Publications (1)

Publication Number Publication Date
CA2139246A1 true CA2139246A1 (fr) 1992-10-31

Family

ID=25675106

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002139246A Abandoned CA2139246A1 (fr) 1991-04-30 1992-04-27 Procede de blanchiment de pate renfermant de la lignocellulose

Country Status (1)

Country Link
CA (1) CA2139246A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6776876B1 (en) 1994-10-13 2004-08-17 Andritz Oy Method of treating cellulosic pulp to remove hexenuronic acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6776876B1 (en) 1994-10-13 2004-08-17 Andritz Oy Method of treating cellulosic pulp to remove hexenuronic acid

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead