ES472184A1 - Procedimiento de fabricacion de pastas papeleras quimicas - Google Patents

Procedimiento de fabricacion de pastas papeleras quimicas

Info

Publication number
ES472184A1
ES472184A1 ES472184A ES472184A ES472184A1 ES 472184 A1 ES472184 A1 ES 472184A1 ES 472184 A ES472184 A ES 472184A ES 472184 A ES472184 A ES 472184A ES 472184 A1 ES472184 A1 ES 472184A1
Authority
ES
Spain
Prior art keywords
manufacturing procedure
paper manufacturing
chemical paper
sodium hydroxide
oxygen
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
ES472184A
Other languages
English (en)
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
Priority claimed from FR7724131A external-priority patent/FR2398839A1/fr
Priority claimed from FR7820715A external-priority patent/FR2430475A2/fr
Application filed by Produits Chimiques Ugine Kuhlmann, Ugine Kuhlmann SA filed Critical Produits Chimiques Ugine Kuhlmann
Publication of ES472184A1 publication Critical patent/ES472184A1/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)
  • Materials For Medical Uses (AREA)

Abstract

Procedimiento de fabricación de pastas papeleras químicas mediante designificación de los materiales lignocelulósicos del tipo en el cual se realiza sucesivamente: - una primera fase de cocción en presencia de hidróxido de sodio, - un desfibrado intermedio, - una segunda fase cocción caracterizado porque la segunda fase de cocción se realiza en presencia de una solución alcalina de peróxido que contiene un agente estabilizantes del peróxido.
ES472184A 1977-07-29 1978-07-28 Procedimiento de fabricacion de pastas papeleras quimicas Expired ES472184A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7724131A FR2398839A1 (fr) 1977-07-29 1977-07-29 Procede de fabrication de pates papetieres chimiques
FR7820715A FR2430475A2 (fr) 1978-07-05 1978-07-05 Procede de fabrication de pates papetieres chimiques

Publications (1)

Publication Number Publication Date
ES472184A1 true ES472184A1 (es) 1979-02-16

Family

ID=26220161

Family Applications (1)

Application Number Title Priority Date Filing Date
ES472184A Expired ES472184A1 (es) 1977-07-29 1978-07-28 Procedimiento de fabricacion de pastas papeleras quimicas

Country Status (10)

Country Link
AT (1) AT371860B (es)
BE (1) BE869153A (es)
CA (1) CA1128260A (es)
CH (1) CH634362A5 (es)
DE (1) DE2833115C3 (es)
ES (1) ES472184A1 (es)
FI (1) FI70440C (es)
IT (1) IT1160561B (es)
NO (1) NO151975C (es)
SE (1) SE439172B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493365A1 (fr) * 1980-11-06 1982-05-07 Tech Ind Papiers Carton Centre Procede pour la fabrication de pate papetiere chimique et pate ainsi obtenue
IT202000019033A1 (it) * 2020-08-03 2022-02-03 Davide Bertinazzo Metodo per ottenere un precursore di un materiale ibrido legno-inorganico e metodo per ottenere un materiale ibrido legno-inorganico

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA895756A (en) * 1970-04-03 1972-03-21 Macmillan Bloedel Limited Two-stage soda-oxygen pulping
DE2327900C3 (de) * 1973-06-01 1985-02-07 Degussa Ag, 6000 Frankfurt Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz
CA1073161A (en) * 1975-09-05 1980-03-11 Canadian Industries Limited Delignification process

Also Published As

Publication number Publication date
DE2833115C3 (de) 1986-04-17
SE7808202L (sv) 1979-01-30
NO151975B (no) 1985-04-01
BE869153A (fr) 1979-01-22
IT7868812A0 (it) 1978-07-28
SE439172B (sv) 1985-06-03
ATA546578A (de) 1982-12-15
IT1160561B (it) 1987-03-11
DE2833115B2 (de) 1980-07-03
NO782573L (no) 1979-01-30
NO151975C (no) 1985-07-10
AT371860B (de) 1983-08-10
CA1128260A (fr) 1982-07-27
FI782342A7 (fi) 1979-01-30
FI70440B (fi) 1986-03-27
DE2833115A1 (de) 1979-02-08
CH634362A5 (en) 1983-01-31
FI70440C (fi) 1986-09-19

Similar Documents

Publication Publication Date Title
SE7801868L (sv) Blekning av lignocellulosamaterial med peroxidhaltiga blekmedel
DE3061114D1 (en) Process for bleaching cellulose pulps by means of organic peracids
SE8504236D0 (sv) Forbettrad oxidativ extraktion
ES451244A1 (es) Procedimiento para la deslignificacion de material celulosi-co.
SE7706247L (sv) Massakokningsforfarande
DK1322814T3 (da) Fremgangsmåde til blegning af papirmasser
DE3163280D1 (en) Process for the regeneration of waste paper
JPS5725490A (en) Bleaching of cellulose pulp by oxygen gas
ES8400520A1 (es) Procedimiento para el tratamiento de pastas papeleras quimicas.
SE8005584L (sv) Forfarande och press for framstellning av ihaliga alster genom djupdragning
GB2005743A (en) A process for the production of softwood pulp for chemical further processing and for special papers
KR830007942A (ko) 과산화수소 함유의 처리용액체를 이용하는 단일과정에 의한 직포류의 풀빼기 및 표백 처리법
ATE80677T1 (de) Bleichmittelzusatz.
FI824295A0 (fi) Foerfarande foer framstaellning av halvblekta cellulosor
ES467609A1 (es) Procedimiento para mejorar el color de la remolacha troceada
GB1100709A (en) Two-stage purification of fibrous cellulose material
JPS5721589A (en) Bleaching of cellulose pulp by oxygen gas
SE7407273L (es)
SE9203218L (sv) Förfarande för framställning av väteperoxid
ES456753A1 (es) Un procedimiento para la desinfeccion de papeles viejos so- metidos a una desintegracion en agua.
SE7603352L (sv) Forfarande for delignifiering av ett cellulosahaltigt material med oxiderande gas i alkalisk miljo
FR2424267A1 (fr) Procede d'obtention d'ethers hydrosolubles d'hydroxyflavones
SE7612248L (sv) Kokning av lignocellulosahaltiga material
GB1425901A (en) Pulping process
GB791352A (en) A method of bleaching wood pulps

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19980202