YU45351B - Process for delignification of cellulose materials - Google Patents

Process for delignification of cellulose materials

Info

Publication number
YU45351B
YU45351B YU1369/86A YU136986A YU45351B YU 45351 B YU45351 B YU 45351B YU 1369/86 A YU1369/86 A YU 1369/86A YU 136986 A YU136986 A YU 136986A YU 45351 B YU45351 B YU 45351B
Authority
YU
Yugoslavia
Prior art keywords
cellulosic materials
delignification
cellulose materials
treated
conditions
Prior art date
Application number
YU1369/86A
Other versions
YU136986A (en
Inventor
J S Gratzl
Original Assignee
Interox
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 filed Critical Interox
Publication of YU136986A publication Critical patent/YU136986A/en
Publication of YU45351B publication Critical patent/YU45351B/en
Priority to HR920961A priority Critical patent/HRP920961B1/en

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

Abstract

1. Process for the delignification of cellulosic materials characterized in that in a first step the cellulosic materials are treated with an acid under regulated conditions to effect a decontamination of the cellulosic materials of the metals which they contain, in a second step the cellulosic materials of the first step are treated with hydrogen peroxyde under alcaline conditions and in a third step the cellulosic materials of the second step are boiled in the presence of soda.
YU1369/86A 1985-08-05 1986-07-31 Process for delignification of cellulose materials YU45351B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HR920961A HRP920961B1 (en) 1985-08-05 1992-10-02 Process for the delignification of cellulosic materials

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
YU136986A YU136986A (en) 1987-10-31
YU45351B true YU45351B (en) 1992-05-28

Family

ID=25065883

Family Applications (1)

Application Number Title Priority Date Filing Date
YU1369/86A YU45351B (en) 1985-08-05 1986-07-31 Process for delignification of cellulose materials

Country Status (13)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN167959B (en) * 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 (en) * 1965-03-19 1967-03-24 Electro Chimie Soc D Improvements in the manufacture of pulp
SE373896B (en) * 1972-07-05 1975-02-17 Mo Och Domsjoe Ab
SE380298B (en) * 1974-03-14 1975-11-03 Mo PROCEDURE FOR DELIGNIFICATION BY ACID-ALKALI TREATMENT OF LIGNOCELLUOSA-CONTAINING MATERIAL
SE7612248L (en) * 1976-11-03 1978-05-04 Mo Och Domsjoe Ab BOILING OF LIGNOCELLULOSE-MATERIALS
SU821614A1 (en) * 1979-06-19 1981-04-15 Белорусский Технологический Институт Им.C.M.Кирова Method of obtaining pulp-containing semiproduct
IN167959B (en) * 1985-08-05 1991-01-12 Interox

Also Published As

Publication number Publication date
FI85726B (en) 1992-02-14
EP0212329A1 (en) 1987-03-04
NO863133L (en) 1987-02-06
EP0212329B1 (en) 1990-10-10
FI863194A (en) 1987-02-06
PT83118B (en) 1988-10-14
FI863194A0 (en) 1986-08-05
BR8603672A (en) 1987-03-10
FI85726C (en) 1992-05-25
JPS6297992A (en) 1987-05-07
DE3674859D1 (en) 1990-11-15
NO168490C (en) 1992-02-26
AU6054486A (en) 1987-02-12
ATE57400T1 (en) 1990-10-15
JPH0742670B2 (en) 1995-05-10
YU136986A (en) 1987-10-31
NO168490B (en) 1991-11-18
NO863133D0 (en) 1986-08-04
PT83118A (en) 1986-09-01
AU591509B2 (en) 1989-12-07
NZ217002A (en) 1988-11-29
CA1311093C (en) 1992-12-08
ES2000385A6 (en) 1988-02-16

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