ES8304242A1 - Procedimiento mejorado para la preparacion de pastas papeleras quimicas. - Google Patents

Procedimiento mejorado para la preparacion de pastas papeleras quimicas.

Info

Publication number
ES8304242A1
ES8304242A1 ES506891A ES506891A ES8304242A1 ES 8304242 A1 ES8304242 A1 ES 8304242A1 ES 506891 A ES506891 A ES 506891A ES 506891 A ES506891 A ES 506891A ES 8304242 A1 ES8304242 A1 ES 8304242A1
Authority
ES
Spain
Prior art keywords
preparation
woods
shredded
pasta
chemical paper
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
ES506891A
Other languages
English (en)
Other versions
ES506891A0 (es
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.)
Produits Chimiques Ugine Kuhlmann
Pechiney SA
Original Assignee
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann SA
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 Produits Chimiques Ugine Kuhlmann, Ugine Kuhlmann SA filed Critical Produits Chimiques Ugine Kuhlmann
Publication of ES506891A0 publication Critical patent/ES506891A0/es
Publication of ES8304242A1 publication Critical patent/ES8304242A1/es
Expired legal-status Critical Current

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes

Landscapes

  • Paper (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

PROCEDIMIENTO PARA LA PREPARACION DE PASTAS PAPELERAS QUIMICAS. SE HACE COCER VIRUTAS DE MADERA EN UN LICOR ALCALINO QUE CONTIENE UN COMPUESTO AZUFRADO, PARANDOSE ESTA COCCION EN TEMPERATURA CUANDO LAS VIRUTAS PRESENTAN UN PORCENTAJE RESIDUAL DE LIGNINA CORRESPONDIENTE A UN INDICE KAPPA COMPRENDIDO ENTRE 45 Y 100 PARA LAS MADERAS RESINOSAS Y 30 Y 50 PARA LAS MADERAS FRONDOSAS. SE DESFIBRAN LAS VIRUTAS ASI TRATADAS, TERMINANDOSE LA COCCION DE DICHAS VIRUTAS DESFIBRADAS POR MEDIO DE UNA SOLUCION ALCALINA QUE CONTIENE DE 0,1 A 1,5% EN PESO DE PEROXIDO CON RELACION AL PESO SECO DEL MATERIAL DESFIBRADO.
ES506891A 1980-11-06 1981-11-05 Procedimiento mejorado para la preparacion de pastas papeleras quimicas. Expired ES8304242A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8024075A FR2493365A1 (fr) 1980-11-06 1980-11-06 Procede pour la fabrication de pate papetiere chimique et pate ainsi obtenue

Publications (2)

Publication Number Publication Date
ES506891A0 ES506891A0 (es) 1983-02-16
ES8304242A1 true ES8304242A1 (es) 1983-02-16

Family

ID=9247897

Family Applications (1)

Application Number Title Priority Date Filing Date
ES506891A Expired ES8304242A1 (es) 1980-11-06 1981-11-05 Procedimiento mejorado para la preparacion de pastas papeleras quimicas.

Country Status (14)

Country Link
JP (1) JPS57106790A (es)
AT (1) AT376716B (es)
BE (1) BE890812A (es)
BR (1) BR8107190A (es)
CA (1) CA1162008A (es)
CH (1) CH645146A5 (es)
DE (1) DE3143523A1 (es)
ES (1) ES8304242A1 (es)
FI (1) FI76129C (es)
FR (1) FR2493365A1 (es)
IN (1) IN156251B (es)
IT (1) IT1144850B (es)
NO (1) NO162776C (es)
SE (1) SE460855B (es)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5526239B2 (es) * 1972-12-14 1980-07-11
JPS51116202A (en) * 1975-04-02 1976-10-13 Sanyo Kokusaku Pulp Co Process for making pulp with high yield
BE869153A (fr) * 1977-07-29 1979-01-22 Ugine Kuhlmann Procede de fabrication de pates papetieres chimiques
FR2398839A1 (fr) * 1977-07-29 1979-02-23 Centre Tech Ind Papier Procede de fabrication de pates papetieres chimiques

