ATE33998T1 - Verfahren zur delignifizierung von sulfatzellstoffen. - Google Patents

Verfahren zur delignifizierung von sulfatzellstoffen.

Info

Publication number
ATE33998T1
ATE33998T1 AT85112163T AT85112163T ATE33998T1 AT E33998 T1 ATE33998 T1 AT E33998T1 AT 85112163 T AT85112163 T AT 85112163T AT 85112163 T AT85112163 T AT 85112163T AT E33998 T1 ATE33998 T1 AT E33998T1
Authority
AT
Austria
Prior art keywords
delignification
oxygen
sulfate pulp
hydrogen peroxide
pulp
Prior art date
Application number
AT85112163T
Other languages
English (en)
Inventor
Horst Dr Krueger
Hans-Ulrich Dr Suess
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Application granted granted Critical
Publication of ATE33998T1 publication Critical patent/ATE33998T1/de

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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • External Artificial Organs (AREA)
AT85112163T 1984-12-19 1985-09-25 Verfahren zur delignifizierung von sulfatzellstoffen. ATE33998T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843446301 DE3446301A1 (de) 1984-12-19 1984-12-19 Verfahren zur delignifizierung von sulfatzellstoffen
EP85112163A EP0185858B1 (de) 1984-12-19 1985-09-25 Verfahren zur Delignifizierung von Sulfatzellstoffen

Publications (1)

Publication Number Publication Date
ATE33998T1 true ATE33998T1 (de) 1988-05-15

Family

ID=6253194

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85112163T ATE33998T1 (de) 1984-12-19 1985-09-25 Verfahren zur delignifizierung von sulfatzellstoffen.

Country Status (6)

Country Link
EP (1) EP0185858B1 (de)
JP (1) JPS61146894A (de)
AT (1) ATE33998T1 (de)
DE (2) DE3446301A1 (de)
FI (1) FI853492A7 (de)
NO (1) NO853688L (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2230961A1 (en) * 1997-03-04 1998-09-04 Oji Paper Co., Ltd. Process for producing bleached pulp
US5919238A (en) * 1998-03-04 1999-07-06 Ford Global Technologies, Inc. Method for aligning a vehicle suspension
JPWO2015155924A1 (ja) 2014-04-08 2017-04-13 パナソニックＩｐマネジメント株式会社 有機ｅｌ素子及び照明装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719552A (en) * 1971-06-18 1973-03-06 American Cyanamid Co Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide
SE420430B (sv) * 1978-02-17 1981-10-05 Mo Och Domsjoe Ab Forfarande for blekning och extraktion av lignocellulosahaltig material med peroxidhaltiga blekmedel
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
FI831473L (fi) * 1981-09-04 1983-04-29 Weyerhaeuser Co Behandling av massa med syre
DE3207157C1 (de) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von halbgebleichten Zellstoffen

Also Published As

Publication number Publication date
DE3446301A1 (de) 1986-06-19
FI853492L (fi) 1986-06-20
NO853688L (no) 1986-06-20
DE3562496D1 (en) 1988-06-09
JPS61146894A (ja) 1986-07-04
FI853492A7 (fi) 1986-06-20
FI853492A0 (fi) 1985-09-12
EP0185858A1 (de) 1986-07-02
EP0185858B1 (de) 1988-05-04

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