ATE424474T1 - DAMPING METHOD - Google Patents

DAMPING METHOD

Info

Publication number
ATE424474T1
ATE424474T1 AT01960785T AT01960785T ATE424474T1 AT E424474 T1 ATE424474 T1 AT E424474T1 AT 01960785 T AT01960785 T AT 01960785T AT 01960785 T AT01960785 T AT 01960785T AT E424474 T1 ATE424474 T1 AT E424474T1
Authority
AT
Austria
Prior art keywords
fibre
damping method
pulped
steaming
loosening
Prior art date
Application number
AT01960785T
Other languages
German (de)
Inventor
Mika Repka
Original Assignee
Fortum Oyj
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8558881&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE424474(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fortum Oyj filed Critical Fortum Oyj
Application granted granted Critical
Publication of ATE424474T1 publication Critical patent/ATE424474T1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • 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
    • D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam

Abstract

The invention relates to a method of steaming lignocellulosic material to be pulped. The material is treated in a superheated steam atmosphere. The treatment can be used for loosening up the structure of fibre for mechanical pulping and/or for facilitating the absorption of delignifying chemicals into the fibre.
AT01960785T 2000-08-14 2001-08-09 DAMPING METHOD ATE424474T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20001787A FI117560B (en) 2000-08-14 2000-08-14 steam Handling

Publications (1)

Publication Number Publication Date
ATE424474T1 true ATE424474T1 (en) 2009-03-15

Family

ID=8558881

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01960785T ATE424474T1 (en) 2000-08-14 2001-08-09 DAMPING METHOD

Country Status (6)

Country Link
EP (1) EP1320640B1 (en)
AT (1) ATE424474T1 (en)
AU (1) AU2001282184A1 (en)
DE (1) DE60137856D1 (en)
FI (1) FI117560B (en)
WO (1) WO2002014599A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006202424A1 (en) * 2006-06-07 2008-01-03 Kristevefourspace Ussy Pty Ltd Manufacture of Bagasse Powder
DE102017222748B3 (en) 2017-12-14 2019-05-29 Hope Tree International Gmbh PROCESS FOR FIBER CLOSURE OF BAOBAB FIBERS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619348A (en) 1969-09-05 1971-11-09 Defibrator Ab Process for continuous cellulose cooking
SE340036B (en) * 1970-08-31 1971-11-01 Karlstad Mekaniska Ab
SE7317565L (en) * 1973-12-28 1975-06-30 Selander Stig Daniel
SE420224B (en) * 1979-08-17 1981-09-21 Sunds Defibrator Process and device for heating fibrous materials in the preparation of pulp obtained by defibrating wood chips

Also Published As

Publication number Publication date
WO2002014599A1 (en) 2002-02-21
FI20001787A0 (en) 2000-08-14
AU2001282184A1 (en) 2002-02-25
EP1320640B1 (en) 2009-03-04
FI20001787A (en) 2002-02-15
DE60137856D1 (en) 2009-04-16
EP1320640A1 (en) 2003-06-25
WO2002014599A9 (en) 2003-09-18
FI117560B (en) 2006-11-30

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Legal Events

Date Code Title Description
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