ATE241033T1 - Schwefelfreies verfahren zur herstellung eines chemischen zellstoffs - Google Patents

Schwefelfreies verfahren zur herstellung eines chemischen zellstoffs

Info

Publication number
ATE241033T1
ATE241033T1 AT97943269T AT97943269T ATE241033T1 AT E241033 T1 ATE241033 T1 AT E241033T1 AT 97943269 T AT97943269 T AT 97943269T AT 97943269 T AT97943269 T AT 97943269T AT E241033 T1 ATE241033 T1 AT E241033T1
Authority
AT
Austria
Prior art keywords
producing
pulp
cooking
raw materials
chemical pulp
Prior art date
Application number
AT97943269T
Other languages
English (en)
Inventor
Soeren Gustavsson
Christer Fahlgren
Bo Boder
Ewa Westlund-Johansson
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Application granted granted Critical
Publication of ATE241033T1 publication Critical patent/ATE241033T1/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
    • 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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
AT97943269T 1996-09-26 1997-09-25 Schwefelfreies verfahren zur herstellung eines chemischen zellstoffs ATE241033T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603518A SE510775C2 (sv) 1996-09-26 1996-09-26 Svavelfri kokning av kemisk massa
PCT/SE1997/001610 WO1998013547A1 (en) 1996-09-26 1997-09-25 Cooking of chemical pulp in sulphur-free liquor containing a delignification-accelerating compound

Publications (1)

Publication Number Publication Date
ATE241033T1 true ATE241033T1 (de) 2003-06-15

Family

ID=20404039

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97943269T ATE241033T1 (de) 1996-09-26 1997-09-25 Schwefelfreies verfahren zur herstellung eines chemischen zellstoffs

Country Status (5)

Country Link
EP (1) EP0928349B1 (de)
AT (1) ATE241033T1 (de)
DE (1) DE69722226D1 (de)
SE (1) SE510775C2 (de)
WO (1) WO1998013547A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6241851B1 (en) 1998-03-03 2001-06-05 Andritz-Ahlstrom Inc. Treatment of cellulose material with additives while producing cellulose pulp
CA2318027C (en) 1999-09-13 2008-07-08 Andritz-Ahlstrom Inc. Treating pulp with yield or strength-enhancing additive
CN105200838A (zh) * 2015-09-18 2015-12-30 新疆国力源投资有限公司 一种制备竹柳漂白浆的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181565A (en) * 1976-12-10 1980-01-01 Honshu Seishi Kabushiki Kaisha Process for cooking lignocellulosic material in the presence of hydroxyanthracenes and derivatives thereof
AU516988B2 (en) * 1977-05-02 1981-07-02 Australian Paper Manufacturers Limited Alkaline pulping process
CA1132763A (en) * 1978-10-25 1982-10-05 Harry H. Holton Use of cyclic keto compounds as additives in vapor phase pulping process
SE502667C2 (sv) * 1993-07-12 1995-12-04 Kvaerner Pulping Tech Behandling av fibermaterial med komplexbildare före kokning

Also Published As

Publication number Publication date
EP0928349A1 (de) 1999-07-14
SE510775C2 (sv) 1999-06-21
SE9603518L (sv) 1998-03-27
SE9603518D0 (sv) 1996-09-26
DE69722226D1 (de) 2003-06-26
EP0928349B1 (de) 2003-05-21
WO1998013547A1 (en) 1998-04-02

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties