ES2004389A6 - Un metodo mejorado de deslignificacion y blanqueo secuenciales de pasta de papel lignocelulosica - Google Patents

Un metodo mejorado de deslignificacion y blanqueo secuenciales de pasta de papel lignocelulosica

Info

Publication number
ES2004389A6
ES2004389A6 ES8700735A ES8700735A ES2004389A6 ES 2004389 A6 ES2004389 A6 ES 2004389A6 ES 8700735 A ES8700735 A ES 8700735A ES 8700735 A ES8700735 A ES 8700735A ES 2004389 A6 ES2004389 A6 ES 2004389A6
Authority
ES
Spain
Prior art keywords
oxygen
production
bleached pulp
alkali
alkali extractant
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.)
Expired
Application number
ES8700735A
Other languages
English (en)
Inventor
John Frederick Cirucci
Augustine Ivanh Dalton
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals 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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of ES2004389A6 publication Critical patent/ES2004389A6/es
Expired legal-status Critical Current

Links

Landscapes

  • Paper (AREA)

Abstract

UN METODO MEJORADO DE DESLIGNIFICACION Y BLOQUEO SECUENCIALES DE PASTA DE PAPEL LIGNOCELULOSICA, EN EL QUE LA EXTRACCION CON ALCALI Y OXIGENO DE PASTA DE PAPEL EN UNA SECUENCIA DE BLANQUEO DE MULTIPLES ETAPAS SE REALIZA EN AUSENCIA DE UN MEZCLADOR DINAMICO DE O2 PASTA DE PAPEL, OBTENIENDO ADEMAS UN BRILLO DE LA PASTA DESEADO Y/O UN CONSUMO REDUCIDO DE PRODUCTOS QUIMICOS A BASE DE CLORO, MEZCLANDO INTIMAMENTE OXIGENO CON LA PASTA ALCALINA EN UN LUGAR ANTERIOR, DENTRO, O EN LA ZONA DE DILUCION DE LA ETAPA DE BLANQUEO DE LA PASTA ALCALINA DE LA SECUENCIA, EN PRESENCIA DE UN CO-OXIDANTE. EL INVENTO ES ESPECIALMENTE UTIL PARA OBTENER PRODUCTOS DE PAPEL CELULOSICO BLANCO.
ES8700735A 1986-03-21 1987-03-16 Un metodo mejorado de deslignificacion y blanqueo secuenciales de pasta de papel lignocelulosica Expired ES2004389A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84234986A 1986-03-21 1986-03-21

Publications (1)

Publication Number Publication Date
ES2004389A6 true ES2004389A6 (es) 1989-01-01

Family

ID=25287119

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8700735A Expired ES2004389A6 (es) 1986-03-21 1987-03-16 Un metodo mejorado de deslignificacion y blanqueo secuenciales de pasta de papel lignocelulosica

Country Status (4)

Country Link
JP (1) JPS62268881A (es)
ES (1) ES2004389A6 (es)
FI (1) FI871161A (es)
ZA (1) ZA872029B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0300276L (sv) * 2003-01-31 2003-12-09 Kvaerner Pulping Tech Förfarande för blekning av cellulosamassa samt bleklinje härför

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5277202A (en) * 1977-01-08 1977-06-29 Jisuke Hayashi Process for refining pulp
FR2566015B1 (fr) * 1984-06-15 1986-08-29 Centre Tech Ind Papier Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene

Also Published As

Publication number Publication date
FI871161A0 (fi) 1987-03-17
FI871161A (fi) 1987-09-22
ZA872029B (en) 1988-11-30
JPS62268881A (ja) 1987-11-21

Similar Documents

Publication Publication Date Title
SE8504236D0 (sv) Forbettrad oxidativ extraktion
AU8806982A (en) Controlled addition of alkaline chemicals to an oxygen delignification reaction
FR2457339B1 (es)
AU7840787A (en) Improved process for the bleaching of cellulosic pulps using hydrogen peroxide
DE3561165D1 (en) Process for bleaching mechanical pulp with hydrogen peroxide
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
NO893714D0 (no) Fremgangsmaate for bleking av masse.
EP0395792A3 (en) Procedure for the bleaching of pulp
ES2050992T3 (es) Deslignificacion con oxigeno reforzada con peroxido de hidrogeno.
ES2004389A6 (es) Un metodo mejorado de deslignificacion y blanqueo secuenciales de pasta de papel lignocelulosica
ES420507A1 (es) Procedimiento para estabilizar un material de fibra con hi-dratos de carbono en un tratamiento oxidante alcalino.
NO893715L (no) Fremgangsmaate for bleking av masse.
EP0206560A3 (en) Alkaline-peroxide-oxygen treatment for unbleached and chlorinated chemical pulps
FI882769A (fi) Styrning av peroxidblekning av olika traemassor.
AU565124B2 (en) Hypochlorite treatment of chemical paper pulps
AU2202188A (en) Method of bleaching or delignification of cellulose pulp with oxygen
FI864411A0 (fi) Foerfarande foer blekning av kemiska pappersmassor.
MY106117A (en) Delignification of lignocellulose-containing fiber.
EP0303962A3 (en) Oxygen alkali extraction process for producing bleached pulp
AU576394B2 (en) Process for the preparation of chemical paper pulp for bleaching
SE8703541D0 (sv) Pappersmassakokning enligt sulfatmetoden i kombination med alkalisk oxygendelignifiering och atfoljande slutblekning