ES2000385A6 - Un procedimiento para deslignificar materiales celulosicos - Google Patents

Un procedimiento para deslignificar materiales celulosicos

Info

Publication number
ES2000385A6
ES2000385A6 ES8600840A ES8600840A ES2000385A6 ES 2000385 A6 ES2000385 A6 ES 2000385A6 ES 8600840 A ES8600840 A ES 8600840A ES 8600840 A ES8600840 A ES 8600840A ES 2000385 A6 ES2000385 A6 ES 2000385A6
Authority
ES
Spain
Prior art keywords
cellulosic materials
delignification
treated
conditions
cellulosic
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
ES8600840A
Other languages
English (en)
Inventor
Josef S Gratzl
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.)
Solvay Chimie SA
Original Assignee
Interox 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 Interox SA filed Critical Interox SA
Publication of ES2000385A6 publication Critical patent/ES2000385A6/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

  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Materials For Medical Uses (AREA)
  • Dental Preparations (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • External Artificial Organs (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

SE DESCRIBE UN PROCEDIMIENTO DE DESLIGNIFICACION DE MATERIAS CELULOSICAS QUE COMPRENDE: UNA PRIMERA ETAPA DE TRATAMIENTO DE LAS MATERIAS CELULOSICAS CON UN ACIDO; UNA SEGUNDA ETAPA DE TRATAMIENTO CON PEROXIDO DE HIDROGENO EN MEDIO ALCALINO; Y UNA TERCERA ETAPA DE COCCION EN PRESENCIA DE AL MENOS UN REACTIVO QUIMICO SELECCIONADO ENTRE LOS HIDROXIDOS DE METALES ALCALINOS O ALCALINO TERREOS. EL PROCEDIMIENTO DESCRITO SE APLICA AL TRATAMIENTO DE FRAGMENTOS DE MADERA.
ES8600840A 1985-08-05 1986-08-04 Un procedimiento para deslignificar materiales celulosicos Expired ES2000385A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76272685A 1985-08-05 1985-08-05

Publications (1)

Publication Number Publication Date
ES2000385A6 true ES2000385A6 (es) 1988-02-16

Family

ID=25065883

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8600840A Expired ES2000385A6 (es) 1985-08-05 1986-08-04 Un procedimiento para deslignificar materiales celulosicos

Country Status (13)

Country Link
EP (1) EP0212329B1 (es)
JP (1) JPH0742670B2 (es)
AT (1) ATE57400T1 (es)
AU (1) AU591509B2 (es)
BR (1) BR8603672A (es)
CA (1) CA1311093C (es)
DE (1) DE3674859D1 (es)
ES (1) ES2000385A6 (es)
FI (1) FI85726C (es)
NO (1) NO168490C (es)
NZ (1) NZ217002A (es)
PT (1) PT83118B (es)
YU (1) YU45351B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN167959B (es) * 1985-08-05 1991-01-12 Interox

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1474276A (fr) * 1965-03-19 1967-03-24 Electro Chimie Soc D Perfectionnements à la fabrication de pâte à papier
SE373896B (es) * 1972-07-05 1975-02-17 Mo Och Domsjoe Ab
SE380298B (sv) * 1974-03-14 1975-11-03 Mo Forfarande for delignifiering genom syrgas-alkalibehandling av lignocelluosahaltigt material
SE7612248L (sv) * 1976-11-03 1978-05-04 Mo Och Domsjoe Ab Kokning av lignocellulosahaltiga material
SU821614A1 (ru) * 1979-06-19 1981-04-15 Белорусский Технологический Институт Им.C.M.Кирова Способ получени целлюлозного полу-фАбРиКАТА
IN167959B (es) * 1985-08-05 1991-01-12 Interox

Also Published As

Publication number Publication date
NO168490B (no) 1991-11-18
NO863133D0 (no) 1986-08-04
JPH0742670B2 (ja) 1995-05-10
EP0212329B1 (fr) 1990-10-10
FI863194A (fi) 1987-02-06
JPS6297992A (ja) 1987-05-07
FI85726C (fi) 1992-05-25
AU591509B2 (en) 1989-12-07
PT83118A (fr) 1986-09-01
BR8603672A (pt) 1987-03-10
YU45351B (en) 1992-05-28
FI85726B (fi) 1992-02-14
CA1311093C (fr) 1992-12-08
NO168490C (no) 1992-02-26
NO863133L (no) 1987-02-06
FI863194A0 (fi) 1986-08-05
PT83118B (pt) 1988-10-14
NZ217002A (en) 1988-11-29
EP0212329A1 (fr) 1987-03-04
YU136986A (en) 1987-10-31
ATE57400T1 (de) 1990-10-15
DE3674859D1 (de) 1990-11-15
AU6054486A (en) 1987-02-12

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010806