JPH02216290A - セルロースパルプのアルカリ酸化脱リグニン方法 - Google Patents

セルロースパルプのアルカリ酸化脱リグニン方法

Info

Publication number
JPH02216290A
JPH02216290A JP1328534A JP32853489A JPH02216290A JP H02216290 A JPH02216290 A JP H02216290A JP 1328534 A JP1328534 A JP 1328534A JP 32853489 A JP32853489 A JP 32853489A JP H02216290 A JPH02216290 A JP H02216290A
Authority
JP
Japan
Prior art keywords
pulp
delignifying
bleaching
oxygen
weight
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.)
Pending
Application number
JP1328534A
Other languages
English (en)
Japanese (ja)
Inventor
Madhusudan Dattatraya Jayawant
マドフスダン・ダッタトラヤ・ジャヤワント
Souza Rupert D
ルパート・ドウソウザ
Jeffrey Shaocheng Hsieh
ジェフリー・シャオチェング・シー
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of JPH02216290A publication Critical patent/JPH02216290A/ja
Pending 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds

Landscapes

  • Paper (AREA)
JP1328534A 1988-12-20 1989-12-20 セルロースパルプのアルカリ酸化脱リグニン方法 Pending JPH02216290A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28678288A 1988-12-20 1988-12-20
US286,782 1988-12-20

Publications (1)

Publication Number Publication Date
JPH02216290A true JPH02216290A (ja) 1990-08-29

Family

ID=23100136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1328534A Pending JPH02216290A (ja) 1988-12-20 1989-12-20 セルロースパルプのアルカリ酸化脱リグニン方法

Country Status (9)

Country Link
EP (1) EP0377981A3 (fr)
JP (1) JPH02216290A (fr)
AU (1) AU4699989A (fr)
BR (1) BR8906570A (fr)
CA (1) CA2005369A1 (fr)
DK (1) DK648589A (fr)
FI (1) FI896085A7 (fr)
NO (1) NO895108L (fr)
ZA (1) ZA899775B (fr)

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 (fr) * 2020-04-16 2021-10-21 Bim Kemi Ab Procédé de délignification

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
CA2005369A1 (fr) 1990-06-20
DK648589A (da) 1990-06-21
FI896085A7 (fi) 1990-06-21
BR8906570A (pt) 1990-09-04
NO895108D0 (no) 1989-12-19
DK648589D0 (da) 1989-12-19
NO895108L (no) 1990-06-21
EP0377981A3 (fr) 1992-06-24
FI896085A0 (fi) 1989-12-19
EP0377981A2 (fr) 1990-07-18
AU4699989A (en) 1990-06-28
ZA899775B (en) 1991-08-28

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