Also Published As

Publication number Publication date
ATA469981A (de) 1984-05-15
BR8107190A (pt) 1982-07-20
IT1144850B (it) 1986-10-29
BE890812A (fr) 1982-04-21
IT8168398A0 (it) 1981-10-28
FI813489L (fi) 1982-05-07
NO162776C (no) 1990-02-14
AT376716B (de) 1984-12-27
NO162776B (no) 1989-11-06
CH645146A5 (fr) 1984-09-14
IN156251B (es) 1985-06-08
FI76129B (fi) 1988-05-31
FR2493365B1 (es) 1984-05-11
SE8106501L (sv) 1982-05-07
DE3143523A1 (de) 1982-07-08
FR2493365A1 (fr) 1982-05-07
FI76129C (fi) 1988-09-09
JPS57106790A (en) 1982-07-02
ES506891A0 (es) 1983-02-16
DE3143523C2 (es) 1990-01-18
SE460855B (sv) 1989-11-27
CA1162008A (fr) 1984-02-14
JPH0380915B2 (es) 1991-12-26
NO813747L (no) 1982-05-07

Similar Documents

Publication Publication Date Title
JPS56147876A (en) Water polyisocyanate-lignin adhesive
DE3468454D1 (en) Process for the treatment of cellulosic materials with oxidising agents
GB945957A (en) Continuous pulping process
SE8207356L (sv) Forfarande for behandling av kemiska pappersmassor
ES496152A0 (es) Un procedimiento para la regeneracion de papel usado sin de-sentintado
FI924342A0 (fi) Ett foerfarande daer man anvaender cellulas foer att foerbaettra pulpens avvattningsegenskaper.
ES528138A0 (es) Procedimiento para el blanqueo con peroxido de material conteniendo lignocelulosa
NO156327C (no) FremgangsmŸte for bearbeidelse og utnyttelse av energirikt materiale, som treverkfrie deler av tre ("grt materiale ").
GB1095279A (en) Bleaching pulps
SE7714131L (sv) Forfarande for uppslutning av lignocellulosamaterial
ES2017145A6 (es) Metodo de fabricar pasta de papel quimicoo-mecanica a partir de maderadura.
SE8106501L (sv) Forfarande for framstellning av kemisk pappersmassa samt salunda framstelld massa
DE2964319D1 (en) Process for improving the colour and for the deodorisation of sulphate pulp
GB1076124A (en) Method of making fibreboard and the like
FI840940A0 (fi) Vattenbehandling foer barkerier
GB1101249A (en) Fire-proofing of lignocellulosic material
ES524159A0 (es) Procedimiento para la obtencion de dihidro-1,3-dioxepinas 2-aciladas
FR2410085A1 (fr) Papier de couverture de resistance elevee pour la preparation de carton ondule
Ohtani et al. Extractives from the Temterate Wood Species in Pulping and Paper Making. II Difficulties in Cooking followed by Bleaching of Sugi Woods
ES8101159A1 (es) Un procedimiento para la produccion de pasta de papel.
ES191394A2 (es) PROCEDIMIENTO PARA TRATAR MADERAS DESTINADAS A LA OBTENCIoN DE TABLILLAS PARA CAJERiO Y EMBALAJE EN GENERAL
SE8306411L (sv) Sett att delignifiera cellulosahaltigt material medelst oxygen
FI811491A7 (fi) Puuhiokkeen valkaisulaite.
FI820261A7 (fi) Menetelmä niiden jäteliemien käsittelemiseksi, joita paperimassan val mistuksessa saadaan lignosellulignoselluloosamateriaaleja keittämällä sulfiitti- tai bisulfiittiprosbisulfiittiprosessia soveltaen.
SE7909839L (sv) Kontinuerligt kokningsforfarande for cellulosa och kokare med anordningar for forfarandets genomforande

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970519