CA2168290A1 - Methode et compositions a base de borate et de sel de magnesium pour ameliorer le blanchiment au peroxyde - Google Patents

Methode et compositions a base de borate et de sel de magnesium pour ameliorer le blanchiment au peroxyde

Info

Publication number
CA2168290A1
CA2168290A1 CA 2168290 CA2168290A CA2168290A1 CA 2168290 A1 CA2168290 A1 CA 2168290A1 CA 2168290 CA2168290 CA 2168290 CA 2168290 A CA2168290 A CA 2168290A CA 2168290 A1 CA2168290 A1 CA 2168290A1
Authority
CA
Canada
Prior art keywords
pulp
borate
peroxide
ble
additives
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
CA 2168290
Other languages
English (en)
Inventor
James H. Payton
Nicholas M. Canaris
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.)
Vinings Industries Inc
Original Assignee
Vinings Industries Inc
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 Vinings Industries Inc filed Critical Vinings Industries Inc
Publication of CA2168290A1 publication Critical patent/CA2168290A1/fr
Abandoned legal-status Critical Current

Links

Landscapes

  • Paper (AREA)
CA 2168290 1995-01-30 1996-01-29 Methode et compositions a base de borate et de sel de magnesium pour ameliorer le blanchiment au peroxyde Abandoned CA2168290A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38060895A 1995-01-30 1995-01-30
US08/380,608 1995-01-30

Publications (1)

Publication Number Publication Date
CA2168290A1 true CA2168290A1 (fr) 1996-07-31

Family

ID=23501832

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2168290 Abandoned CA2168290A1 (fr) 1995-01-30 1996-01-29 Methode et compositions a base de borate et de sel de magnesium pour ameliorer le blanchiment au peroxyde

Country Status (1)

Country Link
CA (1) CA2168290A1 (fr)

Similar Documents

Publication Publication Date Title
US4804440A (en) Multistage brightening of high yield and ultra high-yield wood pulps
US5246543A (en) Process for bleaching and delignification of lignocellulosic materials
US5091054A (en) Process for bleaching and delignification of lignocellulosic
CA2251664A1 (fr) Procede de blanchiment de fibres lignocellulosiques
JPS61138793A (ja) 強化酸化抽出法
JPS6320953B2 (fr)
US3867246A (en) Chlorine-free multiple step bleaching of cellulose
CA2168288C (fr) Compositions de blanchiment renfermant des sulfamates et des borates ou des gluconates; methode de preparation
US20040154761A1 (en) Methods to enhance pulp bleaching and delignification
JPH0796756B2 (ja) リグノセルロース含有材料の漂白方法
CA2219759A1 (fr) Blanchiment de pate a papier a la temperature ambiante au moyen de sels de peroxyacide
US7351764B2 (en) Methods to enhance brightness of pulp and optimize use of bleaching chemicals
EP0789798B1 (fr) Procede de delignification et de blanchiment de cellulose chimique
RU2439232C2 (ru) Способ отбеливания бумажной целлюлозной массы путем конечной обработки озоном при высокой температуре
EP0464110B1 (fr) Procede de blanchiment servant a la production de pulpes tres claires
CA2669032C (fr) Procede de blanchiment ameliore avec au moins une etape d'extraction
US10006168B2 (en) Method for treating chemical pulps by treatment with ozone in the presence of magnesium ions
USH1690H (en) Process for bleaching kraft pulp
US2527563A (en) Method of bleaching semichemical pulps
AU715023B2 (en) Neutral monoperoxysulfate bleaching
JPS63303189A (ja) ケミカル−サーモメカニカルパルプの製造方法
CA2168290A1 (fr) Methode et compositions a base de borate et de sel de magnesium pour ameliorer le blanchiment au peroxyde
US5645688A (en) Bleaching compositions and processes employing sulfamates and polyaminocarboxylic acids
US20030168190A1 (en) Method for controlling the delignfication and bleaching of a pulp suspension
EP1996762B1 (fr) Decoloration de pulpe par dioxyde de chlore presque neutre

Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued
FZDE Discontinued

Effective date: 20040129