ZA899775B - Process for improved alkaline oxidative delignification of cellulose pulp - Google Patents

Process for improved alkaline oxidative delignification of cellulose pulp

Info

Publication number
ZA899775B
ZA899775B ZA899775A ZA899775A ZA899775B ZA 899775 B ZA899775 B ZA 899775B ZA 899775 A ZA899775 A ZA 899775A ZA 899775 A ZA899775 A ZA 899775A ZA 899775 B ZA899775 B ZA 899775B
Authority
ZA
South Africa
Prior art keywords
cellulose pulp
improved alkaline
alkaline oxidative
oxidative delignification
delignification
Prior art date
Application number
ZA899775A
Other languages
English (en)
Inventor
Madhusudan Dattatraya Jayawant
Dattatraya Jayawant Madhusudan
Rupert D Souza
D Souza Rupert
Jeffrey Shaocheng Hsieh
Shaocheng Hsieh Jeffrey
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of ZA899775B publication Critical patent/ZA899775B/xx

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
ZA899775A 1988-12-20 1989-12-20 Process for improved alkaline oxidative delignification of cellulose pulp ZA899775B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28678288A 1988-12-20 1988-12-20

Publications (1)

Publication Number Publication Date
ZA899775B true ZA899775B (en) 1991-08-28

Family

ID=23100136

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA899775A ZA899775B (en) 1988-12-20 1989-12-20 Process for improved alkaline oxidative delignification of cellulose pulp

Country Status (9)

Country Link
EP (1) EP0377981A3 (xx)
JP (1) JPH02216290A (xx)
AU (1) AU4699989A (xx)
BR (1) BR8906570A (xx)
CA (1) CA2005369A1 (xx)
DK (1) DK648589A (xx)
FI (1) FI896085A0 (xx)
NO (1) NO895108L (xx)
ZA (1) ZA899775B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006056A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
WO2021209586A1 (en) * 2020-04-16 2021-10-21 Bim Kemi Ab Delignification process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE434283B (sv) * 1982-12-01 1984-07-16 Mo Och Domsjoe Ab Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas

Also Published As

Publication number Publication date
EP0377981A3 (en) 1992-06-24
BR8906570A (pt) 1990-09-04
FI896085A0 (fi) 1989-12-19
JPH02216290A (ja) 1990-08-29
AU4699989A (en) 1990-06-28
NO895108D0 (no) 1989-12-19
DK648589A (da) 1990-06-21
NO895108L (no) 1990-06-21
DK648589D0 (da) 1989-12-19
EP0377981A2 (en) 1990-07-18
CA2005369A1 (en) 1990-06-20

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